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2014-01-20mtd: mtdram: add missing 'const'Brian Norris1-1/+1
mtdram_init_device() wasn't updated along with mtd_partition.name. Signed-off-by: Brian Norris <computersforpeace@gmail.com> Cc: Geert Uytterhoeven <geert@linux-m68k.org>
2014-01-20mtd: m25p80: assign default read commandBrian Norris1-0/+2
In the following commit (in -next): commit 8552b439aba7f32063755d23f79ca27b4d0a3115 drivers: mtd: m25p80: convert "bool" read check into an enum We converted the boolean 'fast_read' property to become an enum 'flash_read', but at the same time, we changed the conditional path so that it doesn't choose a default value in some cases (technically, we choose the correct default simply by virtue of devm_kzalloc(), which zeroes this out to be a NORMAL read operation, but still...). Fix this by setting a default for the 'else' clause. Signed-off-by: Brian Norris <computersforpeace@gmail.com> Cc: Sourav Poddar <sourav.poddar@ti.com> Acked-by: Marek Vasut <marex@denx.de>
2014-01-20mtd: nuc900_nand: remove redundant return value check of platform_get_resource()Wei Yongjun1-3/+0
Remove unneeded error handling on the result of a call to platform_get_resource() when the value is passed to devm_ioremap_resource(). Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn> Reviewed-by: Jingoo Han <jg1.han@samsung.com> Signed-off-by: Brian Norris <computersforpeace@gmail.com>
2014-01-20mtd: plat_nand: remove redundant return value check of platform_get_resource()Wei Yongjun1-4/+1
Remove unneeded error handling on the result of a call to platform_get_resource() when the value is passed to devm_ioremap_resource(). And move those two call together to make the connection between them more clear. Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn> Reviewed-by: Jingoo Han <jg1.han@samsung.com> Signed-off-by: Brian Norris <computersforpeace@gmail.com>
2014-01-20mtd: nand: add Intel manufacturer IDHuang Shijie1-0/+1
Add the Intel manufacturer Id. Tested with Intel JS29F32G08ACMD1(4096 + 224) which is ONFI 2.0 compliant nand. Signed-off-by: Huang Shijie <b32955@freescale.com> Signed-off-by: Brian Norris <computersforpeace@gmail.com>
2014-01-20mtd: nand: add SanDisk manufacturer IDHuang Shijie1-0/+1
Add the manufactor ID for SanDisk. Make preparation for SanDisk SDTNRGAMA-008G. Signed-off-by: Huang Shijie <b32955@freescale.com> Signed-off-by: Brian Norris <computersforpeace@gmail.com>
2014-01-20mtd: nand: add support for Samsung K9LCG08U0BHuang Shijie1-1/+4
Assume that: tmp = ((extid >> 2) & 0x04) | (extid & 0x03)); From the K9LCG08U0B's datasheet, we know that: the oob size is 640 when tmp is 6; the oob size is 1024 when tmp is 7; Signed-off-by: Huang Shijie <b32955@freescale.com> [Brian: fixed compile issue] Signed-off-by: Brian Norris <computersforpeace@gmail.com>
2014-01-20mtd: nand: pxa3xx: Add support for 2048 bytes page size devicesRodolfo Giometti1-0/+21
This commit adds support for devices with 2048B page sizes and 4-bit ECC strength requirements. This is achieved by enabling the BCH ECC engine, which provides a higher strength: 16-bit over 2048 bytes. Additionally, add a proper ECC layout to model the controller's view of the device (where 'U' means unused and 'B' is the bad block marker): ---------------------------------------------------- | 2048B data | B | B | 30B spare | 30B ECC | U | U | ---------------------------------------------------- Signed-off-by: Rodolfo Giometti <giometti@linux.it> [Brian: updated with Ezequiel's patch description] Acked-by: Ezequiel Garcia <ezequiel.garcia@free-electrons.com> Signed-off-by: Brian Norris <computersforpeace@gmail.com>
