diff options
Diffstat (limited to 'drivers/mtd')
86 files changed, 4102 insertions, 2537 deletions
diff --git a/drivers/mtd/Kconfig b/drivers/mtd/Kconfig index 79a8ff542883..fb31a7f649a3 100644 --- a/drivers/mtd/Kconfig +++ b/drivers/mtd/Kconfig @@ -60,22 +60,6 @@ config MTD_CMDLINE_PARTS If unsure, say 'N'. -config MTD_AFS_PARTS - tristate "ARM Firmware Suite partition parsing" - depends on (ARM || ARM64) - help - The ARM Firmware Suite allows the user to divide flash devices into - multiple 'images'. Each such image has a header containing its name - and offset/size etc. - - If you need code which can detect and parse these tables, and - register MTD 'partitions' corresponding to each image detected, - enable this option. - - You will still need the parsing functions to be called by the driver - for your particular device. It won't happen automatically. The - 'physmap' map driver (CONFIG_MTD_PHYSMAP) does this, for example. - config MTD_OF_PARTS tristate "OpenFirmware partitioning information support" default y @@ -94,6 +78,7 @@ config MTD_BCM63XX_PARTS tristate "BCM63XX CFE partitioning support" depends on BCM63XX || BMIPS_GENERIC || COMPILE_TEST select CRC32 + select MTD_PARSER_IMAGETAG help This provides partition parsing for BCM63xx devices with CFE bootloaders. @@ -230,12 +215,11 @@ config SSFDC This enables read only access to SmartMedia formatted NAND flash. You can mount it with FAT file system. - config SM_FTL tristate "SmartMedia/xD new translation layer" depends on BLOCK select MTD_BLKDEVS - select MTD_NAND_ECC + select MTD_NAND_ECC_SW_HAMMING help This enables EXPERIMENTAL R/W support for SmartMedia/xD FTL (Flash translation layer). diff --git a/drivers/mtd/Makefile b/drivers/mtd/Makefile index 58fc327a5276..806287e80e84 100644 --- a/drivers/mtd/Makefile +++ b/drivers/mtd/Makefile @@ -9,7 +9,6 @@ mtd-y := mtdcore.o mtdsuper.o mtdconcat.o mtdpart.o mtdchar.o obj-$(CONFIG_MTD_OF_PARTS) += ofpart.o obj-$(CONFIG_MTD_CMDLINE_PARTS) += cmdlinepart.o -obj-$(CONFIG_MTD_AFS_PARTS) += afs.o obj-$(CONFIG_MTD_AR7_PARTS) += ar7part.o obj-$(CONFIG_MTD_BCM63XX_PARTS) += bcm63xxpart.o obj-$(CONFIG_MTD_BCM47XX_PARTS) += bcm47xxpart.o diff --git a/drivers/mtd/afs.c b/drivers/mtd/afs.c deleted file mode 100644 index d61b7edfc938..000000000000 --- a/drivers/mtd/afs.c +++ /dev/null @@ -1,266 +0,0 @@ -/*====================================================================== - - drivers/mtd/afs.c: ARM Flash Layout/Partitioning - - Copyright © 2000 ARM Limited - - This program is free software; you can redistribute it and/or modify - it under the terms of the GNU General Public License as published by - the Free Software Foundation; either version 2 of the License, or - (at your option) any later version. - - This program is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - GNU General Public License for more details. - - You should have received a copy of the GNU General Public License - along with this program; if not, write to the Free Software - Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA - - This is access code for flashes using ARM's flash partitioning - standards. - -======================================================================*/ - -#include <linux/module.h> -#include <linux/types.h> -#include <linux/kernel.h> -#include <linux/slab.h> -#include <linux/string.h> -#include <linux/init.h> - -#include <linux/mtd/mtd.h> -#include <linux/mtd/map.h> -#include <linux/mtd/partitions.h> - -#define AFSV1_FOOTER_MAGIC 0xA0FFFF9F - -struct footer_v1 { - u32 image_info_base; /* Address of first word of ImageFooter */ - u32 image_start; /* Start of area reserved by this footer */ - u32 signature; /* 'Magic' number proves it's a footer */ - u32 type; /* Area type: ARM Image, SIB, customer */ - u32 checksum; /* Just this structure */ -}; - -struct image_info_v1 { - u32 bootFlags; /* Boot flags, compression etc. */ - u32 imageNumber; /* Unique number, selects for boot etc. */ - u32 loadAddress; /* Address program should be loaded to */ - u32 length; /* Actual size of image */ - u32 address; /* Image is executed from here */ - char name[16]; /* Null terminated */ - u32 headerBase; /* Flash Address of any stripped header */ - u32 header_length; /* Length of header in memory */ - u32 headerType; /* AIF, RLF, s-record etc. */ - u32 checksum; /* Image checksum (inc. this struct) */ -}; - -static u32 word_sum(void *words, int num) -{ - u32 *p = words; - u32 sum = 0; - - while (num--) - sum += *p++; - - return sum; -} - -static int -afs_read_footer_v1(struct mtd_info *mtd, u_int *img_start, u_int *iis_start, - u_int off, u_int mask) -{ - struct footer_v1 fs; - u_int ptr = off + mtd->erasesize - sizeof(fs); - size_t sz; - int ret; - - ret = mtd_read(mtd, ptr, sizeof(fs), &sz, (u_char *)&fs); - if (ret >= 0 && sz != sizeof(fs)) - ret = -EINVAL; - - if (ret < 0) { - printk(KERN_ERR "AFS: mtd read failed at 0x%x: %d\n", - ptr, ret); - return ret; - } - - /* - * Does it contain the magic number? - */ - if (fs.signature != AFSV1_FOOTER_MAGIC) - return 0; - - /* - * Check the checksum. - */ - if (word_sum(&fs, sizeof(fs) / sizeof(u32)) != 0xffffffff) - return 0; - - /* - * Don't touch the SIB. - */ - if (fs.type == 2) - return 0; - - *iis_start = fs.image_info_base & mask; - *img_start = fs.image_start & mask; - - /* - * Check the image info base. This can not - * be located after the footer structure. - */ - if (*iis_start >= ptr) - return 0; - - /* - * Check the start of this image. The image - * data can not be located after this block. - */ - if (*img_start > off) - return 0; - - return 1; -} - -static int -afs_read_iis_v1(struct mtd_info *mtd, struct image_info_v1 *iis, u_int ptr) -{ - size_t sz; - int ret, i; - - memset(iis, 0, sizeof(*iis)); - ret = mtd_read(mtd, ptr, sizeof(*iis), &sz, (u_char *)iis); - if (ret < 0) - goto failed; - - if (sz != sizeof(*iis)) { - ret = -EINVAL; - goto failed; - } - - ret = 0; - - /* - * Validate the name - it must be NUL terminated. - */ - for (i = 0; i < sizeof(iis->name); i++) - if (iis->name[i] == '\0') - break; - - if (i < sizeof(iis->name)) - ret = 1; - - return ret; - - failed: - printk(KERN_ERR "AFS: mtd read failed at 0x%x: %d\n", - ptr, ret); - return ret; -} - -static int parse_afs_partitions(struct mtd_info *mtd, - const struct mtd_partition **pparts, - struct mtd_part_parser_data *data) -{ - struct mtd_partition *parts; - u_int mask, off, idx, sz; - int ret = 0; - char *str; - - /* - * This is the address mask; we use this to mask off out of - * range address bits. - */ - mask = mtd->size - 1; - - /* - * First, calculate the size of the array we need for the - * partition information. We include in this the size of - * the strings. - */ - for (idx = off = sz = 0; off < mtd->size; off += mtd->erasesize) { - struct image_info_v1 iis; - u_int iis_ptr, img_ptr; - - ret = afs_read_footer_v1(mtd, &img_ptr, &iis_ptr, off, mask); - if (ret < 0) - break; - if (ret) { - ret = afs_read_iis_v1(mtd, &iis, iis_ptr); - if (ret < 0) - break; - if (ret == 0) - continue; - - sz += sizeof(struct mtd_partition); - sz += strlen(iis.name) + 1; - idx += 1; - } - } - - if (!sz) - return ret; - - parts = kzalloc(sz, GFP_KERNEL); - if (!parts) - return -ENOMEM; - - str = (char *)(parts + idx); - - /* - * Identify the partitions - */ - for (idx = off = 0; off < mtd->size; off += mtd->erasesize) { - struct image_info_v1 iis; - u_int iis_ptr, img_ptr; - - /* Read the footer. */ - ret = afs_read_footer_v1(mtd, &img_ptr, &iis_ptr, off, mask); - if (ret < 0) - break; - if (ret == 0) - continue; - - /* Read the image info block */ - ret = afs_read_iis_v1(mtd, &iis, iis_ptr); - if (ret < 0) - break; - if (ret == 0) - continue; - - strcpy(str, iis.name); - - parts[idx].name = str; - parts[idx].size = (iis.length + mtd->erasesize - 1) & ~(mtd->erasesize - 1); - parts[idx].offset = img_ptr; - parts[idx].mask_flags = 0; - - printk(" mtd%d: at 0x%08x, %5lluKiB, %8u, %s\n", - idx, img_ptr, parts[idx].size / 1024, - iis.imageNumber, str); - - idx += 1; - str = str + strlen(iis.name) + 1; - } - - if (!idx) { - kfree(parts); - parts = NULL; - } - - *pparts = parts; - return idx ? idx : ret; -} - -static struct mtd_part_parser afs_parser = { - .parse_fn = parse_afs_partitions, - .name = "afs", -}; -module_mtd_part_parser(afs_parser); - -MODULE_AUTHOR("ARM Ltd"); -MODULE_DESCRIPTION("ARM Firmware Suite partition parser"); -MODULE_LICENSE("GPL"); diff --git a/drivers/mtd/bcm63xxpart.c b/drivers/mtd/bcm63xxpart.c index 41d1d3149c61..b2bd04764e95 100644 --- a/drivers/mtd/bcm63xxpart.c +++ b/drivers/mtd/bcm63xxpart.c @@ -34,6 +34,7 @@ #include <linux/vmalloc.h> #include <linux/mtd/mtd.h> #include <linux/mtd/partitions.h> +#include <linux/of.h> #define BCM963XX_CFE_BLOCK_SIZE SZ_64K /* always at least 64KiB */ @@ -93,51 +94,19 @@ static int bcm63xx_read_nvram(struct mtd_info *master, return 0; } -static int bcm63xx_read_image_tag(struct mtd_info *master, const char *name, - loff_t tag_offset, struct bcm_tag *buf) -{ - int ret; - size_t retlen; - u32 computed_crc; - - ret = mtd_read(master, tag_offset, sizeof(*buf), &retlen, (void *)buf); - if (ret) - return ret; - - if (retlen != sizeof(*buf)) - return -EIO; - - computed_crc = crc32_le(IMAGETAG_CRC_START, (u8 *)buf, - offsetof(struct bcm_tag, header_crc)); - if (computed_crc == buf->header_crc) { - STR_NULL_TERMINATE(buf->board_id); - STR_NULL_TERMINATE(buf->tag_version); - - pr_info("%s: CFE image tag found at 0x%llx with version %s, board type %s\n", - name, tag_offset, buf->tag_version, buf->board_id); - - return 0; - } - - pr_warn("%s: CFE image tag at 0x%llx CRC invalid (expected %08x, actual %08x)\n", - name, tag_offset, buf->header_crc, computed_crc); - return 1; -} +static const char * const bcm63xx_cfe_part_types[] = { + "bcm963xx-imagetag", + NULL, +}; static int bcm63xx_parse_cfe_nor_partitions(struct mtd_info *master, const struct mtd_partition **pparts, struct bcm963xx_nvram *nvram) { - /* CFE, NVRAM and global Linux are always present */ - int nrparts = 3, curpart = 0; - struct bcm_tag *buf = NULL; struct mtd_partition *parts; - int ret; - unsigned int rootfsaddr, kerneladdr, spareaddr; - unsigned int rootfslen, kernellen, sparelen, totallen; + int nrparts = 3, curpart = 0; unsigned int cfelen, nvramlen; unsigned int cfe_erasesize; int i; - bool rootfs_first = false; cfe_erasesize = max_t(uint32_t, master->erasesize, BCM963XX_CFE_BLOCK_SIZE); @@ -146,83 +115,9 @@ static int bcm63xx_parse_cfe_nor_partitions(struct mtd_info *master, nvramlen = nvram->psi_size * SZ_1K; nvramlen = roundup(nvramlen, cfe_erasesize); - buf = vmalloc(sizeof(struct bcm_tag)); - if (!buf) - return -ENOMEM; - - /* Get the tag */ - ret = bcm63xx_read_image_tag(master, "rootfs", cfelen, buf); - if (!ret) { - STR_NULL_TERMINATE(buf->flash_image_start); - if (kstrtouint(buf->flash_image_start, 10, &rootfsaddr) || - rootfsaddr < BCM963XX_EXTENDED_SIZE) { - pr_err("invalid rootfs address: %*ph\n", - (int)sizeof(buf->flash_image_start), - buf->flash_image_start); - goto invalid_tag; - } - - STR_NULL_TERMINATE(buf->kernel_address); - if (kstrtouint(buf->kernel_address, 10, &kerneladdr) || - kerneladdr < BCM963XX_EXTENDED_SIZE) { - pr_err("invalid kernel address: %*ph\n", - (int)sizeof(buf->kernel_address), - buf->kernel_address); - goto invalid_tag; - } - - STR_NULL_TERMINATE(buf->kernel_length); - if (kstrtouint(buf->kernel_length, 10, &kernellen)) { - pr_err("invalid kernel length: %*ph\n", - (int)sizeof(buf->kernel_length), - buf->kernel_length); - goto invalid_tag; - } - - STR_NULL_TERMINATE(buf->total_length); - if (kstrtouint(buf->total_length, 10, &totallen)) { - pr_err("invalid total length: %*ph\n", - (int)sizeof(buf->total_length), - buf->total_length); - goto invalid_tag; - } - - kerneladdr = kerneladdr - BCM963XX_EXTENDED_SIZE; - rootfsaddr = rootfsaddr - BCM963XX_EXTENDED_SIZE; - spareaddr = roundup(totallen, master->erasesize) + cfelen; - - if (rootfsaddr < kerneladdr) { - /* default Broadcom layout */ - rootfslen = kerneladdr - rootfsaddr; - rootfs_first = true; - } else { - /* OpenWrt layout */ - rootfsaddr = kerneladdr + kernellen; - rootfslen = spareaddr - rootfsaddr; - } - } else if (ret > 0) { -invalid_tag: - kernellen = 0; - rootfslen = 0; - rootfsaddr = 0; - spareaddr = cfelen; - } else { - goto out; - } - sparelen = master->size - spareaddr - nvramlen; - - /* Determine number of partitions */ - if (rootfslen > 0) - nrparts++; - - if (kernellen > 0) - nrparts++; - parts = kzalloc(sizeof(*parts) * nrparts + 10 * nrparts, GFP_KERNEL); - if (!parts) { - ret = -ENOMEM; - goto out; - } + if (!parts) + return -ENOMEM; /* Start building partition list */ parts[curpart].name = "CFE"; @@ -230,30 +125,6 @@ invalid_tag: parts[curpart].size = cfelen; curpart++; - if (kernellen > 0) { - int kernelpart = curpart; - - if (rootfslen > 0 && rootfs_first) - kernelpart++; - parts[kernelpart].name = "kernel"; - parts[kernelpart].offset = kerneladdr; - parts[kernelpart].size = kernellen; - curpart++; - } - - if (rootfslen > 0) { - int rootfspart = curpart; - - if (kernellen > 0 && rootfs_first) - rootfspart--; - parts[rootfspart].name = "rootfs"; - parts[rootfspart].offset = rootfsaddr; - parts[rootfspart].size = rootfslen; - if (sparelen > 0 && !rootfs_first) - parts[rootfspart].size += sparelen; - curpart++; - } - parts[curpart].name = "nvram"; parts[curpart].offset = master->size - nvramlen; parts[curpart].size = nvramlen; @@ -263,22 +134,13 @@ invalid_tag: parts[curpart].name = "linux"; parts[curpart].offset = cfelen; parts[curpart].size = master->size - cfelen - nvramlen; + parts[curpart].types = bcm63xx_cfe_part_types; for (i = 0; i < nrparts; i++) pr_info("Partition %d is %s offset %llx and length %llx\n", i, parts[i].name, parts[i].offset, parts[i].size); - pr_info("Spare partition is offset %x and length %x\n", spareaddr, - sparelen); - *pparts = parts; - ret = 0; - -out: - vfree(buf); - - if (ret) - return ret; return nrparts; } @@ -311,9 +173,16 @@ out: return ret; }; +static const struct of_device_id parse_bcm63xx_cfe_match_table[] = { + { .compatible = "brcm,bcm963xx-cfe-nor-partitions" }, + {}, +}; +MODULE_DEVICE_TABLE(of, parse_bcm63xx_cfe_match_table); + static struct mtd_part_parser bcm63xx_cfe_parser = { .parse_fn = bcm63xx_parse_cfe_partitions, .name = "bcm63xxpart", + .of_match_table = parse_bcm63xx_cfe_match_table, }; module_mtd_part_parser(bcm63xx_cfe_parser); diff --git a/drivers/mtd/chips/cfi_cmdset_0002.c b/drivers/mtd/chips/cfi_cmdset_0002.c index 7b7286b4d81e..c8fa5906bdf9 100644 --- a/drivers/mtd/chips/cfi_cmdset_0002.c +++ b/drivers/mtd/chips/cfi_cmdset_0002.c @@ -869,6 +869,7 @@ static int get_chip(struct map_info *map, struct flchip *chip, unsigned long adr /* Only if there's no operation suspended... */ if (mode == FL_READY && chip->oldstate == FL_READY) return 0; + /* fall through */ default: sleep: @@ -2751,6 +2752,7 @@ static void cfi_amdstd_sync (struct mtd_info *mtd) * as the whole point is that nobody can do anything * with the chip now anyway. */ + /* fall through */ case FL_SYNCING: mutex_unlock(&chip->mutex); break; diff --git a/drivers/mtd/chips/cfi_util.c b/drivers/mtd/chips/cfi_util.c index 6f16552cd59f..e3b266ee06af 100644 --- a/drivers/mtd/chips/cfi_util.c +++ b/drivers/mtd/chips/cfi_util.c @@ -109,10 +109,13 @@ map_word cfi_build_cmd(u_long cmd, struct map_info *map, struct cfi_private *cfi case 8: onecmd |= (onecmd << (chip_mode * 32)); #endif + /* fall through */ case 4: onecmd |= (onecmd << (chip_mode * 16)); + /* fall through */ case 2: onecmd |= (onecmd << (chip_mode * 8)); + /* fall through */ case 1: ; } @@ -162,10 +165,13 @@ unsigned long cfi_merge_status(map_word val, struct map_info *map, case 8: res |= (onestat >> (chip_mode * 32)); #endif + /* fall through */ case 4: res |= (onestat >> (chip_mode * 16)); + /* fall through */ case 2: res |= (onestat >> (chip_mode * 8)); + /* fall through */ case 1: ; } diff --git a/drivers/mtd/devices/Kconfig b/drivers/mtd/devices/Kconfig index aa983422aa97..f9258d666846 100644 --- a/drivers/mtd/devices/Kconfig +++ b/drivers/mtd/devices/Kconfig @@ -207,7 +207,7 @@ comment "Disk-On-Chip Device Drivers" config MTD_DOCG3 tristate "M-Systems Disk-On-Chip G3" select BCH - select BCH_CONST_PARAMS if !MTD_NAND_BCH + select BCH_CONST_PARAMS if !MTD_NAND_ECC_SW_BCH select BITREVERSE help This provides an MTD device driver for the M-Systems DiskOnChip diff --git a/drivers/mtd/devices/phram.c b/drivers/mtd/devices/phram.c index 9ee04b5f9311..8a8627c30aed 100644 --- a/drivers/mtd/devices/phram.c +++ b/drivers/mtd/devices/phram.c @@ -147,8 +147,10 @@ static int parse_num64(uint64_t *num64, char *token) switch (token[len - 2]) { case 'G': shift += 10; + /* fall through */ case 'M': shift += 10; + /* fall through */ case 'k': shift += 10; token[len - 2] = 0; diff --git a/drivers/mtd/lpddr/lpddr_cmds.c b/drivers/mtd/lpddr/lpddr_cmds.c index b13557fe52bd..76a4c73e100e 100644 --- a/drivers/mtd/lpddr/lpddr_cmds.c +++ b/drivers/mtd/lpddr/lpddr_cmds.c @@ -318,6 +318,7 @@ static int chip_ready(struct map_info *map, struct flchip *chip, int mode) /* Only if there's no operation suspended... */ if (mode == FL_READY && chip->oldstate == FL_READY) return 0; + /* fall through */ default: sleep: diff --git a/drivers/mtd/maps/Kconfig b/drivers/mtd/maps/Kconfig index e0cf869c8544..544ed1931843 100644 --- a/drivers/mtd/maps/Kconfig +++ b/drivers/mtd/maps/Kconfig @@ -10,7 +10,7 @@ config MTD_COMPLEX_MAPPINGS config MTD_PHYSMAP tristate "Flash device in physical memory map" - depends on MTD_CFI || MTD_JEDECPROBE || MTD_ROM || MTD_LPDDR + depends on MTD_CFI || MTD_JEDECPROBE || MTD_ROM || MTD_RAM || MTD_LPDDR help This provides a 'mapping' driver which allows the NOR Flash and ROM driver code to communicate with chips which are mapped diff --git a/drivers/mtd/maps/physmap-core.c b/drivers/mtd/maps/physmap-core.c index d9a3e4bebe5d..21b556afc305 100644 --- a/drivers/mtd/maps/physmap-core.c +++ b/drivers/mtd/maps/physmap-core.c @@ -132,6 +132,8 @@ static void physmap_set_addr_gpios(struct physmap_flash_info *info, gpiod_set_value(info->gpios->desc[i], !!(BIT(i) & ofs)); } + + info->gpio_values = ofs; } #define win_mask(order) (BIT(order) - 1) diff --git a/drivers/mtd/maps/physmap-gemini.c b/drivers/mtd/maps/physmap-gemini.c index 60775b208fc9..a289c8b5cabf 100644 --- a/drivers/mtd/maps/physmap-gemini.c +++ b/drivers/mtd/maps/physmap-gemini.c @@ -86,7 +86,7 @@ static void gemini_flash_disable_pins(void) static map_word __xipram gemini_flash_map_read(struct map_info *map, unsigned long ofs) { - map_word __xipram ret; + map_word ret; gemini_flash_enable_pins(); ret = inline_map_read(map, ofs); diff --git a/drivers/mtd/maps/uclinux.c b/drivers/mtd/maps/uclinux.c index aef030ca8601..de4c46318abb 100644 --- a/drivers/mtd/maps/uclinux.c +++ b/drivers/mtd/maps/uclinux.c @@ -31,13 +31,7 @@ #define MAP_NAME "ram" #endif -/* - * Blackfin uses uclinux_ram_map during startup, so it must not be static. - * Provide a dummy declaration to make sparse happy. - */ -extern struct map_info uclinux_ram_map; - -struct map_info uclinux_ram_map = { +static struct map_info uclinux_ram_map = { .name = MAP_NAME, .size = 0, }; diff --git a/drivers/mtd/mtdpart.c b/drivers/mtd/mtdpart.c index 37f174ccbcec..dfa241ad018b 100644 --- a/drivers/mtd/mtdpart.c +++ b/drivers/mtd/mtdpart.c @@ -572,7 +572,7 @@ static ssize_t mtd_partition_offset_show(struct device *dev, { struct mtd_info *mtd = dev_get_drvdata(dev); struct mtd_part *part = mtd_to_part(mtd); - return snprintf(buf, PAGE_SIZE, "%lld\n", part->offset); + return snprintf(buf, PAGE_SIZE, "%llu\n", part->offset); } static DEVICE_ATTR(offset, S_IRUGO, mtd_partition_offset_show, NULL); diff --git a/drivers/mtd/nand/Kconfig b/drivers/mtd/nand/Kconfig index 9033215e62ea..495751ed3fd7 100644 --- a/drivers/mtd/nand/Kconfig +++ b/drivers/mtd/nand/Kconfig @@ -2,6 +2,5 @@ config MTD_NAND_CORE tristate source "drivers/mtd/nand/onenand/Kconfig" - source "drivers/mtd/nand/raw/Kconfig" source "drivers/mtd/nand/spi/Kconfig" diff --git a/drivers/mtd/nand/core.c b/drivers/mtd/nand/core.c index 9c9f8936b63b..b6de955ac8bf 100644 --- a/drivers/mtd/nand/core.c +++ b/drivers/mtd/nand/core.c @@ -174,6 +174,40 @@ int nanddev_mtd_erase(struct mtd_info *mtd, struct erase_info *einfo) EXPORT_SYMBOL_GPL(nanddev_mtd_erase); /** + * nanddev_mtd_max_bad_blocks() - Get the maximum number of bad eraseblock on + * a specific region of the NAND device + * @mtd: MTD device + * @offs: offset of the NAND region + * @len: length of the NAND region + * + * Default implementation for mtd->_max_bad_blocks(). Only works if + * nand->memorg.max_bad_eraseblocks_per_lun is > 0. + * + * Return: a positive number encoding the maximum number of eraseblocks on a + * portion of memory, a negative error code otherwise. + */ +int nanddev_mtd_max_bad_blocks(struct mtd_info *mtd, loff_t offs, size_t len) +{ + struct nand_device *nand = mtd_to_nanddev(mtd); + struct nand_pos pos, end; + unsigned int max_bb = 0; + + if (!nand->memorg.max_bad_eraseblocks_per_lun) + return -ENOTSUPP; + + nanddev_offs_to_pos(nand, offs, &pos); + nanddev_offs_to_pos(nand, offs + len, &end); + + for (nanddev_offs_to_pos(nand, offs, &pos); + nanddev_pos_cmp(&pos, &end) < 0; + nanddev_pos_next_lun(nand, &pos)) + max_bb += nand->memorg.max_bad_eraseblocks_per_lun; + + return max_bb; +} +EXPORT_SYMBOL_GPL(nanddev_mtd_max_bad_blocks); + +/** * nanddev_init() - Initialize a NAND device * @nand: NAND device * @ops: NAND device operations diff --git a/drivers/mtd/nand/onenand/onenand_base.c b/drivers/mtd/nand/onenand/onenand_base.c index 4ca4b194e7d7..f41d76248550 100644 --- a/drivers/mtd/nand/onenand/onenand_base.c +++ b/drivers/mtd/nand/onenand/onenand_base.c @@ -2458,7 +2458,7 @@ static int onenand_default_block_markbad(struct mtd_info *mtd, loff_t ofs) bbm->bbt[block >> 2] |= 0x01 << ((block & 0x03) << 1); /* We write two bytes, so we don't have to mess with 16-bit access */ - ofs += mtd->oobsize + (bbm->badblockpos & ~0x01); + ofs += mtd->oobsize + (this->badblockpos & ~0x01); /* FIXME : What to do when marking SLC block in partition * with MLC erasesize? For now, it is not advisable to * create partitions containing both SLC and MLC regions. @@ -3967,6 +3967,9 @@ int onenand_scan(struct mtd_info *mtd, int maxchips) if (!(this->options & ONENAND_SKIP_INITIAL_UNLOCKING)) this->unlock_all(mtd); + /* Set the bad block marker position */ + this->badblockpos = ONENAND_BADBLOCK_POS; + ret = this->scan_bbt(mtd); if ((!FLEXONENAND(this)) || ret) return ret; diff --git a/drivers/mtd/nand/onenand/onenand_bbt.c b/drivers/mtd/nand/onenand/onenand_bbt.c index dde20487937d..57c31c81be18 100644 --- a/drivers/mtd/nand/onenand/onenand_bbt.c +++ b/drivers/mtd/nand/onenand/onenand_bbt.c @@ -190,9 +190,6 @@ static int onenand_scan_bbt(struct mtd_info *mtd, struct nand_bbt_descr *bd) if (!bbm->bbt) return -ENOMEM; - /* Set the bad block position */ - bbm->badblockpos = ONENAND_BADBLOCK_POS; - /* Set erase shift */ bbm->bbt_erase_shift = this->erase_shift; diff --git a/drivers/mtd/nand/raw/Kconfig b/drivers/mtd/nand/raw/Kconfig index e604625e2dfa..0500c42f31cb 100644 --- a/drivers/mtd/nand/raw/Kconfig +++ b/drivers/mtd/nand/raw/Kconfig @@ -1,34 +1,29 @@ -config MTD_NAND_ECC +config MTD_NAND_ECC_SW_HAMMING tristate -config MTD_NAND_ECC_SMC +config MTD_NAND_ECC_SW_HAMMING_SMC bool "NAND ECC Smart Media byte order" - depends on MTD_NAND_ECC + depends on MTD_NAND_ECC_SW_HAMMING default n help Software ECC according to the Smart Media Specification. The original Linux implementation had byte 0 and 1 swapped. - -menuconfig MTD_NAND +menuconfig MTD_RAW_NAND tristate "Raw/Parallel NAND Device Support" depends on MTD - select MTD_NAND_ECC + select MTD_NAND_CORE + select MTD_NAND_ECC_SW_HAMMING help This enables support for accessing all type of raw/parallel NAND flash devices. For further information see <http://www.linux-mtd.infradead.org/doc/nand.html>. -if MTD_NAND +if MTD_RAW_NAND -config MTD_NAND_BCH - tristate - select BCH - depends on MTD_NAND_ECC_BCH - default MTD_NAND - -config MTD_NAND_ECC_BCH +config MTD_NAND_ECC_SW_BCH bool "Support software BCH ECC" + select BCH default n help This enables support for software BCH error correction. Binary BCH @@ -36,15 +31,13 @@ config MTD_NAND_ECC_BCH ECC codes. They are used with NAND devices requiring more than 1 bit of error correction. -config MTD_SM_COMMON - tristate - default n +comment "Raw/parallel NAND flash controllers" config MTD_NAND_DENALI tristate config MTD_NAND_DENALI_PCI - tristate "Support Denali NAND controller on Intel Moorestown" + tristate "Denali NAND controller on Intel Moorestown" select MTD_NAND_DENALI depends on PCI help @@ -52,31 +45,22 @@ config MTD_NAND_DENALI_PCI Denali NAND controller core. config MTD_NAND_DENALI_DT - tristate "Support Denali NAND controller as a DT device" + tristate "Denali NAND controller as a DT device" select MTD_NAND_DENALI depends on HAS_DMA && HAVE_CLK && OF help Enable the driver for NAND flash on platforms using a Denali NAND controller as a DT device. -config MTD_NAND_GPIO - tristate "GPIO assisted NAND Flash driver" - depends on GPIOLIB || COMPILE_TEST - depends on HAS_IOMEM - help - This enables a NAND flash driver where control signals are - connected to GPIO pins, and commands and data are communicated - via a memory mapped interface. - config MTD_NAND_AMS_DELTA - tristate "NAND Flash device on Amstrad E3" + tristate "Amstrad E3 NAND controller" depends on MACH_AMS_DELTA || COMPILE_TEST default y help Support for NAND flash on Amstrad E3 (Delta). config MTD_NAND_OMAP2 - tristate "NAND Flash device on OMAP2, OMAP3, OMAP4 and Keystone" + tristate "OMAP2, OMAP3, OMAP4 and Keystone NAND controller" depends on ARCH_OMAP2PLUS || ARCH_KEYSTONE || COMPILE_TEST depends on HAS_IOMEM help @@ -98,18 +82,6 @@ config MTD_NAND_OMAP_BCH config MTD_NAND_OMAP_BCH_BUILD def_tristate MTD_NAND_OMAP2 && MTD_NAND_OMAP_BCH -config MTD_NAND_RICOH - tristate "Ricoh xD card reader" - default n - depends on PCI - select MTD_SM_COMMON - help - Enable support for Ricoh R5C852 xD card reader - You also need to enable ether - NAND SSFDC (SmartMedia) read only translation layer' or new - expermental, readwrite - 'SmartMedia/xD new translation layer' - config MTD_NAND_AU1550 tristate "Au1550/1200 NAND support" depends on MIPS_ALCHEMY @@ -117,8 +89,15 @@ config MTD_NAND_AU1550 This enables the driver for the NAND flash controller on the AMD/Alchemy 1550 SOC. +config MTD_NAND_NDFC + tristate "IBM/MCC 4xx NAND controller" + depends on 4xx + select MTD_NAND_ECC_SW_HAMMING_SMC + help + NDFC Nand Flash Controllers are integrated in IBM/AMCC's 4xx SoCs + config MTD_NAND_S3C2410 - tristate "NAND Flash support for Samsung S3C SoCs" + tristate "Samsung S3C NAND controller" depends on ARCH_S3C24XX || ARCH_S3C64XX help This enables the NAND flash controller on the S3C24xx and S3C64xx @@ -128,18 +107,11 @@ config MTD_NAND_S3C2410 must advertise a platform_device for the driver to attach. config MTD_NAND_S3C2410_DEBUG - bool "Samsung S3C NAND driver debug" + bool "Samsung S3C NAND controller debug" depends on MTD_NAND_S3C2410 help Enable debugging of the S3C NAND driver -config MTD_NAND_NDFC - tristate "NDFC NanD Flash Controller" - depends on 4xx - select MTD_NAND_ECC_SMC - help - NDFC Nand Flash Controllers are integrated in IBM/AMCC's 4xx SoCs - config MTD_NAND_S3C2410_CLKSTOP bool "Samsung S3C NAND IDLE clock stop" depends on MTD_NAND_S3C2410 @@ -151,89 +123,19 @@ config MTD_NAND_S3C2410_CLKSTOP approximately 5mA of power when there is nothing happening. config MTD_NAND_TANGO - tristate "NAND Flash support for Tango chips" + tristate "Tango NAND controller" depends on ARCH_TANGO || COMPILE_TEST depends on HAS_IOMEM help Enables the NAND Flash controller on Tango chips. -config MTD_NAND_DISKONCHIP - tristate "DiskOnChip 2000, Millennium and Millennium Plus (NAND reimplementation)" - depends on HAS_IOMEM - select REED_SOLOMON - select REED_SOLOMON_DEC16 - help - This is a reimplementation of M-Systems DiskOnChip 2000, - Millennium and Millennium Plus as a standard NAND device driver, - as opposed to the earlier self-contained MTD device drivers. - This should enable, among other things, proper JFFS2 operation on - these devices. - -config MTD_NAND_DISKONCHIP_PROBE_ADVANCED - bool "Advanced detection options for DiskOnChip" - depends on MTD_NAND_DISKONCHIP - help - This option allows you to specify nonstandard address at which to - probe for a DiskOnChip, or to change the detection options. You - are unlikely to need any of this unless you are using LinuxBIOS. - Say 'N'. - -config MTD_NAND_DISKONCHIP_PROBE_ADDRESS - hex "Physical address of DiskOnChip" if MTD_NAND_DISKONCHIP_PROBE_ADVANCED - depends on MTD_NAND_DISKONCHIP - default "0" - help - By default, the probe for DiskOnChip devices will look for a - DiskOnChip at every multiple of 0x2000 between 0xC8000 and 0xEE000. - This option allows you to specify a single address at which to probe - for the device, which is useful if you have other devices in that - range which get upset when they are probed. - - (Note that on PowerPC, the normal probe will only check at - 0xE4000000.) - - Normally, you should leave this set to zero, to allow the probe at - the normal addresses. - -config MTD_NAND_DISKONCHIP_PROBE_HIGH - bool "Probe high addresses" - depends on MTD_NAND_DISKONCHIP_PROBE_ADVANCED - help - By default, the probe for DiskOnChip devices will look for a - DiskOnChip at every multiple of 0x2000 between 0xC8000 and 0xEE000. - This option changes to make it probe between 0xFFFC8000 and - 0xFFFEE000. Unless you are using LinuxBIOS, this is unlikely to be - useful to you. Say 'N'. - -config MTD_NAND_DISKONCHIP_BBTWRITE - bool "Allow BBT writes on DiskOnChip Millennium and 2000TSOP" - depends on MTD_NAND_DISKONCHIP - help - On DiskOnChip devices shipped with the INFTL filesystem (Millennium - and 2000 TSOP/Alon), Linux reserves some space at the end of the - device for the Bad Block Table (BBT). If you have existing INFTL - data on your device (created by non-Linux tools such as M-Systems' - DOS drivers), your data might overlap the area Linux wants to use for - the BBT. If this is a concern for you, leave this option disabled and - Linux will not write BBT data into this area. - The downside of leaving this option disabled is that if bad blocks - are detected by Linux, they will not be recorded in the BBT, which - could cause future problems. - Once you enable this option, new filesystems (INFTL or others, created - in Linux or other operating systems) will not use the reserved area. - The only reason not to enable this option is to prevent damage to - preexisting filesystems. - Even if you leave this disabled, you can enable BBT writes at module - load time (assuming you build diskonchip as a module) with the module - parameter "inftl_bbt_write=1". - config MTD_NAND_SHARPSL - tristate "Support for NAND Flash on Sharp SL Series (C7xx + others)" + tristate "Sharp SL Series (C7xx + others) NAND controller" depends on ARCH_PXA || COMPILE_TEST depends on HAS_IOMEM config MTD_NAND_CAFE - tristate "NAND support for OLPC CAFÉ chip" + tristate "OLPC CAFÉ NAND controller" depends on PCI select REED_SOLOMON select REED_SOLOMON_DEC16 @@ -242,7 +144,7 @@ config MTD_NAND_CAFE laptop. config MTD_NAND_CS553X - tristate "NAND support for CS5535/CS5536 (AMD Geode companion chip)" + tristate "CS5535/CS5536 (AMD Geode companion) NAND controller" depends on X86_32 depends on !UML && HAS_IOMEM help @@ -256,7 +158,7 @@ config MTD_NAND_CS553X If you say "m", the module will be called cs553x_nand. config MTD_NAND_ATMEL - tristate "Support for NAND Flash / SmartMedia on AT91" + tristate "Atmel AT91 NAND Flash/SmartMedia NAND controller" depends on ARCH_AT91 || COMPILE_TEST depends on HAS_IOMEM select GENERIC_ALLOCATOR @@ -265,8 +167,17 @@ config MTD_NAND_ATMEL Enables support for NAND Flash / Smart Media Card interface on Atmel AT91 processors. +config MTD_NAND_ORION + tristate "Marvell Orion NAND controller" + depends on PLAT_ORION + help + This enables the NAND flash controller on Orion machines. + + No board specific support is done by this driver, each board + must advertise a platform_device for the driver to attach. + config MTD_NAND_MARVELL - tristate "NAND controller support on Marvell boards" + tristate "Marvell EBU NAND controller" depends on PXA3xx || ARCH_MMP || PLAT_ORION || ARCH_MVEBU || \ COMPILE_TEST depends on HAS_IOMEM @@ -278,7 +189,7 @@ config MTD_NAND_MARVELL - 64-bit Aramda platforms (7k, 8k) (NFCv2) config MTD_NAND_SLC_LPC32XX - tristate "NXP LPC32xx SLC Controller" + tristate "NXP LPC32xx SLC NAND controller" depends on ARCH_LPC32XX || COMPILE_TEST depends on HAS_IOMEM help @@ -290,7 +201,7 @@ config MTD_NAND_SLC_LPC32XX by the SLC NAND controller. config MTD_NAND_MLC_LPC32XX - tristate "NXP LPC32xx MLC Controller" + tristate "NXP LPC32xx MLC NAND controller" depends on ARCH_LPC32XX || COMPILE_TEST depends on HAS_IOMEM help @@ -302,38 +213,23 @@ config MTD_NAND_MLC_LPC32XX by the MLC NAND controller. config MTD_NAND_CM_X270 - tristate "Support for NAND Flash on CM-X270 modules" + tristate "CM-X270 modules NAND controller" depends on MACH_ARMCORE config MTD_NAND_PASEMI - tristate "NAND support for PA Semi PWRficient" + tristate "PA Semi PWRficient NAND controller" depends on PPC_PASEMI help Enables support for NAND Flash interface on PA Semi PWRficient based boards config MTD_NAND_TMIO - tristate "NAND Flash device on Toshiba Mobile IO Controller" + tristate "Toshiba Mobile IO NAND controller" depends on MFD_TMIO help Support for NAND flash connected to a Toshiba Mobile IO Controller in some PDAs, including the Sharp SL6000x. -config MTD_NAND_NANDSIM - tristate "Support for NAND Flash Simulator" - help - The simulator may simulate various NAND flash chips for the - MTD nand layer. - -config MTD_NAND_GPMI_NAND - tristate "GPMI NAND Flash Controller driver" - depends on MXS_DMA - help - Enables NAND Flash support for IMX23, IMX28 or IMX6. - The GPMI controller is very powerful, with the help of BCH - module, it can do the hardware ECC. The GPMI supports several - NAND flashs at the same time. - config MTD_NAND_BRCMNAND tristate "Broadcom STB NAND controller" depends on ARM || ARM64 || MIPS || COMPILE_TEST @@ -344,7 +240,7 @@ config MTD_NAND_BRCMNAND BCM3xxx, BCM63xxx, iProc/Cygnus and more. config MTD_NAND_BCM47XXNFLASH - tristate "Support for NAND flash on BCM4706 BCMA bus" + tristate "BCM4706 BCMA NAND controller" depends on BCMA_NFLASH depends on BCMA help @@ -352,32 +248,31 @@ config MTD_NAND_BCM47XXNFLASH registered by bcma as platform devices. This enables driver for NAND flash memories. For now only BCM4706 is supported. -config MTD_NAND_PLATFORM - tristate "Support for generic platform NAND driver" +config MTD_NAND_OXNAS + tristate "Oxford Semiconductor NAND controller" + depends on ARCH_OXNAS || COMPILE_TEST depends on HAS_IOMEM help - This implements a generic NAND driver for on-SOC platform - devices. You will need to provide platform-specific functions - via platform_data. + This enables the NAND flash controller on Oxford Semiconductor SoCs. -config MTD_NAND_ORION - tristate "NAND Flash support for Marvell Orion SoC" - depends on PLAT_ORION +config MTD_NAND_MPC5121_NFC + tristate "MPC5121 NAND controller" + depends on PPC_MPC512x help - This enables the NAND flash controller on Orion machines. - - No board specific support is done by this driver, each board - must advertise a platform_device for the driver to attach. + This enables the driver for the NAND flash controller on the + MPC5121 SoC. -config MTD_NAND_OXNAS - tristate "NAND Flash support for Oxford Semiconductor SoC" - depends on ARCH_OXNAS || COMPILE_TEST - depends on HAS_IOMEM +config MTD_NAND_GPMI_NAND + tristate "Freescale GPMI NAND controller" + depends on MXS_DMA help - This enables the NAND flash controller on Oxford Semiconductor SoCs. + Enables NAND Flash support for IMX23, IMX28 or IMX6. + The GPMI controller is very powerful, with the help of BCH + module, it can do the hardware ECC. The GPMI supports several + NAND flashs at the same time. config MTD_NAND_FSL_ELBC - tristate "NAND support for Freescale eLBC controllers" + tristate "Freescale eLBC NAND controller" depends on FSL_SOC select FSL_LBC help @@ -387,7 +282,7 @@ config MTD_NAND_FSL_ELBC external NAND devices. config MTD_NAND_FSL_IFC - tristate "NAND support for Freescale IFC controller" + tristate "Freescale IFC NAND controller" depends on FSL_SOC || ARCH_LAYERSCAPE || SOC_LS1021A || COMPILE_TEST depends on HAS_IOMEM select FSL_IFC @@ -399,22 +294,15 @@ config MTD_NAND_FSL_IFC external NAND devices. config MTD_NAND_FSL_UPM - tristate "Support for NAND on Freescale UPM" + tristate "Freescale UPM NAND controller" depends on PPC_83xx || PPC_85xx select FSL_LBC help Enables support for NAND Flash chips wired onto Freescale PowerPC processor localbus with User-Programmable Machine support. -config MTD_NAND_MPC5121_NFC - tristate "MPC5121 built-in NAND Flash Controller support" - depends on PPC_MPC512x - help - This enables the driver for the NAND flash controller on the - MPC5121 SoC. - config MTD_NAND_VF610_NFC - tristate "Support for Freescale NFC for VF610/MPC5125" + tristate "Freescale VF610/MPC5125 NAND controller" depends on (SOC_VF610 || COMPILE_TEST) depends on HAS_IOMEM help @@ -426,7 +314,7 @@ config MTD_NAND_VF610_NFC device tree. config MTD_NAND_MXC - tristate "MXC NAND support" + tristate "Freescale MXC NAND controller" depends on ARCH_MXC || COMPILE_TEST depends on HAS_IOMEM help @@ -434,7 +322,7 @@ config MTD_NAND_MXC MXC processors. config MTD_NAND_SH_FLCTL - tristate "Support for NAND on Renesas SuperH FLCTL" + tristate "Renesas SuperH FLCTL NAND controller" depends on SUPERH || COMPILE_TEST depends on HAS_IOMEM help @@ -442,7 +330,7 @@ config MTD_NAND_SH_FLCTL for NAND Flash using FLCTL. config MTD_NAND_DAVINCI - tristate "Support NAND on DaVinci/Keystone SoC" + tristate "DaVinci/Keystone NAND controller" depends on ARCH_DAVINCI || (ARCH_KEYSTONE && TI_AEMIF) || COMPILE_TEST depends on HAS_IOMEM help @@ -450,42 +338,30 @@ config MTD_NAND_DAVINCI DaVinci/Keystone processors. config MTD_NAND_TXX9NDFMC - tristate "NAND Flash support for TXx9 SoC" + tristate "TXx9 NAND controller" depends on SOC_TX4938 || SOC_TX4939 || COMPILE_TEST depends on HAS_IOMEM help This enables the NAND flash controller on the TXx9 SoCs. config MTD_NAND_SOCRATES - tristate "Support for NAND on Socrates board" + tristate "Socrates NAND controller" depends on SOCRATES help Enables support for NAND Flash chips wired onto Socrates board. config MTD_NAND_NUC900 - tristate "Support for NAND on Nuvoton NUC9xx/w90p910 evaluation boards." + tristate "Nuvoton NUC9xx/w90p910 NAND controller" depends on ARCH_W90X900 || COMPILE_TEST depends on HAS_IOMEM help This enables the driver for the NAND Flash on evaluation board based on w90p910 / NUC9xx. -config MTD_NAND_JZ4740 - tristate "Support for JZ4740 SoC NAND controller" - depends on MACH_JZ4740 || COMPILE_TEST - depends on HAS_IOMEM - help - Enables support for NAND Flash on JZ4740 SoC based boards. - -config MTD_NAND_JZ4780 - tristate "Support for NAND on JZ4780 SoC" - depends on JZ4780_NEMC - help - Enables support for NAND Flash connected to the NEMC on JZ4780 SoC - based boards, using the BCH controller for hardware error correction. +source "drivers/mtd/nand/raw/ingenic/Kconfig" config MTD_NAND_FSMC - tristate "Support for NAND on ST Micros FSMC" + tristate "ST Micros FSMC NAND controller" depends on OF && HAS_IOMEM depends on PLAT_SPEAR || ARCH_NOMADIK || ARCH_U8500 || MACH_U300 || \ COMPILE_TEST @@ -494,28 +370,28 @@ config MTD_NAND_FSMC Flexible Static Memory Controller (FSMC) config MTD_NAND_XWAY - bool "Support for NAND on Lantiq XWAY SoC" + bool "Lantiq XWAY NAND controller" depends on LANTIQ && SOC_TYPE_XWAY help Enables support for NAND Flash chips on Lantiq XWAY SoCs. NAND is attached to the External Bus Unit (EBU). config MTD_NAND_SUNXI - tristate "Support for NAND on Allwinner SoCs" + tristate "Allwinner NAND controller" depends on ARCH_SUNXI || COMPILE_TEST depends on HAS_IOMEM help Enables support for NAND Flash chips on Allwinner SoCs. config MTD_NAND_HISI504 - tristate "Support for NAND controller on Hisilicon SoC Hip04" + tristate "Hisilicon Hip04 NAND controller" depends on ARCH_HISI || COMPILE_TEST depends on HAS_IOMEM help Enables support for NAND controller on Hisilicon SoC Hip04. config MTD_NAND_QCOM - tristate "Support for NAND on QCOM SoCs" + tristate "QCOM NAND controller" depends on ARCH_QCOM || COMPILE_TEST depends on HAS_IOMEM help @@ -523,7 +399,7 @@ config MTD_NAND_QCOM controller. This controller is found on IPQ806x SoC. config MTD_NAND_MTK - tristate "Support for NAND controller on MTK SoCs" + tristate "MTK NAND controller" depends on ARCH_MEDIATEK || COMPILE_TEST depends on HAS_IOMEM help @@ -531,7 +407,7 @@ config MTD_NAND_MTK This controller is found on mt27xx, mt81xx, mt65xx SoCs. config MTD_NAND_TEGRA - tristate "Support for NAND controller on NVIDIA Tegra" + tristate "NVIDIA Tegra NAND controller" depends on ARCH_TEGRA || COMPILE_TEST depends on HAS_IOMEM help @@ -558,4 +434,115 @@ config MTD_NAND_MESON Enables support for NAND controller on Amlogic's Meson SoCs. This controller is found on Meson SoCs. -endif # MTD_NAND +config MTD_NAND_GPIO + tristate "GPIO assisted NAND controller" + depends on GPIOLIB || COMPILE_TEST + depends on HAS_IOMEM + help + This enables a NAND flash driver where control signals are + connected to GPIO pins, and commands and data are communicated + via a memory mapped interface. + +config MTD_NAND_PLATFORM + tristate "Generic NAND controller" + depends on HAS_IOMEM + help + This implements a generic NAND driver for on-SOC platform + devices. You will need to provide platform-specific functions + via platform_data. + +comment "Misc" + +config MTD_SM_COMMON + tristate + default n + +config MTD_NAND_NANDSIM + tristate "Support for NAND Flash Simulator" + help + The simulator may simulate various NAND flash chips for the + MTD nand layer. + +config MTD_NAND_RICOH + tristate "Ricoh xD card reader" + default n + depends on PCI + select MTD_SM_COMMON + help + Enable support for Ricoh R5C852 xD card reader + You also need to enable ether + NAND SSFDC (SmartMedia) read only translation layer' or new + expermental, readwrite + 'SmartMedia/xD new translation layer' + +config MTD_NAND_DISKONCHIP + tristate "DiskOnChip 2000, Millennium and Millennium Plus (NAND reimplementation)" + depends on HAS_IOMEM + select REED_SOLOMON + select REED_SOLOMON_DEC16 + help + This is a reimplementation of M-Systems DiskOnChip 2000, + Millennium and Millennium Plus as a standard NAND device driver, + as opposed to the earlier self-contained MTD device drivers. + This should enable, among other things, proper JFFS2 operation on + these devices. + +config MTD_NAND_DISKONCHIP_PROBE_ADVANCED + bool "Advanced detection options for DiskOnChip" + depends on MTD_NAND_DISKONCHIP + help + This option allows you to specify nonstandard address at which to + probe for a DiskOnChip, or to change the detection options. You + are unlikely to need any of this unless you are using LinuxBIOS. + Say 'N'. + +config MTD_NAND_DISKONCHIP_PROBE_ADDRESS + hex "Physical address of DiskOnChip" if MTD_NAND_DISKONCHIP_PROBE_ADVANCED + depends on MTD_NAND_DISKONCHIP + default "0" + help + By default, the probe for DiskOnChip devices will look for a + DiskOnChip at every multiple of 0x2000 between 0xC8000 and 0xEE000. + This option allows you to specify a single address at which to probe + for the device, which is useful if you have other devices in that + range which get upset when they are probed. + + (Note that on PowerPC, the normal probe will only check at + 0xE4000000.) + + Normally, you should leave this set to zero, to allow the probe at + the normal addresses. + +config MTD_NAND_DISKONCHIP_PROBE_HIGH + bool "Probe high addresses" + depends on MTD_NAND_DISKONCHIP_PROBE_ADVANCED + help + By default, the probe for DiskOnChip devices will look for a + DiskOnChip at every multiple of 0x2000 between 0xC8000 and 0xEE000. + This option changes to make it probe between 0xFFFC8000 and + 0xFFFEE000. Unless you are using LinuxBIOS, this is unlikely to be + useful to you. Say 'N'. + +config MTD_NAND_DISKONCHIP_BBTWRITE + bool "Allow BBT writes on DiskOnChip Millennium and 2000TSOP" + depends on MTD_NAND_DISKONCHIP + help + On DiskOnChip devices shipped with the INFTL filesystem (Millennium + and 2000 TSOP/Alon), Linux reserves some space at the end of the + device for the Bad Block Table (BBT). If you have existing INFTL + data on your device (created by non-Linux tools such as M-Systems' + DOS drivers), your data might overlap the area Linux wants to use for + the BBT. If this is a concern for you, leave this option disabled and + Linux will not write BBT data into this area. + The downside of leaving this option disabled is that if bad blocks + are detected by Linux, they will not be recorded in the BBT, which + could cause future problems. + Once you enable this option, new filesystems (INFTL or others, created + in Linux or other operating systems) will not use the reserved area. + The only reason not to enable this option is to prevent damage to + preexisting filesystems. + Even if you leave this disabled, you can enable BBT writes at module + load time (assuming you build diskonchip as a module) with the module + parameter "inftl_bbt_write=1". + +endif # MTD_RAW_NAND diff --git a/drivers/mtd/nand/raw/Makefile b/drivers/mtd/nand/raw/Makefile index 5a5a72f0793e..efaf5cd25edc 100644 --- a/drivers/mtd/nand/raw/Makefile +++ b/drivers/mtd/nand/raw/Makefile @@ -1,8 +1,8 @@ # SPDX-License-Identifier: GPL-2.0 -obj-$(CONFIG_MTD_NAND) += nand.o -obj-$(CONFIG_MTD_NAND_ECC) += nand_ecc.o -obj-$(CONFIG_MTD_NAND_BCH) += nand_bch.o +obj-$(CONFIG_MTD_RAW_NAND) += nand.o +obj-$(CONFIG_MTD_NAND_ECC_SW_HAMMING) += nand_ecc.o +nand-$(CONFIG_MTD_NAND_ECC_SW_BCH) += nand_bch.o obj-$(CONFIG_MTD_SM_COMMON) += sm_common.o obj-$(CONFIG_MTD_NAND_CAFE) += cafe_nand.o @@ -45,8 +45,7 @@ obj-$(CONFIG_MTD_NAND_NUC900) += nuc900_nand.o obj-$(CONFIG_MTD_NAND_MPC5121_NFC) += mpc5121_nfc.o obj-$(CONFIG_MTD_NAND_VF610_NFC) += vf610_nfc.o obj-$(CONFIG_MTD_NAND_RICOH) += r852.o -obj-$(CONFIG_MTD_NAND_JZ4740) += jz4740_nand.o -obj-$(CONFIG_MTD_NAND_JZ4780) += jz4780_nand.o jz4780_bch.o +obj-y += ingenic/ obj-$(CONFIG_MTD_NAND_GPMI_NAND) += gpmi-nand/ obj-$(CONFIG_MTD_NAND_XWAY) += xway_nand.o obj-$(CONFIG_MTD_NAND_BCM47XXNFLASH) += bcm47xxnflash/ diff --git a/drivers/mtd/nand/raw/atmel/nand-controller.c b/drivers/mtd/nand/raw/atmel/nand-controller.c index 5781fcf6b76c..8d6be90a6fe8 100644 --- a/drivers/mtd/nand/raw/atmel/nand-controller.c +++ b/drivers/mtd/nand/raw/atmel/nand-controller.c @@ -1,3 +1,4 @@ +// SPDX-License-Identifier: GPL-2.0 /* * Copyright 2017 ATMEL * Copyright 2017 Free Electrons @@ -29,10 +30,6 @@ * Add Nand Flash Controller support for SAMA5 SoC * Copyright 2013 ATMEL, Josh Wu (josh.wu@atmel.com) * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. - * * A few words about the naming convention in this file. This convention * applies to structure and function names. * @@ -65,6 +62,7 @@ #include <linux/iopoll.h> #include <linux/platform_device.h> #include <linux/regmap.h> +#include <soc/at91/atmel-sfr.h> #include "pmecc.h" @@ -211,6 +209,7 @@ struct atmel_nand_controller_caps { bool legacy_of_bindings; u32 ale_offs; u32 cle_offs; + const char *ebi_csa_regmap_name; const struct atmel_nand_controller_ops *ops; }; @@ -231,10 +230,15 @@ to_nand_controller(struct nand_controller *ctl) return container_of(ctl, struct atmel_nand_controller, base); } +struct atmel_smc_nand_ebi_csa_cfg { + u32 offs; + u32 nfd0_on_d16; +}; + struct atmel_smc_nand_controller { struct atmel_nand_controller base; - struct regmap *matrix; - unsigned int ebi_csa_offs; + struct regmap *ebi_csa_regmap; + struct atmel_smc_nand_ebi_csa_cfg *ebi_csa; }; static inline struct atmel_smc_nand_controller * @@ -1068,15 +1072,15 @@ static int atmel_nand_pmecc_init(struct nand_chip *chip) req.ecc.strength = ATMEL_PMECC_MAXIMIZE_ECC_STRENGTH; else if (chip->ecc.strength) req.ecc.strength = chip->ecc.strength; - else if (chip->ecc_strength_ds) - req.ecc.strength = chip->ecc_strength_ds; + else if (chip->base.eccreq.strength) + req.ecc.strength = chip->base.eccreq.strength; else req.ecc.strength = ATMEL_PMECC_MAXIMIZE_ECC_STRENGTH; if (chip->ecc.size) req.ecc.sectorsize = chip->ecc.size; - else if (chip->ecc_step_ds) - req.ecc.sectorsize = chip->ecc_step_ds; + else if (chip->base.eccreq.step_size) + req.ecc.sectorsize = chip->base.eccreq.step_size; else req.ecc.sectorsize = ATMEL_PMECC_SECTOR_SIZE_AUTO; @@ -1507,13 +1511,20 @@ static void atmel_smc_nand_init(struct atmel_nand_controller *nc, atmel_nand_init(nc, nand); smc_nc = to_smc_nand_controller(chip->controller); - if (!smc_nc->matrix) + if (!smc_nc->ebi_csa_regmap) return; /* Attach the CS to the NAND Flash logic. */ for (i = 0; i < nand->numcs; i++) - regmap_update_bits(smc_nc->matrix, smc_nc->ebi_csa_offs, + regmap_update_bits(smc_nc->ebi_csa_regmap, + smc_nc->ebi_csa->offs, BIT(nand->cs[i].id), BIT(nand->cs[i].id)); + + if (smc_nc->ebi_csa->nfd0_on_d16) + regmap_update_bits(smc_nc->ebi_csa_regmap, + smc_nc->ebi_csa->offs, + smc_nc->ebi_csa->nfd0_on_d16, + smc_nc->ebi_csa->nfd0_on_d16); } static void atmel_hsmc_nand_init(struct atmel_nand_controller *nc, @@ -1797,7 +1808,7 @@ static int atmel_nand_controller_add_nands(struct atmel_nand_controller *nc) ret = of_property_read_u32(np, "#size-cells", &val); if (ret) { - dev_err(dev, "missing #address-cells property\n"); + dev_err(dev, "missing #size-cells property\n"); return ret; } @@ -1833,34 +1844,71 @@ static void atmel_nand_controller_cleanup(struct atmel_nand_controller *nc) clk_put(nc->mck); } -static const struct of_device_id atmel_matrix_of_ids[] = { +static const struct atmel_smc_nand_ebi_csa_cfg at91sam9260_ebi_csa = { + .offs = AT91SAM9260_MATRIX_EBICSA, +}; + +static const struct atmel_smc_nand_ebi_csa_cfg at91sam9261_ebi_csa = { + .offs = AT91SAM9261_MATRIX_EBICSA, +}; + +static const struct atmel_smc_nand_ebi_csa_cfg at91sam9263_ebi_csa = { + .offs = AT91SAM9263_MATRIX_EBI0CSA, +}; + +static const struct atmel_smc_nand_ebi_csa_cfg at91sam9rl_ebi_csa = { + .offs = AT91SAM9RL_MATRIX_EBICSA, +}; + +static const struct atmel_smc_nand_ebi_csa_cfg at91sam9g45_ebi_csa = { + .offs = AT91SAM9G45_MATRIX_EBICSA, +}; + +static const struct atmel_smc_nand_ebi_csa_cfg at91sam9n12_ebi_csa = { + .offs = AT91SAM9N12_MATRIX_EBICSA, +}; + +static const struct atmel_smc_nand_ebi_csa_cfg at91sam9x5_ebi_csa = { + .offs = AT91SAM9X5_MATRIX_EBICSA, +}; + +static const struct atmel_smc_nand_ebi_csa_cfg sam9x60_ebi_csa = { + .offs = AT91_SFR_CCFG_EBICSA, + .nfd0_on_d16 = AT91_SFR_CCFG_NFD0_ON_D16, +}; + +static const struct of_device_id atmel_ebi_csa_regmap_of_ids[] = { { .compatible = "atmel,at91sam9260-matrix", - .data = (void *)AT91SAM9260_MATRIX_EBICSA, + .data = &at91sam9260_ebi_csa, }, { .compatible = "atmel,at91sam9261-matrix", - .data = (void *)AT91SAM9261_MATRIX_EBICSA, + .data = &at91sam9261_ebi_csa, }, { .compatible = "atmel,at91sam9263-matrix", - .data = (void *)AT91SAM9263_MATRIX_EBI0CSA, + .data = &at91sam9263_ebi_csa, }, { .compatible = "atmel,at91sam9rl-matrix", - .data = (void *)AT91SAM9RL_MATRIX_EBICSA, + .data = &at91sam9rl_ebi_csa, }, { .compatible = "atmel,at91sam9g45-matrix", - .data = (void *)AT91SAM9G45_MATRIX_EBICSA, + .data = &at91sam9g45_ebi_csa, }, { .compatible = "atmel,at91sam9n12-matrix", - .data = (void *)AT91SAM9N12_MATRIX_EBICSA, + .data = &at91sam9n12_ebi_csa, }, { .compatible = "atmel,at91sam9x5-matrix", - .data = (void *)AT91SAM9X5_MATRIX_EBICSA, + .data = &at91sam9x5_ebi_csa, + }, + { + .compatible = "microchip,sam9x60-sfr", + .data = &sam9x60_ebi_csa, }, { /* sentinel */ }, }; @@ -1982,37 +2030,38 @@ atmel_smc_nand_controller_init(struct atmel_smc_nand_controller *nc) struct device_node *np; int ret; - /* We do not retrieve the matrix syscon when parsing old DTs. */ + /* We do not retrieve the EBICSA regmap when parsing old DTs. */ if (nc->base.caps->legacy_of_bindings) return 0; - np = of_parse_phandle(dev->parent->of_node, "atmel,matrix", 0); + np = of_parse_phandle(dev->parent->of_node, + nc->base.caps->ebi_csa_regmap_name, 0); if (!np) return 0; - match = of_match_node(atmel_matrix_of_ids, np); + match = of_match_node(atmel_ebi_csa_regmap_of_ids, np); if (!match) { of_node_put(np); return 0; } - nc->matrix = syscon_node_to_regmap(np); + nc->ebi_csa_regmap = syscon_node_to_regmap(np); of_node_put(np); - if (IS_ERR(nc->matrix)) { - ret = PTR_ERR(nc->matrix); - dev_err(dev, "Could not get Matrix regmap (err = %d)\n", ret); + if (IS_ERR(nc->ebi_csa_regmap)) { + ret = PTR_ERR(nc->ebi_csa_regmap); + dev_err(dev, "Could not get EBICSA regmap (err = %d)\n", ret); return ret; } - nc->ebi_csa_offs = (uintptr_t)match->data; + nc->ebi_csa = (struct atmel_smc_nand_ebi_csa_cfg *)match->data; /* * The at91sam9263 has 2 EBIs, if the NAND controller is under EBI1 - * add 4 to ->ebi_csa_offs. + * add 4 to ->ebi_csa->offs. */ if (of_device_is_compatible(dev->parent->of_node, "atmel,at91sam9263-ebi1")) - nc->ebi_csa_offs += 4; + nc->ebi_csa->offs += 4; return 0; } @@ -2341,6 +2390,7 @@ static const struct atmel_nand_controller_ops at91rm9200_nc_ops = { static const struct atmel_nand_controller_caps atmel_rm9200_nc_caps = { .ale_offs = BIT(21), .cle_offs = BIT(22), + .ebi_csa_regmap_name = "atmel,matrix", .ops = &at91rm9200_nc_ops, }; @@ -2355,12 +2405,14 @@ static const struct atmel_nand_controller_ops atmel_smc_nc_ops = { static const struct atmel_nand_controller_caps atmel_sam9260_nc_caps = { .ale_offs = BIT(21), .cle_offs = BIT(22), + .ebi_csa_regmap_name = "atmel,matrix", .ops = &atmel_smc_nc_ops, }; static const struct atmel_nand_controller_caps atmel_sam9261_nc_caps = { .ale_offs = BIT(22), .cle_offs = BIT(21), + .ebi_csa_regmap_name = "atmel,matrix", .ops = &atmel_smc_nc_ops, }; @@ -2368,6 +2420,15 @@ static const struct atmel_nand_controller_caps atmel_sam9g45_nc_caps = { .has_dma = true, .ale_offs = BIT(21), .cle_offs = BIT(22), + .ebi_csa_regmap_name = "atmel,matrix", + .ops = &atmel_smc_nc_ops, +}; + +static const struct atmel_nand_controller_caps microchip_sam9x60_nc_caps = { + .has_dma = true, + .ale_offs = BIT(21), + .cle_offs = BIT(22), + .ebi_csa_regmap_name = "microchip,sfr", .ops = &atmel_smc_nc_ops, }; @@ -2415,6 +2476,10 @@ static const struct of_device_id atmel_nand_controller_of_ids[] = { .compatible = "atmel,sama5d3-nand-controller", .data = &atmel_sama5_nc_caps, }, + { + .compatible = "microchip,sam9x60-nand-controller", + .data = µchip_sam9x60_nc_caps, + }, /* Support for old/deprecated bindings: */ { .compatible = "atmel,at91rm9200-nand", diff --git a/drivers/mtd/nand/raw/atmel/pmecc.c b/drivers/mtd/nand/raw/atmel/pmecc.c index 9d3997840889..cbb023bf00f7 100644 --- a/drivers/mtd/nand/raw/atmel/pmecc.c +++ b/drivers/mtd/nand/raw/atmel/pmecc.c @@ -1,3 +1,4 @@ +// SPDX-License-Identifier: GPL-2.0 /* * Copyright 2017 ATMEL * Copyright 2017 Free Electrons @@ -28,10 +29,6 @@ * Add Nand Flash Controller support for SAMA5 SoC * Copyright 2013 ATMEL, Josh Wu (josh.wu@atmel.com) * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. - * * The PMECC is an hardware assisted BCH engine, which means part of the * ECC algorithm is left to the software. The hardware/software repartition * is explained in the "PMECC Controller Functional Description" chapter in diff --git a/drivers/mtd/nand/raw/atmel/pmecc.h b/drivers/mtd/nand/raw/atmel/pmecc.h index 808f1be0d6ad..7851c05126cf 100644 --- a/drivers/mtd/nand/raw/atmel/pmecc.h +++ b/drivers/mtd/nand/raw/atmel/pmecc.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0 */ /* * © Copyright 2016 ATMEL * © Copyright 2016 Free Electrons @@ -28,11 +29,6 @@ * * Add Nand Flash Controller support for SAMA5 SoC * © Copyright 2013 ATMEL, Josh Wu (josh.wu@atmel.com) - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. - * */ #ifndef ATMEL_PMECC_H diff --git a/drivers/mtd/nand/raw/bcm47xxnflash/ops_bcm4706.c b/drivers/mtd/nand/raw/bcm47xxnflash/ops_bcm4706.c index a37cbfe56567..a53ffb3d64b0 100644 --- a/drivers/mtd/nand/raw/bcm47xxnflash/ops_bcm4706.c +++ b/drivers/mtd/nand/raw/bcm47xxnflash/ops_bcm4706.c @@ -428,7 +428,7 @@ int bcm47xxnflash_ops_bcm4706_init(struct bcm47xxnflash *b47n) } /* Configure FLASH */ - chipsize = b47n->nand_chip.chipsize >> 20; + chipsize = nanddev_target_size(&b47n->nand_chip.base) >> 20; tbits = ffs(chipsize); /* find first bit set */ if (!tbits || tbits != fls(chipsize)) { pr_err("Invalid flash size: 0x%lX\n", chipsize); diff --git a/drivers/mtd/nand/raw/brcmnand/brcmnand.c b/drivers/mtd/nand/raw/brcmnand/brcmnand.c index 482c6f093f99..ce0b8ffc7812 100644 --- a/drivers/mtd/nand/raw/brcmnand/brcmnand.c +++ b/drivers/mtd/nand/raw/brcmnand/brcmnand.c @@ -1676,11 +1676,8 @@ static int brcmstb_nand_verify_erased_page(struct mtd_info *mtd, int page = addr >> chip->page_shift; int ret; - if (!buf) { - buf = chip->data_buf; - /* Invalidate page cache */ - chip->pagebuf = -1; - } + if (!buf) + buf = nand_get_data_buf(chip); sas = mtd->oobsize / chip->ecc.steps; diff --git a/drivers/mtd/nand/raw/denali.c b/drivers/mtd/nand/raw/denali.c index 24aeafc67cd4..3102ddbd8abd 100644 --- a/drivers/mtd/nand/raw/denali.c +++ b/drivers/mtd/nand/raw/denali.c @@ -3,7 +3,7 @@ * NAND Flash Controller Device Driver * Copyright © 2009-2010, Intel Corporation and its suppliers. * - * Copyright (c) 2017 Socionext Inc. + * Copyright (c) 2017-2019 Socionext Inc. * Reworked by Masahiro Yamada <yamada.masahiro@socionext.com> */ @@ -40,11 +40,16 @@ #define DENALI_BANK(denali) ((denali)->active_bank << 24) #define DENALI_INVALID_BANK -1 -#define DENALI_NR_BANKS 4 -static inline struct denali_nand_info *mtd_to_denali(struct mtd_info *mtd) +static struct denali_chip *to_denali_chip(struct nand_chip *chip) { - return container_of(mtd_to_nand(mtd), struct denali_nand_info, nand); + return container_of(chip, struct denali_chip, chip); +} + +static struct denali_controller *to_denali_controller(struct nand_chip *chip) +{ + return container_of(chip->controller, struct denali_controller, + controller); } /* @@ -52,12 +57,12 @@ static inline struct denali_nand_info *mtd_to_denali(struct mtd_info *mtd) * type, bank, block, and page address). The slave data is the actual data to * be transferred. This mode requires 28 bits of address region allocated. */ -static u32 denali_direct_read(struct denali_nand_info *denali, u32 addr) +static u32 denali_direct_read(struct denali_controller *denali, u32 addr) { return ioread32(denali->host + addr); } -static void denali_direct_write(struct denali_nand_info *denali, u32 addr, +static void denali_direct_write(struct denali_controller *denali, u32 addr, u32 data) { iowrite32(data, denali->host + addr); @@ -69,77 +74,62 @@ static void denali_direct_write(struct denali_nand_info *denali, u32 addr, * control information and transferred data are latched by the registers in * the translation module. */ -static u32 denali_indexed_read(struct denali_nand_info *denali, u32 addr) +static u32 denali_indexed_read(struct denali_controller *denali, u32 addr) { iowrite32(addr, denali->host + DENALI_INDEXED_CTRL); return ioread32(denali->host + DENALI_INDEXED_DATA); } -static void denali_indexed_write(struct denali_nand_info *denali, u32 addr, +static void denali_indexed_write(struct denali_controller *denali, u32 addr, u32 data) { iowrite32(addr, denali->host + DENALI_INDEXED_CTRL); iowrite32(data, denali->host + DENALI_INDEXED_DATA); } -/* - * Use the configuration feature register to determine the maximum number of - * banks that the hardware supports. - */ -static void denali_detect_max_banks(struct denali_nand_info *denali) -{ - uint32_t features = ioread32(denali->reg + FEATURES); - - denali->max_banks = 1 << FIELD_GET(FEATURES__N_BANKS, features); - - /* the encoding changed from rev 5.0 to 5.1 */ - if (denali->revision < 0x0501) - denali->max_banks <<= 1; -} - -static void denali_enable_irq(struct denali_nand_info *denali) +static void denali_enable_irq(struct denali_controller *denali) { int i; - for (i = 0; i < DENALI_NR_BANKS; i++) + for (i = 0; i < denali->nbanks; i++) iowrite32(U32_MAX, denali->reg + INTR_EN(i)); iowrite32(GLOBAL_INT_EN_FLAG, denali->reg + GLOBAL_INT_ENABLE); } -static void denali_disable_irq(struct denali_nand_info *denali) +static void denali_disable_irq(struct denali_controller *denali) { int i; - for (i = 0; i < DENALI_NR_BANKS; i++) + for (i = 0; i < denali->nbanks; i++) iowrite32(0, denali->reg + INTR_EN(i)); iowrite32(0, denali->reg + GLOBAL_INT_ENABLE); } -static void denali_clear_irq(struct denali_nand_info *denali, - int bank, uint32_t irq_status) +static void denali_clear_irq(struct denali_controller *denali, + int bank, u32 irq_status) { /* write one to clear bits */ iowrite32(irq_status, denali->reg + INTR_STATUS(bank)); } -static void denali_clear_irq_all(struct denali_nand_info *denali) +static void denali_clear_irq_all(struct denali_controller *denali) { int i; - for (i = 0; i < DENALI_NR_BANKS; i++) + for (i = 0; i < denali->nbanks; i++) denali_clear_irq(denali, i, U32_MAX); } static irqreturn_t denali_isr(int irq, void *dev_id) { - struct denali_nand_info *denali = dev_id; + struct denali_controller *denali = dev_id; irqreturn_t ret = IRQ_NONE; - uint32_t irq_status; + u32 irq_status; int i; spin_lock(&denali->irq_lock); - for (i = 0; i < DENALI_NR_BANKS; i++) { + for (i = 0; i < denali->nbanks; i++) { irq_status = ioread32(denali->reg + INTR_STATUS(i)); if (irq_status) ret = IRQ_HANDLED; @@ -160,7 +150,7 @@ static irqreturn_t denali_isr(int irq, void *dev_id) return ret; } -static void denali_reset_irq(struct denali_nand_info *denali) +static void denali_reset_irq(struct denali_controller *denali) { unsigned long flags; @@ -170,11 +160,10 @@ static void denali_reset_irq(struct denali_nand_info *denali) spin_unlock_irqrestore(&denali->irq_lock, flags); } -static uint32_t denali_wait_for_irq(struct denali_nand_info *denali, - uint32_t irq_mask) +static u32 denali_wait_for_irq(struct denali_controller *denali, u32 irq_mask) { unsigned long time_left, flags; - uint32_t irq_status; + u32 irq_status; spin_lock_irqsave(&denali->irq_lock, flags); @@ -201,128 +190,259 @@ static uint32_t denali_wait_for_irq(struct denali_nand_info *denali, return denali->irq_status; } -static void denali_read_buf(struct nand_chip *chip, uint8_t *buf, int len) +static void denali_select_target(struct nand_chip *chip, int cs) { + struct denali_controller *denali = to_denali_controller(chip); + struct denali_chip_sel *sel = &to_denali_chip(chip)->sels[cs]; struct mtd_info *mtd = nand_to_mtd(chip); - struct denali_nand_info *denali = mtd_to_denali(mtd); - u32 addr = DENALI_MAP11_DATA | DENALI_BANK(denali); - int i; - for (i = 0; i < len; i++) - buf[i] = denali->host_read(denali, addr); + denali->active_bank = sel->bank; + + iowrite32(1 << (chip->phys_erase_shift - chip->page_shift), + denali->reg + PAGES_PER_BLOCK); + iowrite32(chip->options & NAND_BUSWIDTH_16 ? 1 : 0, + denali->reg + DEVICE_WIDTH); + iowrite32(mtd->writesize, denali->reg + DEVICE_MAIN_AREA_SIZE); + iowrite32(mtd->oobsize, denali->reg + DEVICE_SPARE_AREA_SIZE); + iowrite32(chip->options & NAND_ROW_ADDR_3 ? + 0 : TWO_ROW_ADDR_CYCLES__FLAG, + denali->reg + TWO_ROW_ADDR_CYCLES); + iowrite32(FIELD_PREP(ECC_CORRECTION__ERASE_THRESHOLD, 1) | + FIELD_PREP(ECC_CORRECTION__VALUE, chip->ecc.strength), + denali->reg + ECC_CORRECTION); + iowrite32(chip->ecc.size, denali->reg + CFG_DATA_BLOCK_SIZE); + iowrite32(chip->ecc.size, denali->reg + CFG_LAST_DATA_BLOCK_SIZE); + iowrite32(chip->ecc.steps, denali->reg + CFG_NUM_DATA_BLOCKS); + + if (chip->options & NAND_KEEP_TIMINGS) + return; + + /* update timing registers unless NAND_KEEP_TIMINGS is set */ + iowrite32(sel->hwhr2_and_we_2_re, denali->reg + TWHR2_AND_WE_2_RE); + iowrite32(sel->tcwaw_and_addr_2_data, + denali->reg + TCWAW_AND_ADDR_2_DATA); + iowrite32(sel->re_2_we, denali->reg + RE_2_WE); + iowrite32(sel->acc_clks, denali->reg + ACC_CLKS); + iowrite32(sel->rdwr_en_lo_cnt, denali->reg + RDWR_EN_LO_CNT); + iowrite32(sel->rdwr_en_hi_cnt, denali->reg + RDWR_EN_HI_CNT); + iowrite32(sel->cs_setup_cnt, denali->reg + CS_SETUP_CNT); + iowrite32(sel->re_2_re, denali->reg + RE_2_RE); } -static void denali_write_buf(struct nand_chip *chip, const uint8_t *buf, - int len) +static int denali_change_column(struct nand_chip *chip, unsigned int offset, + void *buf, unsigned int len, bool write) { - struct denali_nand_info *denali = mtd_to_denali(nand_to_mtd(chip)); - u32 addr = DENALI_MAP11_DATA | DENALI_BANK(denali); - int i; - - for (i = 0; i < len; i++) - denali->host_write(denali, addr, buf[i]); + if (write) + return nand_change_write_column_op(chip, offset, buf, len, + false); + else + return nand_change_read_column_op(chip, offset, buf, len, + false); } -static void denali_read_buf16(struct nand_chip *chip, uint8_t *buf, int len) +static int denali_payload_xfer(struct nand_chip *chip, void *buf, bool write) { - struct denali_nand_info *denali = mtd_to_denali(nand_to_mtd(chip)); - u32 addr = DENALI_MAP11_DATA | DENALI_BANK(denali); - uint16_t *buf16 = (uint16_t *)buf; - int i; + struct denali_controller *denali = to_denali_controller(chip); + struct mtd_info *mtd = nand_to_mtd(chip); + struct nand_ecc_ctrl *ecc = &chip->ecc; + int writesize = mtd->writesize; + int oob_skip = denali->oob_skip_bytes; + int ret, i, pos, len; + + for (i = 0; i < ecc->steps; i++) { + pos = i * (ecc->size + ecc->bytes); + len = ecc->size; + + if (pos >= writesize) { + pos += oob_skip; + } else if (pos + len > writesize) { + /* This chunk overwraps the BBM area. Must be split */ + ret = denali_change_column(chip, pos, buf, + writesize - pos, write); + if (ret) + return ret; + + buf += writesize - pos; + len -= writesize - pos; + pos = writesize + oob_skip; + } + + ret = denali_change_column(chip, pos, buf, len, write); + if (ret) + return ret; - for (i = 0; i < len / 2; i++) - buf16[i] = denali->host_read(denali, addr); + buf += len; + } + + return 0; } -static void denali_write_buf16(struct nand_chip *chip, const uint8_t *buf, - int len) +static int denali_oob_xfer(struct nand_chip *chip, void *buf, bool write) { - struct denali_nand_info *denali = mtd_to_denali(nand_to_mtd(chip)); - u32 addr = DENALI_MAP11_DATA | DENALI_BANK(denali); - const uint16_t *buf16 = (const uint16_t *)buf; - int i; + struct denali_controller *denali = to_denali_controller(chip); + struct mtd_info *mtd = nand_to_mtd(chip); + struct nand_ecc_ctrl *ecc = &chip->ecc; + int writesize = mtd->writesize; + int oobsize = mtd->oobsize; + int oob_skip = denali->oob_skip_bytes; + int ret, i, pos, len; - for (i = 0; i < len / 2; i++) - denali->host_write(denali, addr, buf16[i]); + /* BBM at the beginning of the OOB area */ + ret = denali_change_column(chip, writesize, buf, oob_skip, write); + if (ret) + return ret; + + buf += oob_skip; + + for (i = 0; i < ecc->steps; i++) { + pos = ecc->size + i * (ecc->size + ecc->bytes); + + if (i == ecc->steps - 1) + /* The last chunk includes OOB free */ + len = writesize + oobsize - pos - oob_skip; + else + len = ecc->bytes; + + if (pos >= writesize) { + pos += oob_skip; + } else if (pos + len > writesize) { + /* This chunk overwraps the BBM area. Must be split */ + ret = denali_change_column(chip, pos, buf, + writesize - pos, write); + if (ret) + return ret; + + buf += writesize - pos; + len -= writesize - pos; + pos = writesize + oob_skip; + } + + ret = denali_change_column(chip, pos, buf, len, write); + if (ret) + return ret; + + buf += len; + } + + return 0; } -static uint8_t denali_read_byte(struct nand_chip *chip) +static int denali_read_raw(struct nand_chip *chip, void *buf, void *oob_buf, + int page) { - uint8_t byte; + int ret; + + if (!buf && !oob_buf) + return -EINVAL; - denali_read_buf(chip, &byte, 1); + ret = nand_read_page_op(chip, page, 0, NULL, 0); + if (ret) + return ret; - return byte; + if (buf) { + ret = denali_payload_xfer(chip, buf, false); + if (ret) + return ret; + } + + if (oob_buf) { + ret = denali_oob_xfer(chip, oob_buf, false); + if (ret) + return ret; + } + + return 0; } -static void denali_write_byte(struct nand_chip *chip, uint8_t byte) +static int denali_write_raw(struct nand_chip *chip, const void *buf, + const void *oob_buf, int page) { - denali_write_buf(chip, &byte, 1); + int ret; + + if (!buf && !oob_buf) + return -EINVAL; + + ret = nand_prog_page_begin_op(chip, page, 0, NULL, 0); + if (ret) + return ret; + + if (buf) { + ret = denali_payload_xfer(chip, (void *)buf, true); + if (ret) + return ret; + } + + if (oob_buf) { + ret = denali_oob_xfer(chip, (void *)oob_buf, true); + if (ret) + return ret; + } + + return nand_prog_page_end_op(chip); } -static void denali_cmd_ctrl(struct nand_chip *chip, int dat, unsigned int ctrl) +static int denali_read_page_raw(struct nand_chip *chip, u8 *buf, + int oob_required, int page) { - struct denali_nand_info *denali = mtd_to_denali(nand_to_mtd(chip)); - uint32_t type; + return denali_read_raw(chip, buf, oob_required ? chip->oob_poi : NULL, + page); +} - if (ctrl & NAND_CLE) - type = DENALI_MAP11_CMD; - else if (ctrl & NAND_ALE) - type = DENALI_MAP11_ADDR; - else - return; +static int denali_write_page_raw(struct nand_chip *chip, const u8 *buf, + int oob_required, int page) +{ + return denali_write_raw(chip, buf, oob_required ? chip->oob_poi : NULL, + page); +} - /* - * Some commands are followed by chip->legacy.waitfunc. - * irq_status must be cleared here to catch the R/B# interrupt later. - */ - if (ctrl & NAND_CTRL_CHANGE) - denali_reset_irq(denali); +static int denali_read_oob(struct nand_chip *chip, int page) +{ + return denali_read_raw(chip, NULL, chip->oob_poi, page); +} - denali->host_write(denali, DENALI_BANK(denali) | type, dat); +static int denali_write_oob(struct nand_chip *chip, int page) +{ + return denali_write_raw(chip, NULL, chip->oob_poi, page); } -static int denali_check_erased_page(struct mtd_info *mtd, - struct nand_chip *chip, uint8_t *buf, +static int denali_check_erased_page(struct nand_chip *chip, u8 *buf, unsigned long uncor_ecc_flags, unsigned int max_bitflips) { - struct denali_nand_info *denali = mtd_to_denali(mtd); - uint8_t *ecc_code = chip->oob_poi + denali->oob_skip_bytes; - int ecc_steps = chip->ecc.steps; - int ecc_size = chip->ecc.size; - int ecc_bytes = chip->ecc.bytes; + struct denali_controller *denali = to_denali_controller(chip); + struct mtd_ecc_stats *ecc_stats = &nand_to_mtd(chip)->ecc_stats; + struct nand_ecc_ctrl *ecc = &chip->ecc; + u8 *ecc_code = chip->oob_poi + denali->oob_skip_bytes; int i, stat; - for (i = 0; i < ecc_steps; i++) { + for (i = 0; i < ecc->steps; i++) { if (!(uncor_ecc_flags & BIT(i))) continue; - stat = nand_check_erased_ecc_chunk(buf, ecc_size, - ecc_code, ecc_bytes, - NULL, 0, - chip->ecc.strength); + stat = nand_check_erased_ecc_chunk(buf, ecc->size, ecc_code, + ecc->bytes, NULL, 0, + ecc->strength); if (stat < 0) { - mtd->ecc_stats.failed++; + ecc_stats->failed++; } else { - mtd->ecc_stats.corrected += stat; + ecc_stats->corrected += stat; max_bitflips = max_t(unsigned int, max_bitflips, stat); } - buf += ecc_size; - ecc_code += ecc_bytes; + buf += ecc->size; + ecc_code += ecc->bytes; } return max_bitflips; } -static int denali_hw_ecc_fixup(struct mtd_info *mtd, - struct denali_nand_info *denali, +static int denali_hw_ecc_fixup(struct nand_chip *chip, unsigned long *uncor_ecc_flags) { - struct nand_chip *chip = mtd_to_nand(mtd); + struct denali_controller *denali = to_denali_controller(chip); + struct mtd_ecc_stats *ecc_stats = &nand_to_mtd(chip)->ecc_stats; int bank = denali->active_bank; - uint32_t ecc_cor; + u32 ecc_cor; unsigned int max_bitflips; ecc_cor = ioread32(denali->reg + ECC_COR_INFO(bank)); @@ -346,23 +466,24 @@ static int denali_hw_ecc_fixup(struct mtd_info *mtd, * Unfortunately, we can not know the total number of corrected bits in * the page. Increase the stats by max_bitflips. (compromised solution) */ - mtd->ecc_stats.corrected += max_bitflips; + ecc_stats->corrected += max_bitflips; return max_bitflips; } -static int denali_sw_ecc_fixup(struct mtd_info *mtd, - struct denali_nand_info *denali, - unsigned long *uncor_ecc_flags, uint8_t *buf) +static int denali_sw_ecc_fixup(struct nand_chip *chip, + unsigned long *uncor_ecc_flags, u8 *buf) { - unsigned int ecc_size = denali->nand.ecc.size; + struct denali_controller *denali = to_denali_controller(chip); + struct mtd_ecc_stats *ecc_stats = &nand_to_mtd(chip)->ecc_stats; + unsigned int ecc_size = chip->ecc.size; unsigned int bitflips = 0; unsigned int max_bitflips = 0; - uint32_t err_addr, err_cor_info; + u32 err_addr, err_cor_info; unsigned int err_byte, err_sector, err_device; - uint8_t err_cor_value; + u8 err_cor_value; unsigned int prev_sector = 0; - uint32_t irq_status; + u32 irq_status; denali_reset_irq(denali); @@ -404,7 +525,7 @@ static int denali_sw_ecc_fixup(struct mtd_info *mtd, /* correct the ECC error */ flips_in_byte = hweight8(buf[offset] ^ err_cor_value); buf[offset] ^= err_cor_value; - mtd->ecc_stats.corrected += flips_in_byte; + ecc_stats->corrected += flips_in_byte; bitflips += flips_in_byte; max_bitflips = max(max_bitflips, bitflips); @@ -424,10 +545,10 @@ static int denali_sw_ecc_fixup(struct mtd_info *mtd, return max_bitflips; } -static void denali_setup_dma64(struct denali_nand_info *denali, - dma_addr_t dma_addr, int page, int write) +static void denali_setup_dma64(struct denali_controller *denali, + dma_addr_t dma_addr, int page, bool write) { - uint32_t mode; + u32 mode; const int page_count = 1; mode = DENALI_MAP10 | DENALI_BANK(denali) | page; @@ -439,7 +560,8 @@ static void denali_setup_dma64(struct denali_nand_info *denali, * burst len = 64 bytes, the number of pages */ denali->host_write(denali, mode, - 0x01002000 | (64 << 16) | (write << 8) | page_count); + 0x01002000 | (64 << 16) | + (write ? BIT(8) : 0) | page_count); /* 2. set memory low address */ denali->host_write(denali, mode, lower_32_bits(dma_addr)); @@ -448,10 +570,10 @@ static void denali_setup_dma64(struct denali_nand_info *denali, denali->host_write(denali, mode, upper_32_bits(dma_addr)); } -static void denali_setup_dma32(struct denali_nand_info *denali, - dma_addr_t dma_addr, int page, int write) +static void denali_setup_dma32(struct denali_controller *denali, + dma_addr_t dma_addr, int page, bool write) { - uint32_t mode; + u32 mode; const int page_count = 1; mode = DENALI_MAP10 | DENALI_BANK(denali); @@ -460,7 +582,7 @@ static void denali_setup_dma32(struct denali_nand_info *denali, /* 1. setup transfer type and # of pages */ denali->host_write(denali, mode | page, - 0x2000 | (write << 8) | page_count); + 0x2000 | (write ? BIT(8) : 0) | page_count); /* 2. set memory high address bits 23:8 */ denali->host_write(denali, mode | ((dma_addr >> 16) << 8), 0x2200); @@ -472,12 +594,11 @@ static void denali_setup_dma32(struct denali_nand_info *denali, denali->host_write(denali, mode | 0x14000, 0x2400); } -static int denali_pio_read(struct denali_nand_info *denali, void *buf, +static int denali_pio_read(struct denali_controller *denali, u32 *buf, size_t size, int page) { u32 addr = DENALI_MAP01 | DENALI_BANK(denali) | page; - uint32_t *buf32 = (uint32_t *)buf; - uint32_t irq_status, ecc_err_mask; + u32 irq_status, ecc_err_mask; int i; if (denali->caps & DENALI_CAP_HW_ECC_FIXUP) @@ -488,7 +609,7 @@ static int denali_pio_read(struct denali_nand_info *denali, void *buf, denali_reset_irq(denali); for (i = 0; i < size / 4; i++) - *buf32++ = denali->host_read(denali, addr); + buf[i] = denali->host_read(denali, addr); irq_status = denali_wait_for_irq(denali, INTR__PAGE_XFER_INC); if (!(irq_status & INTR__PAGE_XFER_INC)) @@ -500,29 +621,29 @@ static int denali_pio_read(struct denali_nand_info *denali, void *buf, return irq_status & ecc_err_mask ? -EBADMSG : 0; } -static int denali_pio_write(struct denali_nand_info *denali, - const void *buf, size_t size, int page) +static int denali_pio_write(struct denali_controller *denali, const u32 *buf, + size_t size, int page) { u32 addr = DENALI_MAP01 | DENALI_BANK(denali) | page; - const uint32_t *buf32 = (uint32_t *)buf; - uint32_t irq_status; + u32 irq_status; int i; denali_reset_irq(denali); for (i = 0; i < size / 4; i++) - denali->host_write(denali, addr, *buf32++); + denali->host_write(denali, addr, buf[i]); irq_status = denali_wait_for_irq(denali, - INTR__PROGRAM_COMP | INTR__PROGRAM_FAIL); + INTR__PROGRAM_COMP | + INTR__PROGRAM_FAIL); if (!