Since commit ff94bc40af34 (mtd, ubi, ubifs: resync with Linux-3.14), the "nand scrub" command has not been working.
The scrub is a U-Boot extension and we have to modify nand_base.c that originates in Linux.
Mark the code with #ifdef __UBOOT__ so we will never accidentally drop it when we re-sync the NAND framework with Linux in the future.
Signed-off-by: Masahiro Yamada yamada.m@jp.panasonic.com Cc: Scott Wood scottwood@freescale.com Cc: Heiko Schocher hs@denx.de ---
drivers/mtd/nand/nand_base.c | 5 +++++ include/linux/mtd/mtd.h | 2 ++ 2 files changed, 7 insertions(+)
diff --git a/drivers/mtd/nand/nand_base.c b/drivers/mtd/nand/nand_base.c index 70e780c..83bd033 100644 --- a/drivers/mtd/nand/nand_base.c +++ b/drivers/mtd/nand/nand_base.c @@ -2905,8 +2905,13 @@ int nand_erase_nand(struct mtd_info *mtd, struct erase_info *instr, WATCHDOG_RESET();
/* Check if we have a bad block, we do not erase bad blocks! */ +#ifdef __UBOOT__ + if (!instr->scrub && nand_block_checkbad(mtd, ((loff_t) page) << + chip->page_shift, 0, allowbbt)) { +#else if (nand_block_checkbad(mtd, ((loff_t) page) << chip->page_shift, 0, allowbbt)) { +#endif pr_warn("%s: attempt to erase a bad block at page 0x%08x\n", __func__, page); instr->state = MTD_ERASE_FAILED; diff --git a/include/linux/mtd/mtd.h b/include/linux/mtd/mtd.h index 8666413..2b4e218 100644 --- a/include/linux/mtd/mtd.h +++ b/include/linux/mtd/mtd.h @@ -52,7 +52,9 @@ struct erase_info { u_long priv; u_char state; struct erase_info *next; +#ifdef __UBOOT__ int scrub; +#endif };
struct mtd_erase_region_info {