2014-01-16mtd: m25p80: Use OPCODE_QUAD_READ_4B for 4-byte addressingGeert Uytterhoeven1-1/+1
commit 3487a63955c34ea508bcf4ca5131ddd953876e2d ("drivers: mtd: m25p80: add quad read support") in -next added both the 3-byte OPCODE_QUAD_READ and the 4-byte OPCODE_QUAD_READ_4B, but incorrectly uses OPCODE_QUAD_READ for both 3-byte and 4-byte addressing. Use OPCODE_QUAD_READ_4B in the 4-byte case to fix this. Signed-off-by: Geert Uytterhoeven <geert+renesas@linux-m68k.org> Acked-by: Marek Vasut <marex@denx.de> Signed-off-by: Brian Norris <computersforpeace@gmail.com>
2014-01-14mtd: nand: don't use {read,write}_buf for 8-bit transfersUwe Kleine-König1-2/+55
According to the Open NAND Flash Interface Specification (ONFI) Revision 3.1 "Parameters are always transferred on the lower 8-bits of the data bus." for the Get Features and Set Features commands. So using read_buf and write_buf is wrong for 16-bit wide nand chips as they use I/O[15:0]. The Get Features command is easily fixed using 4 times the read_byte callback. For Set Features implement a new overwritable callback "write_byte". Still I expect the default to work just fine for all controllers and making it overwriteable was just done for symmetry. Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> [Brian: fixed warning] Tested-by: Brian Norris <computersforpeace@gmail.com> Signed-off-by: Brian Norris <computersforpeace@gmail.com>
2014-01-13mtd: nand: support Micron READ RETRYBrian Norris1-0/+27
Micron provides READ RETRY support via the ONFI vendor-specific parameter block (to indicate how many read-retry modes are available) and the ONFI {GET,SET}_FEATURES commands with a vendor-specific feature address (to support reading/switching the current read-retry mode). The recommended sequence is as follows: 1. Perform PAGE_READ operation 2. If no ECC error, we are done 3. Run SET_FEATURES with feature address 89h, mode 1 4. Retry PAGE_READ operation 5. If ECC error and there are remaining supported modes, increment the mode and return to step 3. Otherwise, this is a true ECC error. 6. Run SET_FEATURES with feature address 89h, mode 0, to return to the default state. This patch implements the chip->setup_read_retry() callback for Micron and fills in the chip->read_retries. Tested on Micron MT29F32G08CBADA, which supports 8 read-retry modes. The Micron vendor-specific table was checked against the datasheets for the following Micron NAND: Needs retry Cell-type Part number Vendor revision Byte 180 ----------- --------- ---------------- --------------- ------------ No SLC MT29F16G08ABABA 1 Reserved (0) No MLC MT29F32G08CBABA 1 Reserved (0) No SLC MT29F1G08AACWP 1 0 Yes MLC MT29F32G08CBADA 1 08h Yes MLC MT29F64G08CBABA 2 08h Signed-off-by: Brian Norris <computersforpeace@gmail.com> Acked-by: Huang Shijie <b32955@freescale.com>
2014-01-13mtd: nand: add generic READ RETRY supportBrian Norris1-4/+52