(irq_status & INTR__PROGRAM_COMP)) return -EIO; return 0; } -static int denali_pio_xfer(struct denali_nand_info *denali, void *buf, - size_t size, int page, int write) +static int denali_pio_xfer(struct denali_controller *denali, void *buf, + size_t size, int page, bool write) { if (write) return denali_pio_write(denali, buf, size, page); @@ -530,11 +651,11 @@ static int denali_pio_xfer(struct denali_nand_info *denali, void *buf, return denali_pio_read(denali, buf, size, page); } -static int denali_dma_xfer(struct denali_nand_info *denali, void *buf, - size_t size, int page, int write) +static int denali_dma_xfer(struct denali_controller *denali, void *buf, + size_t size, int page, bool write) { dma_addr_t dma_addr; - uint32_t irq_mask, irq_status, ecc_err_mask; + u32 irq_mask, irq_status, ecc_err_mask; enum dma_data_direction dir = write ? DMA_TO_DEVICE : DMA_FROM_DEVICE; int ret = 0; @@ -587,12 +708,12 @@ static int denali_dma_xfer(struct denali_nand_info *denali, void *buf, return ret; } -static int denali_data_xfer(struct denali_nand_info *denali, void *buf, - size_t size, int page, int raw, int write) +static int denali_page_xfer(struct nand_chip *chip, void *buf, size_t size, + int page, bool write) { - iowrite32(raw ? 0 : ECC_ENABLE__FLAG, denali->reg + ECC_ENABLE); - iowrite32(raw ? TRANSFER_SPARE_REG__FLAG : 0, - denali->reg + TRANSFER_SPARE_REG); + struct denali_controller *denali = to_denali_controller(chip); + + denali_select_target(chip, chip->cur_cs); if (denali->dma_avail) return denali_dma_xfer(denali, buf, size, page, write); @@ -600,180 +721,23 @@ static int denali_data_xfer(struct denali_nand_info *denali, void *buf, return denali_pio_xfer(denali, buf, size, page, write); } -static void denali_oob_xfer(struct mtd_info *mtd, struct nand_chip *chip, - int page, int write) -{ - struct denali_nand_info *denali = mtd_to_denali(mtd); - int writesize = mtd->writesize; - int oobsize = mtd->oobsize; - uint8_t *bufpoi = chip->oob_poi; - int ecc_steps = chip->ecc.steps; - int ecc_size = chip->ecc.size; - int ecc_bytes = chip->ecc.bytes; - int oob_skip = denali->oob_skip_bytes; - size_t size = writesize + oobsize; - int i, pos, len; - - /* BBM at the beginning of the OOB area */ - if (write) - nand_prog_page_begin_op(chip, page, writesize, bufpoi, - oob_skip); - else - nand_read_page_op(chip, page, writesize, bufpoi, oob_skip); - bufpoi += oob_skip; - - /* OOB ECC */ - for (i = 0; i < ecc_steps; i++) { - pos = ecc_size + i * (ecc_size + ecc_bytes); - len = ecc_bytes; - - if (pos >= writesize) - pos += oob_skip; - else if (pos + len > writesize) - len = writesize - pos; - - if (write) - nand_change_write_column_op(chip, pos, bufpoi, len, - false); - else - nand_change_read_column_op(chip, pos, bufpoi, len, - false); - bufpoi += len; - if (len < ecc_bytes) { - len = ecc_bytes - len; - if (write) - nand_change_write_column_op(chip, writesize + - oob_skip, bufpoi, - len, false); - else - nand_change_read_column_op(chip, writesize + - oob_skip, bufpoi, - len, false); - bufpoi += len; - } - } - - /* OOB free */ - len = oobsize - (bufpoi - chip->oob_poi); - if (write) - nand_change_write_column_op(chip, size - len, bufpoi, len, - false); - else - nand_change_read_column_op(chip, size - len, bufpoi, len, - false); -} - -static int denali_read_page_raw(struct nand_chip *chip, uint8_t *buf, - int oob_required, int page) -{ - struct mtd_info *mtd = nand_to_mtd(chip); - struct denali_nand_info *denali = mtd_to_denali(mtd); - int writesize = mtd->writesize; - int oobsize = mtd->oobsize; - int ecc_steps = chip->ecc.steps; - int ecc_size = chip->ecc.size; - int ecc_bytes = chip->ecc.bytes; - void *tmp_buf = denali->buf; - int oob_skip = denali->oob_skip_bytes; - size_t size = writesize + oobsize; - int ret, i, pos, len; - - ret = denali_data_xfer(denali, tmp_buf, size, page, 1, 0); - if (ret) - return ret; - - /* Arrange the buffer for syndrome payload/ecc layout */ - if (buf) { - for (i = 0; i < ecc_steps; i++) { - pos = i * (ecc_size + ecc_bytes); - len = ecc_size; - - if (pos >= writesize) - pos += oob_skip; - else if (pos + len > writesize) - len = writesize - pos; - - memcpy(buf, tmp_buf + pos, len); - buf += len; - if (len < ecc_size) { - len = ecc_size - len; - memcpy(buf, tmp_buf + writesize + oob_skip, - len); - buf += len; - } - } - } - - if (oob_required) { - uint8_t *oob = chip->oob_poi; - - /* BBM at the beginning of the OOB area */ - memcpy(oob, tmp_buf + writesize, oob_skip); - oob += oob_skip; - - /* OOB ECC */ - for (i = 0; i < ecc_steps; i++) { - pos = ecc_size + i * (ecc_size + ecc_bytes); - len = ecc_bytes; - - if (pos >= writesize) - pos += oob_skip; - else if (pos + len > writesize) - len = writesize - pos; - - memcpy(oob, tmp_buf + pos, len); - oob += len; - if (len < ecc_bytes) { - len = ecc_bytes - len; - memcpy(oob, tmp_buf + writesize + oob_skip, - len); - oob += len; - } - } - - /* OOB free */ - len = oobsize - (oob - chip->oob_poi); - memcpy(oob, tmp_buf + size - len, len); - } - - return 0; -} - -static int denali_read_oob(struct nand_chip *chip, int page) -{ - struct mtd_info *mtd = nand_to_mtd(chip); - - denali_oob_xfer(mtd, chip, page, 0); - - return 0; -} - -static int denali_write_oob(struct nand_chip *chip, int page) -{ - struct mtd_info *mtd = nand_to_mtd(chip); - - denali_oob_xfer(mtd, chip, page, 1); - - return nand_prog_page_end_op(chip); -} - -static int denali_read_page(struct nand_chip *chip, uint8_t *buf, +static int denali_read_page(struct nand_chip *chip, u8 *buf, int oob_required, int page) { + struct denali_controller *denali = to_denali_controller(chip); struct mtd_info *mtd = nand_to_mtd(chip); - struct denali_nand_info *denali = mtd_to_denali(mtd); unsigned long uncor_ecc_flags = 0; int stat = 0; int ret; - ret = denali_data_xfer(denali, buf, mtd->writesize, page, 0, 0); + ret = denali_page_xfer(chip, buf, mtd->writesize, page, false); if (ret && ret != -EBADMSG) return ret; if (denali->caps & DENALI_CAP_HW_ECC_FIXUP) - stat = denali_hw_ecc_fixup(mtd, denali, &uncor_ecc_flags); + stat = denali_hw_ecc_fixup(chip, &uncor_ecc_flags); else if (ret == -EBADMSG) - stat = denali_sw_ecc_fixup(mtd, denali, &uncor_ecc_flags, buf); + stat = denali_sw_ecc_fixup(chip, &uncor_ecc_flags, buf); if (stat < 0) return stat; @@ -783,130 +747,32 @@ static int denali_read_page(struct nand_chip *chip, uint8_t *buf, if (ret) return ret; - stat = denali_check_erased_page(mtd, chip, buf, + stat = denali_check_erased_page(chip, buf, uncor_ecc_flags, stat); } return stat; } -static int denali_write_page_raw(struct nand_chip *chip, const uint8_t *buf, - int oob_required, int page) -{ - struct mtd_info *mtd = nand_to_mtd(chip); - struct denali_nand_info *denali = mtd_to_denali(mtd); - int writesize = mtd->writesize; - int oobsize = mtd->oobsize; - int ecc_steps = chip->ecc.steps; - int ecc_size = chip->ecc.size; - int ecc_bytes = chip->ecc.bytes; - void *tmp_buf = denali->buf; - int oob_skip = denali->oob_skip_bytes; - size_t size = writesize + oobsize; - int i, pos, len; - - /* - * Fill the buffer with 0xff first except the full page transfer. - * This simplifies the logic. - */ - if (!buf || !oob_required) - memset(tmp_buf, 0xff, size); - - /* Arrange the buffer for syndrome payload/ecc layout */ - if (buf) { - for (i = 0; i < ecc_steps; i++) { - pos = i * (ecc_size + ecc_bytes); - len = ecc_size; - - if (pos >= writesize) - pos += oob_skip; - else if (pos + len > writesize) - len = writesize - pos; - - memcpy(tmp_buf + pos, buf, len); - buf += len; - if (len < ecc_size) { - len = ecc_size - len; - memcpy(tmp_buf + writesize + oob_skip, buf, - len); - buf += len; - } - } - } - - if (oob_required) { - const uint8_t *oob = chip->oob_poi; - - /* BBM at the beginning of the OOB area */ - memcpy(tmp_buf + writesize, oob, oob_skip); - oob += oob_skip; - - /* OOB ECC */ - for (i = 0; i < ecc_steps; i++) { - pos = ecc_size + i * (ecc_size + ecc_bytes); - len = ecc_bytes; - - if (pos >= writesize) - pos += oob_skip; - else if (pos + len > writesize) - len = writesize - pos; - - memcpy(tmp_buf + pos, oob, len); - oob += len; - if (len < ecc_bytes) { - len = ecc_bytes - len; - memcpy(tmp_buf + writesize + oob_skip, oob, - len); - oob += len; - } - } - - /* OOB free */ - len = oobsize - (oob - chip->oob_poi); - memcpy(tmp_buf + size - len, oob, len); - } - - return denali_data_xfer(denali, tmp_buf, size, page, 1, 1); -} - -static int denali_write_page(struct nand_chip *chip, const uint8_t *buf, +static int denali_write_page(struct nand_chip *chip, const u8 *buf, int oob_required, int page) { struct mtd_info *mtd = nand_to_mtd(chip); - struct denali_nand_info *denali = mtd_to_denali(mtd); - return denali_data_xfer(denali, (void *)buf, mtd->writesize, - page, 0, 1); -} - -static void denali_select_chip(struct nand_chip *chip, int cs) -{ - struct denali_nand_info *denali = mtd_to_denali(nand_to_mtd(chip)); - - denali->active_bank = cs; -} - -static int denali_waitfunc(struct nand_chip *chip) -{ - struct denali_nand_info *denali = mtd_to_denali(nand_to_mtd(chip)); - uint32_t irq_status; - - /* R/B# pin transitioned from low to high? */ - irq_status = denali_wait_for_irq(denali, INTR__INT_ACT); - - return irq_status & INTR__INT_ACT ? 0 : NAND_STATUS_FAIL; + return denali_page_xfer(chip, (void *)buf, mtd->writesize, page, true); } static int denali_setup_data_interface(struct nand_chip *chip, int chipnr, const struct nand_data_interface *conf) { - struct denali_nand_info *denali = mtd_to_denali(nand_to_mtd(chip)); + struct denali_controller *denali = to_denali_controller(chip); + struct denali_chip_sel *sel; const struct nand_sdr_timings *timings; unsigned long t_x, mult_x; int acc_clks, re_2_we, re_2_re, we_2_re, addr_2_data; int rdwr_en_lo, rdwr_en_hi, rdwr_en_lo_hi, cs_setup; int addr_2_data_mask; - uint32_t tmp; + u32 tmp; timings = nand_get_sdr_timings(conf); if (IS_ERR(timings)) @@ -929,6 +795,8 @@ static int denali_setup_data_interface(struct nand_chip *chip, int chipnr, if (chipnr == NAND_DATA_IFACE_CHECK_ONLY) return 0; + sel = &to_denali_chip(chip)->sels[chipnr]; + /* tREA -> ACC_CLKS */ acc_clks = DIV_ROUND_UP(timings->tREA_max, t_x); acc_clks = min_t(int, acc_clks, ACC_CLKS__VALUE); @@ -936,7 +804,7 @@ static int denali_setup_data_interface(struct nand_chip *chip, int chipnr, tmp = ioread32(denali->reg + ACC_CLKS); tmp &= ~ACC_CLKS__VALUE; tmp |= FIELD_PREP(ACC_CLKS__VALUE, acc_clks); - iowrite32(tmp, denali->reg + ACC_CLKS); + sel->acc_clks = tmp; /* tRWH -> RE_2_WE */ re_2_we = DIV_ROUND_UP(timings->tRHW_min, t_x); @@ -945,7 +813,7 @@ static int denali_setup_data_interface(struct nand_chip *chip, int chipnr, tmp = ioread32(denali->reg + RE_2_WE); tmp &= ~RE_2_WE__VALUE; tmp |= FIELD_PREP(RE_2_WE__VALUE, re_2_we); - iowrite32(tmp, denali->reg + RE_2_WE); + sel->re_2_we = tmp; /* tRHZ -> RE_2_RE */ re_2_re = DIV_ROUND_UP(timings->tRHZ_max, t_x); @@ -954,7 +822,7 @@ static int denali_setup_data_interface(struct nand_chip *chip, int chipnr, tmp = ioread32(denali->reg + RE_2_RE); tmp &= ~RE_2_RE__VALUE; tmp |= FIELD_PREP(RE_2_RE__VALUE, re_2_re); - iowrite32(tmp, denali->reg + RE_2_RE); + sel->re_2_re = tmp; /* * tCCS, tWHR -> WE_2_RE @@ -968,7 +836,7 @@ static int denali_setup_data_interface(struct nand_chip *chip, int chipnr, tmp = ioread32(denali->reg + TWHR2_AND_WE_2_RE); tmp &= ~TWHR2_AND_WE_2_RE__WE_2_RE; tmp |= FIELD_PREP(TWHR2_AND_WE_2_RE__WE_2_RE, we_2_re); - iowrite32(tmp, denali->reg + TWHR2_AND_WE_2_RE); + sel->hwhr2_and_we_2_re = tmp; /* tADL -> ADDR_2_DATA */ @@ -983,7 +851,7 @@ static int denali_setup_data_interface(struct nand_chip *chip, int chipnr, tmp = ioread32(denali->reg + TCWAW_AND_ADDR_2_DATA); tmp &= ~TCWAW_AND_ADDR_2_DATA__ADDR_2_DATA; tmp |= FIELD_PREP(TCWAW_AND_ADDR_2_DATA__ADDR_2_DATA, addr_2_data); - iowrite32(tmp, denali->reg + TCWAW_AND_ADDR_2_DATA); + sel->tcwaw_and_addr_2_data = tmp; /* tREH, tWH -> RDWR_EN_HI_CNT */ rdwr_en_hi = DIV_ROUND_UP(max(timings->tREH_min, timings->tWH_min), @@ -993,7 +861,7 @@ static int denali_setup_data_interface(struct nand_chip *chip, int chipnr, tmp = ioread32(denali->reg + RDWR_EN_HI_CNT); tmp &= ~RDWR_EN_HI_CNT__VALUE; tmp |= FIELD_PREP(RDWR_EN_HI_CNT__VALUE, rdwr_en_hi); - iowrite32(tmp, denali->reg + RDWR_EN_HI_CNT); + sel->rdwr_en_hi_cnt = tmp; /* tRP, tWP -> RDWR_EN_LO_CNT */ rdwr_en_lo = DIV_ROUND_UP(max(timings->tRP_min, timings->tWP_min), t_x); @@ -1006,7 +874,7 @@ static int denali_setup_data_interface(struct nand_chip *chip, int chipnr, tmp = ioread32(denali->reg + RDWR_EN_LO_CNT); tmp &= ~RDWR_EN_LO_CNT__VALUE; tmp |= FIELD_PREP(RDWR_EN_LO_CNT__VALUE, rdwr_en_lo); - iowrite32(tmp, denali->reg + RDWR_EN_LO_CNT); + sel->rdwr_en_lo_cnt = tmp; /* tCS, tCEA -> CS_SETUP_CNT */ cs_setup = max3((int)DIV_ROUND_UP(timings->tCS_min, t_x) - rdwr_en_lo, @@ -1017,39 +885,11 @@ static int denali_setup_data_interface(struct nand_chip *chip, int chipnr, tmp = ioread32(denali->reg + CS_SETUP_CNT); tmp &= ~CS_SETUP_CNT__VALUE; tmp |= FIELD_PREP(CS_SETUP_CNT__VALUE, cs_setup); - iowrite32(tmp, denali->reg + CS_SETUP_CNT); + sel->cs_setup_cnt = tmp; return 0; } -static void denali_hw_init(struct denali_nand_info *denali) -{ - /* - * The REVISION register may not be reliable. Platforms are allowed to - * override it. - */ - if (!denali->revision) - denali->revision = swab16(ioread32(denali->reg + REVISION)); - - /* - * Set how many bytes should be skipped before writing data in OOB. - * If a non-zero value has already been set (by firmware or something), - * just use it. Otherwise, set the driver default. - */ - denali->oob_skip_bytes = ioread32(denali->reg + SPARE_AREA_SKIP_BYTES); - if (!denali->oob_skip_bytes) { - denali->oob_skip_bytes = DENALI_DEFAULT_OOB_SKIP_BYTES; - iowrite32(denali->oob_skip_bytes, - denali->reg + SPARE_AREA_SKIP_BYTES); - } - - denali_detect_max_banks(denali); - iowrite32(0x0F, denali->reg + RB_PIN_ENABLED); - iowrite32(CHIP_EN_DONT_CARE__FLAG, denali->reg + CHIP_ENABLE_DONT_CARE); - - iowrite32(0xffff, denali->reg + SPARE_AREA_MARKER); -} - int denali_calc_ecc_bytes(int step_size, int strength) { /* BCH code. Denali requires ecc.bytes to be multiple of 2 */ @@ -1060,10 +900,10 @@ EXPORT_SYMBOL(denali_calc_ecc_bytes); static int denali_ooblayout_ecc(struct mtd_info *mtd, int section, struct mtd_oob_region *oobregion) { - struct denali_nand_info *denali = mtd_to_denali(mtd); struct nand_chip *chip = mtd_to_nand(mtd); + struct denali_controller *denali = to_denali_controller(chip); - if (section) + if (section > 0) return -ERANGE; oobregion->offset = denali->oob_skip_bytes; @@ -1075,10 +915,10 @@ static int denali_ooblayout_ecc(struct mtd_info *mtd, int section, static int denali_ooblayout_free(struct mtd_info *mtd, int section, struct mtd_oob_region *oobregion) { - struct denali_nand_info *denali = mtd_to_denali(mtd); struct nand_chip *chip = mtd_to_nand(mtd); + struct denali_controller *denali = to_denali_controller(chip); - if (section) + if (section > 0) return -ERANGE; oobregion->offset = chip->ecc.total + denali->oob_skip_bytes; @@ -1092,10 +932,13 @@ static const struct mtd_ooblayout_ops denali_ooblayout_ops = { .free = denali_ooblayout_free, }; -static int denali_multidev_fixup(struct denali_nand_info *denali) +static int denali_multidev_fixup(struct nand_chip *chip) { - struct nand_chip *chip = &denali->nand; + struct denali_controller *denali = to_denali_controller(chip); struct mtd_info *mtd = nand_to_mtd(chip); + struct nand_memory_organization *memorg; + + memorg = nanddev_get_memorg(&chip->base); /* * Support for multi device: @@ -1125,11 +968,12 @@ static int denali_multidev_fixup(struct denali_nand_info *denali) } /* 2 chips in parallel */ + memorg->pagesize <<= 1; + memorg->oobsize <<= 1; mtd->size <<= 1; mtd->erasesize <<= 1; mtd->writesize <<= 1; mtd->oobsize <<= 1; - chip->chipsize <<= 1; chip->page_shift += 1; chip->phys_erase_shift += 1; chip->bbt_erase_shift += 1; @@ -1145,38 +989,10 @@ static int denali_multidev_fixup(struct denali_nand_info *denali) static int denali_attach_chip(struct nand_chip *chip) { + struct denali_controller *denali = to_denali_controller(chip); struct mtd_info *mtd = nand_to_mtd(chip); - struct denali_nand_info *denali = mtd_to_denali(mtd); int ret; - if (ioread32(denali->reg + FEATURES) & FEATURES__DMA) - denali->dma_avail = 1; - - if (denali->dma_avail) { - int dma_bit = denali->caps & DENALI_CAP_DMA_64BIT ? 64 : 32; - - ret = dma_set_mask(denali->dev, DMA_BIT_MASK(dma_bit)); - if (ret) { - dev_info(denali->dev, - "Failed to set DMA mask. Disabling DMA.\n"); - denali->dma_avail = 0; - } - } - - if (denali->dma_avail) { - chip->options |= NAND_USE_BOUNCE_BUFFER; - chip->buf_align = 16; - if (denali->caps & DENALI_CAP_DMA_64BIT) - denali->setup_dma = denali_setup_dma64; - else - denali->setup_dma = denali_setup_dma32; - } - - chip->bbt_options |= NAND_BBT_USE_FLASH; - chip->bbt_options |= NAND_BBT_NO_OOB; - chip->ecc.mode = NAND_ECC_HW_SYNDROME; - chip->options |= NAND_NO_SUBPAGE_WRITE; - ret = nand_ecc_choose_conf(chip, denali->ecc_caps, mtd->oobsize - denali->oob_skip_bytes); if (ret) { @@ -1188,123 +1004,230 @@ static int denali_attach_chip(struct nand_chip *chip) "chosen ECC settings: step=%d, strength=%d, bytes=%d\n", chip->ecc.size, chip->ecc.strength, chip->ecc.bytes); - iowrite32(FIELD_PREP(ECC_CORRECTION__ERASE_THRESHOLD, 1) | - FIELD_PREP(ECC_CORRECTION__VALUE, chip->ecc.strength), - denali->reg + ECC_CORRECTION); - iowrite32(mtd->erasesize / mtd->writesize, - denali->reg + PAGES_PER_BLOCK); - iowrite32(chip->options & NAND_BUSWIDTH_16 ? 1 : 0, - denali->reg + DEVICE_WIDTH); - iowrite32(chip->options & NAND_ROW_ADDR_3 ? 0 : TWO_ROW_ADDR_CYCLES__FLAG, - denali->reg + TWO_ROW_ADDR_CYCLES); - iowrite32(mtd->writesize, denali->reg + DEVICE_MAIN_AREA_SIZE); - iowrite32(mtd->oobsize, denali->reg + DEVICE_SPARE_AREA_SIZE); + ret = denali_multidev_fixup(chip); + if (ret) + return ret; - iowrite32(chip->ecc.size, denali->reg + CFG_DATA_BLOCK_SIZE); - iowrite32(chip->ecc.size, denali->reg + CFG_LAST_DATA_BLOCK_SIZE); - /* chip->ecc.steps is set by nand_scan_tail(); not available here */ - iowrite32(mtd->writesize / chip->ecc.size, - denali->reg + CFG_NUM_DATA_BLOCKS); + return 0; +} - mtd_set_ooblayout(mtd, &denali_ooblayout_ops); +static void denali_exec_in8(struct denali_controller *denali, u32 type, + u8 *buf, unsigned int len) +{ + int i; - if (chip->options & NAND_BUSWIDTH_16) { - chip->legacy.read_buf = denali_read_buf16; - chip->legacy.write_buf = denali_write_buf16; - } else { - chip->legacy.read_buf = denali_read_buf; - chip->legacy.write_buf = denali_write_buf; + for (i = 0; i < len; i++) + buf[i] = denali->host_read(denali, type | DENALI_BANK(denali)); +} + +static void denali_exec_in16(struct denali_controller *denali, u32 type, + u8 *buf, unsigned int len) +{ + u32 data; + int i; + + for (i = 0; i < len; i += 2) { + data = denali->host_read(denali, type | DENALI_BANK(denali)); + /* bit 31:24 and 15:8 are used for DDR */ + buf[i] = data; + buf[i + 1] = data >> 16; } - chip->ecc.read_page = denali_read_page; - chip->ecc.read_page_raw = denali_read_page_raw; - chip->ecc.write_page = denali_write_page; - chip->ecc.write_page_raw = denali_write_page_raw; - chip->ecc.read_oob = denali_read_oob; - chip->ecc.write_oob = denali_write_oob; +} - ret = denali_multidev_fixup(denali); - if (ret) - return ret; +static void denali_exec_in(struct denali_controller *denali, u32 type, + u8 *buf, unsigned int len, bool width16) +{ + if (width16) + denali_exec_in16(denali, type, buf, len); + else + denali_exec_in8(denali, type, buf, len); +} - /* - * This buffer is DMA-mapped by denali_{read,write}_page_raw. Do not - * use devm_kmalloc() because the memory allocated by devm_ does not - * guarantee DMA-safe alignment. - */ - denali->buf = kmalloc(mtd->writesize + mtd->oobsize, GFP_KERNEL); - if (!denali->buf) - return -ENOMEM; +static void denali_exec_out8(struct denali_controller *denali, u32 type, + const u8 *buf, unsigned int len) +{ + int i; - return 0; + for (i = 0; i < len; i++) + denali->host_write(denali, type | DENALI_BANK(denali), buf[i]); } -static void denali_detach_chip(struct nand_chip *chip) +static void denali_exec_out16(struct denali_controller *denali, u32 type, + const u8 *buf, unsigned int len) { - struct mtd_info *mtd = nand_to_mtd(chip); - struct denali_nand_info *denali = mtd_to_denali(mtd); + int i; + + for (i = 0; i < len; i += 2) + denali->host_write(denali, type | DENALI_BANK(denali), + buf[i + 1] << 16 | buf[i]); +} - kfree(denali->buf); +static void denali_exec_out(struct denali_controller *denali, u32 type, + const u8 *buf, unsigned int len, bool width16) +{ + if (width16) + denali_exec_out16(denali, type, buf, len); + else + denali_exec_out8(denali, type, buf, len); +} + +static int denali_exec_waitrdy(struct denali_controller *denali) +{ + u32 irq_stat; + + /* R/B# pin transitioned from low to high? */ + irq_stat = denali_wait_for_irq(denali, INTR__INT_ACT); + + /* Just in case nand_operation has multiple NAND_OP_WAITRDY_INSTR. */ + denali_reset_irq(denali); + + return irq_stat & INTR__INT_ACT ? 0 : -EIO; +} + +static int denali_exec_instr(struct nand_chip *chip, + const struct nand_op_instr *instr) +{ + struct denali_controller *denali = to_denali_controller(chip); + + switch (instr->type) { + case NAND_OP_CMD_INSTR: + denali_exec_out8(denali, DENALI_MAP11_CMD, + &instr->ctx.cmd.opcode, 1); + return 0; + case NAND_OP_ADDR_INSTR: + denali_exec_out8(denali, DENALI_MAP11_ADDR, + instr->ctx.addr.addrs, + instr->ctx.addr.naddrs); + return 0; + case NAND_OP_DATA_IN_INSTR: + denali_exec_in(denali, DENALI_MAP11_DATA, + instr->ctx.data.buf.in, + instr->ctx.data.len, + !instr->ctx.data.force_8bit && + chip->options & NAND_BUSWIDTH_16); + return 0; + case NAND_OP_DATA_OUT_INSTR: + denali_exec_out(denali, DENALI_MAP11_DATA, + instr->ctx.data.buf.out, + instr->ctx.data.len, + !instr->ctx.data.force_8bit && + chip->options & NAND_BUSWIDTH_16); + return 0; + case NAND_OP_WAITRDY_INSTR: + return denali_exec_waitrdy(denali); + default: + WARN_ONCE(1, "unsupported NAND instruction type: %d\n", + instr->type); + + return -EINVAL; + } +} + +static int denali_exec_op(struct nand_chip *chip, + const struct nand_operation *op, bool check_only) +{ + int i, ret; + + if (check_only) + return 0; + + denali_select_target(chip, op->cs); + + /* + * Some commands contain NAND_OP_WAITRDY_INSTR. + * irq must be cleared here to catch the R/B# interrupt there. + */ + denali_reset_irq(to_denali_controller(chip)); + + for (i = 0; i < op->ninstrs; i++) { + ret = denali_exec_instr(chip, &op->instrs[i]); + if (ret) + return ret; + } + + return 0; } static const struct nand_controller_ops denali_controller_ops = { .attach_chip = denali_attach_chip, - .detach_chip = denali_detach_chip, + .exec_op = denali_exec_op, .setup_data_interface = denali_setup_data_interface, }; -int denali_init(struct denali_nand_info *denali) +int denali_chip_init(struct denali_controller *denali, + struct denali_chip *dchip) { - struct nand_chip *chip = &denali->nand; + struct nand_chip *chip = &dchip->chip; struct mtd_info *mtd = nand_to_mtd(chip); - u32 features = ioread32(denali->reg + FEATURES); - int ret; + struct denali_chip *dchip2; + int i, j, ret; - mtd->dev.parent = denali->dev; - denali_hw_init(denali); + chip->controller = &denali->controller; - init_completion(&denali->complete); - spin_lock_init(&denali->irq_lock); + /* sanity checks for bank numbers */ + for (i = 0; i < dchip->nsels; i++) { + unsigned int bank = dchip->sels[i].bank; - denali_clear_irq_all(denali); + if (bank >= denali->nbanks) { + dev_err(denali->dev, "unsupported bank %d\n", bank); + return -EINVAL; + } - ret = devm_request_irq(denali->dev, denali->irq, denali_isr, - IRQF_SHARED, DENALI_NAND_NAME, denali); - if (ret) { - dev_err(denali->dev, "Unable to request IRQ\n"); - return ret; - } + for (j = 0; j < i; j++) { + if (bank == dchip->sels[j].bank) { + dev_err(denali->dev, + "bank %d is assigned twice in the same chip\n", + bank); + return -EINVAL; + } + } - denali_enable_irq(denali); + list_for_each_entry(dchip2, &denali->chips, node) { + for (j = 0; j < dchip2->nsels; j++) { + if (bank == dchip2->sels[j].bank) { + dev_err(denali->dev, + "bank %d is already used\n", + bank); + return -EINVAL; + } + } + } + } - denali->active_bank = DENALI_INVALID_BANK; + mtd->dev.parent = denali->dev; - nand_set_flash_node(chip, denali->dev->of_node); - /* Fallback to the default name if DT did not give "label" property */ - if (!mtd->name) + /* + * Fallback to the default name if DT did not give "label" property. + * Use "label" property if multiple chips are connected. + */ + if (!mtd->name && list_empty(&denali->chips)) mtd->name = "denali-nand"; - chip->legacy.select_chip = denali_select_chip; - chip->legacy.read_byte = denali_read_byte; - chip->legacy.write_byte = denali_write_byte; - chip->legacy.cmd_ctrl = denali_cmd_ctrl; - chip->legacy.waitfunc = denali_waitfunc; - - if (features & FEATURES__INDEX_ADDR) { - denali->host_read = denali_indexed_read; - denali->host_write = denali_indexed_write; - } else { - denali->host_read = denali_direct_read; - denali->host_write = denali_direct_write; + if (denali->dma_avail) { + chip->options |= NAND_USE_BOUNCE_BUFFER; + chip->buf_align = 16; } /* clk rate info is needed for setup_data_interface */ if (!denali->clk_rate || !denali->clk_x_rate) chip->options |= NAND_KEEP_TIMINGS; - chip->legacy.dummy_controller.ops = &denali_controller_ops; - ret = nand_scan(chip, denali->max_banks); + chip->bbt_options |= NAND_BBT_USE_FLASH; + chip->bbt_options |= NAND_BBT_NO_OOB; + chip->options |= NAND_NO_SUBPAGE_WRITE; + chip->ecc.mode = NAND_ECC_HW_SYNDROME; + chip->ecc.read_page = denali_read_page; + chip->ecc.write_page = denali_write_page; + chip->ecc.read_page_raw = denali_read_page_raw; + chip->ecc.write_page_raw = denali_write_page_raw; + chip->ecc.read_oob = denali_read_oob; + chip->ecc.write_oob = denali_write_oob; + + mtd_set_ooblayout(mtd, &denali_ooblayout_ops); + + ret = nand_scan(chip, dchip->nsels); if (ret) - goto disable_irq; + return ret; ret = mtd_device_register(mtd, NULL, 0); if (ret) { @@ -1312,20 +1235,111 @@ int denali_init(struct denali_nand_info *denali) goto cleanup_nand; } + list_add_tail(&dchip->node, &denali->chips); + return 0; cleanup_nand: nand_cleanup(chip); -disable_irq: - denali_disable_irq(denali); return ret; } +EXPORT_SYMBOL_GPL(denali_chip_init); + +int denali_init(struct denali_controller *denali) +{ + u32 features = ioread32(denali->reg + FEATURES); + int ret; + + nand_controller_init(&denali->controller); + denali->controller.ops = &denali_controller_ops; + init_completion(&denali->complete); + spin_lock_init(&denali->irq_lock); + INIT_LIST_HEAD(&denali->chips); + denali->active_bank = DENALI_INVALID_BANK; + + /* + * The REVISION register may not be reliable. Platforms are allowed to + * override it. + */ + if (!denali->revision) + denali->revision = swab16(ioread32(denali->reg + REVISION)); + + denali->nbanks = 1 << FIELD_GET(FEATURES__N_BANKS, features); + + /* the encoding changed from rev 5.0 to 5.1 */ + if (denali->revision < 0x0501) + denali->nbanks <<= 1; + + if (features & FEATURES__DMA) + denali->dma_avail = true; + + if (denali->dma_avail) { + int dma_bit = denali->caps & DENALI_CAP_DMA_64BIT ? 64 : 32; + + ret = dma_set_mask(denali->dev, DMA_BIT_MASK(dma_bit)); + if (ret) { + dev_info(denali->dev, + "Failed to set DMA mask. Disabling DMA.\n"); + denali->dma_avail = false; + } + } + + if (denali->dma_avail) { + if (denali->caps & DENALI_CAP_DMA_64BIT) + denali->setup_dma = denali_setup_dma64; + else + denali->setup_dma = denali_setup_dma32; + } + + if (features & FEATURES__INDEX_ADDR) { + denali->host_read = denali_indexed_read; + denali->host_write = denali_indexed_write; + } else { + denali->host_read = denali_direct_read; + denali->host_write = denali_direct_write; + } + + /* + * Set how many bytes should be skipped before writing data in OOB. + * If a non-zero value has already been set (by firmware or something), + * just use it. Otherwise, set the driver's default. + */ + denali->oob_skip_bytes = ioread32(denali->reg + SPARE_AREA_SKIP_BYTES); + if (!denali->oob_skip_bytes) { + denali->oob_skip_bytes = DENALI_DEFAULT_OOB_SKIP_BYTES; + iowrite32(denali->oob_skip_bytes, + denali->reg + SPARE_AREA_SKIP_BYTES); + } + + iowrite32(0, denali->reg + TRANSFER_SPARE_REG); + iowrite32(GENMASK(denali->nbanks - 1, 0), denali->reg + RB_PIN_ENABLED); + iowrite32(CHIP_EN_DONT_CARE__FLAG, denali->reg + CHIP_ENABLE_DONT_CARE); + iowrite32(ECC_ENABLE__FLAG, denali->reg + ECC_ENABLE); + iowrite32(0xffff, denali->reg + SPARE_AREA_MARKER); + + denali_clear_irq_all(denali); + + ret = devm_request_irq(denali->dev, denali->irq, denali_isr, + IRQF_SHARED, DENALI_NAND_NAME, denali); + if (ret) { + dev_err(denali->dev, "Unable to request IRQ\n"); + return ret; + } + + denali_enable_irq(denali); + + return 0; +} EXPORT_SYMBOL(denali_init); -void denali_remove(struct denali_nand_info *denali) +void denali_remove(struct denali_controller *denali) { - nand_release(&denali->nand); + struct denali_chip *dchip; + + list_for_each_entry(dchip, &denali->chips, node) + nand_release(&dchip->chip); + denali_disable_irq(denali); } EXPORT_SYMBOL(denali_remove); diff --git a/drivers/mtd/nand/raw/denali.h b/drivers/mtd/nand/raw/denali.h index c8c2620fc736..e5cdcda56d14 100644 --- a/drivers/mtd/nand/raw/denali.h +++ b/drivers/mtd/nand/raw/denali.h @@ -9,6 +9,7 @@ #include <linux/bits.h> #include <linux/completion.h> +#include <linux/list.h> #include <linux/mtd/rawnand.h> #include <linux/spinlock_types.h> #include <linux/types.h> @@ -290,38 +291,108 @@ #define CHNL_ACTIVE__CHANNEL2 BIT(2) #define CHNL_ACTIVE__CHANNEL3 BIT(3) -struct denali_nand_info { - struct nand_chip nand; - unsigned long clk_rate; /* core clock rate */ - unsigned long clk_x_rate; /* bus interface clock rate */ - int active_bank; /* currently selected bank */ +/** + * struct denali_chip_sel - per-CS data of Denali NAND + * + * @bank: bank id of the controller this CS is connected to + * @hwhr2_and_we_2_re: value of timing register HWHR2_AND_WE_2_RE + * @tcwaw_and_addr_2_data: value of timing register TCWAW_AND_ADDR_2_DATA + * @re_2_we: value of timing register RE_2_WE + * @acc_clks: value of timing register ACC_CLKS + * @rdwr_en_lo_cnt: value of timing register RDWR_EN_LO_CNT + * @rdwr_en_hi_cnt: value of timing register RDWR_EN_HI_CNT + * @cs_setup_cnt: value of timing register CS_SETUP_CNT + * @re_2_re: value of timing register RE_2_RE + */ +struct denali_chip_sel { + int bank; + u32 hwhr2_and_we_2_re; + u32 tcwaw_and_addr_2_data; + u32 re_2_we; + u32 acc_clks; + u32 rdwr_en_lo_cnt; + u32 rdwr_en_hi_cnt; + u32 cs_setup_cnt; + u32 re_2_re; +}; + +/** + * struct denali_chip - per-chip data of Denali NAND + * + * @chip: base NAND chip structure + * @node: node to be used to associate this chip with the controller + * @nsels: the number of CS lines of this chip + * @sels: the array of per-cs data + */ +struct denali_chip { + struct nand_chip chip; + struct list_head node; + unsigned int nsels; + struct denali_chip_sel sels[0]; +}; + +/** + * struct denali_controller - Denali NAND controller data + * + * @controller: base NAND controller structure + * @dev: device + * @chips: the list of chips attached to this controller + * @clk_rate: frequency of core clock + * @clk_x_rate: frequency of bus interface clock + * @reg: base of Register Interface + * @host: base of Host Data/Command interface + * @complete: completion used to wait for interrupts + * @irq: interrupt number + * @irq_mask: interrupt bits the controller is waiting for + * @irq_status: interrupt bits of events that have happened + * @irq_lock: lock to protect @irq_mask and @irq_status + * @dma_avail: set if DMA engine is available + * @devs_per_cs: number of devices connected in parallel + * @oob_skip_bytes: number of bytes in OOB skipped by the ECC engine + * @active_bank: active bank id + * @nbanks: the number of banks supported by this controller + * @revision: IP revision + * @caps: controller capabilities that cannot be detected run-time + * @ecc_caps: ECC engine capabilities + * @host_read: callback for read access of Host Data/Command Interface + * @host_write: callback for write access of Host Data/Command Interface + * @setup_dma: callback for setup of the Data DMA + */ +struct denali_controller { + struct nand_controller controller; struct device *dev; - void __iomem *reg; /* Register Interface */ - void __iomem *host; /* Host Data/Command Interface */ + struct list_head chips; + unsigned long clk_rate; + unsigned long clk_x_rate; + void __iomem *reg; + void __iomem *host; struct completion complete; - spinlock_t irq_lock; /* protect irq_mask and irq_status */ - u32 irq_mask; /* interrupts we are waiting for */ - u32 irq_status; /* interrupts that have happened */ int irq; - void *buf; /* for syndrome layout conversion */ - int dma_avail; /* can support DMA? */ - int devs_per_cs; /* devices connected in parallel */ - int oob_skip_bytes; /* number of bytes reserved for BBM */ - int max_banks; - unsigned int revision; /* IP revision */ - unsigned int caps; /* IP capability (or quirk) */ + u32 irq_mask; + u32 irq_status; + spinlock_t irq_lock; + bool dma_avail; + int devs_per_cs; + int oob_skip_bytes; + int active_bank; + int nbanks; + unsigned int revision; + unsigned int caps; const struct nand_ecc_caps *ecc_caps; - u32 (*host_read)(struct denali_nand_info *denali, u32 addr); - void (*host_write)(struct denali_nand_info *denali, u32 addr, u32 data); - void (*setup_dma)(struct denali_nand_info *denali, dma_addr_t dma_addr, - int page, int write); + u32 (*host_read)(struct denali_controller *denali, u32 addr); + void (*host_write)(struct denali_controller *denali, u32 addr, + u32 data); + void (*setup_dma)(struct denali_controller *denali, dma_addr_t dma_addr, + int page, bool write); }; #define DENALI_CAP_HW_ECC_FIXUP BIT(0) #define DENALI_CAP_DMA_64BIT BIT(1) int denali_calc_ecc_bytes(int step_size, int strength); -int denali_init(struct denali_nand_info *denali); -void denali_remove(struct denali_nand_info *denali); +int denali_chip_init(struct denali_controller *denali, + struct denali_chip *dchip); +int denali_init(struct denali_controller *denali); +void denali_remove(struct denali_controller *denali); #endif /* __DENALI_H__ */ diff --git a/drivers/mtd/nand/raw/denali_dt.c b/drivers/mtd/nand/raw/denali_dt.c index 0b5ae2418815..5e14836f6bd5 100644 --- a/drivers/mtd/nand/raw/denali_dt.c +++ b/drivers/mtd/nand/raw/denali_dt.c @@ -18,7 +18,7 @@ #include "denali.h" struct denali_dt { - struct denali_nand_info denali; + struct denali_controller controller; struct clk *clk; /* core clock */ struct clk *clk_x; /* bus interface clock */ struct clk *clk_ecc; /* ECC circuit clock */ @@ -71,19 +71,92 @@ static const struct of_device_id denali_nand_dt_ids[] = { }; MODULE_DEVICE_TABLE(of, denali_nand_dt_ids); +static int denali_dt_chip_init(struct denali_controller *denali, + struct device_node *chip_np) +{ + struct denali_chip *dchip; + u32 bank; + int nsels, i, ret; + + nsels = of_property_count_u32_elems(chip_np, "reg"); + if (nsels < 0) + return nsels; + + dchip = devm_kzalloc(denali->dev, struct_size(dchip, sels, nsels), + GFP_KERNEL); + if (!dchip) + return -ENOMEM; + + dchip->nsels = nsels; + + for (i = 0; i < nsels; i++) { + ret = of_property_read_u32_index(chip_np, "reg", i, &bank); + if (ret) + return ret; + + dchip->sels[i].bank = bank; + + nand_set_flash_node(&dchip->chip, chip_np); + } + + return denali_chip_init(denali, dchip); +} + +/* Backward compatibility for old platforms */ +static int denali_dt_legacy_chip_init(struct denali_controller *denali) +{ + struct denali_chip *dchip; + int nsels, i; + + nsels = denali->nbanks; + + dchip = devm_kzalloc(denali->dev, struct_size(dchip, sels, nsels), + GFP_KERNEL); + if (!dchip) + return -ENOMEM; + + dchip->nsels = nsels; + + for (i = 0; i < nsels; i++) + dchip->sels[i].bank = i; + + nand_set_flash_node(&dchip->chip, denali->dev->of_node); + + return denali_chip_init(denali, dchip); +} + +/* + * Check the DT binding. + * The new binding expects chip subnodes in the controller node. + * So, #address-cells = <1>; #size-cells = <0>; are required. + * Check the #size-cells to distinguish the binding. + */ +static bool denali_dt_is_legacy_binding(struct device_node *np) +{ + u32 cells; + int ret; + + ret = of_property_read_u32(np, "#size-cells", &cells); + if (ret) + return true; + + return cells != 0; +} + static int denali_dt_probe(struct platform_device *pdev) { struct device *dev = &pdev->dev; struct resource *res; struct denali_dt *dt; const struct denali_dt_data *data; - struct denali_nand_info *denali; + struct denali_controller *denali; + struct device_node *np; int ret; dt = devm_kzalloc(dev, sizeof(*dt), GFP_KERNEL); if (!dt) return -ENOMEM; - denali = &dt->denali; + denali = &dt->controller; data = of_device_get_match_data(dev); if (data) { @@ -140,9 +213,26 @@ static int denali_dt_probe(struct platform_device *pdev) if (ret) goto out_disable_clk_ecc; + if (denali_dt_is_legacy_binding(dev->of_node)) { + ret = denali_dt_legacy_chip_init(denali); + if (ret) + goto out_remove_denali; + } else { + for_each_child_of_node(dev->of_node, np) { + ret = denali_dt_chip_init(denali, np); + if (ret) { + of_node_put(np); + goto out_remove_denali; + } + } + } + platform_set_drvdata(pdev, dt); + return 0; +out_remove_denali: + denali_remove(denali); out_disable_clk_ecc: clk_disable_unprepare(dt->clk_ecc); out_disable_clk_x: @@ -157,7 +247,7 @@ static int denali_dt_remove(struct platform_device *pdev) { struct denali_dt *dt = platform_get_drvdata(pdev); - denali_remove(&dt->denali); + denali_remove(&dt->controller); clk_disable_unprepare(dt->clk_ecc); clk_disable_unprepare(dt->clk_x); clk_disable_unprepare(dt->clk); diff --git a/drivers/mtd/nand/raw/denali_pci.c b/drivers/mtd/nand/raw/denali_pci.c index 48e9ac54ad53..d62aa5271753 100644 --- a/drivers/mtd/nand/raw/denali_pci.c +++ b/drivers/mtd/nand/raw/denali_pci.c @@ -29,10 +29,11 @@ NAND_ECC_CAPS_SINGLE(denali_pci_ecc_caps, denali_calc_ecc_bytes, 512, 8, 15); static int denali_pci_probe(struct pci_dev *dev, const struct pci_device_id *id) { - int ret; resource_size_t csr_base, mem_base; unsigned long csr_len, mem_len; - struct denali_nand_info *denali; + struct denali_controller *denali; + struct denali_chip *dchip; + int nsels, ret, i; denali = devm_kzalloc(&dev->dev, sizeof(*denali), GFP_KERNEL); if (!denali) @@ -64,7 +65,6 @@ static int denali_pci_probe(struct pci_dev *dev, const struct pci_device_id *id) denali->dev = &dev->dev; denali->irq = dev->irq; denali->ecc_caps = &denali_pci_ecc_caps; - denali->nand.ecc.options |= NAND_ECC_MAXIMIZE; denali->clk_rate = 50000000; /* 50 MHz */ denali->clk_x_rate = 200000000; /* 200 MHz */ @@ -84,27 +84,49 @@ static int denali_pci_probe(struct pci_dev *dev, const struct pci_device_id *id) if (!denali->host) { dev_err(&dev->dev, "Spectra: ioremap_nocache failed!"); ret = -ENOMEM; - goto failed_remap_reg; + goto out_unmap_reg; } ret = denali_init(denali); if (ret) - goto failed_remap_mem; + goto out_unmap_host; + + nsels = denali->nbanks; + + dchip = devm_kzalloc(denali->dev, struct_size(dchip, sels, nsels), + GFP_KERNEL); + if (!dchip) { + ret = -ENOMEM; + goto out_remove_denali; + } + + dchip->chip.ecc.options |= NAND_ECC_MAXIMIZE; + + dchip->nsels = nsels; + + for (i = 0; i < nsels; i++) + dchip->sels[i].bank = i; + + ret = denali_chip_init(denali, dchip); + if (ret) + goto out_remove_denali; pci_set_drvdata(dev, denali); return 0; -failed_remap_mem: +out_remove_denali: + denali_remove(denali); +out_unmap_host: iounmap(denali->host); -failed_remap_reg: +out_unmap_reg: iounmap(denali->reg); return ret; } static void denali_pci_remove(struct pci_dev *dev) { - struct denali_nand_info *denali = pci_get_drvdata(dev); + struct denali_controller *denali = pci_get_drvdata(dev); denali_remove(denali); iounmap(denali->reg); diff --git a/drivers/mtd/nand/raw/diskonchip.c b/drivers/mtd/nand/raw/diskonchip.c index 53f57e0f007e..f430c4bf0323 100644 --- a/drivers/mtd/nand/raw/diskonchip.c +++ b/drivers/mtd/nand/raw/diskonchip.c @@ -1028,6 +1028,7 @@ static inline int __init nftl_partscan(struct mtd_info *mtd, struct mtd_partitio { struct nand_chip *this = mtd_to_nand(mtd); struct doc_priv *doc = nand_get_controller_data(this); + struct nand_memory_organization *memorg; int ret = 0; u_char *buf; struct NFTLMediaHeader *mh; @@ -1036,6 +1037,8 @@ static inline int __init nftl_partscan(struct mtd_info *mtd, struct mtd_partitio unsigned blocks, maxblocks; int offs, numheaders; + memorg = nanddev_get_memorg(&this->base); + buf = kmalloc(mtd->writesize, GFP_KERNEL); if (!buf) { return 0; @@ -1082,6 +1085,7 @@ static inline int __init nftl_partscan(struct mtd_info *mtd, struct mtd_partitio implementation of the NAND layer. */ if (mh->UnitSizeFactor != 0xff) { this->bbt_erase_shift += (0xff - mh->UnitSizeFactor); + memorg->pages_per_eraseblock <<= (0xff - mh->UnitSizeFactor); mtd->erasesize <<= (0xff - mh->UnitSizeFactor); pr_info("Setting virtual erase size to %d\n", mtd->erasesize); blocks = mtd->size >> this->bbt_erase_shift; @@ -1287,7 +1291,7 @@ static int __init inftl_scan_bbt(struct mtd_info *mtd) struct doc_priv *doc = nand_get_controller_data(this); struct mtd_partition parts[5]; - if (this->numchips > doc->chips_per_floor) { + if (nanddev_ntargets(&this->base) > doc->chips_per_floor) { pr_err("Multi-floor INFTL devices not yet supported.