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authorFrieder Schrempf <frieder.schrempf@kontron.de>2019-04-17 12:36:36 +0000
committerMiquel Raynal <miquel.raynal@bootlin.com>2019-04-18 08:54:07 +0200
commitbb5925480b13f52ad2e29ab20695c7f27e10f382 (patch)
tree91fad795e040981f555c78465790ea55055342d9
parentc902467cda2d927dba0d6bd2c2efc1988720b8d6 (diff)
downloadlinux-bb5925480b13f52ad2e29ab20695c7f27e10f382.tar.bz2
mtd: nand: Make flags for bad block marker position more granular
To be able to check and set bad block markers in the first and second page of a block independently of each other, we create separate flags for both cases. Previously NAND_BBM_SECONDPAGE meant, that both, the first and the second page were used. With this patch NAND_BBM_FIRSTPAGE stands for using the first page and NAND_BBM_SECONDPAGE for using the second page. This patch is only for preparation of subsequent changes and does not implement the logic to actually handle both flags separately. Signed-off-by: Frieder Schrempf <frieder.schrempf@kontron.de> Reviewed-by: Boris Brezillon <bbrezillon@kernel.org> Reviewed-by: Miquel Raynal <miquel.raynal@bootlin.com> Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
-rw-r--r--drivers/mtd/nand/raw/nand_amd.c2
-rw-r--r--drivers/mtd/nand/raw/nand_base.c6
-rw-r--r--drivers/mtd/nand/raw/nand_bbt.c3
-rw-r--r--drivers/mtd/nand/raw/nand_esmt.c2
-rw-r--r--drivers/mtd/nand/raw/nand_hynix.c2
-rw-r--r--drivers/mtd/nand/raw/nand_macronix.c2
-rw-r--r--drivers/mtd/nand/raw/nand_micron.c2
-rw-r--r--drivers/mtd/nand/raw/nand_samsung.c2
-rw-r--r--drivers/mtd/nand/raw/nand_toshiba.c2
-rw-r--r--drivers/mtd/nand/raw/sh_flctl.c2
-rw-r--r--include/linux/mtd/rawnand.h1
11 files changed, 15 insertions, 11 deletions
diff --git a/drivers/mtd/nand/raw/nand_amd.c b/drivers/mtd/nand/raw/nand_amd.c
index 9051e4e41eee..1417559d3057 100644
--- a/drivers/mtd/nand/raw/nand_amd.c
+++ b/drivers/mtd/nand/raw/nand_amd.c
@@ -45,7 +45,7 @@ static void amd_nand_decode_id(struct nand_chip *chip)
static int amd_nand_init(struct nand_chip *chip)
{
if (nand_is_slc(chip))
- chip->options |= NAND_BBM_SECONDPAGE;
+ chip->options |= NAND_BBM_FIRSTPAGE | NAND_BBM_SECONDPAGE;
return 0;
}
diff --git a/drivers/mtd/nand/raw/nand_base.c b/drivers/mtd/nand/raw/nand_base.c
index e1111291389a..6e2d728d2fd9 100644
--- a/drivers/mtd/nand/raw/nand_base.c
+++ b/drivers/mtd/nand/raw/nand_base.c
@@ -299,7 +299,8 @@ static int nand_block_bad(struct nand_chip *chip, loff_t ofs)
ofs += mtd->erasesize - mtd->writesize;
page = (int)(ofs >> chip->page_shift) & chip->pagemask;
- page_end = page + ((chip->options & NAND_BBM_SECONDPAGE) ? 2 : 1);
+ page_end = page + (((chip->options & NAND_BBM_FIRSTPAGE) &&
+ (chip->options & NAND_BBM_SECONDPAGE)) ? 2 : 1);
for (; page < page_end; page++) {
res = chip->ecc.read_oob(chip, page);
@@ -516,7 +517,8 @@ static int nand_default_block_markbad(struct nand_chip *chip, loff_t ofs)
i++;
ofs += mtd->writesize;
- } while ((chip->options & NAND_BBM_SECONDPAGE) && i < 2);
+ } while ((chip->options & NAND_BBM_FIRSTPAGE) &&
+ (chip->options & NAND_BBM_SECONDPAGE) && i < 2);
return ret;
}
diff --git a/drivers/mtd/nand/raw/nand_bbt.c b/drivers/mtd/nand/raw/nand_bbt.c
index 4915dd7283bb..4cb664847ef5 100644
--- a/drivers/mtd/nand/raw/nand_bbt.c
+++ b/drivers/mtd/nand/raw/nand_bbt.c
@@ -468,7 +468,8 @@ static int create_bbt(struct nand_chip *this, uint8_t *buf,