Modern MLC (and even SLC?) NAND can experience a large number of bitflips (beyond the recommended correctability capacity) due to drifts in the voltage threshold (Vt). These bitflips can cause ECC errors to occur well within the expected lifetime of the flash. To account for this, some manufacturers provide a mechanism for shifting the Vt threshold after a corrupted read. The generic pattern seems to be that a particular flash has N read retry modes (where N = 0, traditionally), and after an ECC failure, the host should reconfigure the flash to use the next available mode, then retry the read operation. This process repeats until all bitfips can be corrected or until the host has tried all available retry modes. This patch adds the infrastructure support for a vendor-specific/flash-specific callback, used for setting the read-retry mode (i.e., voltage threshold). For now, this patch always returns the flash to mode 0 (the default mode) after a successful read-retry, according to the flowchart found in Micron's datasheets. This may need to change in the future if it is determined that eventually, mode 0 is insufficient for the majority of the flash cells (and so for performance reasons, we should leave the flash in mode 1, 2, etc.). Signed-off-by: Brian Norris <computersforpeace@gmail.com> Acked-by: Huang Shijie <b32955@freescale.com>
2014-01-13mtd: nand: localize ECC failures per pageBrian Norris1-5/+8
ECC failures can be tracked at the page level, not the do_read_ops level (i.e., a potentially multi-page transaction). This helps prepare for READ RETRY support. Signed-off-by: Brian Norris <computersforpeace@gmail.com> Acked-by: Huang Shijie <b32955@freescale.com>
2014-01-12mtd: nand: pxa3xx: Add "armada370-nand" compatibleEzequiel Garcia1-0/+4
Now that the driver can support the Armada 370/XP SoC NAND controller, add the devicetree compatible string, enabling its use. Signed-off-by: Ezequiel Garcia <ezequiel.garcia@free-electrons.com> Acked-by: Jason Cooper <jason@lakedaemon.net> Signed-off-by: Brian Norris <computersforpeace@gmail.com>
2014-01-11mtd: denali: kill the NAND_MAX_PAGESIZE/NAND_MAX_OOBSIZEHuang Shijie2-24/+31
This patch kills the NAND_MAX_PAGESIZE/NAND_MAX_OOBSIZE by the following way: 1.) change the @buf field of nand_buf{} from an array to a pointer. also remove the DENALI_BUF_SIZE macro. 2.) Before we call the nand_scan_ident, we allocate a temporary buffer whose size is PAGE_SIZE. 3.) After we finish the nand_scan_ident, we have already getten the page size and oob size. We will allocate the right buffer size again. Signed-off-by: Huang Shijie <shijie8@gmail.com> Reviewed-by: Josh Triplett <josh@joshtriplett.org> Signed-off-by: Brian Norris <computersforpeace@gmail.com>
2014-01-11mtd: mxc-nand: kill the NAND_MAX_PAGESIZE/NAND_MAX_OOBSIZEHuang Shijie1-3/+15
We kill the NAND_MAX_PAGESIZE/NAND_MAX_OOBSIZE by the following way: 1.) Before we call the nand_scan_ident, we allocate a temporary buffer whose size is PAGE_SIZE. 2.) After we finish the nand_scan_ident, we have already getten the page size and oob size. We will allocate the right buffer size again. Signed-off-by: Huang Shijie <shijie8@gmail.com> Reviewed-by: Josh Triplett <josh@joshtriplett.org> Signed-off-by: Brian Norris <computersforpeace@gmail.com>
2014-01-11mtd: nand: Update mtd.name assignment type to u64 for IFC, eLBCPrabhakar Kushwaha2-2/+2
mtd.name is assigned to IFC NAND physical address. Assignment type is u32. It is not providing correct physical address of IFC NAND. Update assignment type to u64. Signed-off-by: Prabhakar Kushwaha <prabhakar@freescale.com> Signed-off-by: Brian Norris <computersforpeace@gmail.com>
2014-01-11mtd: nand: assign mtd->name in find_full_id_nandCai Zhiyong1-0/+3