\n"); return -EIO; } @@ -1477,6 +1481,7 @@ static int __init doc_probe(unsigned long physadr) break; case DOC_ChipID_DocMilPlus32: pr_err("DiskOnChip Millennium Plus 32MB is not supported, ignoring.\n"); + /* fall through */ default: ret = -ENODEV; goto notfound; diff --git a/drivers/mtd/nand/raw/fsl_elbc_nand.c b/drivers/mtd/nand/raw/fsl_elbc_nand.c index 70f0d2b450ea..423828ff68e6 100644 --- a/drivers/mtd/nand/raw/fsl_elbc_nand.c +++ b/drivers/mtd/nand/raw/fsl_elbc_nand.c @@ -355,6 +355,15 @@ static void fsl_elbc_cmdfunc(struct nand_chip *chip, unsigned int command, fsl_elbc_run_command(mtd); return; + /* RNDOUT moves the pointer inside the page */ + case NAND_CMD_RNDOUT: + dev_dbg(priv->dev, + "fsl_elbc_cmdfunc: NAND_CMD_RNDOUT, column: 0x%x.\n", + column); + + elbc_fcm_ctrl->index = column; + return; + /* READOOB reads only the OOB because no ECC is performed. */ case NAND_CMD_READOOB: dev_vdbg(priv->dev, @@ -635,79 +644,6 @@ static int fsl_elbc_wait(struct nand_chip *chip) return (elbc_fcm_ctrl->mdr & 0xff) | NAND_STATUS_WP; } -static int fsl_elbc_attach_chip(struct nand_chip *chip) -{ - struct mtd_info *mtd = nand_to_mtd(chip); - struct fsl_elbc_mtd *priv = nand_get_controller_data(chip); - struct fsl_lbc_ctrl *ctrl = priv->ctrl; - struct fsl_lbc_regs __iomem *lbc = ctrl->regs; - unsigned int al; - - /* calculate FMR Address Length field */ - al = 0; - if (chip->pagemask & 0xffff0000) - al++; - if (chip->pagemask & 0xff000000) - al++; - - priv->fmr |= al << FMR_AL_SHIFT; - - dev_dbg(priv->dev, "fsl_elbc_init: nand->numchips = %d\n", - chip->numchips); - dev_dbg(priv->dev, "fsl_elbc_init: nand->chipsize = %lld\n", - chip->chipsize); - dev_dbg(priv->dev, "fsl_elbc_init: nand->pagemask = %8x\n", - chip->pagemask); - dev_dbg(priv->dev, "fsl_elbc_init: nand->legacy.chip_delay = %d\n", - chip->legacy.chip_delay); - dev_dbg(priv->dev, "fsl_elbc_init: nand->badblockpos = %d\n", - chip->badblockpos); - dev_dbg(priv->dev, "fsl_elbc_init: nand->chip_shift = %d\n", - chip->chip_shift); - dev_dbg(priv->dev, "fsl_elbc_init: nand->page_shift = %d\n", - chip->page_shift); - dev_dbg(priv->dev, "fsl_elbc_init: nand->phys_erase_shift = %d\n", - chip->phys_erase_shift); - dev_dbg(priv->dev, "fsl_elbc_init: nand->ecc.mode = %d\n", - chip->ecc.mode); - dev_dbg(priv->dev, "fsl_elbc_init: nand->ecc.steps = %d\n", - chip->ecc.steps); - dev_dbg(priv->dev, "fsl_elbc_init: nand->ecc.bytes = %d\n", - chip->ecc.bytes); - dev_dbg(priv->dev, "fsl_elbc_init: nand->ecc.total = %d\n", - chip->ecc.total); - dev_dbg(priv->dev, "fsl_elbc_init: mtd->ooblayout = %p\n", - mtd->ooblayout); - dev_dbg(priv->dev, "fsl_elbc_init: mtd->flags = %08x\n", mtd->flags); - dev_dbg(priv->dev, "fsl_elbc_init: mtd->size = %lld\n", mtd->size); - dev_dbg(priv->dev, "fsl_elbc_init: mtd->erasesize = %d\n", - mtd->erasesize); - dev_dbg(priv->dev, "fsl_elbc_init: mtd->writesize = %d\n", - mtd->writesize); - dev_dbg(priv->dev, "fsl_elbc_init: mtd->oobsize = %d\n", - mtd->oobsize); - - /* adjust Option Register and ECC to match Flash page size */ - if (mtd->writesize == 512) { - priv->page_size = 0; - clrbits32(&lbc->bank[priv->bank].or, OR_FCM_PGS); - } else if (mtd->writesize == 2048) { - priv->page_size = 1; - setbits32(&lbc->bank[priv->bank].or, OR_FCM_PGS); - } else { - dev_err(priv->dev, - "fsl_elbc_init: page size %d is not supported\n", - mtd->writesize); - return -ENOTSUPP; - } - - return 0; -} - -static const struct nand_controller_ops fsl_elbc_controller_ops = { - .attach_chip = fsl_elbc_attach_chip, -}; - static int fsl_elbc_read_page(struct nand_chip *chip, uint8_t *buf, int oob_required, int page) { @@ -794,27 +730,116 @@ static int fsl_elbc_chip_init(struct fsl_elbc_mtd *priv) chip->controller = &elbc_fcm_ctrl->controller; nand_set_controller_data(chip, priv); - chip->ecc.read_page = fsl_elbc_read_page; - chip->ecc.write_page = fsl_elbc_write_page; - chip->ecc.write_subpage = fsl_elbc_write_subpage; - - /* If CS Base Register selects full hardware ECC then use it */ - if ((in_be32(&lbc->bank[priv->bank].br) & BR_DECC) == - BR_DECC_CHK_GEN) { - chip->ecc.mode = NAND_ECC_HW; - mtd_set_ooblayout(mtd, &fsl_elbc_ooblayout_ops); - chip->ecc.size = 512; - chip->ecc.bytes = 3; - chip->ecc.strength = 1; + return 0; +} + +static int fsl_elbc_attach_chip(struct nand_chip *chip) +{ + struct mtd_info *mtd = nand_to_mtd(chip); + struct fsl_elbc_mtd *priv = nand_get_controller_data(chip); + struct fsl_lbc_ctrl *ctrl = priv->ctrl; + struct fsl_lbc_regs __iomem *lbc = ctrl->regs; + unsigned int al; + + switch (chip->ecc.mode) { + /* + * if ECC was not chosen in DT, decide whether to use HW or SW ECC from + * CS Base Register + */ + case NAND_ECC_NONE: + /* If CS Base Register selects full hardware ECC then use it */ + if ((in_be32(&lbc->bank[priv->bank].br) & BR_DECC) == + BR_DECC_CHK_GEN) { + chip->ecc.read_page = fsl_elbc_read_page; + chip->ecc.write_page = fsl_elbc_write_page; + chip->ecc.write_subpage = fsl_elbc_write_subpage; + + chip->ecc.mode = NAND_ECC_HW; + mtd_set_ooblayout(mtd, &fsl_elbc_ooblayout_ops); + chip->ecc.size = 512; + chip->ecc.bytes = 3; + chip->ecc.strength = 1; + } else { + /* otherwise fall back to default software ECC */ + chip->ecc.mode = NAND_ECC_SOFT; + chip->ecc.algo = NAND_ECC_HAMMING; + } + break; + + /* if SW ECC was chosen in DT, we do not need to set anything here */ + case NAND_ECC_SOFT: + break; + + /* should we also implement NAND_ECC_HW to do as the code above? */ + default: + return -EINVAL; + } + + /* calculate FMR Address Length field */ + al = 0; + if (chip->pagemask & 0xffff0000) + al++; + if (chip->pagemask & 0xff000000) + al++; + + priv->fmr |= al << FMR_AL_SHIFT; + + dev_dbg(priv->dev, "fsl_elbc_init: nand->numchips = %d\n", + nanddev_ntargets(&chip->base)); + dev_dbg(priv->dev, "fsl_elbc_init: nand->chipsize = %lld\n", + nanddev_target_size(&chip->base)); + dev_dbg(priv->dev, "fsl_elbc_init: nand->pagemask = %8x\n", + chip->pagemask); + dev_dbg(priv->dev, "fsl_elbc_init: nand->legacy.chip_delay = %d\n", + chip->legacy.chip_delay); + dev_dbg(priv->dev, "fsl_elbc_init: nand->badblockpos = %d\n", + chip->badblockpos); + dev_dbg(priv->dev, "fsl_elbc_init: nand->chip_shift = %d\n", + chip->chip_shift); + dev_dbg(priv->dev, "fsl_elbc_init: nand->page_shift = %d\n", + chip->page_shift); + dev_dbg(priv->dev, "fsl_elbc_init: nand->phys_erase_shift = %d\n", + chip->phys_erase_shift); + dev_dbg(priv->dev, "fsl_elbc_init: nand->ecc.mode = %d\n", + chip->ecc.mode); + dev_dbg(priv->dev, "fsl_elbc_init: nand->ecc.steps = %d\n", + chip->ecc.steps); + dev_dbg(priv->dev, "fsl_elbc_init: nand->ecc.bytes = %d\n", + chip->ecc.bytes); + dev_dbg(priv->dev, "fsl_elbc_init: nand->ecc.total = %d\n", + chip->ecc.total); + dev_dbg(priv->dev, "fsl_elbc_init: mtd->ooblayout = %p\n", + mtd->ooblayout); + dev_dbg(priv->dev, "fsl_elbc_init: mtd->flags = %08x\n", mtd->flags); + dev_dbg(priv->dev, "fsl_elbc_init: mtd->size = %lld\n", mtd->size); + dev_dbg(priv->dev, "fsl_elbc_init: mtd->erasesize = %d\n", + mtd->erasesize); + dev_dbg(priv->dev, "fsl_elbc_init: mtd->writesize = %d\n", + mtd->writesize); + dev_dbg(priv->dev, "fsl_elbc_init: mtd->oobsize = %d\n", + mtd->oobsize); + + /* adjust Option Register and ECC to match Flash page size */ + if (mtd->writesize == 512) { + priv->page_size = 0; + clrbits32(&lbc->bank[priv->bank].or, OR_FCM_PGS); + } else if (mtd->writesize == 2048) { + priv->page_size = 1; + setbits32(&lbc->bank[priv->bank].or, OR_FCM_PGS); } else { - /* otherwise fall back to default software ECC */ - chip->ecc.mode = NAND_ECC_SOFT; - chip->ecc.algo = NAND_ECC_HAMMING; + dev_err(priv->dev, + "fsl_elbc_init: page size %d is not supported\n", + mtd->writesize); + return -ENOTSUPP; } return 0; } +static const struct nand_controller_ops fsl_elbc_controller_ops = { + .attach_chip = fsl_elbc_attach_chip, +}; + static int fsl_elbc_chip_remove(struct fsl_elbc_mtd *priv) { struct fsl_elbc_fcm_ctrl *elbc_fcm_ctrl = priv->ctrl->nand; diff --git a/drivers/mtd/nand/raw/fsl_ifc_nand.c b/drivers/mtd/nand/raw/fsl_ifc_nand.c index e65d274399f9..04a3dcd675bf 100644 --- a/drivers/mtd/nand/raw/fsl_ifc_nand.c +++ b/drivers/mtd/nand/raw/fsl_ifc_nand.c @@ -722,9 +722,9 @@ static int fsl_ifc_attach_chip(struct nand_chip *chip) struct fsl_ifc_mtd *priv = nand_get_controller_data(chip); dev_dbg(priv->dev, "%s: nand->numchips = %d\n", __func__, - chip->numchips); + nanddev_ntargets(&chip->base)); dev_dbg(priv->dev, "%s: nand->chipsize = %lld\n", __func__, - chip->chipsize); + nanddev_target_size(&chip->base)); dev_dbg(priv->dev, "%s: nand->pagemask = %8x\n", __func__, chip->pagemask); dev_dbg(priv->dev, "%s: nand->legacy.chip_delay = %d\n", __func__, diff --git a/drivers/mtd/nand/raw/gpmi-nand/gpmi-lib.c b/drivers/mtd/nand/raw/gpmi-nand/gpmi-lib.c index a4768df5083f..a8b26d2e793c 100644 --- a/drivers/mtd/nand/raw/gpmi-nand/gpmi-lib.c +++ b/drivers/mtd/nand/raw/gpmi-nand/gpmi-lib.c @@ -157,8 +157,7 @@ int gpmi_init(struct gpmi_nand_data *this) * Reset BCH here, too. We got failures otherwise :( * See later BCH reset for explanation of MX23 and MX28 handling */ - ret = gpmi_reset_block(r->bch_regs, - GPMI_IS_MX23(this) || GPMI_IS_MX28(this)); + ret = gpmi_reset_block(r->bch_regs, GPMI_IS_MXS(this)); if (ret) goto err_out; @@ -266,8 +265,7 @@ int bch_set_geometry(struct gpmi_nand_data *this) * chip, otherwise it will lock up. So we skip resetting BCH on the MX23. * and MX28. */ - ret = gpmi_reset_block(r->bch_regs, - GPMI_IS_MX23(this) || GPMI_IS_MX28(this)); + ret = gpmi_reset_block(r->bch_regs, GPMI_IS_MXS(this)); if (ret) goto err_out; diff --git a/drivers/mtd/nand/raw/gpmi-nand/gpmi-nand.c b/drivers/mtd/nand/raw/gpmi-nand/gpmi-nand.c index ed405c9434fe..40df20d1adf5 100644 --- a/drivers/mtd/nand/raw/gpmi-nand/gpmi-nand.c +++ b/drivers/mtd/nand/raw/gpmi-nand/gpmi-nand.c @@ -171,7 +171,7 @@ static inline bool gpmi_check_ecc(struct gpmi_nand_data *this) struct bch_geometry *geo = &this->bch_geometry; /* Do the sanity check. */ - if (GPMI_IS_MX23(this) || GPMI_IS_MX28(this)) { + if (GPMI_IS_MXS(this)) { /* The mx23/mx28 only support the GF13. */ if (geo->gf_len == 14) return false; @@ -204,7 +204,8 @@ static int set_geometry_by_ecc_info(struct gpmi_nand_data *this, default: dev_err(this->dev, "unsupported nand chip. ecc bits : %d, ecc size : %d\n", - chip->ecc_strength_ds, chip->ecc_step_ds); + chip->base.eccreq.strength, + chip->base.eccreq.step_size); return -EINVAL; } geo->ecc_chunk_size = ecc_step; @@ -417,11 +418,13 @@ int common_nfc_set_geometry(struct gpmi_nand_data *this) if ((of_property_read_bool(this->dev->of_node, "fsl,use-minimum-ecc")) || legacy_set_geometry(this)) { - if (!(chip->ecc_strength_ds > 0 && chip->ecc_step_ds > 0)) + if (!(chip->base.eccreq.strength > 0 && + chip->base.eccreq.step_size > 0)) return -EINVAL; - return set_geometry_by_ecc_info(this, chip->ecc_strength_ds, - chip->ecc_step_ds); + return set_geometry_by_ecc_info(this, + chip->base.eccreq.strength, + chip->base.eccreq.step_size); } return 0; @@ -1602,7 +1605,7 @@ static int mx23_check_transcription_stamp(struct gpmi_nand_data *this) unsigned int search_area_size_in_strides; unsigned int stride; unsigned int page; - uint8_t *buffer = chip->data_buf; + u8 *buffer = nand_get_data_buf(chip); int saved_chip_number; int found_an_ncb_fingerprint = false; @@ -1664,7 +1667,7 @@ static int mx23_write_transcription_stamp(struct gpmi_nand_data *this) unsigned int block; unsigned int stride; unsigned int page; - uint8_t *buffer = chip->data_buf; + u8 *buffer = nand_get_data_buf(chip); int saved_chip_number; int status; @@ -1753,7 +1756,7 @@ static int mx23_boot_init(struct gpmi_nand_data *this) dev_dbg(dev, "Transcribing bad block marks...\n"); /* Compute the number of blocks in the entire medium. */ - block_count = chip->chipsize >> chip->phys_erase_shift; + block_count = nanddev_eraseblocks_per_target(&chip->base); /* * Loop over all the blocks in the medium, transcribing block marks as diff --git a/drivers/mtd/nand/raw/gpmi-nand/gpmi-nand.h b/drivers/mtd/nand/raw/gpmi-nand/gpmi-nand.h index d0b79bac2728..a804a4a5bd46 100644 --- a/drivers/mtd/nand/raw/gpmi-nand/gpmi-nand.h +++ b/drivers/mtd/nand/raw/gpmi-nand/gpmi-nand.h @@ -207,4 +207,5 @@ void gpmi_copy_bits(u8 *dst, size_t dst_bit_off, #define GPMI_IS_MX6(x) (GPMI_IS_MX6Q(x) || GPMI_IS_MX6SX(x) || \ GPMI_IS_MX7D(x)) +#define GPMI_IS_MXS(x) (GPMI_IS_MX23(x) || GPMI_IS_MX28(x)) #endif diff --git a/drivers/mtd/nand/raw/hisi504_nand.c b/drivers/mtd/nand/raw/hisi504_nand.c index f3f9aa160cff..e4526fff9da4 100644 --- a/drivers/mtd/nand/raw/hisi504_nand.c +++ b/drivers/mtd/nand/raw/hisi504_nand.c @@ -849,7 +849,7 @@ static int hisi_nfc_resume(struct device *dev) struct hinfc_host *host = dev_get_drvdata(dev); struct nand_chip *chip = &host->chip; - for (cs = 0; cs < chip->numchips; cs++) + for (cs = 0; cs < nanddev_ntargets(&chip->base); cs++) hisi_nfc_send_cmd_reset(host, cs); hinfc_write(host, SET_HINFC504_PWIDTH(HINFC504_W_LATCH, HINFC504_R_LATCH, HINFC504_RW_LATCH), HINFC504_PWIDTH); diff --git a/drivers/mtd/nand/raw/ingenic/Kconfig b/drivers/mtd/nand/raw/ingenic/Kconfig new file mode 100644 index 000000000000..7cfc77021154 --- /dev/null +++ b/drivers/mtd/nand/raw/ingenic/Kconfig @@ -0,0 +1,50 @@ +config MTD_NAND_JZ4740 + tristate "JZ4740 NAND controller" + depends on MACH_JZ4740 || COMPILE_TEST + depends on HAS_IOMEM + help + Enables support for NAND Flash on JZ4740 SoC based boards. + +config MTD_NAND_JZ4780 + tristate "JZ4780 NAND controller" + depends on JZ4780_NEMC + help + Enables support for NAND Flash connected to the NEMC on JZ4780 SoC + based boards, using the BCH controller for hardware error correction. + +if MTD_NAND_JZ4780 + +config MTD_NAND_INGENIC_ECC + tristate + +config MTD_NAND_JZ4740_ECC + tristate "Hardware BCH support for JZ4740 SoC" + select MTD_NAND_INGENIC_ECC + help + Enable this driver to support the Reed-Solomon error-correction + hardware present on the JZ4740 SoC from Ingenic. + + This driver can also be built as a module. If so, the module + will be called jz4740-ecc. + +config MTD_NAND_JZ4725B_BCH + tristate "Hardware BCH support for JZ4725B SoC" + select MTD_NAND_INGENIC_ECC + help + Enable this driver to support the BCH error-correction hardware + present on the JZ4725B SoC from Ingenic. + + This driver can also be built as a module. If so, the module + will be called jz4725b-bch. + +config MTD_NAND_JZ4780_BCH + tristate "Hardware BCH support for JZ4780 SoC" + select MTD_NAND_INGENIC_ECC + help + Enable this driver to support the BCH error-correction hardware + present on the JZ4780 SoC from Ingenic. + + This driver can also be built as a module. If so, the module + will be called jz4780-bch. + +endif # MTD_NAND_JZ4780 diff --git a/drivers/mtd/nand/raw/ingenic/Makefile b/drivers/mtd/nand/raw/ingenic/Makefile new file mode 100644 index 000000000000..ab2c5f47e5b7 --- /dev/null +++ b/drivers/mtd/nand/raw/ingenic/Makefile @@ -0,0 +1,7 @@ +obj-$(CONFIG_MTD_NAND_JZ4740) += jz4740_nand.o +obj-$(CONFIG_MTD_NAND_JZ4780) += ingenic_nand.o + +obj-$(CONFIG_MTD_NAND_INGENIC_ECC) += ingenic_ecc.o +obj-$(CONFIG_MTD_NAND_JZ4740_ECC) += jz4740_ecc.o +obj-$(CONFIG_MTD_NAND_JZ4725B_BCH) += jz4725b_bch.o +obj-$(CONFIG_MTD_NAND_JZ4780_BCH) += jz4780_bch.o diff --git a/drivers/mtd/nand/raw/ingenic/ingenic_ecc.c b/drivers/mtd/nand/raw/ingenic/ingenic_ecc.c new file mode 100644 index 000000000000..d3e085c5685a --- /dev/null +++ b/drivers/mtd/nand/raw/ingenic/ingenic_ecc.c @@ -0,0 +1,166 @@ +// SPDX-License-Identifier: GPL-2.0 +/* + * JZ47xx ECC common code + * + * Copyright (c) 2015 Imagination Technologies + * Author: Alex Smith <alex.smith@imgtec.com> + */ + +#include <linux/clk.h> +#include <linux/init.h> +#include <linux/module.h> +#include <linux/of_platform.h> +#include <linux/platform_device.h> + +#include "ingenic_ecc.h" + +/** + * ingenic_ecc_calculate() - calculate ECC for a data buffer + * @ecc: ECC device. + * @params: ECC parameters. + * @buf: input buffer with raw data. + * @ecc_code: output buffer with ECC. + * + * Return: 0 on success, -ETIMEDOUT if timed out while waiting for ECC + * controller. + */ +int ingenic_ecc_calculate(struct ingenic_ecc *ecc, + struct ingenic_ecc_params *params, + const u8 *buf, u8 *ecc_code) +{ + return ecc->ops->calculate(ecc, params, buf, ecc_code); +} +EXPORT_SYMBOL(ingenic_ecc_calculate); + +/** + * ingenic_ecc_correct() - detect and correct bit errors + * @ecc: ECC device. + * @params: ECC parameters. + * @buf: raw data read from the chip. + * @ecc_code: ECC read from the chip. + * + * Given the raw data and the ECC read from the NAND device, detects and + * corrects errors in the data. + * + * Return: the number of bit errors corrected, -EBADMSG if there are too many + * errors to correct or -ETIMEDOUT if we timed out waiting for the controller. + */ +int ingenic_ecc_correct(struct ingenic_ecc *ecc, + struct ingenic_ecc_params *params, + u8 *buf, u8 *ecc_code) +{ + return ecc->ops->correct(ecc, params, buf, ecc_code); +} +EXPORT_SYMBOL(ingenic_ecc_correct); + +/** + * ingenic_ecc_get() - get the ECC controller device + * @np: ECC device tree node. + * + * Gets the ECC controller device from the specified device tree node. The + * device must be released with ingenic_ecc_release() when it is no longer being + * used. + * + * Return: a pointer to ingenic_ecc, errors are encoded into the pointer. + * PTR_ERR(-EPROBE_DEFER) if the device hasn't been initialised yet. + */ +static struct ingenic_ecc *ingenic_ecc_get(struct device_node *np) +{ + struct platform_device *pdev; + struct ingenic_ecc *ecc; + + pdev = of_find_device_by_node(np); + if (!pdev || !platform_get_drvdata(pdev)) + return ERR_PTR(-EPROBE_DEFER); + + get_device(&pdev->dev); + + ecc = platform_get_drvdata(pdev); + clk_prepare_enable(ecc->clk); + + return ecc; +} + +/** + * of_ingenic_ecc_get() - get the ECC controller from a DT node + * @of_node: the node that contains an ecc-engine property. + * + * Get the ecc-engine property from the given device tree + * node and pass it to ingenic_ecc_get to do the work. + * + * Return: a pointer to ingenic_ecc, errors are encoded into the pointer. + * PTR_ERR(-EPROBE_DEFER) if the device hasn't been initialised yet. + */ +struct ingenic_ecc *of_ingenic_ecc_get(struct device_node *of_node) +{ + struct ingenic_ecc *ecc = NULL; + struct device_node *np; + + np = of_parse_phandle(of_node, "ecc-engine", 0); + + /* + * If the ecc-engine property is not found, check for the deprecated + * ingenic,bch-controller property + */ + if (!np) + np = of_parse_phandle(of_node, "ingenic,bch-controller", 0); + + if (np) { + ecc = ingenic_ecc_get(np); + of_node_put(np); + } + return ecc; +} +EXPORT_SYMBOL(of_ingenic_ecc_get); + +/** + * ingenic_ecc_release() - release the ECC controller device + * @ecc: ECC device. + */ +void ingenic_ecc_release(struct ingenic_ecc *ecc) +{ + clk_disable_unprepare(ecc->clk); + put_device(ecc->dev); +} +EXPORT_SYMBOL(ingenic_ecc_release); + +int ingenic_ecc_probe(struct platform_device *pdev) +{ + struct device *dev = &pdev->dev; + struct ingenic_ecc *ecc; + struct resource *res; + + ecc = devm_kzalloc(dev, sizeof(*ecc), GFP_KERNEL); + if (!ecc) + return -ENOMEM; + + ecc->ops = device_get_match_data(dev); + if (!ecc->ops) + return -EINVAL; + + res = platform_get_resource(pdev, IORESOURCE_MEM, 0); + ecc->base = devm_ioremap_resource(dev, res); + if (IS_ERR(ecc->base)) + return PTR_ERR(ecc->base); + + ecc->ops->disable(ecc); + + ecc->clk = devm_clk_get(dev, NULL); + if (IS_ERR(ecc->clk)) { + dev_err(dev, "failed to get clock: %ld\n", PTR_ERR(ecc->clk)); + return PTR_ERR(ecc->clk); + } + + mutex_init(&ecc->lock); + + ecc->dev = dev; + platform_set_drvdata(pdev, ecc); + + return 0; +} +EXPORT_SYMBOL(ingenic_ecc_probe); + +MODULE_AUTHOR("Alex Smith <alex@alex-smith.me.uk>"); +MODULE_AUTHOR("Harvey Hunt <harveyhuntnexus@gmail.com>"); +MODULE_DESCRIPTION("Ingenic ECC common driver"); +MODULE_LICENSE("GPL v2"); diff --git a/drivers/mtd/nand/raw/ingenic/ingenic_ecc.h b/drivers/mtd/nand/raw/ingenic/ingenic_ecc.h new file mode 100644 index 000000000000..2cda439b5e11 --- /dev/null +++ b/drivers/mtd/nand/raw/ingenic/ingenic_ecc.h @@ -0,0 +1,83 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +#ifndef __DRIVERS_MTD_NAND_INGENIC_ECC_INTERNAL_H__ +#define __DRIVERS_MTD_NAND_INGENIC_ECC_INTERNAL_H__ + +#include <linux/compiler_types.h> +#include <linux/err.h> +#include <linux/mutex.h> +#include <linux/types.h> +#include <uapi/asm-generic/errno-base.h> + +struct clk; +struct device; +struct ingenic_ecc; +struct platform_device; + +/** + * struct ingenic_ecc_params - ECC parameters + * @size: data bytes per ECC step. + * @bytes: ECC bytes per step. + * @strength: number of correctable bits per ECC step. + */ +struct ingenic_ecc_params { + int size; + int bytes; + int strength; +}; + +#if IS_ENABLED(CONFIG_MTD_NAND_INGENIC_ECC) +int ingenic_ecc_calculate(struct ingenic_ecc *ecc, + struct ingenic_ecc_params *params, + const u8 *buf, u8 *ecc_code); +int ingenic_ecc_correct(struct ingenic_ecc *ecc, + struct ingenic_ecc_params *params, u8 *buf, + u8 *ecc_code); + +void ingenic_ecc_release(struct ingenic_ecc *ecc); +struct ingenic_ecc *of_ingenic_ecc_get(struct device_node *np); +#else /* CONFIG_MTD_NAND_INGENIC_ECC */ +int ingenic_ecc_calculate(struct ingenic_ecc *ecc, + struct ingenic_ecc_params *params, + const u8 *buf, u8 *ecc_code) +{ + return -ENODEV; +} + +int ingenic_ecc_correct(struct ingenic_ecc *ecc, + struct ingenic_ecc_params *params, u8 *buf, + u8 *ecc_code) +{ + return -ENODEV; +} + +void ingenic_ecc_release(struct ingenic_ecc *ecc) +{ +} + +struct ingenic_ecc *of_ingenic_ecc_get(struct device_node *np) +{ + return ERR_PTR(-ENODEV); +} +#endif /* CONFIG_MTD_NAND_INGENIC_ECC */ + +struct ingenic_ecc_ops { + void (*disable)(struct ingenic_ecc *ecc); + int (*calculate)(struct ingenic_ecc *ecc, + struct ingenic_ecc_params *params, + const u8 *buf, u8 *ecc_code); + int (*correct)(struct ingenic_ecc *ecc, + struct ingenic_ecc_params *params, + u8 *buf, u8 *ecc_code); +}; + +struct ingenic_ecc { + struct device *dev; + const struct ingenic_ecc_ops *ops; + void __iomem *base; + struct clk *clk; + struct mutex lock; +}; + +int ingenic_ecc_probe(struct platform_device *pdev); + +#endif /* __DRIVERS_MTD_NAND_INGENIC_ECC_INTERNAL_H__ */ diff --git a/drivers/mtd/nand/raw/ingenic/ingenic_nand.c b/drivers/mtd/nand/raw/ingenic/ingenic_nand.c new file mode 100644 index 000000000000..d7b7c0f13909 --- /dev/null +++ b/drivers/mtd/nand/raw/ingenic/ingenic_nand.c @@ -0,0 +1,530 @@ +// SPDX-License-Identifier: GPL-2.0 +/* + * Ingenic JZ47xx NAND driver + * + * Copyright (c) 2015 Imagination Technologies + * Author: Alex Smith <alex.smith@imgtec.com> + */ + +#include <linux/delay.h> +#include <linux/init.h> +#include <linux/io.h> +#include <linux/list.h> +#include <linux/module.h> +#include <linux/of.h> +#include <linux/of_address.h> +#include <linux/of_device.h> +#include <linux/gpio/consumer.h> +#include <linux/platform_device.h> +#include <linux/slab.h> +#include <linux/mtd/mtd.h> +#include <linux/mtd/rawnand.h> +#include <linux/mtd/partitions.h> + +#include <linux/jz4780-nemc.h> + +#include "ingenic_ecc.h" + +#define DRV_NAME "ingenic-nand" + +/* Command delay when there is no R/B pin. */ +#define RB_DELAY_US 100 + +struct jz_soc_info { + unsigned long data_offset; + unsigned long addr_offset; + unsigned long cmd_offset; + const struct mtd_ooblayout_ops *oob_layout; +}; + +struct ingenic_nand_cs { + unsigned int bank; + void __iomem *base; +}; + +struct ingenic_nfc { + struct device *dev; + struct ingenic_ecc *ecc; + const struct jz_soc_info *soc_info; + struct nand_controller controller; + unsigned int num_banks; + struct list_head chips; + int selected; + struct ingenic_nand_cs cs[]; +}; + +struct ingenic_nand { + struct nand_chip chip; + struct list_head chip_list; + + struct gpio_desc *busy_gpio; + struct gpio_desc *wp_gpio; + unsigned int reading: 1; +}; + +static inline struct ingenic_nand *to_ingenic_nand(struct mtd_info *mtd) +{ + return container_of(mtd_to_nand(mtd), struct ingenic_nand, chip); +} + +static inline struct ingenic_nfc *to_ingenic_nfc(struct nand_controller *ctrl) +{ + return container_of(ctrl, struct ingenic_nfc, controller); +} + +static int qi_lb60_ooblayout_ecc(struct mtd_info *mtd, int section, + struct mtd_oob_region *oobregion) +{ + struct nand_chip *chip = mtd_to_nand(mtd); + struct nand_ecc_ctrl *ecc = &chip->ecc; + + if (section || !ecc->total) + return -ERANGE; + + oobregion->length = ecc->total; + oobregion->offset = 12; + + return 0; +} + +static int qi_lb60_ooblayout_free(struct mtd_info *mtd, int section, + struct mtd_oob_region *oobregion) +{ + struct nand_chip *chip = mtd_to_nand(mtd); + struct nand_ecc_ctrl *ecc = &chip->ecc; + + if (section) + return -ERANGE; + + oobregion->length = mtd->oobsize - ecc->total - 12; + oobregion->offset = 12 + ecc->total; + + return 0; +} + +const struct mtd_ooblayout_ops qi_lb60_ooblayout_ops = { + .ecc = qi_lb60_ooblayout_ecc, + .free = qi_lb60_ooblayout_free, +}; + +static int jz4725b_ooblayout_ecc(struct mtd_info *mtd, int section, + struct mtd_oob_region *oobregion) +{ + struct nand_chip *chip = mtd_to_nand(mtd); + struct nand_ecc_ctrl *ecc = &chip->ecc; + + if (section || !ecc->total) + return -ERANGE; + + oobregion->length = ecc->total; + oobregion->offset = 3; + + return 0; +} + +static int jz4725b_ooblayout_free(struct mtd_info *mtd, int section, + struct mtd_oob_region *oobregion) +{ + struct nand_chip *chip = mtd_to_nand(mtd); + struct nand_ecc_ctrl *ecc = &chip->ecc; + + if (section) + return -ERANGE; + + oobregion->length = mtd->oobsize - ecc->total - 3; + oobregion->offset = 3 + ecc->total; + + return 0; +} + +static const struct mtd_ooblayout_ops jz4725b_ooblayout_ops = { + .ecc = jz4725b_ooblayout_ecc, + .free = jz4725b_ooblayout_free, +}; + +static void ingenic_nand_select_chip(struct nand_chip *chip, int chipnr) +{ + struct ingenic_nand *nand = to_ingenic_nand(nand_to_mtd(chip)); + struct ingenic_nfc *nfc = to_ingenic_nfc(nand->chip.controller); + struct ingenic_nand_cs *cs; + + /* Ensure the currently selected chip is deasserted. */ + if (chipnr == -1 && nfc->selected >= 0) { + cs = &nfc->cs[nfc->selected]; + jz4780_nemc_assert(nfc->dev, cs->bank, false); + } + + nfc->selected = chipnr; +} + +static void ingenic_nand_cmd_ctrl(struct nand_chip *chip, int cmd, + unsigned int ctrl) +{ + struct ingenic_nand *nand = to_ingenic_nand(nand_to_mtd(chip)); + struct ingenic_nfc *nfc = to_ingenic_nfc(nand->chip.controller); + struct ingenic_nand_cs *cs; + + if (WARN_ON(nfc->selected < 0)) + return; + + cs = &nfc->cs[nfc->selected]; + + jz4780_nemc_assert(nfc->dev, cs->bank, ctrl & NAND_NCE); + + if (cmd == NAND_CMD_NONE) + return; + + if (ctrl & NAND_ALE) + writeb(cmd, cs->base + nfc->soc_info->addr_offset); + else if (ctrl & NAND_CLE) + writeb(cmd, cs->base + nfc->soc_info->cmd_offset); +} + +static int ingenic_nand_dev_ready(struct nand_chip *chip) +{ + struct ingenic_nand *nand = to_ingenic_nand(nand_to_mtd(chip)); + + return !gpiod_get_value_cansleep(nand->busy_gpio); +} + +static void ingenic_nand_ecc_hwctl(struct nand_chip *chip, int mode) +{ + struct ingenic_nand *nand = to_ingenic_nand(nand_to_mtd(chip)); + + nand->reading = (mode == NAND_ECC_READ); +} + +static int ingenic_nand_ecc_calculate(struct nand_chip *chip, const u8 *dat, + u8 *ecc_code) +{ + struct ingenic_nand *nand = to_ingenic_nand(nand_to_mtd(chip)); + struct ingenic_nfc *nfc = to_ingenic_nfc(nand->chip.controller); + struct ingenic_ecc_params params; + + /* + * Don't need to generate the ECC when reading, the ECC engine does it + * for us as part of decoding/correction. + */ + if (nand->reading) + return 0; + + params.size = nand->chip.ecc.size; + params.bytes = nand->chip.ecc.bytes; + params.strength = nand->chip.ecc.strength; + + return ingenic_ecc_calculate(nfc->ecc, ¶ms, dat, ecc_code); +} + +static int ingenic_nand_ecc_correct(struct nand_chip *chip, u8 *dat, + u8 *read_ecc, u8 *calc_ecc) +{ + struct ingenic_nand *nand = to_ingenic_nand(nand_to_mtd(chip)); + struct ingenic_nfc *nfc = to_ingenic_nfc(nand->chip.controller); + struct ingenic_ecc_params params; + + params.size = nand->chip.ecc.size; + params.bytes = nand->chip.ecc.bytes; + params.strength = nand->chip.ecc.strength; + + return ingenic_ecc_correct(nfc->ecc, ¶ms, dat, read_ecc); +} + +static int ingenic_nand_attach_chip(struct nand_chip *chip) +{ + struct mtd_info *mtd = nand_to_mtd(chip); + struct ingenic_nfc *nfc = to_ingenic_nfc(chip->controller); + int eccbytes; + + if (chip->ecc.strength == 4) { + /* JZ4740 uses 9 bytes of ECC to correct maximum 4 errors */ + chip->ecc.bytes = 9; + } else { + chip->ecc.bytes = fls((1 + 8) * chip->ecc.size) * + (chip->ecc.strength / 8); + } + + switch (chip->ecc.mode) { + case NAND_ECC_HW: + if (!nfc->ecc) { + dev_err(nfc->dev, "HW ECC selected, but ECC controller not found\n"); + return -ENODEV; + } + + chip->ecc.hwctl = ingenic_nand_ecc_hwctl; + chip->ecc.calculate = ingenic_nand_ecc_calculate; + chip->ecc.correct = ingenic_nand_ecc_correct; + /* fall through */ + case NAND_ECC_SOFT: + dev_info(nfc->dev, "using %s (strength %d, size %d, bytes %d)\n", + (nfc->ecc) ? "hardware ECC" : "software ECC", + chip->ecc.strength, chip->ecc.size, chip->ecc.bytes); + break; + case NAND_ECC_NONE: + dev_info(nfc->dev, "not using ECC\n"); + break; + default: + dev_err(nfc->dev, "ECC mode %d not supported\n", + chip->ecc.mode); + return -EINVAL; + } + + /* The NAND core will generate the ECC layout for SW ECC */ + if (chip->ecc.mode != NAND_ECC_HW) + return 0; + + /* Generate ECC layout. ECC codes are right aligned in the OOB area. */ + eccbytes = mtd->writesize / chip->ecc.size * chip->ecc.bytes; + + if (eccbytes > mtd->oobsize - 2) { + dev_err(nfc->dev, + "invalid ECC config: required %d ECC bytes, but only %d are available", + eccbytes, mtd->oobsize - 2); + return -EINVAL; + } + + /* + * The generic layout for BBT markers will most likely overlap with our + * ECC bytes in the OOB, so move the BBT markers outside the OOB area. + */ + if (chip->bbt_options & NAND_BBT_USE_FLASH) + chip->bbt_options |= NAND_BBT_NO_OOB; + + /* For legacy reasons we use a different layout on the qi,lb60 board. */ + if (of_machine_is_compatible("qi,lb60")) + mtd_set_ooblayout(mtd, &qi_lb60_ooblayout_ops); + else + mtd_set_ooblayout(mtd, nfc->soc_info->oob_layout); + + return 0; +} + +static const struct nand_controller_ops ingenic_nand_controller_ops = { + .attach_chip = ingenic_nand_attach_chip, +}; + +static int ingenic_nand_init_chip(struct platform_device *pdev, + struct ingenic_nfc *nfc, + struct device_node *np, + unsigned int chipnr) +{ + struct device *dev = &pdev->dev; + struct ingenic_nand *nand; + struct ingenic_nand_cs *cs; + struct resource *res; + struct nand_chip *chip; + struct mtd_info *mtd; + const __be32 *reg; + int ret = 0; + + cs = &nfc->cs[chipnr]; + + reg = of_get_property(np, "reg", NULL); + if (!reg) + return -EINVAL; + + cs->bank = be32_to_cpu(*reg); + + jz4780_nemc_set_type(nfc->dev, cs->bank, JZ4780_NEMC_BANK_NAND); + + res = platform_get_resource(pdev, IORESOURCE_MEM, chipnr); + cs->base = devm_ioremap_resource(dev, res); + if (IS_ERR(cs->base)) + return PTR_ERR(cs->base); + + nand = devm_kzalloc(dev, sizeof(*nand), GFP_KERNEL); + if (!nand) + return -ENOMEM; + + nand->busy_gpio = devm_gpiod_get_optional(dev, "rb", GPIOD_IN); + + if (IS_ERR(nand->busy_gpio)) { + ret = PTR_ERR(nand->busy_gpio); + dev_err(dev, "failed to request busy GPIO: %d\n", ret); + return ret; + } else if (nand->busy_gpio) { + nand->chip.legacy.dev_ready = ingenic_nand_dev_ready; + } + + nand->wp_gpio = devm_gpiod_get_optional(dev, "wp", GPIOD_OUT_LOW); + + if (IS_ERR(nand->wp_gpio)) { + ret = PTR_ERR(nand->wp_gpio); + dev_err(dev, "failed to request WP GPIO: %d\n", ret); + return ret; + } + + chip = &nand->chip; + mtd = nand_to_mtd(chip); + mtd->name = devm_kasprintf(dev, GFP_KERNEL, "%s.