From: TsiChung Liew Tsi-Chung.Liew@freescale.com
New implement sector lock and unlock or softlock commands do not exist in AMD legacy flash. Thus, causing issue when erasing AMD legacy flash (such as lv040)
Signed-off-by: TsiChung Liew Tsi-Chung.Liew@freescale.com --- drivers/mtd/cfi_flash.c | 12 +++++++++--- 1 files changed, 9 insertions(+), 3 deletions(-)
diff --git a/drivers/mtd/cfi_flash.c b/drivers/mtd/cfi_flash.c index 58295fe..a412938 100644 --- a/drivers/mtd/cfi_flash.c +++ b/drivers/mtd/cfi_flash.c @@ -1369,9 +1369,6 @@ int flash_real_protect (flash_info_t * info, long sector, int prot) break; case CFI_CMDSET_AMD_EXTENDED: case CFI_CMDSET_AMD_STANDARD: -#ifdef CONFIG_FLASH_CFI_LEGACY - case CFI_CMDSET_AMD_LEGACY: -#endif /* U-Boot only checks the first byte */ if (info->manufacturer_id == (uchar)ATM_MANUFACT) { if (prot) { @@ -1392,6 +1389,15 @@ int flash_real_protect (flash_info_t * info, long sector, int prot) } } break; +#ifdef CONFIG_FLASH_CFI_LEGACY + case CFI_CMDSET_AMD_LEGACY: + flash_write_cmd (info, sector, 0, FLASH_CMD_CLEAR_STATUS); + flash_write_cmd (info, sector, 0, FLASH_CMD_PROTECT); + if (prot) + flash_write_cmd (info, sector, 0, FLASH_CMD_PROTECT_SET); + else + flash_write_cmd (info, sector, 0, FLASH_CMD_PROTECT_CLEAR); +#endif };
if ((retcode =