This patch assigned the type->name to mtd->name when mtd->name is NULL in function "find_full_id_nand". mtd->name is NULL may cause some problem. Signed-off-by: Cai Zhiyong <caizhiyong@huawei.com> Acked-by: Huang Shijie <b32955@freescale.com> Signed-off-by: Brian Norris <computersforpeace@gmail.com>
2014-01-11mtd: onenand: Trivial cleanup in samsung.hSachin Kamat1-2/+0
commit 93115b7fa8f4 ("mtd: onenand/samsung: make regs-onenand.h file local") moved the file to the current location but forgot to remove the pointer to its previous location. Clean it up. Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org> Signed-off-by: Brian Norris <computersforpeace@gmail.com>
2014-01-09mtd: denali: Drop print of build date/timeJosh Triplett1-1/+0
The kernel already has this information, and individual drivers shouldn't duplicate that. This also eliminates the use of __DATE__ and __TIME__, which make the build non-deterministic. Signed-off-by: Josh Triplett <josh@joshtriplett.org> Reviewed-by: Jingoo Han <jg1.han@samsung.com> Signed-off-by: Brian Norris <computersforpeace@gmail.com>
2014-01-07mtd: bcm47xxpart: alternative MAGIC for board_data partitionRafał Miłecki1-0/+16
Some devices (like WNDR3700v3) have board_data without MPFR magic, some extra header or extra NVRAM around 0x100. In such case we have to look for another magic which is BD 0B 0D BD (BD probably stands for Board Data). It's located "far far away", so instead of extending buffer add another mtd_read. Signed-off-by: Rafał Miłecki <zajec5@gmail.com> Signed-off-by: Brian Norris <computersforpeace@gmail.com>
2014-01-07mtd: bcm47xxpart: find boot partition by CFE magicRafał Miłecki1-3/+5
Some devices have even nicer-to-recognize CFE thanks to the magic. Signed-off-by: Rafał Miłecki <zajec5@gmail.com> Signed-off-by: Brian Norris <computersforpeace@gmail.com>
2014-01-07mtd: Hide CONFIG_MTD_BLKDEVS from the menuEzequiel Garcia1-3/+4
Make this option a hidden one and get a cleaner configuration. This option just selects a common infrastructure for MTD-based devices to expose a block interface. There is no point in allowing a separate enable/disable. Signed-off-by: Ezequiel Garcia <ezequiel.garcia@free-electrons.com> [Brian: keep symbol as tristate] Signed-off-by: Brian Norris <computersforpeace@gmail.com>
2014-01-07mtd: onenand: fix warning (integer used as pointer)Brian Norris1-1/+1
Fixes this sparse warning: CHECK drivers/mtd/onenand/generic.c drivers/mtd/onenand/generic.c:61:62: warning: Using plain integer as NULL pointer Signed-off-by: Brian Norris <computersforpeace@gmail.com>
2014-01-07mtd: omap2: use nand_base defaults for polled I/OBrian Norris1-7/+1
The omap_{read,write}_buf{8,16}() functions are identical to the default nand_base versions. Just let nand_base assign them in the NAND_OMAP_POLLED case. Signed-off-by: Brian Norris <computersforpeace@gmail.com> Tested-by: Pekon Gupta <pekon@ti.com>
2014-01-07mtd: nand-gpio: don't waste memory for OF failureBrian Norris1-2/+6
We shouldn't try to allocate a resource until we're sure the of_property_read_u64() call didn't fail. This is especially important if we use this code for both CONFIG_OF and !CONFIG_OF builds, since of_property_read_u64() will always return -ENOSYS for !CONFIG_OF. Signed-off-by: Brian Norris <computersforpeace@gmail.com>
2014-01-07mtd: plat_nand: Remove unnecessary OOM messagesJingoo Han1-3/+1