%d", dev_name(dev), + cs->bank); + if (!mtd->name) + return -ENOMEM; + mtd->dev.parent = dev; + + chip->legacy.IO_ADDR_R = cs->base + nfc->soc_info->data_offset; + chip->legacy.IO_ADDR_W = cs->base + nfc->soc_info->data_offset; + chip->legacy.chip_delay = RB_DELAY_US; + chip->options = NAND_NO_SUBPAGE_WRITE; + chip->legacy.select_chip = ingenic_nand_select_chip; + chip->legacy.cmd_ctrl = ingenic_nand_cmd_ctrl; + chip->ecc.mode = NAND_ECC_HW; + chip->controller = &nfc->controller; + nand_set_flash_node(chip, np); + + chip->controller->ops = &ingenic_nand_controller_ops; + ret = nand_scan(chip, 1); + if (ret) + return ret; + + ret = mtd_device_register(mtd, NULL, 0); + if (ret) { + nand_release(chip); + return ret; + } + + list_add_tail(&nand->chip_list, &nfc->chips); + + return 0; +} + +static void ingenic_nand_cleanup_chips(struct ingenic_nfc *nfc) +{ + struct ingenic_nand *chip; + + while (!list_empty(&nfc->chips)) { + chip = list_first_entry(&nfc->chips, + struct ingenic_nand, chip_list); + nand_release(&chip->chip); + list_del(&chip->chip_list); + } +} + +static int ingenic_nand_init_chips(struct ingenic_nfc *nfc, + struct platform_device *pdev) +{ + struct device *dev = &pdev->dev; + struct device_node *np; + int i = 0; + int ret; + int num_chips = of_get_child_count(dev->of_node); + + if (num_chips > nfc->num_banks) { + dev_err(dev, "found %d chips but only %d banks\n", + num_chips, nfc->num_banks); + return -EINVAL; + } + + for_each_child_of_node(dev->of_node, np) { + ret = ingenic_nand_init_chip(pdev, nfc, np, i); + if (ret) { + ingenic_nand_cleanup_chips(nfc); + return ret; + } + + i++; + } + + return 0; +} + +static int ingenic_nand_probe(struct platform_device *pdev) +{ + struct device *dev = &pdev->dev; + unsigned int num_banks; + struct ingenic_nfc *nfc; + int ret; + + num_banks = jz4780_nemc_num_banks(dev); + if (num_banks == 0) { + dev_err(dev, "no banks found\n"); + return -ENODEV; + } + + nfc = devm_kzalloc(dev, struct_size(nfc, cs, num_banks), GFP_KERNEL); + if (!nfc) + return -ENOMEM; + + nfc->soc_info = device_get_match_data(dev); + if (!nfc->soc_info) + return -EINVAL; + + /* + * Check for ECC HW before we call nand_scan_ident, to prevent us from + * having to call it again if the ECC driver returns -EPROBE_DEFER. + */ + nfc->ecc = of_ingenic_ecc_get(dev->of_node); + if (IS_ERR(nfc->ecc)) + return PTR_ERR(nfc->ecc); + + nfc->dev = dev; + nfc->num_banks = num_banks; + + nand_controller_init(&nfc->controller); + INIT_LIST_HEAD(&nfc->chips); + + ret = ingenic_nand_init_chips(nfc, pdev); + if (ret) { + if (nfc->ecc) + ingenic_ecc_release(nfc->ecc); + return ret; + } + + platform_set_drvdata(pdev, nfc); + return 0; +} + +static int ingenic_nand_remove(struct platform_device *pdev) +{ + struct ingenic_nfc *nfc = platform_get_drvdata(pdev); + + if (nfc->ecc) + ingenic_ecc_release(nfc->ecc); + + ingenic_nand_cleanup_chips(nfc); + + return 0; +} + +static const struct jz_soc_info jz4740_soc_info = { + .data_offset = 0x00000000, + .cmd_offset = 0x00008000, + .addr_offset = 0x00010000, + .oob_layout = &nand_ooblayout_lp_ops, +}; + +static const struct jz_soc_info jz4725b_soc_info = { + .data_offset = 0x00000000, + .cmd_offset = 0x00008000, + .addr_offset = 0x00010000, + .oob_layout = &jz4725b_ooblayout_ops, +}; + +static const struct jz_soc_info jz4780_soc_info = { + .data_offset = 0x00000000, + .cmd_offset = 0x00400000, + .addr_offset = 0x00800000, + .oob_layout = &nand_ooblayout_lp_ops, +}; + +static const struct of_device_id ingenic_nand_dt_match[] = { + { .compatible = "ingenic,jz4740-nand", .data = &jz4740_soc_info }, + { .compatible = "ingenic,jz4725b-nand", .data = &jz4725b_soc_info }, + { .compatible = "ingenic,jz4780-nand", .data = &jz4780_soc_info }, + {}, +}; +MODULE_DEVICE_TABLE(of, ingenic_nand_dt_match); + +static struct platform_driver ingenic_nand_driver = { + .probe = ingenic_nand_probe, + .remove = ingenic_nand_remove, + .driver = { + .name = DRV_NAME, + .of_match_table = of_match_ptr(ingenic_nand_dt_match), + }, +}; +module_platform_driver(ingenic_nand_driver); + +MODULE_AUTHOR("Alex Smith <alex@alex-smith.me.uk>"); +MODULE_AUTHOR("Harvey Hunt <harveyhuntnexus@gmail.com>"); +MODULE_DESCRIPTION("Ingenic JZ47xx NAND driver"); +MODULE_LICENSE("GPL v2"); diff --git a/drivers/mtd/nand/raw/ingenic/jz4725b_bch.c b/drivers/mtd/nand/raw/ingenic/jz4725b_bch.c new file mode 100644 index 000000000000..6c852eae09cf --- /dev/null +++ b/drivers/mtd/nand/raw/ingenic/jz4725b_bch.c @@ -0,0 +1,295 @@ +// SPDX-License-Identifier: GPL-2.0 +/* + * JZ4725B BCH controller driver + * + * Copyright (C) 2019 Paul Cercueil <paul@crapouillou.net> + * + * Based on jz4780_bch.c + */ + +#include <linux/bitops.h> +#include <linux/device.h> +#include <linux/io.h> +#include <linux/iopoll.h> +#include <linux/module.h> +#include <linux/mutex.h> +#include <linux/of_platform.h> +#include <linux/platform_device.h> + +#include "ingenic_ecc.h" + +#define BCH_BHCR 0x0 +#define BCH_BHCSR 0x4 +#define BCH_BHCCR 0x8 +#define BCH_BHCNT 0xc +#define BCH_BHDR 0x10 +#define BCH_BHPAR0 0x14 +#define BCH_BHERR0 0x28 +#define BCH_BHINT 0x24 +#define BCH_BHINTES 0x3c +#define BCH_BHINTEC 0x40 +#define BCH_BHINTE 0x38 + +#define BCH_BHCR_ENCE BIT(3) +#define BCH_BHCR_BSEL BIT(2) +#define BCH_BHCR_INIT BIT(1) +#define BCH_BHCR_BCHE BIT(0) + +#define BCH_BHCNT_DEC_COUNT_SHIFT 16 +#define BCH_BHCNT_DEC_COUNT_MASK (0x3ff << BCH_BHCNT_DEC_COUNT_SHIFT) +#define BCH_BHCNT_ENC_COUNT_SHIFT 0 +#define BCH_BHCNT_ENC_COUNT_MASK (0x3ff << BCH_BHCNT_ENC_COUNT_SHIFT) + +#define BCH_BHERR_INDEX0_SHIFT 0 +#define BCH_BHERR_INDEX0_MASK (0x1fff << BCH_BHERR_INDEX0_SHIFT) +#define BCH_BHERR_INDEX1_SHIFT 16 +#define BCH_BHERR_INDEX1_MASK (0x1fff << BCH_BHERR_INDEX1_SHIFT) + +#define BCH_BHINT_ERRC_SHIFT 28 +#define BCH_BHINT_ERRC_MASK (0xf << BCH_BHINT_ERRC_SHIFT) +#define BCH_BHINT_TERRC_SHIFT 16 +#define BCH_BHINT_TERRC_MASK (0x7f << BCH_BHINT_TERRC_SHIFT) +#define BCH_BHINT_ALL_0 BIT(5) +#define BCH_BHINT_ALL_F BIT(4) +#define BCH_BHINT_DECF BIT(3) +#define BCH_BHINT_ENCF BIT(2) +#define BCH_BHINT_UNCOR BIT(1) +#define BCH_BHINT_ERR BIT(0) + +/* Timeout for BCH calculation/correction. */ +#define BCH_TIMEOUT_US 100000 + +static inline void jz4725b_bch_config_set(struct ingenic_ecc *bch, u32 cfg) +{ + writel(cfg, bch->base + BCH_BHCSR); +} + +static inline void jz4725b_bch_config_clear(struct ingenic_ecc *bch, u32 cfg) +{ + writel(cfg, bch->base + BCH_BHCCR); +} + +static int jz4725b_bch_reset(struct ingenic_ecc *bch, + struct ingenic_ecc_params *params, bool calc_ecc) +{ + u32 reg, max_value; + + /* Clear interrupt status. */ + writel(readl(bch->base + BCH_BHINT), bch->base + BCH_BHINT); + + /* Initialise and enable BCH. */ + jz4725b_bch_config_clear(bch, 0x1f); + jz4725b_bch_config_set(bch, BCH_BHCR_BCHE); + + if (params->strength == 8) + jz4725b_bch_config_set(bch, BCH_BHCR_BSEL); + else + jz4725b_bch_config_clear(bch, BCH_BHCR_BSEL); + + if (calc_ecc) /* calculate ECC from data */ + jz4725b_bch_config_set(bch, BCH_BHCR_ENCE); + else /* correct data from ECC */ + jz4725b_bch_config_clear(bch, BCH_BHCR_ENCE); + + jz4725b_bch_config_set(bch, BCH_BHCR_INIT); + + max_value = BCH_BHCNT_ENC_COUNT_MASK >> BCH_BHCNT_ENC_COUNT_SHIFT; + if (params->size > max_value) + return -EINVAL; + + max_value = BCH_BHCNT_DEC_COUNT_MASK >> BCH_BHCNT_DEC_COUNT_SHIFT; + if (params->size + params->bytes > max_value) + return -EINVAL; + + /* Set up BCH count register. */ + reg = params->size << BCH_BHCNT_ENC_COUNT_SHIFT; + reg |= (params->size + params->bytes) << BCH_BHCNT_DEC_COUNT_SHIFT; + writel(reg, bch->base + BCH_BHCNT); + + return 0; +} + +static void jz4725b_bch_disable(struct ingenic_ecc *bch) +{ + /* Clear interrupts */ + writel(readl(bch->base + BCH_BHINT), bch->base + BCH_BHINT); + + /* Disable the hardware */ + jz4725b_bch_config_clear(bch, BCH_BHCR_BCHE); +} + +static void jz4725b_bch_write_data(struct ingenic_ecc *bch, const u8 *buf, + size_t size) +{ + while (size--) + writeb(*buf++, bch->base + BCH_BHDR); +} + +static void jz4725b_bch_read_parity(struct ingenic_ecc *bch, u8 *buf, + size_t size) +{ + size_t size32 = size / sizeof(u32); + size_t size8 = size % sizeof(u32); + u32 *dest32; + u8 *dest8; + u32 val, offset = 0; + + dest32 = (u32 *)buf; + while (size32--) { + *dest32++ = readl_relaxed(bch->base + BCH_BHPAR0 + offset); + offset += sizeof(u32); + } + + dest8 = (u8 *)dest32; + val = readl_relaxed(bch->base + BCH_BHPAR0 + offset); + switch (size8) { + case 3: + dest8[2] = (val >> 16) & 0xff; + /* fall-through */ + case 2: + dest8[1] = (val >> 8) & 0xff; + /* fall-through */ + case 1: + dest8[0] = val & 0xff; + break; + } +} + +static int jz4725b_bch_wait_complete(struct ingenic_ecc *bch, unsigned int irq, + u32 *status) +{ + u32 reg; + int ret; + + /* + * While we could use interrupts here and sleep until the operation + * completes, the controller works fairly quickly (usually a few + * microseconds) and so the overhead of sleeping until we get an + * interrupt quite noticeably decreases performance. + */ + ret = readl_relaxed_poll_timeout(bch->base + BCH_BHINT, reg, + reg & irq, 0, BCH_TIMEOUT_US); + if (ret) + return ret; + + if (status) + *status = reg; + + writel(reg, bch->base + BCH_BHINT); + + return 0; +} + +static int jz4725b_calculate(struct ingenic_ecc *bch, + struct ingenic_ecc_params *params, + const u8 *buf, u8 *ecc_code) +{ + int ret; + + mutex_lock(&bch->lock); + + ret = jz4725b_bch_reset(bch, params, true); + if (ret) { + dev_err(bch->dev, "Unable to init BCH with given parameters\n"); + goto out_disable; + } + + jz4725b_bch_write_data(bch, buf, params->size); + + ret = jz4725b_bch_wait_complete(bch, BCH_BHINT_ENCF, NULL); + if (ret) { + dev_err(bch->dev, "timed out while calculating ECC\n"); + goto out_disable; + } + + jz4725b_bch_read_parity(bch, ecc_code, params->bytes); + +out_disable: + jz4725b_bch_disable(bch); + mutex_unlock(&bch->lock); + + return ret; +} + +static int jz4725b_correct(struct ingenic_ecc *bch, + struct ingenic_ecc_params *params, + u8 *buf, u8 *ecc_code) +{ + u32 reg, errors, bit; + unsigned int i; + int ret; + + mutex_lock(&bch->lock); + + ret = jz4725b_bch_reset(bch, params, false); + if (ret) { + dev_err(bch->dev, "Unable to init BCH with given parameters\n"); + goto out; + } + + jz4725b_bch_write_data(bch, buf, params->size); + jz4725b_bch_write_data(bch, ecc_code, params->bytes); + + ret = jz4725b_bch_wait_complete(bch, BCH_BHINT_DECF, ®); + if (ret) { + dev_err(bch->dev, "timed out while correcting data\n"); + goto out; + } + + if (reg & (BCH_BHINT_ALL_F | BCH_BHINT_ALL_0)) { + /* Data and ECC is all 0xff or 0x00 - nothing to correct */ + ret = 0; + goto out; + } + + if (reg & BCH_BHINT_UNCOR) { + /* Uncorrectable ECC error */ + ret = -EBADMSG; + goto out; + } + + errors = (reg & BCH_BHINT_ERRC_MASK) >> BCH_BHINT_ERRC_SHIFT; + + /* Correct any detected errors. */ + for (i = 0; i < errors; i++) { + if (i & 1) { + bit = (reg & BCH_BHERR_INDEX1_MASK) >> BCH_BHERR_INDEX1_SHIFT; + } else { + reg = readl(bch->base + BCH_BHERR0 + (i * 4)); + bit = (reg & BCH_BHERR_INDEX0_MASK) >> BCH_BHERR_INDEX0_SHIFT; + } + + buf[(bit >> 3)] ^= BIT(bit & 0x7); + } + +out: + jz4725b_bch_disable(bch); + mutex_unlock(&bch->lock); + + return ret; +} + +static const struct ingenic_ecc_ops jz4725b_bch_ops = { + .disable = jz4725b_bch_disable, + .calculate = jz4725b_calculate, + .correct = jz4725b_correct, +}; + +static const struct of_device_id jz4725b_bch_dt_match[] = { + { .compatible = "ingenic,jz4725b-bch", .data = &jz4725b_bch_ops }, + {}, +}; +MODULE_DEVICE_TABLE(of, jz4725b_bch_dt_match); + +static struct platform_driver jz4725b_bch_driver = { + .probe = ingenic_ecc_probe, + .driver = { + .name = "jz4725b-bch", + .of_match_table = jz4725b_bch_dt_match, + }, +}; +module_platform_driver(jz4725b_bch_driver); + +MODULE_AUTHOR("Paul Cercueil <paul@crapouillou.net>"); +MODULE_DESCRIPTION("Ingenic JZ4725B BCH controller driver"); +MODULE_LICENSE("GPL v2"); diff --git a/drivers/mtd/nand/raw/ingenic/jz4740_ecc.c b/drivers/mtd/nand/raw/ingenic/jz4740_ecc.c new file mode 100644 index 000000000000..13fea645c7f0 --- /dev/null +++ b/drivers/mtd/nand/raw/ingenic/jz4740_ecc.c @@ -0,0 +1,197 @@ +// SPDX-License-Identifier: GPL-2.0 +/* + * JZ4740 ECC controller driver + * + * Copyright (c) 2019 Paul Cercueil <paul@crapouillou.net> + * + * based on jz4740-nand.c + */ + +#include <linux/bitops.h> +#include <linux/device.h> +#include <linux/io.h> +#include <linux/module.h> +#include <linux/of_platform.h> +#include <linux/platform_device.h> + +#include "ingenic_ecc.h" + +#define JZ_REG_NAND_ECC_CTRL 0x00 +#define JZ_REG_NAND_DATA 0x04 +#define JZ_REG_NAND_PAR0 0x08 +#define JZ_REG_NAND_PAR1 0x0C +#define JZ_REG_NAND_PAR2 0x10 +#define JZ_REG_NAND_IRQ_STAT 0x14 +#define JZ_REG_NAND_IRQ_CTRL 0x18 +#define JZ_REG_NAND_ERR(x) (0x1C + ((x) << 2)) + +#define JZ_NAND_ECC_CTRL_PAR_READY BIT(4) +#define JZ_NAND_ECC_CTRL_ENCODING BIT(3) +#define JZ_NAND_ECC_CTRL_RS BIT(2) +#define JZ_NAND_ECC_CTRL_RESET BIT(1) +#define JZ_NAND_ECC_CTRL_ENABLE BIT(0) + +#define JZ_NAND_STATUS_ERR_COUNT (BIT(31) | BIT(30) | BIT(29)) +#define JZ_NAND_STATUS_PAD_FINISH BIT(4) +#define JZ_NAND_STATUS_DEC_FINISH BIT(3) +#define JZ_NAND_STATUS_ENC_FINISH BIT(2) +#define JZ_NAND_STATUS_UNCOR_ERROR BIT(1) +#define JZ_NAND_STATUS_ERROR BIT(0) + +static const uint8_t empty_block_ecc[] = { + 0xcd, 0x9d, 0x90, 0x58, 0xf4, 0x8b, 0xff, 0xb7, 0x6f +}; + +static void jz4740_ecc_reset(struct ingenic_ecc *ecc, bool calc_ecc) +{ + uint32_t reg; + + /* Clear interrupt status */ + writel(0, ecc->base + JZ_REG_NAND_IRQ_STAT); + + /* Initialize and enable ECC hardware */ + reg = readl(ecc->base + JZ_REG_NAND_ECC_CTRL); + reg |= JZ_NAND_ECC_CTRL_RESET; + reg |= JZ_NAND_ECC_CTRL_ENABLE; + reg |= JZ_NAND_ECC_CTRL_RS; + if (calc_ecc) /* calculate ECC from data */ + reg |= JZ_NAND_ECC_CTRL_ENCODING; + else /* correct data from ECC */ + reg &= ~JZ_NAND_ECC_CTRL_ENCODING; + + writel(reg, ecc->base + JZ_REG_NAND_ECC_CTRL); +} + +static int jz4740_ecc_calculate(struct ingenic_ecc *ecc, + struct ingenic_ecc_params *params, + const u8 *buf, u8 *ecc_code) +{ + uint32_t reg, status; + unsigned int timeout = 1000; + int i; + + jz4740_ecc_reset(ecc, true); + + do { + status = readl(ecc->base + JZ_REG_NAND_IRQ_STAT); + } while (!(status & JZ_NAND_STATUS_ENC_FINISH) && --timeout); + + if (timeout == 0) + return -ETIMEDOUT; + + reg = readl(ecc->base + JZ_REG_NAND_ECC_CTRL); + reg &= ~JZ_NAND_ECC_CTRL_ENABLE; + writel(reg, ecc->base + JZ_REG_NAND_ECC_CTRL); + + for (i = 0; i < params->bytes; ++i) + ecc_code[i] = readb(ecc->base + JZ_REG_NAND_PAR0 + i); + + /* + * If the written data is completely 0xff, we also want to write 0xff as + * ECC, otherwise we will get in trouble when doing subpage writes. + */ + if (memcmp(ecc_code, empty_block_ecc, ARRAY_SIZE(empty_block_ecc)) == 0) + memset(ecc_code, 0xff, ARRAY_SIZE(empty_block_ecc)); + + return 0; +} + +static void jz_nand_correct_data(uint8_t *buf, int index, int mask) +{ + int offset = index & 0x7; + uint16_t data; + + index += (index >> 3); + + data = buf[index]; + data |= buf[index + 1] << 8; + + mask ^= (data >> offset) & 0x1ff; + data &= ~(0x1ff << offset); + data |= (mask << offset); + + buf[index] = data & 0xff; + buf[index + 1] = (data >> 8) & 0xff; +} + +static int jz4740_ecc_correct(struct ingenic_ecc *ecc, + struct ingenic_ecc_params *params, + u8 *buf, u8 *ecc_code) +{ + int i, error_count, index; + uint32_t reg, status, error; + unsigned int timeout = 1000; + + jz4740_ecc_reset(ecc, false); + + for (i = 0; i < params->bytes; ++i) + writeb(ecc_code[i], ecc->base + JZ_REG_NAND_PAR0 + i); + + reg = readl(ecc->base + JZ_REG_NAND_ECC_CTRL); + reg |= JZ_NAND_ECC_CTRL_PAR_READY; + writel(reg, ecc->base + JZ_REG_NAND_ECC_CTRL); + + do { + status = readl(ecc->base + JZ_REG_NAND_IRQ_STAT); + } while (!(status & JZ_NAND_STATUS_DEC_FINISH) && --timeout); + + if (timeout == 0) + return -ETIMEDOUT; + + reg = readl(ecc->base + JZ_REG_NAND_ECC_CTRL); + reg &= ~JZ_NAND_ECC_CTRL_ENABLE; + writel(reg, ecc->base + JZ_REG_NAND_ECC_CTRL); + + if (status & JZ_NAND_STATUS_ERROR) { + if (status & JZ_NAND_STATUS_UNCOR_ERROR) + return -EBADMSG; + + error_count = (status & JZ_NAND_STATUS_ERR_COUNT) >> 29; + + for (i = 0; i < error_count; ++i) { + error = readl(ecc->base + JZ_REG_NAND_ERR(i)); + index = ((error >> 16) & 0x1ff) - 1; + if (index >= 0 && index < params->size) + jz_nand_correct_data(buf, index, error & 0x1ff); + } + + return error_count; + } + + return 0; +} + +static void jz4740_ecc_disable(struct ingenic_ecc *ecc) +{ + u32 reg; + + writel(0, ecc->base + JZ_REG_NAND_IRQ_STAT); + reg = readl(ecc->base + JZ_REG_NAND_ECC_CTRL); + reg &= ~JZ_NAND_ECC_CTRL_ENABLE; + writel(reg, ecc->base + JZ_REG_NAND_ECC_CTRL); +} + +static const struct ingenic_ecc_ops jz4740_ecc_ops = { + .disable = jz4740_ecc_disable, + .calculate = jz4740_ecc_calculate, + .correct = jz4740_ecc_correct, +}; + +static const struct of_device_id jz4740_ecc_dt_match[] = { + { .compatible = "ingenic,jz4740-ecc", .data = &jz4740_ecc_ops }, + {}, +}; +MODULE_DEVICE_TABLE(of, jz4740_ecc_dt_match); + +static struct platform_driver jz4740_ecc_driver = { + .probe = ingenic_ecc_probe, + .driver = { + .name = "jz4740-ecc", + .of_match_table = jz4740_ecc_dt_match, + }, +}; +module_platform_driver(jz4740_ecc_driver); + +MODULE_AUTHOR("Paul Cercueil <paul@crapouillou.net>"); +MODULE_DESCRIPTION("Ingenic JZ4740 ECC controller driver"); +MODULE_LICENSE("GPL v2"); diff --git a/drivers/mtd/nand/raw/jz4740_nand.c b/drivers/mtd/nand/raw/ingenic/jz4740_nand.c index 9526d5b23c80..f759f1672855 100644 --- a/drivers/mtd/nand/raw/jz4740_nand.c +++ b/drivers/mtd/nand/raw/ingenic/jz4740_nand.c @@ -313,8 +313,11 @@ static int jz_nand_detect_bank(struct platform_device *pdev, uint32_t ctrl; struct nand_chip *chip = &nand->chip; struct mtd_info *mtd = nand_to_mtd(chip); + struct nand_memory_organization *memorg; u8 id[2]; + memorg = nanddev_get_memorg(&chip->base); + /* Request I/O resource. */ sprintf(res_name, "bank%d", bank); ret = jz_nand_ioremap_resource(pdev, res_name, @@ -351,8 +354,8 @@ static int jz_nand_detect_bank(struct platform_device *pdev, } /* Update size of the MTD. */ - chip->numchips++; - mtd->size += chip->chipsize; + memorg->ntargets++; + mtd->size += nanddev_target_size(&chip->base); } dev_info(&pdev->dev, "Found chip %zu on bank %i\n", chipnr, bank); diff --git a/drivers/mtd/nand/raw/jz4780_bch.c b/drivers/mtd/nand/raw/ingenic/jz4780_bch.c index c5f74ed85862..079266a0d6cf 100644 --- a/drivers/mtd/nand/raw/jz4780_bch.c +++ b/drivers/mtd/nand/raw/ingenic/jz4780_bch.c @@ -1,28 +1,22 @@ +// SPDX-License-Identifier: GPL-2.0 /* - * JZ4780 BCH controller + * JZ4780 BCH controller driver * * Copyright (c) 2015 Imagination Technologies * Author: Alex Smith <alex.smith@imgtec.com> - * - * This program is free software; you can redistribute it and/or modify it - * under the terms of the GNU General Public License version 2 as published - * by the Free Software Foundation. */ #include <linux/bitops.h> #include <linux/clk.h> -#include <linux/delay.h> -#include <linux/init.h> +#include <linux/device.h> +#include <linux/io.h> #include <linux/iopoll.h> #include <linux/module.h> #include <linux/mutex.h> -#include <linux/of.h> #include <linux/of_platform.h> #include <linux/platform_device.h> -#include <linux/sched.h> -#include <linux/slab.h> -#include "jz4780_bch.h" +#include "ingenic_ecc.h" #define BCH_BHCR 0x0 #define BCH_BHCCR 0x8 @@ -65,15 +59,8 @@ /* Timeout for BCH calculation/correction. */ #define BCH_TIMEOUT_US 100000 -struct jz4780_bch { - struct device *dev; - void __iomem *base; - struct clk *clk; - struct mutex lock; -}; - -static void jz4780_bch_init(struct jz4780_bch *bch, - struct jz4780_bch_params *params, bool encode) +static void jz4780_bch_reset(struct ingenic_ecc *bch, + struct ingenic_ecc_params *params, bool encode) { u32 reg; @@ -93,13 +80,13 @@ static void jz4780_bch_init(struct jz4780_bch *bch, writel(reg, bch->base + BCH_BHCR); } -static void jz4780_bch_disable(struct jz4780_bch *bch) +static void jz4780_bch_disable(struct ingenic_ecc *bch) { writel(readl(bch->base + BCH_BHINT), bch->base + BCH_BHINT); writel(BCH_BHCR_BCHE, bch->base + BCH_BHCCR); } -static void jz4780_bch_write_data(struct jz4780_bch *bch, const void *buf, +static void jz4780_bch_write_data(struct ingenic_ecc *bch, const void *buf, size_t size) { size_t size32 = size / sizeof(u32); @@ -116,7 +103,7 @@ static void jz4780_bch_write_data(struct jz4780_bch *bch, const void *buf, writeb(*src8++, bch->base + BCH_BHDR); } -static void jz4780_bch_read_parity(struct jz4780_bch *bch, void *buf, +static void jz4780_bch_read_parity(struct ingenic_ecc *bch, void *buf, size_t size) { size_t size32 = size / sizeof(u32); @@ -146,7 +133,7 @@ static void jz4780_bch_read_parity(struct jz4780_bch *bch, void *buf, } } -static bool jz4780_bch_wait_complete(struct jz4780_bch *bch, unsigned int irq, +static bool jz4780_bch_wait_complete(struct ingenic_ecc *bch, unsigned int irq, u32 *status) { u32 reg; @@ -170,23 +157,15 @@ static bool jz4780_bch_wait_complete(struct jz4780_bch *bch, unsigned int irq, return true; } -/** - * jz4780_bch_calculate() - calculate ECC for a data buffer - * @bch: BCH device. - * @params: BCH parameters. - * @buf: input buffer with raw data. - * @ecc_code: output buffer with ECC. - * - * Return: 0 on success, -ETIMEDOUT if timed out while waiting for BCH - * controller. - */ -int jz4780_bch_calculate(struct jz4780_bch *bch, struct jz4780_bch_params *params, - const u8 *buf, u8 *ecc_code) +static int jz4780_calculate(struct ingenic_ecc *bch, + struct ingenic_ecc_params *params, + const u8 *buf, u8 *ecc_code) { int ret = 0; mutex_lock(&bch->lock); - jz4780_bch_init(bch, params, true); + + jz4780_bch_reset(bch, params, true); jz4780_bch_write_data(bch, buf, params->size); if (jz4780_bch_wait_complete(bch, BCH_BHINT_ENCF, NULL)) { @@ -200,30 +179,17 @@ int jz4780_bch_calculate(struct jz4780_bch *bch, struct jz4780_bch_params *param mutex_unlock(&bch->lock); return ret; } -EXPORT_SYMBOL(jz4780_bch_calculate); - -/** - * jz4780_bch_correct() - detect and correct bit errors - * @bch: BCH device. - * @params: BCH parameters. - * @buf: raw data read from the chip. - * @ecc_code: ECC read from the chip. - * - * Given the raw data and the ECC read from the NAND device, detects and - * corrects errors in the data. - * - * Return: the number of bit errors corrected, -EBADMSG if there are too many - * errors to correct or -ETIMEDOUT if we timed out waiting for the controller. - */ -int jz4780_bch_correct(struct jz4780_bch *bch, struct jz4780_bch_params *params, - u8 *buf, u8 *ecc_code) + +static int jz4780_correct(struct ingenic_ecc *bch, + struct ingenic_ecc_params *params, + u8 *buf, u8 *ecc_code) { u32 reg, mask, index; int i, ret, count; mutex_lock(&bch->lock); - jz4780_bch_init(bch, params, false); + jz4780_bch_reset(bch, params, false); jz4780_bch_write_data(bch, buf, params->size); jz4780_bch_write_data(bch, ecc_code, params->bytes); @@ -262,110 +228,30 @@ out: mutex_unlock(&bch->lock); return ret; } -EXPORT_SYMBOL(jz4780_bch_correct); - -/** - * jz4780_bch_get() - get the BCH controller device - * @np: BCH device tree node. - * - * Gets the BCH controller device from the specified device tree node. The - * device must be released with jz4780_bch_release() when it is no longer being - * used. - * - * Return: a pointer to jz4780_bch, errors are encoded into the pointer. - * PTR_ERR(-EPROBE_DEFER) if the device hasn't been initialised yet. - */ -static struct jz4780_bch *jz4780_bch_get(struct device_node *np) -{ - struct platform_device *pdev; - struct jz4780_bch *bch; - - pdev = of_find_device_by_node(np); - if (!pdev) - return ERR_PTR(-EPROBE_DEFER); - - bch = platform_get_drvdata(pdev); - if (!bch) { - put_device(&pdev->dev); - return ERR_PTR(-EPROBE_DEFER); - } - - clk_prepare_enable(bch->clk); - - return bch; -} - -/** - * of_jz4780_bch_get() - get the BCH controller from a DT node - * @of_node: the node that contains a bch-controller property. - * - * Get the bch-controller property from the given device tree - * node and pass it to jz4780_bch_get to do the work. - * - * Return: a pointer to jz4780_bch, errors are encoded into the pointer. - * PTR_ERR(-EPROBE_DEFER) if the device hasn't been initialised yet. - */ -struct jz4780_bch *of_jz4780_bch_get(struct device_node *of_node) -{ - struct jz4780_bch *bch = NULL; - struct device_node *np; - - np = of_parse_phandle(of_node, "ingenic,bch-controller", 0); - - if (np) { - bch = jz4780_bch_get(np); - of_node_put(np); - } - return bch; -} -EXPORT_SYMBOL(of_jz4780_bch_get); - -/** - * jz4780_bch_release() - release the BCH controller device - * @bch: BCH device. - */ -void jz4780_bch_release(struct jz4780_bch *bch) -{ - clk_disable_unprepare(bch->clk); - put_device(bch->dev); -} -EXPORT_SYMBOL(jz4780_bch_release); static int jz4780_bch_probe(struct platform_device *pdev) { - struct device *dev = &pdev->dev; - struct jz4780_bch *bch; - struct resource *res; - - bch = devm_kzalloc(dev, sizeof(*bch), GFP_KERNEL); - if (!bch) - return -ENOMEM; - - res = platform_get_resource(pdev, IORESOURCE_MEM, 0); - bch->base = devm_ioremap_resource(dev, res); - if (IS_ERR(bch->base)) - return PTR_ERR(bch->base); - - jz4780_bch_disable(bch); + struct ingenic_ecc *bch; + int ret; - bch->clk = devm_clk_get(dev, NULL); - if (IS_ERR(bch->clk)) { - dev_err(dev, "failed to get clock: %ld\n", PTR_ERR(bch->clk)); - return PTR_ERR(bch->clk); - } + ret = ingenic_ecc_probe(pdev); + if (ret) + return ret; + bch = platform_get_drvdata(pdev); clk_set_rate(bch->clk, BCH_CLK_RATE); - mutex_init(&bch->lock); - - bch->dev = dev; - platform_set_drvdata(pdev, bch); - return 0; } +static const struct ingenic_ecc_ops jz4780_bch_ops = { + .disable = jz4780_bch_disable, + .calculate = jz4780_calculate, + .correct = jz4780_correct, +}; + static const struct of_device_id jz4780_bch_dt_match[] = { - { .compatible = "ingenic,jz4780-bch" }, + { .compatible = "ingenic,jz4780-bch", .data = &jz4780_bch_ops }, {}, }; MODULE_DEVICE_TABLE(of, jz4780_bch_dt_match); diff --git a/drivers/mtd/nand/raw/internals.h b/drivers/mtd/nand/raw/internals.h index fbf6ca015cd7..cba6fe7dd8c4 100644 --- a/drivers/mtd/nand/raw/internals.h +++ b/drivers/mtd/nand/raw/internals.h @@ -76,6 +76,7 @@ extern const struct nand_manufacturer_ops toshiba_nand_manuf_ops; /* Core functions */ const struct nand_manufacturer *nand_get_manufacturer(u8 id); +int nand_bbm_get_next_page(struct nand_chip *chip, int page); int nand_markbad_bbm(struct nand_chip *chip, loff_t ofs); int nand_erase_nand(struct nand_chip *chip, struct erase_info *instr, int allowbbt); @@ -110,7 +111,7 @@ static inline int nand_exec_op(struct nand_chip *chip, if (!nand_has_exec_op(chip)) return -ENOTSUPP; - if (WARN_ON(op->cs >= chip->numchips)) + if (WARN_ON(op->cs >= nanddev_ntargets(&chip->base))) return -EINVAL; return chip->controller->ops->exec_op(chip, op, false); diff --git a/drivers/mtd/nand/raw/jz4780_bch.h b/drivers/mtd/nand/raw/jz4780_bch.h deleted file mode 100644 index bf4718088a3a..000000000000 --- a/drivers/mtd/nand/raw/jz4780_bch.h +++ /dev/null @@ -1,43 +0,0 @@ -/* - * JZ4780 BCH controller - * - * Copyright (c) 2015 Imagination Technologies - * Author: Alex Smith <alex.smith@imgtec.com> - * - * This program is free software; you can redistribute it and/or modify it - * under the terms of the GNU General Public License version 2 as published - * by the Free Software Foundation. - */ - -#ifndef __DRIVERS_MTD_NAND_JZ4780_BCH_H__ -#define __DRIVERS_MTD_NAND_JZ4780_BCH_H__ - -#include <linux/types.h> - -struct device; -struct device_node; -struct jz4780_bch; - -/** - * struct jz4780_bch_params - BCH parameters - * @size: data bytes per ECC step. - * @bytes: ECC bytes per step. - * @strength: number of correctable bits per ECC step. - */ -struct jz4780_bch_params { - int size; - int bytes; - int strength; -}; - -int jz4780_bch_calculate(struct jz4780_bch *bch, - struct jz4780_bch_params *params, - const u8 *buf, u8 *ecc_code); -int jz4780_bch_correct(struct jz4780_bch *bch, - struct jz4780_bch_params *params, u8 *buf, - u8 *ecc_code); - -void jz4780_bch_release(struct jz4780_bch *bch); -struct jz4780_bch *of_jz4780_bch_get(struct device_node *np); - -#endif /* __DRIVERS_MTD_NAND_JZ4780_BCH_H__ */ diff --git a/drivers/mtd/nand/raw/jz4780_nand.c b/drivers/mtd/nand/raw/jz4780_nand.c deleted file mode 100644 index 22e58975f0d5..000000000000 --- a/drivers/mtd/nand/raw/jz4780_nand.c +++ /dev/null @@ -1,415 +0,0 @@ -/* - * JZ4780 NAND driver - * - * Copyright (c) 2015 Imagination Technologies - * Author: Alex Smith <alex.smith@imgtec.com> - * - * This program is free software; you can redistribute it and/or modify it - * under the terms of the GNU General Public License version 2 as published - * by the Free Software Foundation. - */ - -#include <linux/delay.h> -#include <linux/init.h> -#include <linux/io.h> -#include <linux/list.h> -#include <linux/module.h> -#include <linux/of.h> -#include <linux/of_address.h> -#include <linux/gpio/consumer.h> -#include <linux/platform_device.h> -#include <linux/slab.h> -#include <linux/mtd/mtd.h> -#include <linux/mtd/rawnand.h> -#include <linux/mtd/partitions.h> - -#include <linux/jz4780-nemc.h> - -#include "jz4780_bch.h" - -#define DRV_NAME "jz4780-nand" - -#define OFFSET_DATA 0x00000000 -#define OFFSET_CMD 0x00400000 -#define OFFSET_ADDR 0x00800000 - -/* Command delay when there is no R/B pin. */ -#define RB_DELAY_US 100 - -struct jz4780_nand_cs { - unsigned int bank; - void __iomem *base; -}; - -struct jz4780_nand_controller { - struct device *dev; - struct jz4780_bch *bch; - struct nand_controller controller; - unsigned int num_banks; - struct list_head chips; - int selected; - struct jz4780_nand_cs cs[]; -}; - -struct jz4780_nand_chip { - struct nand_chip chip; - struct list_head chip_list; - - struct gpio_desc *busy_gpio; - struct gpio_desc *wp_gpio; - unsigned int reading: 1; -}; - -static inline struct jz4780_nand_chip *to_jz4780_nand_chip(struct mtd_info *mtd) -{ - return container_of(mtd_to_nand(mtd), struct jz4780_nand_chip, chip); -} - -static inline struct jz4780_nand_controller -*to_jz4780_nand_controller(struct nand_controller *ctrl) -{ - return container_of(ctrl, struct jz4780_nand_controller, controller); -} - -static void jz4780_nand_select_chip(struct nand_chip *chip, int chipnr) -{ - struct jz4780_nand_chip *nand = to_jz4780_nand_chip(nand_to_mtd(chip)); - struct jz4780_nand_controller *nfc = to_jz4780_nand_controller(nand->chip.controller); - struct jz4780_nand_cs *cs; - - /* Ensure the currently selected chip is deasserted. */ - if (chipnr == -1 && nfc->selected >= 0) { - cs = &nfc->cs[nfc->selected]; - jz4780_nemc_assert(nfc->dev, cs->bank, false); - } - - nfc->selected = chipnr; -} - -static void jz4780_nand_cmd_ctrl(struct nand_chip *chip, int cmd, - unsigned int ctrl) -{ - struct jz4780_nand_chip *nand = to_jz4780_nand_chip(nand_to_mtd(chip)); - struct jz4780_nand_controller *nfc = to_jz4780_nand_controller(nand->chip.controller); - struct jz4780_nand_cs *cs; - - if (WARN_ON(nfc->selected < 0)) - return; - - cs = &nfc->cs[nfc->selected]; - - jz4780_nemc_assert(nfc->dev, cs->bank, ctrl & NAND_NCE); - - if (cmd == NAND_CMD_NONE) - return; - - if (ctrl & NAND_ALE) - writeb(cmd, cs->base + OFFSET_ADDR); - else if (ctrl & NAND_CLE) - writeb(cmd, cs->base + OFFSET_CMD); -} - -static int jz4780_nand_dev_ready(struct nand_chip *chip) -{ - struct jz4780_nand_chip *nand = to_jz4780_nand_chip(nand_to_mtd(chip)); - - return !gpiod_get_value_cansleep(nand->busy_gpio); -} - -static void jz4780_nand_ecc_hwctl(struct nand_chip *chip, int mode) -{ - struct jz4780_nand_chip *nand = to_jz4780_nand_chip(nand_to_mtd(chip)); - - nand->reading = (mode == NAND_ECC_READ); -} - -static int jz4780_nand_ecc_calculate(struct nand_chip *chip, const u8 *dat, - u8 *ecc_code) -{ - struct jz4780_nand_chip *nand = to_jz4780_nand_chip(nand_to_mtd(chip)); - struct jz4780_nand_controller *nfc = to_jz4780_nand_controller(nand->chip.controller); - struct jz4780_bch_params params; - - /* - * Don't need to generate the ECC when reading, BCH does it for us as - * part of decoding/correction. - */ - if (nand->reading) - return 0; - - params.size = nand->chip.ecc.size; - params.bytes = nand->chip.ecc.bytes; - params.strength = nand->chip.ecc.strength; - - return jz4780_bch_calculate(nfc->bch, ¶ms, dat, ecc_code); -} - -static int jz4780_nand_ecc_correct(struct nand_chip *chip, u8 *dat, - u8 *read_ecc, u8 *calc_ecc) -{ - struct jz4780_nand_chip *nand = to_jz4780_nand_chip(nand_to_mtd(chip)); - struct jz4780_nand_controller *nfc = to_jz4780_nand_controller(nand->chip.controller); - struct jz4780_bch_params params; - - params.size = nand->chip.ecc.size; - params.bytes = nand->chip.ecc.bytes; - params.strength = nand->chip.ecc.strength; - - return jz4780_bch_correct(nfc->bch, ¶ms, dat, read_ecc); -} - -static int jz4780_nand_attach_chip(struct nand_chip *chip) -{ - struct mtd_info *mtd = nand_to_mtd(chip); - struct jz4780_nand_controller *nfc = to_jz4780_nand_controller(chip->controller); - int eccbytes; - - chip->ecc.bytes = fls((1 + 8) * chip->ecc.size) * - (chip->ecc.strength / 8); - - switch (chip->ecc.mode) { - case NAND_ECC_HW: - if (!nfc->bch) { - dev_err(nfc->dev, - "HW BCH selected, but BCH controller not found\n"); - return -ENODEV; - } - - chip->ecc.hwctl = jz4780_nand_ecc_hwctl; - chip->ecc.calculate = jz4780_nand_ecc_calculate; - chip->ecc.correct = jz4780_nand_ecc_correct; - /* fall through */ - case NAND_ECC_SOFT: - dev_info(nfc->dev, "using %s (strength %d, size %d, bytes %d)\n", - (nfc->bch) ? "hardware BCH" : "software ECC", - chip->ecc.strength, chip->ecc.size, chip->ecc.bytes); - break; - case NAND_ECC_NONE: - dev_info(nfc->dev, "not using ECC\n"); - break; - default: - dev_err(nfc->dev, "ECC mode %d not supported\n", - chip->ecc.mode); - return -EINVAL; - } - - /* The NAND core will generate the ECC layout for SW ECC */ - if (chip->ecc.mode != NAND_ECC_HW) - return 0; - - /* Generate ECC layout. ECC codes are right aligned in the OOB area. */ - eccbytes = mtd->writesize / chip->ecc.size * chip->ecc.bytes; - - if (eccbytes > mtd->oobsize - 2) { - dev_err(nfc->dev, - "invalid ECC config: required %d ECC bytes, but only %d are available", - eccbytes, mtd->oobsize - 2); - return -EINVAL; - } - - mtd_set_ooblayout(mtd, &nand_ooblayout_lp_ops); - - return 0; -} - -static const struct nand_controller_ops jz4780_nand_controller_ops = { - .attach_chip = jz4780_nand_attach_chip, -}; - -static int jz4780_nand_init_chip(struct platform_device *pdev, - struct jz4780_nand_controller *nfc, - struct device_node *np, - unsigned int chipnr) -{ - struct device *dev = &pdev->dev; - struct jz4780_nand_chip *nand; - struct jz4780_nand_cs *cs; - struct resource *res; - struct nand_chip *chip; - struct mtd_info *mtd; - const __be32 *reg; - int ret = 0; - - cs = &nfc->cs[chipnr]; - - reg = of_get_property(np, "reg", NULL); - if (!reg) - return -EINVAL; - - cs->bank = be32_to_cpu(*reg); - - jz4780_nemc_set_type(nfc->dev, cs->bank, JZ4780_NEMC_BANK_NAND); - - res = platform_get_resource(pdev, IORESOURCE_MEM, chipnr); - cs->base = devm_ioremap_resource(dev, res); - if (IS_ERR(cs->base)) - return PTR_ERR(cs->base); - - nand = devm_kzalloc(dev, sizeof(*nand), GFP_KERNEL); - if (!nand) - return -ENOMEM; - - nand->busy_gpio = devm_gpiod_get_optional(dev, "rb", GPIOD_IN); - - if (IS_ERR(nand->busy_gpio)) { - ret = PTR_ERR(nand->busy_gpio); - dev_err(dev, "failed to request busy GPIO: %d\n", ret); - return ret; - } else if (nand->busy_gpio) { - nand->chip.legacy.dev_ready = jz4780_nand_dev_ready; - } - - nand->wp_gpio = devm_gpiod_get_optional(dev, "wp", GPIOD_OUT_LOW); - - if (IS_ERR(nand->wp_gpio)) { - ret = PTR_ERR(nand->wp_gpio); - dev_err(dev, "failed to request WP GPIO: %d\n", ret); - return ret; - } - - chip = &nand->chip; - mtd = nand_to_mtd(chip); - mtd->name = devm_kasprintf(dev, GFP_KERNEL, "%s.