pr_info("Scanning device for bad blocks\n");
- if (this->options & NAND_BBM_SECONDPAGE)
+ if ((this->options & NAND_BBM_FIRSTPAGE) &&
+ (this->options & NAND_BBM_SECONDPAGE))
numpages = 2;
else
numpages = 1;
diff --git a/drivers/mtd/nand/raw/nand_esmt.c b/drivers/mtd/nand/raw/nand_esmt.c
index 4320d4c6a7cd..58646ed663ac 100644
--- a/drivers/mtd/nand/raw/nand_esmt.c
+++ b/drivers/mtd/nand/raw/nand_esmt.c
@@ -36,7 +36,7 @@ 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->options |= NAND_BBM_SECONDPAGE;
+ chip->options |= NAND_BBM_FIRSTPAGE | NAND_BBM_SECONDPAGE;
return 0;
}
diff --git a/drivers/mtd/nand/raw/nand_hynix.c b/drivers/mtd/nand/raw/nand_hynix.c
index 33cb10df65b8..7c600c4d5ec8 100644
--- a/drivers/mtd/nand/raw/nand_hynix.c
+++ b/drivers/mtd/nand/raw/nand_hynix.c
@@ -690,7 +690,7 @@ static int hynix_nand_init(struct nand_chip *chip)
if (!nand_is_slc(chip))
chip->options |= NAND_BBM_LASTPAGE;
else
- chip->options |= NAND_BBM_SECONDPAGE;
+ chip->options |= NAND_BBM_FIRSTPAGE | NAND_BBM_SECONDPAGE;
hynix = kzalloc(sizeof(*hynix), GFP_KERNEL);
if (!hynix)
diff --git a/drivers/mtd/nand/raw/nand_macronix.c b/drivers/mtd/nand/raw/nand_macronix.c
index 6db7ced4b96b..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->options |= NAND_BBM_SECONDPAGE;
+ 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 d43e15772f73..cbd4f09ac178 100644
--- a/drivers/mtd/nand/raw/nand_micron.c
+++ b/drivers/mtd/nand/raw/nand_micron.c
@@ -448,7 +448,7 @@ static int micron_nand_init(struct nand_chip *chip)
goto err_free_manuf_data;
if (mtd->writesize == 2048)
- chip->options |= NAND_BBM_SECONDPAGE;
+ chip->options |= NAND_BBM_FIRSTPAGE | NAND_BBM_SECONDPAGE;
ondie = micron_supports_on_die_ecc(chip);
diff --git a/drivers/mtd/nand/raw/nand_samsung.c b/drivers/mtd/nand/raw/nand_samsung.c
index f4db72329b7b..5552ce20ede0 100644
--- a/drivers/mtd/nand/raw/nand_samsung.c
+++ b/drivers/mtd/nand/raw/nand_samsung.c
@@ -133,7 +133,7 @@ static int samsung_nand_init(struct nand_chip *chip)
if (!nand_is_slc(chip))
chip->options |= NAND_BBM_LASTPAGE;
else
- chip->options |= NAND_BBM_SECONDPAGE;
+ 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 67f01cef5651..74ffcae48726 100644
--- a/drivers/mtd/nand/raw/nand_toshiba.c
+++ b/drivers/mtd/nand/raw/nand_toshiba.c
@@ -152,7 +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->options |= NAND_BBM_SECONDPAGE;
+ 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/sh_flctl.c b/drivers/mtd/nand/raw/sh_flctl.c
index 02a6768ab13f..e509c93737c4 100644
--- a/drivers/mtd/nand/raw/sh_flctl.c
+++ b/drivers/mtd/nand/raw/sh_flctl.c
@@ -1177,7 +1177,7 @@ static int flctl_probe(struct platform_device *pdev)
if (pdata->flcmncr_val & SEL_16BIT)
nand->options |= NAND_BUSWIDTH_16;
- nand->options |= NAND_BBM_SECONDPAGE;
+ nand->options |= NAND_BBM_FIRSTPAGE | NAND_BBM_SECONDPAGE;
pm_runtime_enable(&pdev->dev);
pm_runtime_resume(&pdev->dev);
diff --git a/include/linux/mtd/rawnand.h b/include/linux/mtd/rawnand.h
index 8b3e28ef75ce..dbfffa5bec7b 100644
--- a/include/linux/mtd/rawnand.h
+++ b/include/linux/mtd/rawnand.h
@@ -176,6 +176,7 @@ enum nand_ecc_algo {
* Position within the block: Each of these pages needs to be checked for a
* bad block marking pattern.
*/
+#define NAND_BBM_FIRSTPAGE 0x01000000
#define NAND_BBM_SECONDPAGE 0x02000000
#define NAND_BBM_LASTPAGE 0x04000000