The site-specific OOM messages are unnecessary, because they duplicate the MM subsystem generic OOM message. Signed-off-by: Jingoo Han <jg1.han@samsung.com> Signed-off-by: Brian Norris <computersforpeace@gmail.com>
2014-01-07mtd: plat_nand: Use devm_*() functionsJingoo Han1-25/+6
Use devm_*() functions to make cleanup paths simpler. Signed-off-by: Jingoo Han <jg1.han@samsung.com> Signed-off-by: Brian Norris <computersforpeace@gmail.com>
2014-01-07mtd: ixp4xx: Use devm_*() functionsJingoo Han1-22/+6
Use devm_*() functions to make cleanup paths simpler. Signed-off-by: Jingoo Han <jg1.han@samsung.com> Signed-off-by: Brian Norris <computersforpeace@gmail.com>
2014-01-07mtd: sharpsl: use dev_err() instead of printk()Jingoo Han1-1/+1
Use dev_err() instead of printk() to provide a better message to userspace. Signed-off-by: Jingoo Han <jg1.han@samsung.com> Signed-off-by: Brian Norris <computersforpeace@gmail.com>
2014-01-07mtd: orion_nand: use dev_err() instead of printk()Jingoo Han1-1/+1
Use dev_err() instead of printk() to provide a better message to userspace. Signed-off-by: Jingoo Han <jg1.han@samsung.com> Signed-off-by: Brian Norris <computersforpeace@gmail.com>
2014-01-07mtd: fsmc_nand: use dev_warn() instead of printk()Jingoo Han1-4/+4
Use dev_warn() instead of printk() to provide a better message to userspace. Signed-off-by: Jingoo Han <jg1.han@samsung.com> Acked-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Brian Norris <computersforpeace@gmail.com>
2014-01-07mtd: atmel_nand: use dev_err() instead of printk()Jingoo Han1-2/+2
Use dev_err() instead of printk() to provide a better message to userspace. Signed-off-by: Jingoo Han <jg1.han@samsung.com> Acked-by: Josh Wu <josh.wu@atmel.com> Signed-off-by: Brian Norris <computersforpeace@gmail.com>
2014-01-07mtd: sh_flctl: Remove unnecessary OOM messagesJingoo Han1-6/+2
The site-specific OOM messages are unnecessary, because they duplicate the MM subsystem generic OOM message. Signed-off-by: Jingoo Han <jg1.han@samsung.com> Signed-off-by: Brian Norris <computersforpeace@gmail.com>
2014-01-07mtd: s3c2410: Remove unnecessary OOM messagesJingoo Han1-2/+0
The site-specific OOM messages are unnecessary, because they duplicate the MM subsystem generic OOM message. Signed-off-by: Jingoo Han <jg1.han@samsung.com> Signed-off-by: Brian Norris <computersforpeace@gmail.com>
2014-01-07mtd: mpc5121_nfc: Remove unnecessary OOM messagesJingoo Han1-3/+1
The site-specific OOM messages are unnecessary, because they duplicate the MM subsystem generic OOM message. Signed-off-by: Jingoo Han <jg1.han@samsung.com> Signed-off-by: Brian Norris <computersforpeace@gmail.com>
2014-01-07mtd: lpc32xx_slc: Remove unnecessary OOM messagesJingoo Han1-7/+2
The site-specific OOM messages are unnecessary, because they duplicate the MM subsystem generic OOM message. Signed-off-by: Jingoo Han <jg1.han@samsung.com> Acked-by: Roland Stigge <stigge@antcom.de> Signed-off-by: Brian Norris <computersforpeace@gmail.com>
2014-01-07mtd: lpc32xx_mlc: Remove unnecessary OOM messagesJingoo Han1-8/+2
The site-specific OOM messages are unnecessary, because they duplicate the MM subsystem generic OOM message. Signed-off-by: Jingoo Han <jg1.han@samsung.com> Acked-by: Roland Stigge <stigge@antcom.de> Signed-off-by: Brian Norris <computersforpeace@gmail.com>
2014-01-07mtd: nand-gpio: Remove unnecessary OOM messagesJingoo Han1-3/+1
The site-specific OOM messages are unnecessary, because they duplicate the MM subsystem generic OOM message. Signed-off-by: Jingoo Han <jg1.han@samsung.com> Signed-off-by: Brian Norris <computersforpeace@gmail.com>