%d", dev_name(dev), - cs->bank); - if (!mtd->name) - return -ENOMEM; - mtd->dev.parent = dev; - - chip->legacy.IO_ADDR_R = cs->base + OFFSET_DATA; - chip->legacy.IO_ADDR_W = cs->base + OFFSET_DATA; - chip->legacy.chip_delay = RB_DELAY_US; - chip->options = NAND_NO_SUBPAGE_WRITE; - chip->legacy.select_chip = jz4780_nand_select_chip; - chip->legacy.cmd_ctrl = jz4780_nand_cmd_ctrl; - chip->ecc.mode = NAND_ECC_HW; - chip->controller = &nfc->controller; - nand_set_flash_node(chip, np); - - chip->controller->ops = &jz4780_nand_controller_ops; - ret = nand_scan(chip, 1); - if (ret) - return ret; - - ret = mtd_device_register(mtd, NULL, 0); - if (ret) { - nand_release(chip); - return ret; - } - - list_add_tail(&nand->chip_list, &nfc->chips); - - return 0; -} - -static void jz4780_nand_cleanup_chips(struct jz4780_nand_controller *nfc) -{ - struct jz4780_nand_chip *chip; - - while (!list_empty(&nfc->chips)) { - chip = list_first_entry(&nfc->chips, struct jz4780_nand_chip, chip_list); - nand_release(&chip->chip); - list_del(&chip->chip_list); - } -} - -static int jz4780_nand_init_chips(struct jz4780_nand_controller *nfc, - struct platform_device *pdev) -{ - struct device *dev = &pdev->dev; - struct device_node *np; - int i = 0; - int ret; - int num_chips = of_get_child_count(dev->of_node); - - if (num_chips > nfc->num_banks) { - dev_err(dev, "found %d chips but only %d banks\n", num_chips, nfc->num_banks); - return -EINVAL; - } - - for_each_child_of_node(dev->of_node, np) { - ret = jz4780_nand_init_chip(pdev, nfc, np, i); - if (ret) { - jz4780_nand_cleanup_chips(nfc); - return ret; - } - - i++; - } - - return 0; -} - -static int jz4780_nand_probe(struct platform_device *pdev) -{ - struct device *dev = &pdev->dev; - unsigned int num_banks; - struct jz4780_nand_controller *nfc; - int ret; - - num_banks = jz4780_nemc_num_banks(dev); - if (num_banks == 0) { - dev_err(dev, "no banks found\n"); - return -ENODEV; - } - - nfc = devm_kzalloc(dev, struct_size(nfc, cs, num_banks), GFP_KERNEL); - if (!nfc) - return -ENOMEM; - - /* - * Check for BCH HW before we call nand_scan_ident, to prevent us from - * having to call it again if the BCH driver returns -EPROBE_DEFER. - */ - nfc->bch = of_jz4780_bch_get(dev->of_node); - if (IS_ERR(nfc->bch)) - return PTR_ERR(nfc->bch); - - nfc->dev = dev; - nfc->num_banks = num_banks; - - nand_controller_init(&nfc->controller); - INIT_LIST_HEAD(&nfc->chips); - - ret = jz4780_nand_init_chips(nfc, pdev); - if (ret) { - if (nfc->bch) - jz4780_bch_release(nfc->bch); - return ret; - } - - platform_set_drvdata(pdev, nfc); - return 0; -} - -static int jz4780_nand_remove(struct platform_device *pdev) -{ - struct jz4780_nand_controller *nfc = platform_get_drvdata(pdev); - - if (nfc->bch) - jz4780_bch_release(nfc->bch); - - jz4780_nand_cleanup_chips(nfc); - - return 0; -} - -static const struct of_device_id jz4780_nand_dt_match[] = { - { .compatible = "ingenic,jz4780-nand" }, - {}, -}; -MODULE_DEVICE_TABLE(of, jz4780_nand_dt_match); - -static struct platform_driver jz4780_nand_driver = { - .probe = jz4780_nand_probe, - .remove = jz4780_nand_remove, - .driver = { - .name = DRV_NAME, - .of_match_table = of_match_ptr(jz4780_nand_dt_match), - }, -}; -module_platform_driver(jz4780_nand_driver); - -MODULE_AUTHOR("Alex Smith <alex@alex-smith.me.uk>"); -MODULE_AUTHOR("Harvey Hunt <harveyhuntnexus@gmail.com>"); -MODULE_DESCRIPTION("Ingenic JZ4780 NAND driver"); -MODULE_LICENSE("GPL v2"); diff --git a/drivers/mtd/nand/raw/marvell_nand.c b/drivers/mtd/nand/raw/marvell_nand.c index d984538980e2..fc49e13d81ec 100644 --- a/drivers/mtd/nand/raw/marvell_nand.c +++ b/drivers/mtd/nand/raw/marvell_nand.c @@ -1083,12 +1083,11 @@ static int marvell_nfc_hw_ecc_hmg_read_page(struct nand_chip *chip, u8 *buf, */ static int marvell_nfc_hw_ecc_hmg_read_oob_raw(struct nand_chip *chip, int page) { - /* Invalidate page cache */ - chip->pagebuf = -1; + u8 *buf = nand_get_data_buf(chip); marvell_nfc_select_target(chip, chip->cur_cs); - return marvell_nfc_hw_ecc_hmg_do_read_page(chip, chip->data_buf, - chip->oob_poi, true, page); + return marvell_nfc_hw_ecc_hmg_do_read_page(chip, buf, chip->oob_poi, + true, page); } /* Hamming write helpers */ @@ -1179,15 +1178,13 @@ static int marvell_nfc_hw_ecc_hmg_write_oob_raw(struct nand_chip *chip, int page) { struct mtd_info *mtd = nand_to_mtd(chip); + u8 *buf = nand_get_data_buf(chip); - /* Invalidate page cache */ - chip->pagebuf = -1; - - memset(chip->data_buf, 0xFF, mtd->writesize); + memset(buf, 0xFF, mtd->writesize); marvell_nfc_select_target(chip, chip->cur_cs); - return marvell_nfc_hw_ecc_hmg_do_write_page(chip, chip->data_buf, - chip->oob_poi, true, page); + return marvell_nfc_hw_ecc_hmg_do_write_page(chip, buf, chip->oob_poi, + true, page); } /* BCH read helpers */ @@ -1434,18 +1431,16 @@ static int marvell_nfc_hw_ecc_bch_read_page(struct nand_chip *chip, static int marvell_nfc_hw_ecc_bch_read_oob_raw(struct nand_chip *chip, int page) { - /* Invalidate page cache */ - chip->pagebuf = -1; + u8 *buf = nand_get_data_buf(chip); - return chip->ecc.read_page_raw(chip, chip->data_buf, true, page); + return chip->ecc.read_page_raw(chip, buf, true, page); } static int marvell_nfc_hw_ecc_bch_read_oob(struct nand_chip *chip, int page) { - /* Invalidate page cache */ - chip->pagebuf = -1; + u8 *buf = nand_get_data_buf(chip); - return chip->ecc.read_page(chip, chip->data_buf, true, page); + return chip->ecc.read_page(chip, buf, true, page); } /* BCH write helpers */ @@ -1619,25 +1614,21 @@ static int marvell_nfc_hw_ecc_bch_write_oob_raw(struct nand_chip *chip, int page) { struct mtd_info *mtd = nand_to_mtd(chip); + u8 *buf = nand_get_data_buf(chip); - /* Invalidate page cache */ - chip->pagebuf = -1; - - memset(chip->data_buf, 0xFF, mtd->writesize); + memset(buf, 0xFF, mtd->writesize); - return chip->ecc.write_page_raw(chip, chip->data_buf, true, page); + return chip->ecc.write_page_raw(chip, buf, true, page); } static int marvell_nfc_hw_ecc_bch_write_oob(struct nand_chip *chip, int page) { struct mtd_info *mtd = nand_to_mtd(chip); + u8 *buf = nand_get_data_buf(chip); - /* Invalidate page cache */ - chip->pagebuf = -1; - - memset(chip->data_buf, 0xFF, mtd->writesize); + memset(buf, 0xFF, mtd->writesize); - return chip->ecc.write_page(chip, chip->data_buf, true, page); + return chip->ecc.write_page(chip, buf, true, page); } /* NAND framework ->exec_op() hooks and related helpers */ @@ -2257,9 +2248,9 @@ static int marvell_nand_ecc_init(struct mtd_info *mtd, int ret; if (ecc->mode != NAND_ECC_NONE && (!ecc->size || !ecc->strength)) { - if (chip->ecc_step_ds && chip->ecc_strength_ds) { - ecc->size = chip->ecc_step_ds; - ecc->strength = chip->ecc_strength_ds; + if (chip->base.eccreq.step_size && chip->base.eccreq.strength) { + ecc->size = chip->base.eccreq.step_size; + ecc->strength = chip->base.eccreq.strength; } else { dev_info(nfc->dev, "No minimum ECC strength, using 1b/512B\n"); @@ -2989,7 +2980,7 @@ static int __maybe_unused marvell_nfc_resume(struct device *dev) /* * Reset nfc->selected_chip so the next command will cause the timing - * registers to be restored in marvell_nfc_select_chip(). + * registers to be restored in marvell_nfc_select_target(). */ nfc->selected_chip = NULL; diff --git a/drivers/mtd/nand/raw/meson_nand.c b/drivers/mtd/nand/raw/meson_nand.c index 3e8aa71407b5..ea57ddcec41e 100644 --- a/drivers/mtd/nand/raw/meson_nand.c +++ b/drivers/mtd/nand/raw/meson_nand.c @@ -400,7 +400,7 @@ static int meson_nfc_queue_rb(struct meson_nfc *nfc, int timeout_ms) cfg |= NFC_RB_IRQ_EN; writel(cfg, nfc->reg_base + NFC_REG_CFG); - init_completion(&nfc->completion); + reinit_completion(&nfc->completion); /* use the max erase time as the maximum clock for waiting R/B */ cmd = NFC_CMD_RB | NFC_CMD_RB_INT @@ -470,15 +470,15 @@ static int meson_nfc_ecc_correct(struct nand_chip *nand, u32 *bitflips, return ret; } -static int meson_nfc_dma_buffer_setup(struct nand_chip *nand, u8 *databuf, - int datalen, u8 *infobuf, int infolen, +static int meson_nfc_dma_buffer_setup(struct nand_chip *nand, void *databuf, + int datalen, void *infobuf, int infolen, enum dma_data_direction dir) { struct meson_nfc *nfc = nand_get_controller_data(nand); u32 cmd; int ret = 0; - nfc->daddr = dma_map_single(nfc->dev, (void *)databuf, datalen, dir); + nfc->daddr = dma_map_single(nfc->dev, databuf, datalen, dir); ret = dma_mapping_error(nfc->dev, nfc->daddr); if (ret) { dev_err(nfc->dev, "DMA mapping error\n"); @@ -528,10 +528,13 @@ static int meson_nfc_read_buf(struct nand_chip *nand, u8 *buf, int len) u8 *info; info = kzalloc(PER_INFO_BYTE, GFP_KERNEL); + if (!info) + return -ENOMEM; + ret = meson_nfc_dma_buffer_setup(nand, buf, len, info, PER_INFO_BYTE, DMA_FROM_DEVICE); if (ret) - return ret; + goto out; cmd = NFC_CMD_N2M | (len & GENMASK(5, 0)); writel(cmd, nfc->reg_base + NFC_REG_CMD); @@ -539,6 +542,8 @@ static int meson_nfc_read_buf(struct nand_chip *nand, u8 *buf, int len) meson_nfc_drain_cmd(nfc); meson_nfc_wait_cmd_finish(nfc, 1000); meson_nfc_dma_buffer_release(nand, len, PER_INFO_BYTE, DMA_FROM_DEVICE); + +out: kfree(info); return ret; @@ -640,7 +645,7 @@ static int meson_nfc_write_page_sub(struct nand_chip *nand, return ret; ret = meson_nfc_dma_buffer_setup(nand, meson_chip->data_buf, - data_len, (u8 *)meson_chip->info_buf, + data_len, meson_chip->info_buf, info_len, DMA_TO_DEVICE); if (ret) return ret; @@ -724,7 +729,7 @@ static int meson_nfc_read_page_sub(struct nand_chip *nand, return ret; ret = meson_nfc_dma_buffer_setup(nand, meson_chip->data_buf, - data_len, (u8 *)meson_chip->info_buf, + data_len, meson_chip->info_buf, info_len, DMA_FROM_DEVICE); if (ret) return ret; @@ -1183,6 +1188,8 @@ static int meson_nand_attach_chip(struct nand_chip *nand) return -EINVAL; } + mtd_set_ooblayout(mtd, &meson_ooblayout_ops); + ret = meson_nand_bch_mode(nand); if (ret) return -EINVAL; @@ -1226,17 +1233,13 @@ meson_nfc_nand_chip_init(struct device *dev, int ret, i; u32 tmp, nsels; - if (!of_get_property(np, "reg", &nsels)) - return -EINVAL; - - nsels /= sizeof(u32); + nsels = of_property_count_elems_of_size(np, "reg", sizeof(u32)); if (!nsels || nsels > MAX_CE_NUM) { dev_err(dev, "invalid register property size\n"); return -EINVAL; } - meson_chip = devm_kzalloc(dev, - sizeof(*meson_chip) + (nsels * sizeof(u8)), + meson_chip = devm_kzalloc(dev, struct_size(meson_chip, sels, nsels), GFP_KERNEL); if (!meson_chip) return -ENOMEM; @@ -1377,6 +1380,7 @@ static int meson_nfc_probe(struct platform_device *pdev) nand_controller_init(&nfc->controller); INIT_LIST_HEAD(&nfc->chips); + init_completion(&nfc->completion); nfc->dev = dev; diff --git a/drivers/mtd/nand/raw/mtk_nand.c b/drivers/mtd/nand/raw/mtk_nand.c index 2c0e09187773..b17619f30b1b 100644 --- a/drivers/mtd/nand/raw/mtk_nand.c +++ b/drivers/mtd/nand/raw/mtk_nand.c @@ -1197,8 +1197,8 @@ static int mtk_nfc_ecc_init(struct device *dev, struct mtd_info *mtd) /* if optional dt settings not present */ if (!nand->ecc.size || !nand->ecc.strength) { /* use datasheet requirements */ - nand->ecc.strength = nand->ecc_strength_ds; - nand->ecc.size = nand->ecc_step_ds; + nand->ecc.strength = nand->base.eccreq.strength; + nand->ecc.size = nand->base.eccreq.step_size; /* * align eccstrength and eccsize diff --git a/drivers/mtd/nand/raw/nand_amd.c b/drivers/mtd/nand/raw/nand_amd.c index 890c5b43e03c..6217555c19a6 100644 --- a/drivers/mtd/nand/raw/nand_amd.c +++ b/drivers/mtd/nand/raw/nand_amd.c @@ -20,6 +20,9 @@ static void amd_nand_decode_id(struct nand_chip *chip) { struct mtd_info *mtd = nand_to_mtd(chip); + struct nand_memory_organization *memorg; + + memorg = nanddev_get_memorg(&chip->base); nand_decode_ext_id(chip); @@ -31,16 +34,24 @@ static void amd_nand_decode_id(struct nand_chip *chip) */ if (chip->id.data[4] != 0x00 && chip->id.data[5] == 0x00 && chip->id.data[6] == 0x00 && chip->id.data[7] == 0x00 && - mtd->writesize == 512) { - mtd->erasesize = 128 * 1024; - mtd->erasesize <<= ((chip->id.data[3] & 0x03) << 1); + memorg->pagesize == 512) { + memorg->pages_per_eraseblock = 256; + memorg->pages_per_eraseblock <<= ((chip->id.data[3] & 0x03) << 1); + mtd->erasesize = memorg->pages_per_eraseblock * + memorg->pagesize; } } static int amd_nand_init(struct nand_chip *chip) { if (nand_is_slc(chip)) - chip->bbt_options |= NAND_BBT_SCAN2NDPAGE; + /* + * According to the datasheet of some Cypress SLC NANDs, + * the bad block markers can be in the first, second or last + * page of a block. So let's check all three locations. + */ + chip->options |= NAND_BBM_FIRSTPAGE | NAND_BBM_SECONDPAGE | + NAND_BBM_LASTPAGE; return 0; } diff --git a/drivers/mtd/nand/raw/nand_base.c b/drivers/mtd/nand/raw/nand_base.c index ddd396e93e32..2cf71060d6f8 100644 --- a/drivers/mtd/nand/raw/nand_base.c +++ b/drivers/mtd/nand/raw/nand_base.c @@ -240,10 +240,10 @@ static int check_offs_len(struct nand_chip *chip, loff_t ofs, uint64_t len) void nand_select_target(struct nand_chip *chip, unsigned int cs) { /* - * cs should always lie between 0 and chip->numchips, when that's not - * the case it's a bug and the caller should be fixed. + * cs should always lie between 0 and nanddev_ntargets(), when that's + * not the case it's a bug and the caller should be fixed. */ - if (WARN_ON(cs > chip->numchips)) + if (WARN_ON(cs > nanddev_ntargets(&chip->base))) return; chip->cur_cs = cs; @@ -283,6 +283,31 @@ static void nand_release_device(struct nand_chip *chip) } /** + * nand_bbm_get_next_page - Get the next page for bad block markers + * @chip: NAND chip object + * @page: First page to start checking for bad block marker usage + * + * Returns an integer that corresponds to the page offset within a block, for + * a page that is used to store bad block markers. If no more pages are + * available, -EINVAL is returned. + */ +int nand_bbm_get_next_page(struct nand_chip *chip, int page) +{ + struct mtd_info *mtd = nand_to_mtd(chip); + int last_page = ((mtd->erasesize - mtd->writesize) >> + chip->page_shift) & chip->pagemask; + + if (page == 0 && chip->options & NAND_BBM_FIRSTPAGE) + return 0; + else if (page <= 1 && chip->options & NAND_BBM_SECONDPAGE) + return 1; + else if (page <= last_page && chip->options & NAND_BBM_LASTPAGE) + return last_page; + + return -EINVAL; +} + +/** * nand_block_bad - [DEFAULT] Read bad block marker from the chip * @chip: NAND chip object * @ofs: offset from device start @@ -291,18 +316,15 @@ static void nand_release_device(struct nand_chip *chip) */ static int nand_block_bad(struct nand_chip *chip, loff_t ofs) { - struct mtd_info *mtd = nand_to_mtd(chip); - int page, page_end, res; + int first_page, page_offset; + int res; u8 bad; - if (chip->bbt_options & NAND_BBT_SCANLASTPAGE) - ofs += mtd->erasesize - mtd->writesize; - - page = (int)(ofs >> chip->page_shift) & chip->pagemask; - page_end = page + (chip->bbt_options & NAND_BBT_SCAN2NDPAGE ? 2 : 1); + first_page = (int)(ofs >> chip->page_shift) & chip->pagemask; + page_offset = nand_bbm_get_next_page(chip, 0); - for (; page < page_end; page++) { - res = chip->ecc.read_oob(chip, page); + while (page_offset >= 0) { + res = chip->ecc.read_oob(chip, first_page + page_offset); if (res < 0) return res; @@ -314,6 +336,8 @@ static int nand_block_bad(struct nand_chip *chip, loff_t ofs) res = hweight8(bad) < chip->badblockbits; if (res) return res; + + page_offset = nand_bbm_get_next_page(chip, page_offset + 1); } return 0; @@ -459,8 +483,8 @@ static int nand_do_write_oob(struct nand_chip *chip, loff_t to, } /* Invalidate the page cache, if we write to the cached page */ - if (page == chip->pagebuf) - chip->pagebuf = -1; + if (page == chip->pagecache.page) + chip->pagecache.page = -1; nand_fill_oob(chip, ops->oobbuf, ops->ooblen, ops); @@ -493,7 +517,7 @@ static int nand_default_block_markbad(struct nand_chip *chip, loff_t ofs) struct mtd_info *mtd = nand_to_mtd(chip); struct mtd_oob_ops ops; uint8_t buf[2] = { 0, 0 }; - int ret = 0, res, i = 0; + int ret = 0, res, page_offset; memset(&ops, 0, sizeof(ops)); ops.oobbuf = buf; @@ -506,17 +530,18 @@ static int nand_default_block_markbad(struct nand_chip *chip, loff_t ofs) } ops.mode = MTD_OPS_PLACE_OOB; - /* Write to first/last page(s) if necessary */ - if (chip->bbt_options & NAND_BBT_SCANLASTPAGE) - ofs += mtd->erasesize - mtd->writesize; - do { - res = nand_do_write_oob(chip, ofs, &ops); + page_offset = nand_bbm_get_next_page(chip, 0); + + while (page_offset >= 0) { + res = nand_do_write_oob(chip, + ofs + (page_offset * mtd->writesize), + &ops); + if (!ret) ret = res; - i++; - ofs += mtd->writesize; - } while ((chip->bbt_options & NAND_BBT_SCAN2NDPAGE) && i < 2); + page_offset = nand_bbm_get_next_page(chip, page_offset + 1); + } return ret; } @@ -3173,7 +3198,7 @@ static int nand_do_read_ops(struct nand_chip *chip, loff_t from, use_bufpoi = 0; /* Is the current page in the buffer? */ - if (realpage != chip->pagebuf || oob) { + if (realpage != chip->pagecache.page || oob) { bufpoi = use_bufpoi ? chip->data_buf : buf; if (use_bufpoi && aligned) @@ -3199,7 +3224,7 @@ read_retry: if (ret < 0) { if (use_bufpoi) /* Invalidate page cache */ - chip->pagebuf = -1; + chip->pagecache.page = -1; break; } @@ -3208,11 +3233,11 @@ read_retry: if (!NAND_HAS_SUBPAGE_READ(chip) && !oob && !(mtd->ecc_stats.failed - ecc_failures) && (ops->mode != MTD_OPS_RAW)) { - chip->pagebuf = realpage; - chip->pagebuf_bitflips = ret; + chip->pagecache.page = realpage; + chip->pagecache.bitflips = ret; } else { /* Invalidate page cache */ - chip->pagebuf = -1; + chip->pagecache.page = -1; } memcpy(buf, chip->data_buf + col, bytes); } @@ -3252,7 +3277,7 @@ read_retry: memcpy(buf, chip->data_buf + col, bytes); buf += bytes; max_bitflips = max_t(unsigned int, max_bitflips, - chip->pagebuf_bitflips); + chip->pagecache.bitflips); } readlen -= bytes; @@ -3973,9 +3998,9 @@ static int nand_do_write_ops(struct nand_chip *chip, loff_t to, page = realpage & chip->pagemask; /* Invalidate the page cache, when we write to the cached page */ - if (to <= ((loff_t)chip->pagebuf << chip->page_shift) && - ((loff_t)chip->pagebuf << chip->page_shift) < (to + ops->len)) - chip->pagebuf = -1; + if (to <= ((loff_t)chip->pagecache.page << chip->page_shift) && + ((loff_t)chip->pagecache.page << chip->page_shift) < (to + ops->len)) + chip->pagecache.page = -1; /* Don't allow multipage oob writes with offset */ if (oob && ops->ooboffs && (ops->ooboffs + ops->ooblen > oobmaxlen)) { @@ -4004,10 +4029,9 @@ static int nand_do_write_ops(struct nand_chip *chip, loff_t to, __func__, buf); if (part_pagewr) bytes = min_t(int, bytes - column, writelen); - chip->pagebuf = -1; - memset(chip->data_buf, 0xff, mtd->writesize); - memcpy(&chip->data_buf[column], buf, bytes); - wbuf = chip->data_buf; + wbuf = nand_get_data_buf(chip); + memset(wbuf, 0xff, mtd->writesize); + memcpy(&wbuf[column], buf, bytes); } if (unlikely(oob)) { @@ -4197,9 +4221,9 @@ int nand_erase_nand(struct nand_chip *chip, struct erase_info *instr, * Invalidate the page cache, if we erase the block which * contains the current cached page. */ - if (page <= chip->pagebuf && chip->pagebuf < + if (page <= chip->pagecache.page && chip->pagecache.page < (page + pages_per_block)) - chip->pagebuf = -1; + chip->pagecache.page = -1; ret = nand_erase_op(chip, (page & chip->pagemask) >> (chip->phys_erase_shift - chip->page_shift)); @@ -4299,42 +4323,6 @@ static int nand_block_markbad(struct mtd_info *mtd, loff_t ofs) } /** - * nand_max_bad_blocks - [MTD Interface] Max number of bad blocks for an mtd - * @mtd: MTD device structure - * @ofs: offset relative to mtd start - * @len: length of mtd - */ -static int nand_max_bad_blocks(struct mtd_info *mtd, loff_t ofs, size_t len) -{ - struct nand_chip *chip = mtd_to_nand(mtd); - u32 part_start_block; - u32 part_end_block; - u32 part_start_die; - u32 part_end_die; - - /* - * max_bb_per_die and blocks_per_die used to determine - * the maximum bad block count. - */ - if (!chip->max_bb_per_die || !chip->blocks_per_die) - return -ENOTSUPP; - - /* Get the start and end of the partition in erase blocks. */ - part_start_block = mtd_div_by_eb(ofs, mtd); - part_end_block = mtd_div_by_eb(len, mtd) + part_start_block - 1; - - /* Get the start and end LUNs of the partition. */ - part_start_die = part_start_block / chip->blocks_per_die; - part_end_die = part_end_block / chip->blocks_per_die; - - /* - * Look up the bad blocks per unit and multiply by the number of units - * that the partition spans. - */ - return chip->max_bb_per_die * (part_end_die - part_start_die + 1); -} - -/** * nand_suspend - [MTD Interface] Suspend the NAND flash * @mtd: MTD device structure */ @@ -4485,21 +4473,29 @@ static int nand_get_bits_per_cell(u8 cellinfo) */ void nand_decode_ext_id(struct nand_chip *chip) { + struct nand_memory_organization *memorg; struct mtd_info *mtd = nand_to_mtd(chip); int extid; u8 *id_data = chip->id.data; + + memorg = nanddev_get_memorg(&chip->base); + /* The 3rd id byte holds MLC / multichip data */ - chip->bits_per_cell = nand_get_bits_per_cell(id_data[2]); + memorg->bits_per_cell = nand_get_bits_per_cell(id_data[2]); /* The 4th id byte is the important one */ extid = id_data[3]; /* Calc pagesize */ - mtd->writesize = 1024 << (extid & 0x03); + memorg->pagesize = 1024 << (extid & 0x03); + mtd->writesize = memorg->pagesize; extid >>= 2; /* Calc oobsize */ - mtd->oobsize = (8 << (extid & 0x01)) * (mtd->writesize >> 9); + memorg->oobsize = (8 << (extid & 0x01)) * (mtd->writesize >> 9); + mtd->oobsize = memorg->oobsize; extid >>= 2; /* Calc blocksize. Blocksize is multiples of 64KiB */ + memorg->pages_per_eraseblock = ((64 * 1024) << (extid & 0x03)) / + memorg->pagesize; mtd->erasesize = (64 * 1024) << (extid & 0x03); extid >>= 2; /* Get buswidth information */ @@ -4516,13 +4512,19 @@ EXPORT_SYMBOL_GPL(nand_decode_ext_id); static void nand_decode_id(struct nand_chip *chip, struct nand_flash_dev *type) { struct mtd_info *mtd = nand_to_mtd(chip); + struct nand_memory_organization *memorg; + + memorg = nanddev_get_memorg(&chip->base); + memorg->pages_per_eraseblock = type->erasesize / type->pagesize; mtd->erasesize = type->erasesize; - mtd->writesize = type->pagesize; - mtd->oobsize = mtd->writesize / 32; + memorg->pagesize = type->pagesize; + mtd->writesize = memorg->pagesize; + memorg->oobsize = memorg->pagesize / 32; + mtd->oobsize = memorg->oobsize; /* All legacy ID NAND are small-page, SLC */ - chip->bits_per_cell = 1; + memorg->bits_per_cell = 1; } /* @@ -4536,9 +4538,9 @@ static void nand_decode_bbm_options(struct nand_chip *chip) /* Set the bad block position */ if (mtd->writesize > 512 || (chip->options & NAND_BUSWIDTH_16)) - chip->badblockpos = NAND_LARGE_BADBLOCK_POS; + chip->badblockpos = NAND_BBM_POS_LARGE; else - chip->badblockpos = NAND_SMALL_BADBLOCK_POS; + chip->badblockpos = NAND_BBM_POS_SMALL; } static inline bool is_full_id_nand(struct nand_flash_dev *type) @@ -4550,18 +4552,28 @@ static bool find_full_id_nand(struct nand_chip *chip, struct nand_flash_dev *type) { struct mtd_info *mtd = nand_to_mtd(chip); + struct nand_memory_organization *memorg; u8 *id_data = chip->id.data; + memorg = nanddev_get_memorg(&chip->base); + if (!strncmp(type->id, id_data, type->id_len)) { - mtd->writesize = type->pagesize; + memorg->pagesize = type->pagesize; + mtd->writesize = memorg->pagesize; + memorg->pages_per_eraseblock = type->erasesize / + type->pagesize; mtd->erasesize = type->erasesize; - mtd->oobsize = type->oobsize; - - chip->bits_per_cell = nand_get_bits_per_cell(id_data[2]); - chip->chipsize = (uint64_t)type->chipsize << 20; + memorg->oobsize = type->oobsize; + mtd->oobsize = memorg->oobsize; + + memorg->bits_per_cell = nand_get_bits_per_cell(id_data[2]); + memorg->eraseblocks_per_lun = + DIV_ROUND_DOWN_ULL((u64)type->chipsize << 20, + memorg->pagesize * + memorg->pages_per_eraseblock); chip->options |= type->options; - chip->ecc_strength_ds = NAND_ECC_STRENGTH(type); - chip->ecc_step_ds = NAND_ECC_STEP(type); + chip->base.eccreq.strength = NAND_ECC_STRENGTH(type); + chip->base.eccreq.step_size = NAND_ECC_STEP(type); chip->onfi_timing_mode_default = type->onfi_timing_mode_default; @@ -4587,8 +4599,12 @@ static void nand_manufacturer_detect(struct nand_chip *chip) */ if (chip->manufacturer.desc && chip->manufacturer.desc->ops && chip->manufacturer.desc->ops->detect) { + struct nand_memory_organization *memorg; + + memorg = nanddev_get_memorg(&chip->base); + /* The 3rd id byte holds MLC / multichip data */ - chip->bits_per_cell = nand_get_bits_per_cell(chip->id.data[2]); + memorg->bits_per_cell = nand_get_bits_per_cell(chip->id.data[2]); chip->manufacturer.desc->ops->detect(chip); } else { nand_decode_ext_id(chip); @@ -4637,9 +4653,20 @@ static int nand_detect(struct nand_chip *chip, struct nand_flash_dev *type) { const struct nand_manufacturer *manufacturer; struct mtd_info *mtd = nand_to_mtd(chip); + struct nand_memory_organization *memorg; int busw, ret; u8 *id_data = chip->id.data; u8 maf_id, dev_id; + u64 targetsize; + + /* + * Let's start by initializing memorg fields that might be left + * unassigned by the ID-based detection logic. + */ + memorg = nanddev_get_memorg(&chip->base); + memorg->planes_per_lun = 1; + memorg->luns_per_target = 1; + memorg->ntargets = 1; /* * Reset the chip, required by some chips (e.g. Micron MT29FxGxxxxx) @@ -4735,8 +4762,6 @@ static int nand_detect(struct nand_chip *chip, struct nand_flash_dev *type) if (!chip->parameters.model) return -ENOMEM; - chip->chipsize = (uint64_t)type->chipsize << 20; - if (!type->pagesize) nand_manufacturer_detect(chip); else @@ -4745,6 +4770,11 @@ static int nand_detect(struct nand_chip *chip, struct nand_flash_dev *type) /* Get chip options */ chip->options |= type->options; + memorg->eraseblocks_per_lun = + DIV_ROUND_DOWN_ULL((u64)type->chipsize << 20, + memorg->pagesize * + memorg->pages_per_eraseblock); + ident_done: if (!mtd->name) mtd->name = chip->parameters.model; @@ -4773,14 +4803,15 @@ ident_done: /* Calculate the address shift from the page size */ chip->page_shift = ffs(mtd->writesize) - 1; /* Convert chipsize to number of pages per chip -1 */ - chip->pagemask = (chip->chipsize >> chip->page_shift) - 1; + targetsize = nanddev_target_size(&chip->base); + chip->pagemask = (targetsize >> chip->page_shift) - 1; chip->bbt_erase_shift = chip->phys_erase_shift = ffs(mtd->erasesize) - 1; - if (chip->chipsize & 0xffffffff) - chip->chip_shift = ffs((unsigned)chip->chipsize) - 1; + if (targetsize & 0xffffffff) + chip->chip_shift = ffs((unsigned)targetsize) - 1; else { - chip->chip_shift = ffs((unsigned)(chip->chipsize >> 32)); + chip->chip_shift = ffs((unsigned)(targetsize >> 32)); chip->chip_shift += 32 - 1; } @@ -4796,7 +4827,7 @@ ident_done: pr_info("%s %s\n", nand_manufacturer_name(manufacturer), chip->parameters.model); pr_info("%d MiB, %s, erase size: %d KiB, page size: %d, OOB size: %d\n", - (int)(chip->chipsize >> 20), nand_is_slc(chip) ? "SLC" : "MLC", + (int)(targetsize >> 20), nand_is_slc(chip) ? "SLC" : "MLC", mtd->erasesize >> 10, mtd->writesize, mtd->oobsize); return 0; @@ -4971,10 +5002,13 @@ static int nand_scan_ident(struct nand_chip *chip, unsigned int maxchips, struct nand_flash_dev *table) { struct mtd_info *mtd = nand_to_mtd(chip); + struct nand_memory_organization *memorg; int nand_maf_id, nand_dev_id; unsigned int i; int ret; + memorg = nanddev_get_memorg(&chip->base); + /* Assume all dies are deselected when we enter nand_scan_ident(). */ chip->cur_cs = -1; @@ -4990,12 +5024,6 @@ static int nand_scan_ident(struct nand_chip *chip, unsigned int maxchips, if (!mtd->name && mtd->dev.parent) mtd->name = dev_name(mtd->dev.parent); - /* - * Start with chips->numchips = maxchips to let nand_select_target() do - * its job. chip->numchips will be adjusted after. - */ - chip->numchips = maxchips; - /* Set the default functions */ nand_set_defaults(chip); @@ -5042,8 +5070,8 @@ static int nand_scan_ident(struct nand_chip *chip, unsigned int maxchips, pr_info("%d chips detected\n", i); /* Store the number of chips and calc total size for mtd */ - chip->numchips = i; - mtd->size = i * chip->chipsize; + memorg->ntargets = i; + mtd->size = i * nanddev_target_size(&chip->base); return 0; } @@ -5078,13 +5106,13 @@ static int nand_set_ecc_soft_ops(struct nand_chip *chip) ecc->bytes = 3; ecc->strength = 1; - if (IS_ENABLED(CONFIG_MTD_NAND_ECC_SMC)) + if (IS_ENABLED(CONFIG_MTD_NAND_ECC_SW_HAMMING_SMC)) ecc->options |= NAND_ECC_SOFT_HAMMING_SM_ORDER; return 0; case NAND_ECC_BCH: if (!mtd_nand_has_bch()) { - WARN(1, "CONFIG_MTD_NAND_ECC_BCH not enabled\n"); + WARN(1, "CONFIG_MTD_NAND_ECC_SW_BCH not enabled\n"); return -EINVAL; } ecc->calculate = nand_bch_calculate_ecc; @@ -5224,8 +5252,8 @@ nand_match_ecc_req(struct nand_chip *chip, { struct mtd_info *mtd = nand_to_mtd(chip); const struct nand_ecc_step_info *stepinfo; - int req_step = chip->ecc_step_ds; - int req_strength = chip->ecc_strength_ds; + int req_step = chip->base.eccreq.step_size; + int req_strength = chip->base.eccreq.strength; int req_corr, step_size, strength, nsteps, ecc_bytes, ecc_bytes_total; int best_step, best_strength, best_ecc_bytes; int best_ecc_bytes_total = INT_MAX; @@ -5418,7 +5446,7 @@ static bool nand_ecc_strength_good(struct nand_chip *chip) struct nand_ecc_ctrl *ecc = &chip->ecc; int corr, ds_corr; - if (ecc->size == 0 || chip->ecc_step_ds == 0) + if (ecc->size == 0 || chip->base.eccreq.step_size == 0) /* Not enough information */ return true; @@ -5427,11 +5455,56 @@ static bool nand_ecc_strength_good(struct nand_chip *chip) * the correction density. */ corr = (mtd->writesize * ecc->strength) / ecc->size; - ds_corr = (mtd->writesize * chip->ecc_strength_ds) / chip->ecc_step_ds; + ds_corr = (mtd->writesize * chip->base.eccreq.strength) / + chip->base.eccreq.step_size; - return corr >= ds_corr && ecc->strength >= chip->ecc_strength_ds; + return corr >= ds_corr && ecc->strength >= chip->base.eccreq.strength; } +static int rawnand_erase(struct nand_device *nand, const struct nand_pos *pos) +{ + struct nand_chip *chip = container_of(nand, struct nand_chip, + base); + unsigned int eb = nanddev_pos_to_row(nand, pos); + int ret; + + eb >>= nand->rowconv.eraseblock_addr_shift; + + nand_select_target(chip, pos->target); + ret = nand_erase_op(chip, eb); + nand_deselect_target(chip); + + return ret; +} + +static int rawnand_markbad(struct nand_device *nand, + const struct nand_pos *pos) +{ + struct nand_chip *chip = container_of(nand, struct nand_chip, + base); + + return nand_markbad_bbm(chip, nanddev_pos_to_offs(nand, pos)); +} + +static bool rawnand_isbad(struct nand_device *nand, const struct nand_pos *pos) +{ + struct nand_chip *chip = container_of(nand, struct nand_chip, + base); + int ret; + + nand_select_target(chip, pos->target); + ret = nand_isbad_bbm(chip, nanddev_pos_to_offs(nand, pos)); + nand_deselect_target(chip); + + return ret; +} + +static const struct nand_ops rawnand_ops = { + .erase = rawnand_erase, + .markbad = rawnand_markbad, + .isbad = rawnand_isbad, +}; + /** * nand_scan_tail - Scan for the NAND device * @chip: NAND chip object @@ -5687,7 +5760,7 @@ static int nand_scan_tail(struct nand_chip *chip) chip->subpagesize = mtd->writesize >> mtd->subpage_sft; /* Invalidate the pagebuffer reference */ - chip->pagebuf = -1; + chip->pagecache.page = -1; /* Large page NAND with SOFT_ECC should support subpage reads */ switch (ecc->mode) { @@ -5700,10 +5773,15 @@ static int nand_scan_tail(struct nand_chip *chip) break; } + ret = nanddev_init(&chip->base, &rawnand_ops, mtd->owner); + if (ret) + goto err_nand_manuf_cleanup; + + /* Adjust the MTD_CAP_ flags when NAND_ROM is set. */ + if (chip->options & NAND_ROM) + mtd->flags = MTD_CAP_ROM; + /* Fill in remaining MTD driver data */ - mtd->type = nand_is_slc(chip) ? MTD_NANDFLASH : MTD_MLCNANDFLASH; - mtd->flags = (chip->options & NAND_ROM) ? MTD_CAP_ROM : - MTD_CAP_NANDFLASH; mtd->_erase = nand_erase; mtd->_point = NULL; mtd->_unpoint = NULL; @@ -5719,8 +5797,7 @@ static int nand_scan_tail(struct nand_chip *chip) mtd->_block_isreserved = nand_block_isreserved; mtd->_block_isbad = nand_block_isbad; mtd->_block_markbad = nand_block_markbad; - mtd->_max_bad_blocks = nand_max_bad_blocks; - mtd->writebufsize = mtd->writesize; + mtd->_max_bad_blocks = nanddev_mtd_max_bad_blocks; /* * Initialize bitflip_threshold to its default prior scan_bbt() call. @@ -5733,13 +5810,13 @@ static int nand_scan_tail(struct nand_chip *chip) /* Initialize the ->data_interface field. */ ret = nand_init_data_interface(chip); if (ret) - goto err_nand_manuf_cleanup; + goto err_nanddev_cleanup; /* Enter fastest possible mode on all dies. */ - for (i = 0; i < chip->numchips; i++) { + for (i = 0; i < nanddev_ntargets(&chip->base); i++) { ret = nand_setup_data_interface(chip, i); if (ret) - goto err_nand_manuf_cleanup; + goto err_nanddev_cleanup; } /* Check, if we should skip the bad block table scan */ @@ -5749,11 +5826,14 @@ static int nand_scan_tail(struct nand_chip *chip) /* Build bad block table */ ret = nand_create_bbt(chip); if (ret) - goto err_nand_manuf_cleanup; + goto err_nanddev_cleanup; return 0; +err_nanddev_cleanup: + nanddev_cleanup(&chip->base); + err_nand_manuf_cleanup: nand_manufacturer_cleanup(chip); diff --git a/drivers/mtd/nand/raw/nand_bbt.c b/drivers/mtd/nand/raw/nand_bbt.c index 19a2b563acdf..fd3c10216eda 100644 --- a/drivers/mtd/nand/raw/nand_bbt.c +++ b/drivers/mtd/nand/raw/nand_bbt.c @@ -264,18 +264,19 @@ static int read_abs_bbt(struct nand_chip *this, uint8_t *buf, struct nand_bbt_descr *td, int chip) { struct mtd_info *mtd = nand_to_mtd(this); + u64 targetsize = nanddev_target_size(&this->base); int res = 0, i; if (td->options & NAND_BBT_PERCHIP) { int offs = 0; - for (i = 0; i < this->numchips; i++) { + for (i = 0; i < nanddev_ntargets(&this->base); i++) { if (chip == -1 || chip == i) res = read_bbt(this, buf, td->pages[i], - this->chipsize >> this->bbt_erase_shift, + targetsize >> this->bbt_erase_shift, td, offs); if (res) return res; - offs += this->chipsize >> this->bbt_erase_shift; + offs += targetsize >> this->bbt_erase_shift; } } else { res = read_bbt(this, buf, td->pages[0], @@ -415,11 +416,12 @@ static void read_abs_bbts(struct nand_chip *this, uint8_t *buf, /* Scan a given block partially */ static int scan_block_fast(struct nand_chip *this, struct nand_bbt_descr *bd, - loff_t offs, uint8_t *buf, int numpages) + loff_t offs, uint8_t *buf) { struct mtd_info *mtd = nand_to_mtd(this); + struct mtd_oob_ops ops; - int j, ret; + int ret, page_offset; ops.ooblen = mtd->oobsize; ops.oobbuf = buf; @@ -427,12 +429,15 @@ static int scan_block_fast(struct nand_chip *this, struct nand_bbt_descr *bd, ops.datbuf = NULL; ops.mode = MTD_OPS_PLACE_OOB; - for (j = 0; j < numpages; j++) { + page_offset = nand_bbm_get_next_page(this, 0); + + while (page_offset >= 0) { /* * Read the full oob until read_oob is fixed to handle single * byte reads for 16 bit buswidth. */ - ret = mtd_read_oob(mtd, offs, &ops); + ret = mtd_read_oob(mtd, offs + (page_offset * mtd->writesize), + &ops); /* Ignore ECC errors when checking for BBM */ if (ret && !mtd_is_bitflip_or_eccerr(ret)) return ret; @@ -440,8 +445,9 @@ static int scan_block_fast(struct nand_chip *this, struct nand_bbt_descr *bd, if (check_short_pattern(buf, bd)) return 1; - offs += mtd->writesize; + page_offset = nand_bbm_get_next_page(this, page_offset + 1); } + return 0; } @@ -459,43 +465,35 @@ static int scan_block_fast(struct nand_chip *this, struct nand_bbt_descr *bd, static int create_bbt(struct nand_chip *this, uint8_t *buf, struct nand_bbt_descr *bd, int chip) { + u64 targetsize = nanddev_target_size(&this->base); struct mtd_info *mtd = nand_to_mtd(this); - int i, numblocks, numpages; - int startblock; + int i, numblocks, startblock; loff_t from; pr_info("Scanning device for bad blocks\n"); - if (bd->options & NAND_BBT_SCAN2NDPAGE) - numpages = 2; - else - numpages = 1; - if (chip == -1) { numblocks = mtd->size >> this->bbt_erase_shift; startblock = 0; from = 0; } else { - if (chip >= this->numchips) { + if (chip >= nanddev_ntargets(&this->base)) { pr_warn("create_bbt(): chipnr (%d) > available chips (%d)\n", - chip + 1, this->numchips); + chip + 1, nanddev_ntargets(&this->base)); return -EINVAL; } - numblocks = this->chipsize >> this->bbt_erase_shift; + numblocks = targetsize >> this->bbt_erase_shift; startblock = chip * numblocks; numblocks += startblock; from = (loff_t)startblock << this->bbt_erase_shift; } - if (this->bbt_options & NAND_BBT_SCANLASTPAGE) - from += mtd->erasesize - (mtd->writesize * numpages); - for (i = startblock; i < numblocks; i++) { int ret; BUG_ON(bd->options & NAND_BBT_NO_OOB); - ret = scan_block_fast(this, bd, from, buf, numpages); + ret = scan_block_fast(this, bd, from, buf); if (ret < 0) return ret; @@ -529,6 +527,7 @@ static int create_bbt(struct nand_chip *this, uint8_t *buf, static int search_bbt(struct nand_chip *this, uint8_t *buf, struct nand_bbt_descr *td) { + u64 targetsize = nanddev_target_size(&this->base); struct mtd_info *mtd = nand_to_mtd(this); int i, chips; int startblock, block, dir; @@ -547,8 +546,8 @@ static int search_bbt(struct nand_chip *this, uint8_t *buf, /* Do we have a bbt per chip? */ if (td->options & NAND_BBT_PERCHIP) { - chips = this->numchips; - bbtblocks = this->chipsize >> this->bbt_erase_shift; + chips = nanddev_ntargets(&this->base); + bbtblocks = targetsize >> this->bbt_erase_shift; startblock &= bbtblocks - 1; } else { chips = 1; @@ -576,7 +575,7 @@ static int search_bbt(struct nand_chip *this, uint8_t *buf, break; } } - startblock += this->chipsize >> this->bbt_erase_shift; + startblock += targetsize >> this->bbt_erase_shift; } /* Check, if we found a bbt for each requested chip */ for (i = 0; i < chips; i++) { @@ -626,6 +625,7 @@ static void search_read_bbts(struct nand_chip *this, uint8_t *buf, static int get_bbt_block(struct nand_chip *this, struct nand_bbt_descr *td, struct nand_bbt_descr *md, int chip) { + u64 targetsize = nanddev_target_size(&this->base); int startblock, dir, page, numblocks, i; /* @@ -637,9 +637,9 @@ static int get_bbt_block(struct nand_chip *this, struct nand_bbt_descr *td, return td->pages[chip] >> (this->bbt_erase_shift - this->page_shift); - numblocks = (int)(this->chipsize >> this->bbt_erase_shift); + numblocks = (int)(targetsize >> this->bbt_erase_shift); if (!