2014-01-07mtd: fsmc_nand: Remove unnecessary OOM messagesJingoo Han1-6/+2
The site-specific OOM messages are unnecessary, because they duplicate the MM subsystem generic OOM message. Signed-off-by: Jingoo Han <jg1.han@samsung.com> Acked-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Brian Norris <computersforpeace@gmail.com>
2014-01-03mtd: davinci_nand: Remove unnecessary OOM messagesJingoo Han1-3/+1
The site-specific OOM messages are unnecessary, because they duplicate the MM subsystem generic OOM message. Signed-off-by: Jingoo Han <jg1.han@samsung.com> Signed-off-by: Brian Norris <computersforpeace@gmail.com>
2014-01-03mtd: txx9ndfmc: Remove unnecessary OOM messagesJingoo Han1-4/+1
The site-specific OOM messages are unnecessary, because they duplicate the MM subsystem generic OOM message. Signed-off-by: Jingoo Han <jg1.han@samsung.com> Signed-off-by: Brian Norris <computersforpeace@gmail.com>
2014-01-03mtd: jz4740_nand: Remove unnecessary OOM messagesJingoo Han1-3/+1
The site-specific OOM messages are unnecessary, because they duplicate the MM subsystem generic OOM message. Signed-off-by: Jingoo Han <jg1.han@samsung.com> Signed-off-by: Brian Norris <computersforpeace@gmail.com>
2014-01-03mtd: fsl_ifc_nand: Remove unnecessary OOM messagesJingoo Han1-1/+0
The site-specific OOM messages are unnecessary, because they duplicate the MM subsystem generic OOM message. Signed-off-by: Jingoo Han <jg1.han@samsung.com> Signed-off-by: Brian Norris <computersforpeace@gmail.com>
2014-01-03mtd: fsl_elbc_nand: Remove unnecessary OOM messagesJingoo Han1-1/+0
The site-specific OOM messages are unnecessary, because they duplicate the MM subsystem generic OOM message. Signed-off-by: Jingoo Han <jg1.han@samsung.com> Signed-off-by: Brian Norris <computersforpeace@gmail.com>
2014-01-03mtd: diskonchip: Remove unnecessary OOM messagesJingoo Han1-3/+0
The site-specific OOM messages are unnecessary, because they duplicate the MM subsystem generic OOM message. Signed-off-by: Jingoo Han <jg1.han@samsung.com> Signed-off-by: Brian Norris <computersforpeace@gmail.com>
2014-01-03mtd: cs553x_nand: Remove unnecessary OOM messagesJingoo Han1-1/+0
The site-specific OOM messages are unnecessary, because they duplicate the MM subsystem generic OOM message. Signed-off-by: Jingoo Han <jg1.han@samsung.com> Signed-off-by: Brian Norris <computersforpeace@gmail.com>
2014-01-03mtd: cmx270_nand: Remove unnecessary OOM messagesJingoo Han1-1/+0
The site-specific OOM messages are unnecessary, because they duplicate the MM subsystem generic OOM message. Signed-off-by: Jingoo Han <jg1.han@samsung.com> Signed-off-by: Brian Norris <computersforpeace@gmail.com>
2014-01-03mtd: cafe_nand: Remove unnecessary OOM messagesJingoo Han1-3/+1
The site-specific OOM messages are unnecessary, because they duplicate the MM subsystem generic OOM message. Signed-off-by: Jingoo Han <jg1.han@samsung.com> Signed-off-by: Brian Norris <computersforpeace@gmail.com>
2014-01-03mtd: bf5xx_nand: Remove unnecessary OOM messagesJingoo Han1-1/+0
The site-specific OOM messages are unnecessary, because they duplicate the MM subsystem generic OOM message. Signed-off-by: Jingoo Han <jg1.han@samsung.com> Acked-by: Mike Frysinger <vapier@gentoo.org> Signed-off-by: Brian Norris <computersforpeace@gmail.com>
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