(td->options & NAND_BBT_PERCHIP)) - numblocks *= this->numchips; + numblocks *= nanddev_ntargets(&this->base); /* * Automatic placement of the bad block table. Search direction @@ -717,6 +717,7 @@ static int write_bbt(struct nand_chip *this, uint8_t *buf, struct nand_bbt_descr *td, struct nand_bbt_descr *md, int chipsel) { + u64 targetsize = nanddev_target_size(&this->base); struct mtd_info *mtd = nand_to_mtd(this); struct erase_info einfo; int i, res, chip = 0; @@ -737,10 +738,10 @@ static int write_bbt(struct nand_chip *this, uint8_t *buf, rcode = 0xff; /* Write bad block table per chip rather than per device? */ if (td->options & NAND_BBT_PERCHIP) { - numblocks = (int)(this->chipsize >> this->bbt_erase_shift); + numblocks = (int)(targetsize >> this->bbt_erase_shift); /* Full device write or specific chip? */ if (chipsel == -1) { - nrchips = this->numchips; + nrchips = nanddev_ntargets(&this->base); } else { nrchips = chipsel + 1; chip = chipsel; @@ -901,7 +902,9 @@ static int write_bbt(struct nand_chip *this, uint8_t *buf, static inline int nand_memory_bbt(struct nand_chip *this, struct nand_bbt_descr *bd) { - return create_bbt(this, this->data_buf, bd, -1); + u8 *pagebuf = nand_get_data_buf(this); + + return create_bbt(this, pagebuf, bd, -1); } /** @@ -925,7 +928,7 @@ static int check_create(struct nand_chip *this, uint8_t *buf, /* Do we have a bbt per chip? */ if (td->options & NAND_BBT_PERCHIP) - chips = this->numchips; + chips = nanddev_ntargets(&this->base); else chips = 1; @@ -1097,14 +1100,15 @@ static int nand_update_bbt(struct nand_chip *this, loff_t offs) */ static void mark_bbt_region(struct nand_chip *this, struct nand_bbt_descr *td) { + u64 targetsize = nanddev_target_size(&this->base); struct mtd_info *mtd = nand_to_mtd(this); int i, j, chips, block, nrblocks, update; uint8_t oldval; /* Do we have a bbt per chip? */ if (td->options & NAND_BBT_PERCHIP) { - chips = this->numchips; - nrblocks = (int)(this->chipsize >> this->bbt_erase_shift); + chips = nanddev_ntargets(&this->base); + nrblocks = (int)(targetsize >> this->bbt_erase_shift); } else { chips = 1; nrblocks = (int)(mtd->size >> this->bbt_erase_shift); @@ -1157,6 +1161,7 @@ static void mark_bbt_region(struct nand_chip *this, struct nand_bbt_descr *td) */ static void verify_bbt_descr(struct nand_chip *this, struct nand_bbt_descr *bd) { + u64 targetsize = nanddev_target_size(&this->base); struct mtd_info *mtd = nand_to_mtd(this); u32 pattern_len; u32 bits; @@ -1185,7 +1190,7 @@ static void verify_bbt_descr(struct nand_chip *this, struct nand_bbt_descr *bd) } if (bd->options & NAND_BBT_PERCHIP) - table_size = this->chipsize >> this->bbt_erase_shift; + table_size = targetsize >> this->bbt_erase_shift; else table_size = mtd->size >> this->bbt_erase_shift; table_size >>= 3; diff --git a/drivers/mtd/nand/raw/nand_esmt.c b/drivers/mtd/nand/raw/nand_esmt.c index 96f039a83bc8..3338c68aaaf1 100644 --- a/drivers/mtd/nand/raw/nand_esmt.c +++ b/drivers/mtd/nand/raw/nand_esmt.c @@ -14,20 +14,20 @@ static void esmt_nand_decode_id(struct nand_chip *chip) /* Extract ECC requirements from 5th id byte. */ if (chip->id.len >= 5 && nand_is_slc(chip)) { - chip->ecc_step_ds = 512; + chip->base.eccreq.step_size = 512; switch (chip->id.data[4] & 0x3) { case 0x0: - chip->ecc_strength_ds = 4; + chip->base.eccreq.strength = 4; break; case 0x1: - chip->ecc_strength_ds = 2; + chip->base.eccreq.strength = 2; break; case 0x2: - chip->ecc_strength_ds = 1; + chip->base.eccreq.strength = 1; break; default: WARN(1, "Could not get ECC info"); - chip->ecc_step_ds = 0; + chip->base.eccreq.step_size = 0; break; } } @@ -36,7 +36,14 @@ static void esmt_nand_decode_id(struct nand_chip *chip) static int esmt_nand_init(struct nand_chip *chip) { if (nand_is_slc(chip)) - chip->bbt_options |= NAND_BBT_SCAN2NDPAGE; + /* + * It is known that some ESMT SLC NANDs have been shipped + * with the factory bad block markers in the first or last page + * of the block, instead of the first or second page. To be on + * the safe side, let's check all three locations. + */ + chip->options |= NAND_BBM_FIRSTPAGE | NAND_BBM_SECONDPAGE | + NAND_BBM_LASTPAGE; return 0; } diff --git a/drivers/mtd/nand/raw/nand_hynix.c b/drivers/mtd/nand/raw/nand_hynix.c index 343f477362d1..7c600c4d5ec8 100644 --- a/drivers/mtd/nand/raw/nand_hynix.c +++ b/drivers/mtd/nand/raw/nand_hynix.c @@ -418,24 +418,27 @@ static void hynix_nand_extract_oobsize(struct nand_chip *chip, bool valid_jedecid) { struct mtd_info *mtd = nand_to_mtd(chip); + struct nand_memory_organization *memorg; u8 oobsize; + memorg = nanddev_get_memorg(&chip->base); + oobsize = ((chip->id.data[3] >> 2) & 0x3) | ((chip->id.data[3] >> 4) & 0x4); if (valid_jedecid) { switch (oobsize) { case 0: - mtd->oobsize = 2048; + memorg->oobsize = 2048; break; case 1: - mtd->oobsize = 1664; + memorg->oobsize = 1664; break; case 2: - mtd->oobsize = 1024; + memorg->oobsize = 1024; break; case 3: - mtd->oobsize = 640; + memorg->oobsize = 640; break; default: /* @@ -450,25 +453,25 @@ static void hynix_nand_extract_oobsize(struct nand_chip *chip, } else { switch (oobsize) { case 0: - mtd->oobsize = 128; + memorg->oobsize = 128; break; case 1: - mtd->oobsize = 224; + memorg->oobsize = 224; break; case 2: - mtd->oobsize = 448; + memorg->oobsize = 448; break; case 3: - mtd->oobsize = 64; + memorg->oobsize = 64; break; case 4: - mtd->oobsize = 32; + memorg->oobsize = 32; break; case 5: - mtd->oobsize = 16; + memorg->oobsize = 16; break; case 6: - mtd->oobsize = 640; + memorg->oobsize = 640; break; default: /* @@ -492,8 +495,10 @@ static void hynix_nand_extract_oobsize(struct nand_chip *chip, * the actual OOB size for this chip is: 640 * 16k / 8k). */ if (chip->id.data[1] == 0xde) - mtd->oobsize *= mtd->writesize / SZ_8K; + memorg->oobsize *= memorg->pagesize / SZ_8K; } + + mtd->oobsize = memorg->oobsize; } static void hynix_nand_extract_ecc_requirements(struct nand_chip *chip, @@ -503,30 +508,30 @@ static void hynix_nand_extract_ecc_requirements(struct nand_chip *chip, if (valid_jedecid) { /* Reference: H27UCG8T2E datasheet */ - chip->ecc_step_ds = 1024; + chip->base.eccreq.step_size = 1024; switch (ecc_level) { case 0: - chip->ecc_step_ds = 0; - chip->ecc_strength_ds = 0; + chip->base.eccreq.step_size = 0; + chip->base.eccreq.strength = 0; break; case 1: - chip->ecc_strength_ds = 4; + chip->base.eccreq.strength = 4; break; case 2: - chip->ecc_strength_ds = 24; + chip->base.eccreq.strength = 24; break; case 3: - chip->ecc_strength_ds = 32; + chip->base.eccreq.strength = 32; break; case 4: - chip->ecc_strength_ds = 40; + chip->base.eccreq.strength = 40; break; case 5: - chip->ecc_strength_ds = 50; + chip->base.eccreq.strength = 50; break; case 6: - chip->ecc_strength_ds = 60; + chip->base.eccreq.strength = 60; break; default: /* @@ -547,14 +552,14 @@ static void hynix_nand_extract_ecc_requirements(struct nand_chip *chip, if (nand_tech < 3) { /* > 26nm, reference: H27UBG8T2A datasheet */ if (ecc_level < 5) { - chip->ecc_step_ds = 512; - chip->ecc_strength_ds = 1 << ecc_level; + chip->base.eccreq.step_size = 512; + chip->base.eccreq.strength = 1 << ecc_level; } else if (ecc_level < 7) { if (ecc_level == 5) - chip->ecc_step_ds = 2048; + chip->base.eccreq.step_size = 2048; else - chip->ecc_step_ds = 1024; - chip->ecc_strength_ds = 24; + chip->base.eccreq.step_size = 1024; + chip->base.eccreq.strength = 24; } else { /* * We should never reach this case, but if that @@ -567,14 +572,14 @@ static void hynix_nand_extract_ecc_requirements(struct nand_chip *chip, } else { /* <= 26nm, reference: H27UBG8T2B datasheet */ if (!ecc_level) { - chip->ecc_step_ds = 0; - chip->ecc_strength_ds = 0; + chip->base.eccreq.step_size = 0; + chip->base.eccreq.strength = 0; } else if (ecc_level < 5) { - chip->ecc_step_ds = 512; - chip->ecc_strength_ds = 1 << (ecc_level - 1); + chip->base.eccreq.step_size = 512; + chip->base.eccreq.strength = 1 << (ecc_level - 1); } else { - chip->ecc_step_ds = 1024; - chip->ecc_strength_ds = 24 + + chip->base.eccreq.step_size = 1024; + chip->base.eccreq.strength = 24 + (8 * (ecc_level - 5)); } } @@ -587,7 +592,7 @@ static void hynix_nand_extract_scrambling_requirements(struct nand_chip *chip, u8 nand_tech; /* We need scrambling on all TLC NANDs*/ - if (chip->bits_per_cell > 2) + if (nanddev_bits_per_cell(&chip->base) > 2) chip->options |= NAND_NEED_SCRAMBLING; /* And on MLC NANDs with sub-3xnm process */ @@ -609,9 +614,12 @@ static void hynix_nand_extract_scrambling_requirements(struct nand_chip *chip, static void hynix_nand_decode_id(struct nand_chip *chip) { struct mtd_info *mtd = nand_to_mtd(chip); + struct nand_memory_organization *memorg; bool valid_jedecid; u8 tmp; + memorg = nanddev_get_memorg(&chip->base); + /* * Exclude all SLC NANDs from this advanced detection scheme. * According to the ranges defined in several datasheets, it might @@ -625,7 +633,8 @@ static void hynix_nand_decode_id(struct nand_chip *chip) } /* Extract pagesize */ - mtd->writesize = 2048 << (chip->id.data[3] & 0x03); + memorg->pagesize = 2048 << (chip->id.data[3] & 0x03); + mtd->writesize = memorg->pagesize; tmp = (chip->id.data[3] >> 4) & 0x3; /* @@ -635,12 +644,19 @@ static void hynix_nand_decode_id(struct nand_chip *chip) * The only exception is when ID[3][4:5] == 3 and ID[3][7] == 0, in * this case the erasesize is set to 768KiB. */ - if (chip->id.data[3] & 0x80) + if (chip->id.data[3] & 0x80) { + memorg->pages_per_eraseblock = (SZ_1M << tmp) / + memorg->pagesize; mtd->erasesize = SZ_1M << tmp; - else if (tmp == 3) + } else if (tmp == 3) { + memorg->pages_per_eraseblock = (SZ_512K + SZ_256K) / + memorg->pagesize; mtd->erasesize = SZ_512K + SZ_256K; - else + } else { + memorg->pages_per_eraseblock = (SZ_128K << tmp) / + memorg->pagesize; mtd->erasesize = SZ_128K << tmp; + } /* * Modern Toggle DDR NANDs have a valid JEDECID even though they are @@ -672,9 +688,9 @@ static int hynix_nand_init(struct nand_chip *chip) int ret; if (!nand_is_slc(chip)) - chip->bbt_options |= NAND_BBT_SCANLASTPAGE; + chip->options |= NAND_BBM_LASTPAGE; else - chip->bbt_options |= NAND_BBT_SCAN2NDPAGE; + chip->options |= NAND_BBM_FIRSTPAGE | NAND_BBM_SECONDPAGE; hynix = kzalloc(sizeof(*hynix), GFP_KERNEL); if (!hynix) diff --git a/drivers/mtd/nand/raw/nand_jedec.c b/drivers/mtd/nand/raw/nand_jedec.c index 38b5dc22cb30..9b540e76f84f 100644 --- a/drivers/mtd/nand/raw/nand_jedec.c +++ b/drivers/mtd/nand/raw/nand_jedec.c @@ -22,12 +22,15 @@ int nand_jedec_detect(struct nand_chip *chip) { struct mtd_info *mtd = nand_to_mtd(chip); + struct nand_memory_organization *memorg; struct nand_jedec_params *p; struct jedec_ecc_info *ecc; int jedec_version = 0; char id[5]; int i, val, ret; + memorg = nanddev_get_memorg(&chip->base); + /* Try JEDEC for unknown chip or LP */ ret = nand_readid_op(chip, 0x40, id, sizeof(id)); if (ret || strncmp(id, "JEDEC", sizeof(id))) @@ -81,18 +84,24 @@ int nand_jedec_detect(struct nand_chip *chip) goto free_jedec_param_page; } - mtd->writesize = le32_to_cpu(p->byte_per_page); + memorg->pagesize = le32_to_cpu(p->byte_per_page); + mtd->writesize = memorg->pagesize; /* Please reference to the comment for nand_flash_detect_onfi. */ - mtd->erasesize = 1 << (fls(le32_to_cpu(p->pages_per_block)) - 1); - mtd->erasesize *= mtd->writesize; + memorg->pages_per_eraseblock = + 1 << (fls(le32_to_cpu(p->pages_per_block)) - 1); + mtd->erasesize = memorg->pages_per_eraseblock * memorg->pagesize; + + memorg->oobsize = le16_to_cpu(p->spare_bytes_per_page); + mtd->oobsize = memorg->oobsize; - mtd->oobsize = le16_to_cpu(p->spare_bytes_per_page); + memorg->luns_per_target = p->lun_count; + memorg->planes_per_lun = 1 << p->multi_plane_addr; /* Please reference to the comment for nand_flash_detect_onfi. */ - chip->chipsize = 1 << (fls(le32_to_cpu(p->blocks_per_lun)) - 1); - chip->chipsize *= (uint64_t)mtd->erasesize * p->lun_count; - chip->bits_per_cell = p->bits_per_cell; + memorg->eraseblocks_per_lun = + 1 << (fls(le32_to_cpu(p->blocks_per_lun)) - 1); + memorg->bits_per_cell = p->bits_per_cell; if (le16_to_cpu(p->features) & JEDEC_FEATURE_16_BIT_BUS) chip->options |= NAND_BUSWIDTH_16; @@ -101,8 +110,8 @@ int nand_jedec_detect(struct nand_chip *chip) ecc = &p->ecc_info[0]; if (ecc->codeword_size >= 9) { - chip->ecc_strength_ds = ecc->ecc_bits; - chip->ecc_step_ds = 1 << ecc->codeword_size; + chip->base.eccreq.strength = ecc->ecc_bits; + chip->base.eccreq.step_size = 1 << ecc->codeword_size; } else { pr_warn("Invalid codeword size\n"); } diff --git a/drivers/mtd/nand/raw/nand_macronix.c b/drivers/mtd/nand/raw/nand_macronix.c index 47d8cda547cf..e287e71347c5 100644 --- a/drivers/mtd/nand/raw/nand_macronix.c +++ b/drivers/mtd/nand/raw/nand_macronix.c @@ -62,7 +62,7 @@ static void macronix_nand_fix_broken_get_timings(struct nand_chip *chip) static int macronix_nand_init(struct nand_chip *chip) { if (nand_is_slc(chip)) - chip->bbt_options |= NAND_BBT_SCAN2NDPAGE; + chip->options |= NAND_BBM_FIRSTPAGE | NAND_BBM_SECONDPAGE; macronix_nand_fix_broken_get_timings(chip); diff --git a/drivers/mtd/nand/raw/nand_micron.c b/drivers/mtd/nand/raw/nand_micron.c index b85e1c13b79e..cbd4f09ac178 100644 --- a/drivers/mtd/nand/raw/nand_micron.c +++ b/drivers/mtd/nand/raw/nand_micron.c @@ -385,13 +385,13 @@ static int micron_supports_on_die_ecc(struct nand_chip *chip) if (!chip->parameters.onfi) return MICRON_ON_DIE_UNSUPPORTED; - if (chip->bits_per_cell != 1) + if (nanddev_bits_per_cell(&chip->base) != 1) return MICRON_ON_DIE_UNSUPPORTED; /* * We only support on-die ECC of 4/512 or 8/512 */ - if (chip->ecc_strength_ds != 4 && chip->ecc_strength_ds != 8) + if (chip->base.eccreq.strength != 4 && chip->base.eccreq.strength != 8) return MICRON_ON_DIE_UNSUPPORTED; /* 0x2 means on-die ECC is available. */ @@ -424,7 +424,7 @@ static int micron_supports_on_die_ecc(struct nand_chip *chip) /* * We only support on-die ECC of 4/512 or 8/512 */ - if (chip->ecc_strength_ds != 4 && chip->ecc_strength_ds != 8) + if (chip->base.eccreq.strength != 4 && chip->base.eccreq.strength != 8) return MICRON_ON_DIE_UNSUPPORTED; return MICRON_ON_DIE_SUPPORTED; @@ -448,7 +448,7 @@ static int micron_nand_init(struct nand_chip *chip) goto err_free_manuf_data; if (mtd->writesize == 2048) - chip->bbt_options |= NAND_BBT_SCAN2NDPAGE; + chip->options |= NAND_BBM_FIRSTPAGE | NAND_BBM_SECONDPAGE; ondie = micron_supports_on_die_ecc(chip); @@ -479,7 +479,7 @@ static int micron_nand_init(struct nand_chip *chip) * That's not needed for 8-bit ECC, because the status expose * a better approximation of the number of bitflips in a page. */ - if (chip->ecc_strength_ds == 4) { + if (chip->base.eccreq.strength == 4) { micron->ecc.rawbuf = kmalloc(mtd->writesize + mtd->oobsize, GFP_KERNEL); @@ -489,16 +489,16 @@ static int micron_nand_init(struct nand_chip *chip) } } - if (chip->ecc_strength_ds == 4) + if (chip->base.eccreq.strength == 4) mtd_set_ooblayout(mtd, µn_nand_on_die_4_ooblayout_ops); else mtd_set_ooblayout(mtd, µn_nand_on_die_8_ooblayout_ops); - chip->ecc.bytes = chip->ecc_strength_ds * 2; + chip->ecc.bytes = chip->base.eccreq.strength * 2; chip->ecc.size = 512; - chip->ecc.strength = chip->ecc_strength_ds; + chip->ecc.strength = chip->base.eccreq.strength; chip->ecc.algo = NAND_ECC_BCH; chip->ecc.read_page = micron_nand_read_page_on_die_ecc; chip->ecc.write_page = micron_nand_write_page_on_die_ecc; diff --git a/drivers/mtd/nand/raw/nand_onfi.c b/drivers/mtd/nand/raw/nand_onfi.c index d8184cf591ad..0b879bd0a68c 100644 --- a/drivers/mtd/nand/raw/nand_onfi.c +++ b/drivers/mtd/nand/raw/nand_onfi.c @@ -94,8 +94,8 @@ static int nand_flash_detect_ext_param_page(struct nand_chip *chip, goto ext_out; } - chip->ecc_strength_ds = ecc->ecc_bits; - chip->ecc_step_ds = 1 << ecc->codeword_size; + chip->base.eccreq.strength = ecc->ecc_bits; + chip->base.eccreq.step_size = 1 << ecc->codeword_size; ret = 0; ext_out: @@ -140,12 +140,15 @@ static void nand_bit_wise_majority(const void **srcbufs, int nand_onfi_detect(struct nand_chip *chip) { struct mtd_info *mtd = nand_to_mtd(chip); + struct nand_memory_organization *memorg; struct nand_onfi_params *p; struct onfi_params *onfi; int onfi_version = 0; char id[4]; int i, ret, val; + memorg = nanddev_get_memorg(&chip->base); + /* Try ONFI for unknown chip or LP */ ret = nand_readid_op(chip, 0x20, id, sizeof(id)); if (ret || strncmp(id, "ONFI", 4)) @@ -221,32 +224,36 @@ int nand_onfi_detect(struct nand_chip *chip) goto free_onfi_param_page; } - mtd->writesize = le32_to_cpu(p->byte_per_page); + memorg->pagesize = le32_to_cpu(p->byte_per_page); + mtd->writesize = memorg->pagesize; /* * pages_per_block and blocks_per_lun may not be a power-of-2 size * (don't ask me who thought of this...). MTD assumes that these * dimensions will be power-of-2, so just truncate the remaining area. */ - mtd->erasesize = 1 << (fls(le32_to_cpu(p->pages_per_block)) - 1); - mtd->erasesize *= mtd->writesize; + memorg->pages_per_eraseblock = + 1 << (fls(le32_to_cpu(p->pages_per_block)) - 1); + mtd->erasesize = memorg->pages_per_eraseblock * memorg->pagesize; - mtd->oobsize = le16_to_cpu(p->spare_bytes_per_page); + memorg->oobsize = le16_to_cpu(p->spare_bytes_per_page); + mtd->oobsize = memorg->oobsize; - /* See erasesize comment */ - chip->chipsize = 1 << (fls(le32_to_cpu(p->blocks_per_lun)) - 1); - chip->chipsize *= (uint64_t)mtd->erasesize * p->lun_count; - chip->bits_per_cell = p->bits_per_cell; + memorg->luns_per_target = p->lun_count; + memorg->planes_per_lun = 1 << p->interleaved_bits; - chip->max_bb_per_die = le16_to_cpu(p->bb_per_lun); - chip->blocks_per_die = le32_to_cpu(p->blocks_per_lun); + /* See erasesize comment */ + memorg->eraseblocks_per_lun = + 1 << (fls(le32_to_cpu(p->blocks_per_lun)) - 1); + memorg->max_bad_eraseblocks_per_lun = le32_to_cpu(p->blocks_per_lun); + memorg->bits_per_cell = p->bits_per_cell; if (le16_to_cpu(p->features) & ONFI_FEATURE_16_BIT_BUS) chip->options |= NAND_BUSWIDTH_16; if (p->ecc_bits != 0xff) { - chip->ecc_strength_ds = p->ecc_bits; - chip->ecc_step_ds = 512; + chip->base.eccreq.strength = p->ecc_bits; + chip->base.eccreq.step_size = 512; } else if (onfi_version >= 21 && (le16_to_cpu(p->features) & ONFI_FEATURE_EXT_PARAM_PAGE)) { diff --git a/drivers/mtd/nand/raw/nand_samsung.c b/drivers/mtd/nand/raw/nand_samsung.c index e46d4c492ad8..5552ce20ede0 100644 --- a/drivers/mtd/nand/raw/nand_samsung.c +++ b/drivers/mtd/nand/raw/nand_samsung.c @@ -20,6 +20,9 @@ static void samsung_nand_decode_id(struct nand_chip *chip) { struct mtd_info *mtd = nand_to_mtd(chip); + struct nand_memory_organization *memorg; + + memorg = nanddev_get_memorg(&chip->base); /* New Samsung (6 byte ID): Samsung K9GAG08U0F (p.44) */ if (chip->id.len == 6 && !nand_is_slc(chip) && @@ -27,29 +30,30 @@ static void samsung_nand_decode_id(struct nand_chip *chip) u8 extid = chip->id.data[3]; /* Get pagesize */ - mtd->writesize = 2048 << (extid & 0x03); + memorg->pagesize = 2048 << (extid & 0x03); + mtd->writesize = memorg->pagesize; extid >>= 2; /* Get oobsize */ switch (((extid >> 2) & 0x4) | (extid & 0x3)) { case 1: - mtd->oobsize = 128; + memorg->oobsize = 128; break; case 2: - mtd->oobsize = 218; + memorg->oobsize = 218; break; case 3: - mtd->oobsize = 400; + memorg->oobsize = 400; break; case 4: - mtd->oobsize = 436; + memorg->oobsize = 436; break; case 5: - mtd->oobsize = 512; + memorg->oobsize = 512; break; case 6: - mtd->oobsize = 640; + memorg->oobsize = 640; break; default: /* @@ -62,31 +66,37 @@ static void samsung_nand_decode_id(struct nand_chip *chip) break; } + mtd->oobsize = memorg->oobsize; + /* Get blocksize */ extid >>= 2; + memorg->pages_per_eraseblock = (128 * 1024) << + (((extid >> 1) & 0x04) | + (extid & 0x03)) / + memorg->pagesize; mtd->erasesize = (128 * 1024) << (((extid >> 1) & 0x04) | (extid & 0x03)); /* Extract ECC requirements from 5th id byte*/ extid = (chip->id.data[4] >> 4) & 0x07; if (extid < 5) { - chip->ecc_step_ds = 512; - chip->ecc_strength_ds = 1 << extid; + chip->base.eccreq.step_size = 512; + chip->base.eccreq.strength = 1 << extid; } else { - chip->ecc_step_ds = 1024; + chip->base.eccreq.step_size = 1024; switch (extid) { case 5: - chip->ecc_strength_ds = 24; + chip->base.eccreq.strength = 24; break; case 6: - chip->ecc_strength_ds = 40; + chip->base.eccreq.strength = 40; break; case 7: - chip->ecc_strength_ds = 60; + chip->base.eccreq.strength = 60; break; default: WARN(1, "Could not decode ECC info"); - chip->ecc_step_ds = 0; + chip->base.eccreq.step_size = 0; } } } else { @@ -96,8 +106,8 @@ static void samsung_nand_decode_id(struct nand_chip *chip) switch (chip->id.data[1]) { /* K9F4G08U0D-S[I|C]B0(T00) */ case 0xDC: - chip->ecc_step_ds = 512; - chip->ecc_strength_ds = 1; + chip->base.eccreq.step_size = 512; + chip->base.eccreq.strength = 1; break; /* K9F1G08U0E 21nm chips do not support subpage write */ @@ -121,9 +131,9 @@ static int samsung_nand_init(struct nand_chip *chip) chip->options |= NAND_SAMSUNG_LP_OPTIONS; if (!nand_is_slc(chip)) - chip->bbt_options |= NAND_BBT_SCANLASTPAGE; + chip->options |= NAND_BBM_LASTPAGE; else - chip->bbt_options |= NAND_BBT_SCAN2NDPAGE; + chip->options |= NAND_BBM_FIRSTPAGE | NAND_BBM_SECONDPAGE; return 0; } diff --git a/drivers/mtd/nand/raw/nand_toshiba.c b/drivers/mtd/nand/raw/nand_toshiba.c index d068163b64b3..74ffcae48726 100644 --- a/drivers/mtd/nand/raw/nand_toshiba.c +++ b/drivers/mtd/nand/raw/nand_toshiba.c @@ -101,6 +101,9 @@ static void toshiba_nand_benand_init(struct nand_chip *chip) static void toshiba_nand_decode_id(struct nand_chip *chip) { struct mtd_info *mtd = nand_to_mtd(chip); + struct nand_memory_organization *memorg; + + memorg = nanddev_get_memorg(&chip->base); nand_decode_ext_id(chip); @@ -114,8 +117,10 @@ static void toshiba_nand_decode_id(struct nand_chip *chip) */ if (chip->id.len >= 6 && nand_is_slc(chip) && (chip->id.data[5] & 0x7) == 0x6 /* 24nm */ && - !(chip->id.data[4] & 0x80) /* !BENAND */) - mtd->oobsize = 32 * mtd->writesize >> 9; + !(chip->id.data[4] & 0x80) /* !BENAND */) { + memorg->oobsize = 32 * memorg->pagesize >> 9; + mtd->oobsize = memorg->oobsize; + } /* * Extract ECC requirements from 6th id byte. @@ -125,20 +130,20 @@ static void toshiba_nand_decode_id(struct nand_chip *chip) * - 24nm: 8 bit ECC for each 512Byte is required. */ if (chip->id.len >= 6 && nand_is_slc(chip)) { - chip->ecc_step_ds = 512; + chip->base.eccreq.step_size = 512; switch (chip->id.data[5] & 0x7) { case 0x4: - chip->ecc_strength_ds = 1; + chip->base.eccreq.strength = 1; break; case 0x5: - chip->ecc_strength_ds = 4; + chip->base.eccreq.strength = 4; break; case 0x6: - chip->ecc_strength_ds = 8; + chip->base.eccreq.strength = 8; break; default: WARN(1, "Could not get ECC info"); - chip->ecc_step_ds = 0; + chip->base.eccreq.step_size = 0; break; } } @@ -147,7 +152,7 @@ static void toshiba_nand_decode_id(struct nand_chip *chip) static int toshiba_nand_init(struct nand_chip *chip) { if (nand_is_slc(chip)) - chip->bbt_options |= NAND_BBT_SCAN2NDPAGE; + chip->options |= NAND_BBM_FIRSTPAGE | NAND_BBM_SECONDPAGE; /* Check that chip is BENAND and ECC mode is on-die */ if (nand_is_slc(chip) && chip->ecc.mode == NAND_ECC_ON_DIE && diff --git a/drivers/mtd/nand/raw/nandsim.c b/drivers/mtd/nand/raw/nandsim.c index 933d1a629c51..df63fa564082 100644 --- a/drivers/mtd/nand/raw/nandsim.c +++ b/drivers/mtd/nand/raw/nandsim.c @@ -298,6 +298,8 @@ union ns_mem { * The structure which describes all the internal simulator data. */ struct nandsim { + struct nand_chip chip; + struct nand_controller base; struct mtd_partition partitions[CONFIG_NANDSIM_MAX_PARTS]; unsigned int nbparts; @@ -644,9 +646,6 @@ static int __init init_nandsim(struct mtd_info *mtd) return -EIO; } - /* Force mtd to not do delays */ - chip->legacy.chip_delay = 0; - /* Initialize the NAND flash parameters */ ns->busw = chip->options & NAND_BUSWIDTH_16 ? 16 : 8; ns->geom.totsz = mtd->size; @@ -2076,24 +2075,6 @@ static void ns_nand_write_byte(struct nand_chip *chip, u_char byte) return; } -static void ns_hwcontrol(struct nand_chip *chip, int cmd, unsigned int bitmask) -{ - struct nandsim *ns = nand_get_controller_data(chip); - - ns->lines.cle = bitmask & NAND_CLE ? 1 : 0; - ns->lines.ale = bitmask & NAND_ALE ? 1 : 0; - ns->lines.ce = bitmask & NAND_NCE ? 1 : 0; - - if (cmd != NAND_CMD_NONE) - ns_nand_write_byte(chip, cmd); -} - -static int ns_device_ready(struct nand_chip *chip) -{ - NS_DBG("device_ready\n"); - return 1; -} - static void ns_nand_write_buf(struct nand_chip *chip, const u_char *buf, int len) { @@ -2145,7 +2126,7 @@ static void ns_nand_read_buf(struct nand_chip *chip, u_char *buf, int len) int i; for (i = 0; i < len; i++) - buf[i] = chip->legacy.read_byte(chip); + buf[i] = ns_nand_read_byte(chip); return; } @@ -2168,6 +2149,46 @@ static void ns_nand_read_buf(struct nand_chip *chip, u_char *buf, int len) return; } +static int ns_exec_op(struct nand_chip *chip, const struct nand_operation *op, + bool check_only) +{ + int i; + unsigned int op_id; + const struct nand_op_instr *instr = NULL; + struct nandsim *ns = nand_get_controller_data(chip); + + ns->lines.ce = 1; + + for (op_id = 0; op_id < op->ninstrs; op_id++) { + instr = &op->instrs[op_id]; + ns->lines.cle = 0; + ns->lines.ale = 0; + + switch (instr->type) { + case NAND_OP_CMD_INSTR: + ns->lines.cle = 1; + ns_nand_write_byte(chip, instr->ctx.cmd.opcode); + break; + case NAND_OP_ADDR_INSTR: + ns->lines.ale = 1; + for (i = 0; i < instr->ctx.addr.naddrs; i++) + ns_nand_write_byte(chip, instr->ctx.addr.addrs[i]); + break; + case NAND_OP_DATA_IN_INSTR: + ns_nand_read_buf(chip, instr->ctx.data.buf.in, instr->ctx.data.len); + break; + case NAND_OP_DATA_OUT_INSTR: + ns_nand_write_buf(chip, instr->ctx.data.buf.out, instr->ctx.data.len); + break; + case NAND_OP_WAITRDY_INSTR: + /* we are always ready */ + break; + } + } + + return 0; +} + static int ns_attach_chip(struct nand_chip *chip) { unsigned int eccsteps, eccbytes; @@ -2208,6 +2229,7 @@ static int ns_attach_chip(struct nand_chip *chip) static const struct nand_controller_ops ns_controller_ops = { .attach_chip = ns_attach_chip, + .exec_op = ns_exec_op, }; /* @@ -2216,7 +2238,7 @@ static const struct nand_controller_ops ns_controller_ops = { static int __init ns_init_module(void) { struct nand_chip *chip; - struct nandsim *nand; + struct nandsim *ns; int retval = -ENOMEM, i; if (bus_width != 8 && bus_width != 16) { @@ -2224,25 +2246,15 @@ static int __init ns_init_module(void) return -EINVAL; } - /* Allocate and initialize mtd_info, nand_chip and nandsim structures */ - chip = kzalloc(sizeof(struct nand_chip) + sizeof(struct nandsim), - GFP_KERNEL); - if (!chip) { + ns = kzalloc(sizeof(struct nandsim), GFP_KERNEL); + if (!ns) { NS_ERR("unable to allocate core structures.\n"); return -ENOMEM; } + chip = &ns->chip; nsmtd = nand_to_mtd(chip); - nand = (struct nandsim *)(chip + 1); - nand_set_controller_data(chip, (void *)nand); + nand_set_controller_data(chip, (void *)ns); - /* - * Register simulator's callbacks. - */ - chip->legacy.cmd_ctrl = ns_hwcontrol; - chip->legacy.read_byte = ns_nand_read_byte; - chip->legacy.dev_ready = ns_device_ready; - chip->legacy.write_buf = ns_nand_write_buf; - chip->legacy.read_buf = ns_nand_read_buf; chip->ecc.mode = NAND_ECC_SOFT; chip->ecc.algo = NAND_ECC_HAMMING; /* The NAND_SKIP_BBTSCAN option is necessary for 'overridesize' */ @@ -2251,9 +2263,11 @@ static int __init ns_init_module(void) switch (bbt) { case 2: - chip->bbt_options |= NAND_BBT_NO_OOB; + chip->bbt_options |= NAND_BBT_NO_OOB; + /* fall through */ case 1: - chip->bbt_options |= NAND_BBT_USE_FLASH; + chip->bbt_options |= NAND_BBT_USE_FLASH; + /* fall through */ case 0: break; default: @@ -2266,19 +2280,19 @@ static int __init ns_init_module(void) * the initial ID read command correctly */ if (id_bytes[6] != 0xFF || id_bytes[7] != 0xFF) - nand->geom.idbytes = 8; + ns->geom.idbytes = 8; else if (id_bytes[4] != 0xFF || id_bytes[5] != 0xFF) - nand->geom.idbytes = 6; + ns->geom.idbytes = 6; else if (id_bytes[2] != 0xFF || id_bytes[3] != 0xFF) - nand->geom.idbytes = 4; + ns->geom.idbytes = 4; else - nand->geom.idbytes = 2; - nand->regs.status = NS_STATUS_OK(nand); - nand->nxstate = STATE_UNKNOWN; - nand->options |= OPT_PAGE512; /* temporary value */ - memcpy(nand->ids, id_bytes, sizeof(nand->ids)); + ns->geom.idbytes = 2; + ns->regs.status = NS_STATUS_OK(ns); + ns->nxstate = STATE_UNKNOWN; + ns->options |= OPT_PAGE512; /* temporary value */ + memcpy(ns->ids, id_bytes, sizeof(ns->ids)); if (bus_width == 16) { - nand->busw = 16; + ns->busw = 16; chip->options |= NAND_BUSWIDTH_16; } @@ -2293,7 +2307,10 @@ static int __init ns_init_module(void) if ((retval = parse_gravepages()) != 0) goto error; - chip->legacy.dummy_controller.ops = &ns_controller_ops; + nand_controller_init(&ns->base); + ns->base.ops = &ns_controller_ops; + chip->controller = &ns->base; + retval = nand_scan(chip, 1); if (retval) { NS_ERR("Could not scan NAND Simulator device\n"); @@ -2302,16 +2319,23 @@ static int __init ns_init_module(void) if (overridesize) { uint64_t new_size = (uint64_t)nsmtd->erasesize << overridesize; + struct nand_memory_organization *memorg; + u64 targetsize; + + memorg = nanddev_get_memorg(&chip->base); + if (new_size >> overridesize != nsmtd->erasesize) { NS_ERR("overridesize is too big\n"); retval = -EINVAL; goto err_exit; } + /* N.B. This relies on nand_scan not doing anything with the size before we change it */ nsmtd->size = new_size; - chip->chipsize = new_size; + memorg->eraseblocks_per_lun = 1 << overridesize; + targetsize = nanddev_target_size(&chip->base); chip->chip_shift = ffs(nsmtd->erasesize) + overridesize - 1; - chip->pagemask = (chip->chipsize >> chip->page_shift) - 1; + chip->pagemask = (targetsize >> chip->page_shift) - 1; } if ((retval = setup_wear_reporting(nsmtd)) != 0) @@ -2323,27 +2347,27 @@ static int __init ns_init_module(void) if ((retval = nand_create_bbt(chip)) != 0) goto err_exit; - if ((retval = parse_badblocks(nand, nsmtd)) != 0) + if ((retval = parse_badblocks(ns, nsmtd)) != 0) goto err_exit; /* Register NAND partitions */ - retval = mtd_device_register(nsmtd, &nand->partitions[0], - nand->nbparts); + retval = mtd_device_register(nsmtd, &ns->partitions[0], + ns->nbparts); if (retval != 0) goto err_exit; - if ((retval = nandsim_debugfs_create(nand)) != 0) + if ((retval = nandsim_debugfs_create(ns)) != 0) goto err_exit; return 0; err_exit: - free_nandsim(nand); + free_nandsim(ns); nand_release(chip); - for (i = 0;i < ARRAY_SIZE(nand->partitions); ++i) - kfree(nand->partitions[i].name); + for (i = 0;i < ARRAY_SIZE(ns->partitions); ++i) + kfree(ns->partitions[i].name); error: - kfree(chip); + kfree(ns); free_lists(); return retval; @@ -2364,7 +2388,7 @@ static void __exit ns_cleanup_module(void) nand_release(chip); /* Unregister driver */ for (i = 0;i < ARRAY_SIZE(ns->partitions); ++i) kfree(ns->partitions[i].name); - kfree(mtd_to_nand(nsmtd)); /* Free other structures */ + kfree(ns); /* Free other structures */ free_lists(); } diff --git a/drivers/mtd/nand/raw/nuc900_nand.c b/drivers/mtd/nand/raw/nuc900_nand.c index 38b1994e7ed3..56fa84029482 100644 --- a/drivers/mtd/nand/raw/nuc900_nand.c +++ b/drivers/mtd/nand/raw/nuc900_nand.c @@ -192,8 +192,9 @@ static void nuc900_nand_command_lp(struct nand_chip *chip, return; case NAND_CMD_READ0: - write_cmd_reg(nand, NAND_CMD_READSTART); + /* fall through */ + default: if (!chip->legacy.dev_ready) { diff --git a/drivers/mtd/nand/raw/omap2.c b/drivers/mtd/nand/raw/omap2.c index 8f280a2962c8..a9a275342a41 100644 --- a/drivers/mtd/nand/raw/omap2.c +++ b/drivers/mtd/nand/raw/omap2.c @@ -1725,9 +1725,9 @@ static bool omap2_nand_ecc_check(struct omap_nand_info *info) break; } - if (ecc_needs_bch && !IS_ENABLED(CONFIG_MTD_NAND_ECC_BCH)) { + if (ecc_needs_bch && !IS_ENABLED(CONFIG_MTD_NAND_ECC_SW_BCH)) { dev_err(&info->pdev->dev, - "CONFIG_MTD_NAND_ECC_BCH not enabled\n"); + "CONFIG_MTD_NAND_ECC_SW_BCH not enabled\n"); return false; } if (ecc_needs_omap_bch && !IS_ENABLED(CONFIG_MTD_NAND_OMAP_BCH)) { diff --git a/drivers/mtd/nand/raw/omap_elm.c b/drivers/mtd/nand/raw/omap_elm.c index a3f32f939cc1..94c6401ef32f 100644 --- a/drivers/mtd/nand/raw/omap_elm.c +++ b/drivers/mtd/nand/raw/omap_elm.c @@ -465,11 +465,13 @@ static int elm_context_save(struct elm_info *info) ELM_SYNDROME_FRAGMENT_5 + offset); regs->elm_syndrome_fragment_4[i] = elm_read_reg(info, ELM_SYNDROME_FRAGMENT_4 + offset); + /* fall through */ case BCH8_ECC: regs->elm_syndrome_fragment_3[i] = elm_read_reg(info, ELM_SYNDROME_FRAGMENT_3 + offset); regs->elm_syndrome_fragment_2[i] = elm_read_reg(info, ELM_SYNDROME_FRAGMENT_2 + offset); + /* fall through */ case BCH4_ECC: regs->elm_syndrome_fragment_1[i] = elm_read_reg(info, ELM_SYNDROME_FRAGMENT_1 + offset); @@ -511,11 +513,13 @@ static int elm_context_restore(struct elm_info *info) regs->elm_syndrome_fragment_5[i]); elm_write_reg(info, ELM_SYNDROME_FRAGMENT_4 + offset, regs->elm_syndrome_fragment_4[i]); + /* fall through */ case BCH8_ECC: elm_write_reg(info, ELM_SYNDROME_FRAGMENT_3 + offset, regs->elm_syndrome_fragment_3[i]); elm_write_reg(info, ELM_SYNDROME_FRAGMENT_2 + offset, regs->elm_syndrome_fragment_2[i]); + /* fall through */ case BCH4_ECC: elm_write_reg(info, ELM_SYNDROME_FRAGMENT_1 + offset, regs->elm_syndrome_fragment_1[i]); diff --git a/drivers/mtd/nand/raw/qcom_nandc.c b/drivers/mtd/nand/raw/qcom_nandc.c index 920e7375084f..6ead55e05b80 100644 --- a/drivers/mtd/nand/raw/qcom_nandc.c +++ b/drivers/mtd/nand/raw/qcom_nandc.c @@ -1680,14 +1680,12 @@ check_for_erased_page(struct qcom_nand_host *host, u8 *data_buf, u8 *cw_data_buf, *cw_oob_buf; int cw, data_size, oob_size, ret = 0; - if (!data_buf) { - data_buf = chip->data_buf; - chip->pagebuf = -1; - } + if (!data_buf) + data_buf = nand_get_data_buf(chip); if (!oob_buf) { + nand_get_data_buf(chip); oob_buf = chip->oob_poi; - chip->pagebuf = -1; } for_each_set_bit(cw, &uncorrectable_cws, ecc->steps) { diff --git a/drivers/mtd/nand/raw/sh_flctl.c b/drivers/mtd/nand/raw/sh_flctl.c index cf6b1be1cf9c..e509c93737c4 100644 --- a/drivers/mtd/nand/raw/sh_flctl.c +++ b/drivers/mtd/nand/raw/sh_flctl.c @@ -101,14 +101,12 @@ static const struct mtd_ooblayout_ops flctl_4secc_oob_largepage_ops = { static uint8_t scan_ff_pattern[] = { 0xff, 0xff }; static struct nand_bbt_descr flctl_4secc_smallpage = { - .options = NAND_BBT_SCAN2NDPAGE, .offs = 11, .len = 1, .pattern = scan_ff_pattern, }; static struct nand_bbt_descr flctl_4secc_largepage = { - .options = NAND_BBT_SCAN2NDPAGE, .offs = 0, .len = 2, .pattern = scan_ff_pattern, @@ -986,6 +984,7 @@ static void flctl_read_buf(struct nand_chip *chip, uint8_t *buf, int len) static int flctl_chip_attach_chip(struct nand_chip *chip) { + u64 targetsize = nanddev_target_size(&chip->base); struct mtd_info *mtd = nand_to_mtd(chip); struct sh_flctl *flctl = mtd_to_flctl(mtd); @@ -998,11 +997,11 @@ static int flctl_chip_attach_chip(struct nand_chip *chip) if (mtd->writesize == 512) { flctl->page_size = 0; - if (chip->chipsize > (32 << 20)) { + if (targetsize > (32 << 20)) { /* big than 32MB */ flctl->rw_ADRCNT = ADRCNT_4; flctl->erase_ADRCNT = ADRCNT_3; - } else if (chip->chipsize > (2 << 16)) { + } else if (targetsize > (2 << 16)) { /* big than 128KB */ flctl->rw_ADRCNT = ADRCNT_3; flctl->erase_ADRCNT = ADRCNT_2; @@ -1012,11 +1011,11 @@ static int flctl_chip_attach_chip(struct nand_chip *chip) } } else { flctl->page_size = 1; - if (chip->chipsize > (128 << 20)) { + if (targetsize > (128 << 20)) { /* big than 128MB */ flctl->rw_ADRCNT = ADRCNT2_E; flctl->erase_ADRCNT = ADRCNT_3; - } else if (chip->chipsize > (8 << 16)) { + } else if (targetsize > (8 << 16)) { /* big than 512KB */ flctl->rw_ADRCNT = ADRCNT_4; flctl->erase_ADRCNT = ADRCNT_2; @@ -1178,6 +1177,8 @@ static int flctl_probe(struct platform_device *pdev) if (pdata->flcmncr_val & SEL_16BIT) nand->options |= NAND_BUSWIDTH_16; + nand->options |= NAND_BBM_FIRSTPAGE | NAND_BBM_SECONDPAGE; + pm_runtime_enable(&pdev->dev); pm_runtime_resume(&pdev->dev); diff --git a/drivers/mtd/nand/raw/sunxi_nand.c b/drivers/mtd/nand/raw/sunxi_nand.c index 4282bc477761..b021a5720b42 100644 --- a/drivers/mtd/nand/raw/sunxi_nand.c +++ b/drivers/mtd/nand/raw/sunxi_nand.c @@ -42,7 +42,8 @@ #define NFC_REG_CMD 0x0024 #define NFC_REG_RCMD_SET 0x0028 #define NFC_REG_WCMD_SET 0x002C -#define NFC_REG_IO_DATA 0x0030 +#define NFC_REG_A10_IO_DATA 0x0030 +#define NFC_REG_A23_IO_DATA 0x0300 #define NFC_REG_ECC_CTL 0x0034 #define NFC_REG_ECC_ST 0x0038 #define NFC_REG_DEBUG 0x003C @@ -200,6 +201,22 @@ static inline struct sunxi_nand_chip *to_sunxi_nand(struct nand_chip *nand) return container_of(nand, struct sunxi_nand_chip, nand); } +/* + * NAND Controller capabilities structure: stores NAND controller capabilities + * for distinction between compatible strings. + * + * @sram_through_ahb: On A23, we choose to access the internal RAM through AHB + * instead of MBUS (less configuration). A10, A10s, A13 and + * A20 use the MBUS but no extra configuration is needed. + * @reg_io_data: I/O data register + * @dma_maxburst: DMA maxburst + */ +struct sunxi_nfc_caps { + bool sram_through_ahb; + unsigned int reg_io_data; + unsigned int dma_maxburst; +}; + /** * struct sunxi_nfc - stores sunxi NAND controller information * @@ -228,6 +245,7 @@ struct sunxi_nfc { struct list_head chips; struct completion complete; struct dma_chan *dmac; + const struct sunxi_nfc_caps *caps; }; static inline struct sunxi_nfc *to_sunxi_nfc(struct nand_controller *ctrl) @@ -350,10 +368,29 @@ static int sunxi_nfc_dma_op_prepare(struct sunxi_nfc *nfc, const void *buf, goto err_unmap_buf; } - writel(readl(nfc->regs + NFC_REG_CTL) | NFC_RAM_METHOD, - nfc->regs + NFC_REG_CTL); + /* + * On A23, we suppose the "internal RAM" (p.12 of the NFC user manual) + * refers to the NAND controller's internal SRAM. This memory is mapped + * and so is accessible from the AHB. It seems that it can also be + * accessed by the MBUS. MBUS accesses are mandatory when using the + * internal DMA instead of the external DMA engine. + * + * During DMA I/O operation, either we access this memory from the AHB + * by clearing the NFC_RAM_METHOD bit, or we set the bit and use the + * MBUS. In this case, we should also configure the MBUS DMA length + * NFC_REG_MDMA_CNT(0xC4) to be chunksize * nchunks. NAND I/O over MBUS + * are also limited to 32kiB pages. + */ + if (nfc->caps->sram_through_ahb) + writel(readl(nfc->regs + NFC_REG_CTL) & ~NFC_RAM_METHOD, + nfc->regs + NFC_REG_CTL); + else + writel(readl(nfc->regs + NFC_REG_CTL) | NFC_RAM_METHOD, + nfc->regs + NFC_REG_CTL); + writel(nchunks, nfc->regs + NFC_REG_SECTOR_NUM); writel(chunksize, nfc->regs + NFC_REG_CNT); + dmat = dmaengine_submit(dmad); ret = dma_submit_error(dmat); @@ -1313,20 +1350,19 @@ pio_fallback: static int sunxi_nfc_hw_ecc_read_oob(struct nand_chip *nand, int page) { - nand->pagebuf = -1; + u8 *buf = nand_get_data_buf(nand); - return nand->ecc.read_page(nand, nand->data_buf, 1, page); + return nand->ecc.read_page(nand, buf, 1, page); } static int sunxi_nfc_hw_ecc_write_oob(struct nand_chip *nand, int page) { struct mtd_info *mtd = nand_to_mtd(nand); + u8 *buf = nand_get_data_buf(nand); int ret; - nand->pagebuf = -1; - - memset(nand->data_buf, 0xff, mtd->writesize); - ret = nand->ecc.write_page(nand, nand->data_buf, 1, page); + memset(buf, 0xff, mtd->writesize); + ret = nand->ecc.write_page(nand, buf, 1, page); if (ret) return ret; @@ -1724,8 +1760,8 @@ static int sunxi_nand_attach_chip(struct nand_chip *nand) nand->options |= NAND_SUBPAGE_READ; if (!ecc->size) { - ecc->size = nand->ecc_step_ds; - ecc->strength = nand->ecc_strength_ds; + ecc->size = nand->base.eccreq.step_size; + ecc->strength = nand->base.eccreq.strength; } if (!ecc->size || !ecc->strength) @@ -2088,6 +2124,12 @@ static int sunxi_nfc_probe(struct platform_device *pdev) goto out_mod_clk_unprepare; } + nfc->caps = of_device_get_match_data(&pdev->dev); + if (!nfc->caps) { + ret = -EINVAL; + goto out_ahb_reset_reassert; + } + ret = sunxi_nfc_rst(nfc); if (ret) goto out_ahb_reset_reassert; @@ -2102,12 +2144,12 @@ static int sunxi_nfc_probe(struct platform_device *pdev) if (nfc->dmac) { struct dma_slave_config dmac_cfg = { }; - dmac_cfg.src_addr = r->start + NFC_REG_IO_DATA; + dmac_cfg.src_addr = r->start + nfc->caps->reg_io_data; dmac_cfg.dst_addr = dmac_cfg.src_addr; dmac_cfg.src_addr_width = DMA_SLAVE_BUSWIDTH_4_BYTES; dmac_cfg.dst_addr_width = dmac_cfg.src_addr_width; - dmac_cfg.src_maxburst = 4; - dmac_cfg.dst_maxburst = 4; + dmac_cfg.src_maxburst = nfc->caps->dma_maxburst; + dmac_cfg.dst_maxburst = nfc->caps->dma_maxburst; dmaengine_slave_config(nfc->dmac, &dmac_cfg); } else { dev_warn(dev, "failed to request rxtx DMA channel\n"); @@ -2152,8 +2194,26 @@ static int sunxi_nfc_remove(struct platform_device *pdev) return 0; } +static const struct sunxi_nfc_caps sunxi_nfc_a10_caps = { + .reg_io_data = NFC_REG_A10_IO_DATA, + .dma_maxburst = 4, +}; + +static const struct sunxi_nfc_caps sunxi_nfc_a23_caps = { + .sram_through_ahb = true, + .reg_io_data = NFC_REG_A23_IO_DATA, + .dma_maxburst = 8, +}; + static const struct of_device_id sunxi_nfc_ids[] = { - { .compatible = "allwinner,sun4i-a10-nand" }, + { + .compatible = "allwinner,sun4i-a10-nand", + .data = &sunxi_nfc_a10_caps, + }, + { + .compatible = "allwinner,sun8i-a23-nand-controller", + .data = &sunxi_nfc_a23_caps, + }, { /* sentinel */ } }; MODULE_DEVICE_TABLE(of, sunxi_nfc_ids); diff --git a/drivers/mtd/nand/raw/tegra_nand.c b/drivers/mtd/nand/raw/tegra_nand.c index 13be32c38194..3cc9a4c41443 100644 --- a/drivers/mtd/nand/raw/tegra_nand.c +++ b/drivers/mtd/nand/raw/tegra_nand.c @@ -853,7 +853,7 @@ static int tegra_nand_get_strength(struct nand_chip *chip, const int *strength, } else { strength_sel = strength[i]; - if (strength_sel < chip->ecc_strength_ds) + if (strength_sel < chip->base.eccreq.strength) continue; } @@ -917,9 +917,9 @@ static int tegra_nand_attach_chip(struct nand_chip *chip) chip->ecc.mode = NAND_ECC_HW; chip->ecc.size = 512; chip->ecc.steps = mtd->writesize / chip->ecc.size; - if (chip->ecc_step_ds != 512) { + if (chip->base.eccreq.step_size != 512) { dev_err(ctrl->dev, "Unsupported step size %d\n", - chip->ecc_step_ds); + chip->base.eccreq.step_size); return -EINVAL; } @@ -950,7 +950,7 @@ static int tegra_nand_attach_chip(struct nand_chip *chip) if (ret < 0) { dev_err(ctrl->dev, "No valid strength found, minimum %d\n", - chip->ecc_strength_ds); + chip->base.eccreq.strength); return ret; } diff --git a/drivers/mtd/nand/raw/vf610_nfc.c b/drivers/mtd/nand/raw/vf610_nfc.c index a662ca1970e5..6d43ddb3332f 100644 --- a/drivers/mtd/nand/raw/vf610_nfc.c +++ b/drivers/mtd/nand/raw/vf610_nfc.c @@ -850,6 +850,9 @@ static int vf610_nfc_probe(struct platform_device *pdev) } of_id = of_match_device(vf610_nfc_dt_ids, &pdev->dev); + if (!of_id) + return -ENODEV; + nfc->variant = (enum vf610_nfc_variant)of_id->data; for_each_available_child_of_node(nfc->dev->of_node, child) { diff --git a/drivers/mtd/nand/spi/core.c b/drivers/mtd/nand/spi/core.c index fa87ae28cdfe..4c15bb58c623 100644 --- a/drivers/mtd/nand/spi/core.c +++ b/drivers/mtd/nand/spi/core.c @@ -19,21 +19,6 @@ #include <linux/spi/spi.h> #include <linux/spi/spi-mem.h> -static void spinand_cache_op_adjust_colum(struct spinand_device *spinand, - const struct nand_page_io_req *req, - u16 *column) -{ - struct nand_device *nand = spinand_to_nand(spinand); - unsigned int shift; - - if (nand->memorg.planes_per_lun < 2) - return; - - /* The plane number is passed in MSB just above the column address */ - shift = fls(nand->memorg.pagesize); - *column |= req->pos.plane << shift; -} - static int spinand_read_reg_op(struct spinand_device *spinand, u8 reg, u8 *val) { struct spi_mem_op op = SPINAND_GET_FEATURE_OP(reg, @@ -227,27 +212,21 @@ static int spinand_load_page_op(struct spinand_device *spinand, static int spinand_read_from_cache_op(struct spinand_device *spinand, const struct nand_page_io_req *req) { - struct spi_mem_op op = *spinand->op_templates.read_cache; struct nand_device *nand = spinand_to_nand(spinand); struct mtd_info *mtd = nanddev_to_mtd(nand); - struct nand_page_io_req adjreq = *req; + struct spi_mem_dirmap_desc *rdesc; unsigned int nbytes = 0; void *buf = NULL; u16 column = 0; - int ret; + ssize_t ret; if (req->datalen) { - adjreq.datalen = nanddev_page_size(nand); - adjreq.dataoffs = 0; - adjreq.databuf.in = spinand->databuf; buf = spinand->databuf; - nbytes = adjreq.datalen; + nbytes = nanddev_page_size(nand); + column = 0; } if (req->ooblen) { - adjreq.ooblen = nanddev_per_page_oobsize(nand); - adjreq.ooboffs = 0; - adjreq.oobbuf.in = spinand->oobbuf; nbytes += nanddev_per_page_oobsize(nand); if (!buf) { buf = spinand->oobbuf; @@ -255,28 +234,19 @@ static int spinand_read_from_cache_op(struct spinand_device *spinand, } } - spinand_cache_op_adjust_colum(spinand, &adjreq, &column); - op.addr.val = column; + rdesc = spinand->dirmaps[req->pos.plane].rdesc; - /* - * Some controllers are limited in term of max RX data size. In this - * case, just repeat the READ_CACHE operation after updating the - * column. - */ while (nbytes) { - op.data.buf.in = buf; - op.data.nbytes = nbytes; - ret = spi_mem_adjust_op_size(spinand->spimem, &op); - if (ret) + ret = spi_mem_dirmap_read(rdesc, column, nbytes, buf); + if (ret < 0) return ret; - ret = spi_mem_exec_op(spinand->spimem, &op); - if (ret) - return ret; + if (!ret || ret > nbytes) + return -EIO; - buf += op.data.nbytes; - nbytes -= op.data.nbytes; - op.addr.val += op.data.nbytes; + nbytes -= ret; + column += ret; + buf += ret; } if (req->datalen) @@ -300,14 +270,12 @@ static int spinand_read_from_cache_op(struct spinand_device *spinand, static int spinand_write_to_cache_op(struct spinand_device *spinand, const struct nand_page_io_req *req) { - struct spi_mem_op op = *spinand->op_templates.write_cache; struct nand_device *nand = spinand_to_nand(spinand); struct mtd_info *mtd = nanddev_to_mtd(nand); - struct nand_page_io_req adjreq = *req; + struct spi_mem_dirmap_desc *wdesc; + unsigned int nbytes, column = 0; void *buf = spinand->databuf; - unsigned int nbytes; - u16 column = 0; - int ret; + ssize_t ret; /* * Looks like PROGRAM LOAD (AKA write cache) does not necessarily reset @@ -318,12 +286,6 @@ static int spinand_write_to_cache_op(struct spinand_device *spinand, */ nbytes = nanddev_page_size(nand) + nanddev_per_page_oobsize(nand); memset(spinand->databuf, 0xff, nbytes); - adjreq.dataoffs = 0; - adjreq.datalen = nanddev_page_size(nand); - adjreq.databuf.out = spinand->databuf; - adjreq.ooblen = nanddev_per_page_oobsize(nand); - adjreq.ooboffs = 0; - adjreq.oobbuf.out = spinand->oobbuf; if (req->datalen) memcpy(spinand->databuf + req->dataoffs, req->databuf.out, @@ -340,42 +302,19 @@ static int spinand_write_to_cache_op(struct spinand_device *spinand, req->ooblen); } - spinand_cache_op_adjust_colum(spinand, &adjreq, &column); + wdesc = spinand->dirmaps[req->pos.plane].wdesc; - op = *spinand->op_templates.write_cache; - op.addr.val = column; - - /* - * Some controllers are limited in term of max TX data size. In this - * case, split the operation into one LOAD CACHE and one or more - * LOAD RANDOM CACHE. - */ while (nbytes) { - op.data.buf.out = buf; - op.data.nbytes = nbytes; - - ret = spi_mem_adjust_op_size(spinand->spimem, &op); - if (ret) - return ret; - - ret = spi_mem_exec_op(spinand->spimem, &op); - if (ret) + ret = spi_mem_dirmap_write(wdesc, column, nbytes, buf); + if (ret < 0) return ret; - buf += op.data.nbytes; - nbytes -= op.data.nbytes; - op.addr.val += op.data.nbytes; + if (!ret || ret > nbytes) + return -EIO; - /* - * We need to use the RANDOM LOAD CACHE operation if there's - * more than one iteration, because the LOAD operation might - * reset the cache to 0xff. - */ - if (nbytes) { - column = op.addr.val; - op = *spinand->op_templates.update_cache; - op.addr.val = column; - } + nbytes -= ret; + column += ret; + buf += ret; } return 0; @@ -755,6 +694,59 @@ static int spinand_mtd_block_isreserved(struct mtd_info *mtd, loff_t offs) return ret; } +static int spinand_create_dirmap(struct spinand_device *spinand, + unsigned int plane) +{ + struct nand_device *nand = spinand_to_nand(spinand); + struct spi_mem_dirmap_info info = { + .length = nanddev_page_size(nand) + + nanddev_per_page_oobsize(nand), + }; + struct spi_mem_dirmap_desc *desc; + + /* The plane number is passed in MSB just above the column address */ + info.offset = plane << fls(nand->memorg.pagesize); + + info.op_tmpl = *spinand->op_templates.update_cache; + desc = devm_spi_mem_dirmap_create(&spinand->spimem->spi->dev, + spinand->spimem, &info); + if (IS_ERR(desc)) + return PTR_ERR(desc); + + spinand->dirmaps[plane].wdesc = desc; + + info.op_tmpl = *spinand->op_templates.read_cache; + desc = devm_spi_mem_dirmap_create(&spinand->spimem->spi->dev, + spinand->spimem, &info); + if (IS_ERR(desc)) + return PTR_ERR(desc); + + spinand->dirmaps[plane].rdesc = desc; + + return 0; +} + +static int spinand_create_dirmaps(struct spinand_device *spinand) +{ + struct nand_device *nand = spinand_to_nand(spinand); + int i, ret; + + spinand->dirmaps = devm_kzalloc(&spinand->spimem->spi->dev, + sizeof(*spinand->dirmaps) * + nand->memorg.planes_per_lun, + GFP_KERNEL); + if (!spinand->dirmaps) + return -ENOMEM; + + for (i = 0; i < nand->memorg.planes_per_lun; i++) { + ret = spinand_create_dirmap(spinand, i); + if (ret) + return ret; + } + + return 0; +} + static const struct nand_ops spinand_ops = { .erase = spinand_erase, .markbad = spinand_markbad, @@ -1012,6 +1004,14 @@ static int spinand_init(struct spinand_device *spinand) goto err_free_bufs; } + ret = spinand_create_dirmaps(spinand); + if (ret) { + dev_err(dev, + "Failed to create direct mappings for read/write operations (err = %d)\n", + ret); + goto err_manuf_cleanup; + } + /* After power up, all blocks are locked, so unlock them here. */ for (i = 0; i < nand->memorg.ntargets; i++) { ret = spinand_select_target(spinand, i); @@ -1037,6 +1037,7 @@ static int spinand_init(struct spinand_device *spinand) mtd->_block_markbad = spinand_mtd_block_markbad; mtd->_block_isreserved = spinand_mtd_block_isreserved; mtd->_erase = spinand_mtd_erase; + mtd->_max_bad_blocks = nanddev_mtd_max_bad_blocks; if (spinand->eccinfo.ooblayout) mtd_set_ooblayout(mtd, spinand->eccinfo.ooblayout); diff --git a/drivers/mtd/nand/spi/gigadevice.c b/drivers/mtd/nand/spi/gigadevice.c index 0b49d8264bef..e5586390026a 100644 --- a/drivers/mtd/nand/spi/gigadevice.c +++ b/drivers/mtd/nand/spi/gigadevice.c @@ -162,7 +162,7 @@ static const struct mtd_ooblayout_ops gd5fxgq4uexxg_ooblayout = { static const struct spinand_info gigadevice_spinand_table[] = { SPINAND_INFO("GD5F1GQ4xA", 0xF1, - NAND_MEMORG(1, 2048, 64, 64, 1024, 1, 1, 1), + NAND_MEMORG(1, 2048, 64, 64, 1024, 20, 1, 1, 1), NAND_ECCREQ(8, 512), SPINAND_INFO_OP_VARIANTS(&read_cache_variants, &write_cache_variants, @@ -171,7 +171,7 @@ static const struct spinand_info gigadevice_spinand_table[] = { SPINAND_ECCINFO(&gd5fxgq4xa_ooblayout, gd5fxgq4xa_ecc_get_status)), SPINAND_INFO("GD5F2GQ4xA", 0xF2, - NAND_MEMORG(1, 2048, 64, 64, 2048, 1, 1, 1), + NAND_MEMORG(1, 2048, 64, 64, 2048, 40, 1, 1, 1), NAND_ECCREQ(8, 512), SPINAND_INFO_OP_VARIANTS(&read_cache_variants, &write_cache_variants, @@ -180,7 +180,7 @@ static const struct spinand_info gigadevice_spinand_table[] = { SPINAND_ECCINFO(&gd5fxgq4xa_ooblayout, gd5fxgq4xa_ecc_get_status)), SPINAND_INFO("GD5F4GQ4xA", 0xF4, - NAND_MEMORG(1, 2048, 64, 64, 4096, 1, 1, 1), + NAND_MEMORG(1, 2048, 64, 64, 4096, 40, 1, 1, 1), NAND_ECCREQ(8, 512), SPINAND_INFO_OP_VARIANTS(&read_cache_variants, &write_cache_variants, @@ -189,7 +189,7 @@ static const struct spinand_info gigadevice_spinand_table[] = { SPINAND_ECCINFO(&gd5fxgq4xa_ooblayout, gd5fxgq4xa_ecc_get_status)), SPINAND_INFO("GD5F1GQ4UExxG", 0xd1, - NAND_MEMORG(1, 2048, 128, 64, 1024, 1, 1, 1), + NAND_MEMORG(1, 2048, 128, 64, 1024, 20, 1, 1, 1), NAND_ECCREQ(8, 512), SPINAND_INFO_OP_VARIANTS(&read_cache_variants, &write_cache_variants, diff --git a/drivers/mtd/nand/spi/macronix.c b/drivers/mtd/nand/spi/macronix.c index d16b57081c95..6502727049a8 100644 --- a/drivers/mtd/nand/spi/macronix.c +++ b/drivers/mtd/nand/spi/macronix.c @@ -100,7 +100,7 @@ static int mx35lf1ge4ab_ecc_get_status(struct spinand_device *spinand, static const struct spinand_info macronix_spinand_table[] = { SPINAND_INFO("MX35LF1GE4AB", 0x12, - NAND_MEMORG(1, 2048, 64, 64, 1024, 1, 1, 1), + NAND_MEMORG(1, 2048, 64, 64, 1024, 40, 1, 1, 1), NAND_ECCREQ(4, 512), SPINAND_INFO_OP_VARIANTS(&read_cache_variants, &write_cache_variants, @@ -109,7 +109,7 @@ static const struct spinand_info macronix_spinand_table[] = { SPINAND_ECCINFO(&mx35lfxge4ab_ooblayout, mx35lf1ge4ab_ecc_get_status)), SPINAND_INFO("MX35LF2GE4AB", 0x22, - NAND_MEMORG(1, 2048, 64, 64, 2048, 2, 1, 1), + NAND_MEMORG(1, 2048, 64, 64, 2048, 20, 2, 1, 1), NAND_ECCREQ(4, 512), SPINAND_INFO_OP_VARIANTS(&read_cache_variants, &write_cache_variants, diff --git a/drivers/mtd/nand/spi/micron.c b/drivers/mtd/nand/spi/micron.c index 9c4381d6847b..7d7b1f7fcf71 100644 --- a/drivers/mtd/nand/spi/micron.c +++ b/drivers/mtd/nand/spi/micron.c @@ -92,7 +92,7 @@ static int mt29f2g01abagd_ecc_get_status(struct spinand_device *spinand, static const struct spinand_info micron_spinand_table[] = { SPINAND_INFO("MT29F2G01ABAGD", 0x24, - NAND_MEMORG(1, 2048, 128, 64, 2048, 2, 1, 1), + NAND_MEMORG(1, 2048, 128, 64, 2048, 40, 2, 1, 1), NAND_ECCREQ(8, 512), SPINAND_INFO_OP_VARIANTS(&read_cache_variants, &write_cache_variants, diff --git a/drivers/mtd/nand/spi/toshiba.c b/drivers/mtd/nand/spi/toshiba.c index db8021da45b5..1cb3760ff779 100644 --- a/drivers/mtd/nand/spi/toshiba.c +++ b/drivers/mtd/nand/spi/toshiba.c @@ -96,7 +96,7 @@ static int tc58cxgxsx_ecc_get_status(struct spinand_device *spinand, static const struct spinand_info toshiba_spinand_table[] = { /* 3.3V 1Gb */ SPINAND_INFO("TC58CVG0S3", 0xC2, - NAND_MEMORG(1, 2048, 128, 64, 1024, 1, 1, 1), + NAND_MEMORG(1, 2048, 128, 64, 1024, 20, 1, 1, 1), NAND_ECCREQ(8, 512), SPINAND_INFO_OP_VARIANTS(&read_cache_variants, &write_cache_variants, @@ -106,7 +106,7 @@ static const struct spinand_info toshiba_spinand_table[] = { tc58cxgxsx_ecc_get_status)), /* 3.3V 2Gb */ SPINAND_INFO("TC58CVG1S3", 0xCB, - NAND_MEMORG(1, 2048, 128, 64, 2048, 1, 1, 1), + NAND_MEMORG(1, 2048, 128, 64, 2048, 40, 1, 1, 1), NAND_ECCREQ(8, 512), SPINAND_INFO_OP_VARIANTS(&read_cache_variants, &write_cache_variants, @@ -116,7 +116,7 @@ static const struct spinand_info toshiba_spinand_table[] = { tc58cxgxsx_ecc_get_status)), /* 3.3V 4Gb */ SPINAND_INFO("TC58CVG2S0", 0xCD, - NAND_MEMORG(1, 4096, 256, 64, 2048, 1, 1, 1), + NAND_MEMORG(1, 4096, 256, 64, 2048, 40, 1, 1, 1), NAND_ECCREQ(8, 512), SPINAND_INFO_OP_VARIANTS(&read_cache_variants, &write_cache_variants, @@ -126,7 +126,7 @@ static const struct spinand_info toshiba_spinand_table[] = { tc58cxgxsx_ecc_get_status)), /* 1.8V 1Gb */ SPINAND_INFO("TC58CYG0S3", 0xB2, - NAND_MEMORG(1, 2048, 128, 64, 1024, 1, 1, 1), + NAND_MEMORG(1, 2048, 128, 64, 1024, 20, 1, 1, 1), NAND_ECCREQ(8, 512), SPINAND_INFO_OP_VARIANTS(&read_cache_variants, &write_cache_variants, @@ -136,7 +136,7 @@ static const struct spinand_info toshiba_spinand_table[] = { tc58cxgxsx_ecc_get_status)), /* 1.8V 2Gb */ SPINAND_INFO("TC58CYG1S3", 0xBB, - NAND_MEMORG(1, 2048, 128, 64, 2048, 1, 1, 1), + NAND_MEMORG(1, 2048, 128, 64, 2048, 40, 1, 1, 1), NAND_ECCREQ(8, 512), SPINAND_INFO_OP_VARIANTS(&read_cache_variants, &write_cache_variants, @@ -146,7 +146,7 @@ static const struct spinand_info toshiba_spinand_table[] = { tc58cxgxsx_ecc_get_status)), /* 1.8V 4Gb */ SPINAND_INFO("TC58CYG2S0", 0xBD, - NAND_MEMORG(1, 4096, 256, 64, 2048, 1, 1, 1), + NAND_MEMORG(1, 4096, 256, 64, 2048, 40, 1, 1, 1), NAND_ECCREQ(8, 512), SPINAND_INFO_OP_VARIANTS(&read_cache_variants, &write_cache_variants, diff --git a/drivers/mtd/nand/spi/winbond.c b/drivers/mtd/nand/spi/winbond.c index 5d944580b898..a6c17e0cace8 100644 --- a/drivers/mtd/nand/spi/winbond.c +++ b/drivers/mtd/nand/spi/winbond.c @@ -76,7 +76,7 @@ static int w25m02gv_select_target(struct spinand_device *spinand, static const struct spinand_info winbond_spinand_table[] = { SPINAND_INFO("W25M02GV", 0xAB, - NAND_MEMORG(1, 2048, 64, 64, 1024, 1, 1, 2), + NAND_MEMORG(1, 2048, 64, 64, 1024, 20, 1, 1, 2), NAND_ECCREQ(1, 512), SPINAND_INFO_OP_VARIANTS(&read_cache_variants, &write_cache_variants, @@ -85,7 +85,7 @@ static const struct spinand_info winbond_spinand_table[] = { SPINAND_ECCINFO(&w25m02gv_ooblayout, NULL), SPINAND_SELECT_TARGET(w25m02gv_select_target)), SPINAND_INFO("W25N01GV", 0xAA, - NAND_MEMORG(1, 2048, 64, 64, 1024, 1, 1, 1), + NAND_MEMORG(1, 2048, 64, 64, 1024, 20, 1, 1, 1), NAND_ECCREQ(1, 512), SPINAND_INFO_OP_VARIANTS(&read_cache_variants, &write_cache_variants, diff --git a/drivers/mtd/parsers/Kconfig b/drivers/mtd/parsers/Kconfig index fccf1950e92d..bc201327dda0 100644 --- a/drivers/mtd/parsers/Kconfig +++ b/drivers/mtd/parsers/Kconfig @@ -1,3 +1,30 @@ +config MTD_PARSER_IMAGETAG + tristate "Parser for BCM963XX Image Tag format partitions" + depends on BCM63XX || BMIPS_GENERIC || COMPILE_TEST + select CRC32 + help + Image Tag is the firmware header used by broadcom on their xDSL line + of devices. It is used to describe the offsets and lengths of kernel + and rootfs partitions. + This driver adds support for parsing a partition with an Image Tag + header and creates up to two partitions, kernel and rootfs. + +config MTD_AFS_PARTS + tristate "ARM Firmware Suite partition parsing" + depends on (ARM || ARM64) + help + The ARM Firmware Suite allows the user to divide flash devices into + multiple 'images'. Each such image has a header containing its name + and offset/size etc. + + If you need code which can detect and parse these tables, and + register MTD 'partitions' corresponding to each image detected, + enable this option. + + You will still need the parsing functions to be called by the driver + for your particular device. It won't happen automatically. The + 'physmap' map driver (CONFIG_MTD_PHYSMAP) does this, for example. + config MTD_PARSER_TRX tristate "Parser for TRX format partitions" depends on MTD && (BCM47XX || ARCH_BCM_5301X || COMPILE_TEST) diff --git a/drivers/mtd/parsers/Makefile b/drivers/mtd/parsers/Makefile index d8418bf6804a..cddc8f35a856 100644 --- a/drivers/mtd/parsers/Makefile +++ b/drivers/mtd/parsers/Makefile @@ -1,3 +1,5 @@ +obj-$(CONFIG_MTD_PARSER_IMAGETAG) += parser_imagetag.o +obj-$(CONFIG_MTD_AFS_PARTS) += afs.o obj-$(CONFIG_MTD_PARSER_TRX) += parser_trx.o obj-$(CONFIG_MTD_SHARPSL_PARTS) += sharpslpart.o obj-$(CONFIG_MTD_REDBOOT_PARTS) += redboot.o diff --git a/drivers/mtd/parsers/afs.c b/drivers/mtd/parsers/afs.c new file mode 100644 index 000000000000..0c730024f806 --- /dev/null +++ b/drivers/mtd/parsers/afs.c @@ -0,0 +1,410 @@ +/*====================================================================== + + drivers/mtd/afs.c: ARM Flash Layout/Partitioning + + Copyright © 2000 ARM Limited + Copyright (C) 2019 Linus Walleij + + This program is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation; either version 2 of the License, or + (at your option) any later version. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program; if not, write to the Free Software + Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + + This is access code for flashes using ARM's flash partitioning + standards. + +======================================================================*/ + +#include <linux/module.h> +#include <linux/types.h> +#include <linux/kernel.h> +#include <linux/slab.h> +#include <linux/string.h> +#include <linux/init.h> + +#include <linux/mtd/mtd.h> +#include <linux/mtd/map.h> +#include <linux/mtd/partitions.h> + +#define AFSV1_FOOTER_MAGIC 0xA0FFFF9F +#define AFSV2_FOOTER_MAGIC1 0x464C5348 /* "FLSH" */ +#define AFSV2_FOOTER_MAGIC2 0x464F4F54 /* "FOOT" */ + +struct footer_v1 { + u32 image_info_base; /* Address of first word of ImageFooter */ + u32 image_start; /* Start of area reserved by this footer */ + u32 signature; /* 'Magic' number proves it's a footer */ + u32 type; /* Area type: ARM Image, SIB, customer */ + u32 checksum; /* Just this structure */ +}; + +struct image_info_v1 { + u32 bootFlags; /* Boot flags, compression etc. */ + u32 imageNumber; /* Unique number, selects for boot etc. */ + u32 loadAddress; /* Address program should be loaded to */ + u32 length; /* Actual size of image */ + u32 address; /* Image is executed from here */ + char name[16]; /* Null terminated */ + u32 headerBase; /* Flash Address of any stripped header */ + u32 header_length; /* Length of header in memory */ + u32 headerType; /* AIF, RLF, s-record etc. */ + u32 checksum; /* Image checksum (inc. this struct) */ +}; + +static u32 word_sum(void *words, int num) +{ + u32 *p = words; + u32 sum = 0; + + while (num--) + sum += *p++; + + return sum; +} + +static u32 word_sum_v2(u32 *p, u32 num) +{ + u32 sum = 0; + int i; + + for (i = 0; i < num; i++) { + u32 val; + + val = p[i]; + if (val > ~sum) + sum++; + sum += val; + } + return ~sum; +} + +static bool afs_is_v1(struct mtd_info *mtd, u_int off) +{ + /* The magic is 12 bytes from the end of the erase block */ + u_int ptr = off + mtd->erasesize - 12; + u32 magic; + size_t sz; + int ret; + + ret = mtd_read(mtd, ptr, 4, &sz, (u_char *)&magic); + if (ret < 0) { + printk(KERN_ERR "AFS: mtd read failed at 0x%x: %d\n", + ptr, ret); + return false; + } + if (ret >= 0 && sz != 4) + return false; + + return (magic == AFSV1_FOOTER_MAGIC); +} + +static bool afs_is_v2(struct mtd_info *mtd, u_int off) +{ + /* The magic is the 8 last bytes of the erase block */ + u_int ptr = off + mtd->erasesize - 8; + u32 foot[2]; + size_t sz; + int ret; + + ret = mtd_read(mtd, ptr, 8, &sz, (u_char *)foot); + if (ret < 0) { + printk(KERN_ERR "AFS: mtd read failed at 0x%x: %d\n", + ptr, ret); + return false; + } + if (ret >= 0 && sz != 8) + return false; + + return (foot[0] == AFSV2_FOOTER_MAGIC1 && + foot[1] == AFSV2_FOOTER_MAGIC2); +} + +static int afs_parse_v1_partition(struct mtd_info *mtd, + u_int off, struct mtd_partition *part) +{ + struct footer_v1 fs; + struct image_info_v1 iis; + u_int mask; + /* + * Static checks cannot see that we bail out if we have an error + * reading the footer. + */ + u_int uninitialized_var(iis_ptr); + u_int uninitialized_var(img_ptr); + u_int ptr; + size_t sz; + int ret; + int i; + + /* + * This is the address mask; we use this to mask off out of + * range address bits. + */ + mask = mtd->size - 1; + + ptr = off + mtd->erasesize - sizeof(fs); + ret = mtd_read(mtd, ptr, sizeof(fs), &sz, (u_char *)&fs); + if (ret >= 0 && sz != sizeof(fs)) + ret = -EINVAL; + if (ret < 0) { + printk(KERN_ERR "AFS: mtd read failed at 0x%x: %d\n", + ptr, ret); + return ret; + } + /* + * Check the checksum. + */ + if (word_sum(&fs, sizeof(fs) / sizeof(u32)) != 0xffffffff) + return -EINVAL; + + /* + * Hide the SIB (System Information Block) + */ + if (fs.type == 2) + return 0; + + iis_ptr = fs.image_info_base & mask; + img_ptr = fs.image_start & mask; + + /* + * Check the image info base. This can not + * be located after the footer structure. + */ + if (iis_ptr >= ptr) + return 0; + + /* + * Check the start of this image. The image + * data can not be located after this block. + */ + if (img_ptr > off) + return 0; + + /* Read the image info block */ + memset(&iis, 0, sizeof(iis)); + ret = mtd_read(mtd, iis_ptr, sizeof(iis), &sz, (u_char *)&iis); + if (ret < 0) { + printk(KERN_ERR "AFS: mtd read failed at 0x%x: %d\n", + iis_ptr, ret); + return -EINVAL; + } + + if (sz != sizeof(iis)) + return -EINVAL; + + /* + * Validate the name - it must be NUL terminated. + */ + for (i = 0; i < sizeof(iis.name); i++) + if (iis.name[i] == '\0') + break; + if (i > sizeof(iis.name)) + return -EINVAL; + + part->name = kstrdup(iis.name, GFP_KERNEL); + if (!part->name) + return -ENOMEM; + + part->size = (iis.length + mtd->erasesize - 1) & ~(mtd->erasesize - 1); + part->offset = img_ptr; + part->mask_flags = 0; + + printk(" mtd: at 0x%08x, %5lluKiB, %8u, %s\n", + img_ptr, part->size / 1024, + iis.imageNumber, part->name); + + return 0; +} + +static int afs_parse_v2_partition(struct mtd_info *mtd, + u_int off, struct mtd_partition *part) +{ + u_int ptr; + u32 footer[12]; + u32 imginfo[36]; + char *name; + u32 version; + u32 entrypoint; + u32 attributes; + u32 region_count; + u32 block_start; + u32 block_end; + u32 crc; + size_t sz; + int ret; + int i; + int pad = 0; + + pr_debug("Parsing v2 partition @%08x-%08x\n", + off, off + mtd->erasesize); + + /* First read the footer */ + ptr = off + mtd->erasesize - sizeof(footer); + ret = mtd_read(mtd, ptr, sizeof(footer), &sz, (u_char *)footer); + if ((ret < 0) || (ret >= 0 && sz != sizeof(footer))) { + pr_err("AFS: mtd read failed at 0x%x: %d\n", + ptr, ret); + return -EIO; + } + name = (char *) &footer[0]; + version = footer[9]; + ptr = off + mtd->erasesize - sizeof(footer) - footer[8]; + + pr_debug("found image \"%s\", version %08x, info @%08x\n", + name, version, ptr); + + /* Then read the image information */ + ret = mtd_read(mtd, ptr, sizeof(imginfo), &sz, (u_char *)imginfo); + if ((ret < 0) || (ret >= 0 && sz != sizeof(imginfo))) { + pr_err("AFS: mtd read failed at 0x%x: %d\n", + ptr, ret); + return -EIO; + } + + /* 32bit platforms have 4 bytes padding */ + crc = word_sum_v2(&imginfo[1], 34); + if (!crc) { + pr_debug("Padding 1 word (4 bytes)\n"); + pad = 1; + } else { + /* 64bit platforms have 8 bytes padding */ + crc = word_sum_v2(&imginfo[2], 34); + if (!crc) { + pr_debug("Padding 2 words (8 bytes)\n"); + pad = 2; + } + } + if (crc) { + pr_err("AFS: bad checksum on v2 image info: %08x\n", crc); + return -EINVAL; + } + entrypoint = imginfo[pad]; + attributes = imginfo[pad+1]; + region_count = imginfo[pad+2]; + block_start = imginfo[20]; + block_end = imginfo[21]; + + pr_debug("image entry=%08x, attr=%08x, regions=%08x, " + "bs=%08x, be=%08x\n", + entrypoint, attributes, region_count, + block_start, block_end); + + for (i = 0; i < region_count; i++) { + u32 region_load_addr = imginfo[pad + 3 + i*4]; + u32 region_size = imginfo[pad + 4 + i*4]; + u32 region_offset = imginfo[pad + 5 + i*4]; + u32 region_start; + u32 region_end; + + pr_debug(" region %d: address: %08x, size: %08x, " + "offset: %08x\n", + i, + region_load_addr, + region_size, + region_offset); + + region_start = off + region_offset; + region_end = region_start + region_size; + /* Align partition to end of erase block */ + region_end += (mtd->erasesize - 1); + region_end &= ~(mtd->erasesize -1); + pr_debug(" partition start = %08x, partition end = %08x\n", + region_start, region_end); + + /* Create one partition per region */ + part->name = kstrdup(name, GFP_KERNEL); + if (!part->name) + return -ENOMEM; + part->offset = region_start; + part->size = region_end - region_start; + part->mask_flags = 0; + } + + return 0; +} + +static int parse_afs_partitions(struct mtd_info *mtd, + const struct mtd_partition **pparts, + struct mtd_part_parser_data *data) +{ + struct mtd_partition *parts; + u_int off, sz; + int ret = 0; + int i; + + /* Count the partitions by looping over all erase blocks */ + for (i = off = sz = 0; off < mtd->size; off += mtd->erasesize) { + if (afs_is_v1(mtd, off)) { + sz += sizeof(struct mtd_partition); + i += 1; + } + if (afs_is_v2(mtd, off)) { + sz += sizeof(struct mtd_partition); + i += 1; + } + } + + if (!i) + return 0; + + parts = kzalloc(sz, GFP_KERNEL); + if (!parts) + return -ENOMEM; + + /* + * Identify the partitions + */ + for (i = off = 0; off < mtd->size; off += mtd->erasesize) { + if (afs_is_v1(mtd, off)) { + ret = afs_parse_v1_partition(mtd, off, &parts[i]); + if (ret) + goto out_free_parts; + i++; + } + if (afs_is_v2(mtd, off)) { + ret = afs_parse_v2_partition(mtd, off, &parts[i]); + if (ret) + goto out_free_parts; + i++; + } + } + + *pparts = parts; + return i; + +out_free_parts: + while (i >= 0) { + if (parts[i].name) + kfree(parts[i].name); + i--; + } + kfree(parts); + *pparts = NULL; + return ret; +} + +static const struct of_device_id mtd_parser_afs_of_match_table[] = { + { .compatible = "arm,arm-firmware-suite" }, + {}, +}; +MODULE_DEVICE_TABLE(of, mtd_parser_afs_of_match_table); + +static struct mtd_part_parser afs_parser = { + .parse_fn = parse_afs_partitions, + .name = "afs", + .of_match_table = mtd_parser_afs_of_match_table, +}; +module_mtd_part_parser(afs_parser); + +MODULE_AUTHOR("ARM Ltd"); +MODULE_DESCRIPTION("ARM Firmware Suite partition parser"); +MODULE_LICENSE("GPL"); diff --git a/drivers/mtd/parsers/parser_imagetag.c b/drivers/mtd/parsers/parser_imagetag.c new file mode 100644 index 000000000000..9537c183a3be --- /dev/null +++ b/drivers/mtd/parsers/parser_imagetag.c @@ -0,0 +1,222 @@ +/* + * BCM63XX CFE image tag parser + * + * Copyright © 2006-2008 Florian Fainelli <florian@openwrt.org> + * Mike Albon <malbon@openwrt.org> + * Copyright © 2009-2010 Daniel Dickinson <openwrt@cshore.neomailbox.net> + * Copyright © 2011-2013 Jonas Gorski <jonas.gorski@gmail.com> + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + */ + +#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt + +#include <linux/bcm963xx_tag.h> +#include <linux/crc32.h> +#include <linux/module.h> +#include <linux/kernel.h> +#include <linux/sizes.h> +#include <linux/slab.h> +#include <linux/vmalloc.h> +#include <linux/mtd/mtd.h> +#include <linux/mtd/partitions.h> +#include <linux/of.h> + +/* Ensure strings read from flash structs are null terminated */ +#define STR_NULL_TERMINATE(x) \ + do { char *_str = (x); _str[sizeof(x) - 1] = 0; } while (0) + +static int bcm963xx_read_imagetag(struct mtd_info *master, const char *name, + loff_t tag_offset, struct bcm_tag *buf) +{ + int ret; + size_t retlen; + u32 computed_crc; + + ret = mtd_read(master, tag_offset, sizeof(*buf), &retlen, (void *)buf); + if (ret) + return ret; + + if (retlen != sizeof(*buf)) + return -EIO; + + computed_crc = crc32_le(IMAGETAG_CRC_START, (u8 *)buf, + offsetof(struct bcm_tag, header_crc)); + if (computed_crc == buf->header_crc) { + STR_NULL_TERMINATE(buf->board_id); + STR_NULL_TERMINATE(buf->tag_version); + + pr_info("%s: CFE image tag found at 0x%llx with version %s, board type %s\n", + name, tag_offset, buf->tag_version, buf->board_id); + + return 0; + } + + pr_warn("%s: CFE image tag at 0x%llx CRC invalid (expected %08x, actual %08x)\n", + name, tag_offset, buf->header_crc, computed_crc); + return -EINVAL; +} + +static int bcm963xx_parse_imagetag_partitions(struct mtd_info *master, + const struct mtd_partition **pparts, + struct mtd_part_parser_data *data) +{ + /* CFE, NVRAM and global Linux are always present */ + int nrparts = 0, curpart = 0; + struct bcm_tag *buf = NULL; + struct mtd_partition *parts; + int ret; + unsigned int rootfsaddr, kerneladdr, spareaddr, offset; + unsigned int rootfslen, kernellen, sparelen, totallen; + int i; + bool rootfs_first = false; + + buf = vmalloc(sizeof(struct bcm_tag)); + if (!buf) + return -ENOMEM; + + /* Get the tag */ + ret = bcm963xx_read_imagetag(master, "rootfs", 0, buf); + if (!ret) { + STR_NULL_TERMINATE(buf->flash_image_start); + if (kstrtouint(buf->flash_image_start, 10, &rootfsaddr) || + rootfsaddr < BCM963XX_EXTENDED_SIZE) { + pr_err("invalid rootfs address: %*ph\n", + (int)sizeof(buf->flash_image_start), + buf->flash_image_start); + goto out; + } + + STR_NULL_TERMINATE(buf->kernel_address); + if (kstrtouint(buf->kernel_address, 10, &kerneladdr) || + kerneladdr < BCM963XX_EXTENDED_SIZE) { + pr_err("invalid kernel address: %*ph\n", + (int)sizeof(buf->kernel_address), + buf->kernel_address); + goto out; + } + + STR_NULL_TERMINATE(buf->kernel_length); + if (kstrtouint(buf->kernel_length, 10, &kernellen)) { + pr_err("invalid kernel length: %*ph\n", + (int)sizeof(buf->kernel_length), + buf->kernel_length); + goto out; + } + + STR_NULL_TERMINATE(buf->total_length); + if (kstrtouint(buf->total_length, 10, &totallen)) { + pr_err("invalid total length: %*ph\n", + (int)sizeof(buf->total_length), + buf->total_length); + goto out; + } + + /* + * Addresses are flash absolute, so convert to partition + * relative addresses. Assume either kernel or rootfs will + * directly follow the image tag. + */ + if (rootfsaddr < kerneladdr) + offset = rootfsaddr - sizeof(struct bcm_tag); + else + offset = kerneladdr - sizeof(struct bcm_tag); + + kerneladdr = kerneladdr - offset; + rootfsaddr = rootfsaddr - offset; + spareaddr = roundup(totallen, master->erasesize); + + if (rootfsaddr < kerneladdr) { + /* default Broadcom layout */ + rootfslen = kerneladdr - rootfsaddr; + rootfs_first = true; + } else { + /* OpenWrt layout */ + rootfsaddr = kerneladdr + kernellen; + rootfslen = spareaddr - rootfsaddr; + } + } else { + goto out; + } + sparelen = master->size - spareaddr; + + /* Determine number of partitions */ + if (rootfslen > 0) + nrparts++; + + if (kernellen > 0) + nrparts++; + + parts = kzalloc(sizeof(*parts) * nrparts + 10 * nrparts, GFP_KERNEL); + if (!parts) { + ret = -ENOMEM; + goto out; + } + + /* Start building partition list */ + if (kernellen > 0) { + int kernelpart = curpart; + + if (rootfslen > 0 && rootfs_first) + kernelpart++; + parts[kernelpart].name = "kernel"; + parts[kernelpart].offset = kerneladdr; + parts[kernelpart].size = kernellen; + curpart++; + } + + if (rootfslen > 0) { + int rootfspart = curpart; + + if (kernellen > 0 && rootfs_first) + rootfspart--; + parts[rootfspart].name = "rootfs"; + parts[rootfspart].offset = rootfsaddr; + parts[rootfspart].size = rootfslen; + if (sparelen > 0 && !rootfs_first) + parts[rootfspart].size += sparelen; + curpart++; + } + + for (i = 0; i < nrparts; i++) + pr_info("Partition %d is %s offset %llx and length %llx\n", i, + parts[i].name, parts[i].offset, parts[i].size); + + pr_info("Spare partition is offset %x and length %x\n", spareaddr, + sparelen); + + *pparts = parts; + ret = 0; + +out: + vfree(buf); + + if (ret) + return ret; + + return nrparts; +} + +static const struct of_device_id parse_bcm963xx_imagetag_match_table[] = { + { .compatible = "brcm,bcm963xx-imagetag" }, + {}, +}; +MODULE_DEVICE_TABLE(of, parse_bcm963xx_imagetag_match_table); + +static struct mtd_part_parser bcm963xx_imagetag_parser = { + .parse_fn = bcm963xx_parse_imagetag_partitions, + .name = "bcm963xx-imagetag", + .of_match_table = parse_bcm963xx_imagetag_match_table, +}; +module_mtd_part_parser(bcm963xx_imagetag_parser); + +MODULE_LICENSE("GPL"); +MODULE_AUTHOR("Daniel Dickinson <openwrt@cshore.neomailbox.net>"); +MODULE_AUTHOR("Florian Fainelli <florian@openwrt.org>"); +MODULE_AUTHOR("Mike Albon <malbon@openwrt.org>"); +MODULE_AUTHOR("Jonas Gorski <jonas.gorski@gmail.com>"); +MODULE_DESCRIPTION("MTD parser for BCM963XX CFE Image Tag partitions"); diff --git a/drivers/mtd/sm_ftl.c b/drivers/mtd/sm_ftl.c index 89227b1d036a..e0955a98a0f4 100644 --- a/drivers/mtd/sm_ftl.c +++ b/drivers/mtd/sm_ftl.c @@ -222,17 +222,17 @@ static int sm_correct_sector(uint8_t *buffer, struct sm_oob *oob) uint8_t ecc[3]; __nand_calculate_ecc(buffer, SM_SMALL_PAGE, ecc, - IS_ENABLED(CONFIG_MTD_NAND_ECC_SMC)); + IS_ENABLED(CONFIG_MTD_NAND_ECC_SW_HAMMING_SMC)); if (__nand_correct_data(buffer, ecc, oob->ecc1, SM_SMALL_PAGE, - IS_ENABLED(CONFIG_MTD_NAND_ECC_SMC)) < 0) + IS_ENABLED(CONFIG_MTD_NAND_ECC_SW_HAMMING_SMC)) < 0) return -EIO; buffer += SM_SMALL_PAGE; __nand_calculate_ecc(buffer, SM_SMALL_PAGE, ecc, - IS_ENABLED(CONFIG_MTD_NAND_ECC_SMC)); + IS_ENABLED(CONFIG_MTD_NAND_ECC_SW_HAMMING_SMC)); if (__nand_correct_data(buffer, ecc, oob->ecc2, SM_SMALL_PAGE, - IS_ENABLED(CONFIG_MTD_NAND_ECC_SMC)) < 0) + IS_ENABLED(CONFIG_MTD_NAND_ECC_SW_HAMMING_SMC)) < 0) return -EIO; return 0; } @@ -399,11 +399,11 @@ restart: if (ftl->smallpagenand) { __nand_calculate_ecc(buf + boffset, SM_SMALL_PAGE, oob.ecc1, - IS_ENABLED(CONFIG_MTD_NAND_ECC_SMC)); + IS_ENABLED(CONFIG_MTD_NAND_ECC_SW_HAMMING_SMC)); __nand_calculate_ecc(buf + boffset + SM_SMALL_PAGE, SM_SMALL_PAGE, oob.ecc2, - IS_ENABLED(CONFIG_MTD_NAND_ECC_SMC)); + IS_ENABLED(CONFIG_MTD_NAND_ECC_SW_HAMMING_SMC)); } if (!sm_write_sector(ftl, zone, block, boffset, buf + boffset, &oob)) diff --git a/drivers/mtd/spi-nor/intel-spi-pci.c b/drivers/mtd/spi-nor/intel-spi-pci.c index 872b40922608..bfbfc17ed6aa 100644 --- a/drivers/mtd/spi-nor/intel-spi-pci.c +++ b/drivers/mtd/spi-nor/intel-spi-pci.c @@ -63,6 +63,7 @@ static void intel_spi_pci_remove(struct pci_dev *pdev) } static const struct pci_device_id intel_spi_pci_ids[] = { + { PCI_VDEVICE(INTEL, 0x02a4), (unsigned long)&bxt_info }, { PCI_VDEVICE(INTEL, 0x18e0), (unsigned long)&bxt_info }, { PCI_VDEVICE(INTEL, 0x19e0), (unsigned long)&bxt_info }, { PCI_VDEVICE(INTEL, 0x34a4), (unsigned long)&bxt_info }, diff --git a/drivers/mtd/spi-nor/intel-spi.c b/drivers/mtd/spi-nor/intel-spi.c index af0a22019516..d60cbf23d9aa 100644 --- a/drivers/mtd/spi-nor/intel-spi.c +++ b/drivers/mtd/spi-nor/intel-spi.c @@ -632,6 +632,10 @@ static ssize_t intel_spi_read(struct spi_nor *nor, loff_t from, size_t len, while (len > 0) { block_size = min_t(size_t, len, INTEL_SPI_FIFO_SZ); + /* Read cannot cross 4K boundary */ + block_size = min_t(loff_t, from + block_size, + round_up(from + 1, SZ_4K)) - from; + writel(from, ispi->base + FADDR); val = readl(ispi->base + HSFSTS_CTL); @@ -685,6 +689,10 @@ static ssize_t intel_spi_write(struct spi_nor *nor, loff_t to, size_t len, while (len > 0) { block_size = min_t(size_t, len, INTEL_SPI_FIFO_SZ); + /* Write cannot cross 4K boundary */ + block_size = min_t(loff_t, to + block_size, + round_up(to + 1, SZ_4K)) - to; + writel(to, ispi->base + FADDR); val = readl(ispi->base + HSFSTS_CTL); diff --git a/drivers/mtd/spi-nor/spi-nor.c b/drivers/mtd/spi-nor/spi-nor.c index fae147452aff..73172d7f512b 100644 --- a/drivers/mtd/spi-nor/spi-nor.c +++ b/drivers/mtd/spi-nor/spi-nor.c @@ -744,7 +744,7 @@ spi_nor_find_best_erase_type(const struct spi_nor_erase_map *map, u8 erase_mask = region->offset & SNOR_ERASE_TYPE_MASK; /* - * Erase types are ordered by size, with the biggest erase type at + * Erase types are ordered by size, with the smallest erase type at * index 0. */ for (i = SNOR_ERASE_TYPE_MAX - 1; i >= 0; i--) { @@ -1905,7 +1905,9 @@ static const struct flash_info spi_nor_ids[] = { SPI_NOR_DUAL_READ | SPI_NOR_QUAD_READ | USE_CLSR) }, { "s25fl256s0", INFO(0x010219, 0x4d00, 256 * 1024, 128, USE_CLSR) }, { "s25fl256s1", INFO(0x010219, 0x4d01, 64 * 1024, 512, SPI_NOR_DUAL_READ | SPI_NOR_QUAD_READ | USE_CLSR) }, - { "s25fl512s", INFO6(0x010220, 0x4d0080, 256 * 1024, 256, SPI_NOR_DUAL_READ | SPI_NOR_QUAD_READ | USE_CLSR) }, + { "s25fl512s", INFO6(0x010220, 0x4d0080, 256 * 1024, 256, + SPI_NOR_DUAL_READ | SPI_NOR_QUAD_READ | + SPI_NOR_HAS_LOCK | SPI_NOR_HAS_TB | USE_CLSR) }, { "s25fs512s", INFO6(0x010220, 0x4d0081, 256 * 1024, 256, SPI_NOR_DUAL_READ | SPI_NOR_QUAD_READ | USE_CLSR) }, { "s70fl01gs", INFO(0x010221, 0x4d00, 256 * 1024, 256, 0) }, { "s25sl12800", INFO(0x012018, 0x0300, 256 * 1024, 64, 0) }, @@ -2071,8 +2073,8 @@ static const struct flash_info *spi_nor_read_id(struct spi_nor *nor) return &spi_nor_ids[tmp]; } } - dev_err(nor->dev, "unrecognized JEDEC id bytes: %02x, %02x, %02x\n", - id[0], id[1], id[2]); + dev_err(nor->dev, "unrecognized JEDEC id bytes: %*ph\n", + SPI_NOR_MAX_ID_LEN, id); return ERR_PTR(-ENODEV); } diff --git a/drivers/mtd/tests/mtd_nandecctest.c b/drivers/mtd/tests/mtd_nandecctest.c index c71523e94580..73b06304c975 100644 --- a/drivers/mtd/tests/mtd_nandecctest.c +++ b/drivers/mtd/tests/mtd_nandecctest.c @@ -21,7 +21,7 @@ * or detected. */ -#if IS_ENABLED(CONFIG_MTD_NAND) +#if IS_ENABLED(CONFIG_MTD_RAW_NAND) struct nand_ecc_test { const char *name; @@ -122,9 +122,9 @@ static int no_bit_error_verify(void *error_data, void *error_ecc, int ret; __nand_calculate_ecc(error_data, size, calc_ecc, - IS_ENABLED(CONFIG_MTD_NAND_ECC_SMC)); + IS_ENABLED(CONFIG_MTD_NAND_ECC_SW_HAMMING_SMC)); ret = __nand_correct_data(error_data, error_ecc, calc_ecc, size, - IS_ENABLED(CONFIG_MTD_NAND_ECC_SMC)); + IS_ENABLED(CONFIG_MTD_NAND_ECC_SW_HAMMING_SMC)); if (ret == 0 && !memcmp(correct_data, error_data, size)) return 0; @@ -152,9 +152,9 @@ static int single_bit_error_correct(void *error_data, void *error_ecc, int ret; __nand_calculate_ecc(error_data, size, calc_ecc, - IS_ENABLED(CONFIG_MTD_NAND_ECC_SMC)); + IS_ENABLED(CONFIG_MTD_NAND_ECC_SW_HAMMING_SMC)); ret = __nand_correct_data(error_data, error_ecc, calc_ecc, size, - IS_ENABLED(CONFIG_MTD_NAND_ECC_SMC)); + IS_ENABLED(CONFIG_MTD_NAND_ECC_SW_HAMMING_SMC)); if (ret == 1 && !memcmp(correct_data, error_data, size)) return 0; @@ -189,9 +189,9 @@ static int double_bit_error_detect(void *error_data, void *error_ecc, int ret; __nand_calculate_ecc(error_data, size, calc_ecc, - IS_ENABLED(CONFIG_MTD_NAND_ECC_SMC)); + IS_ENABLED(CONFIG_MTD_NAND_ECC_SW_HAMMING_SMC)); ret = __nand_correct_data(error_data, error_ecc, calc_ecc, size, - IS_ENABLED(CONFIG_MTD_NAND_ECC_SMC)); + IS_ENABLED(CONFIG_MTD_NAND_ECC_SW_HAMMING_SMC)); return (ret == -EBADMSG) ? 0 : -EINVAL; } @@ -266,7 +266,7 @@ static int nand_ecc_test_run(const size_t size) prandom_bytes(correct_data, size); __nand_calculate_ecc(correct_data, size, correct_ecc, - IS_ENABLED(CONFIG_MTD_NAND_ECC_SMC)); + IS_ENABLED(CONFIG_MTD_NAND_ECC_SW_HAMMING_SMC)); for (i = 0; i < ARRAY_SIZE(nand_ecc_test); i++) { nand_ecc_test[i].prepare(error_data, error_ecc, |