From 4e00acded2e6a8d663e12690a0f0f08f5bec5a58 Mon Sep 17 00:00:00 2001 From: TsiChung Liew Date: Tue, 19 Aug 2008 16:53:39 +0000 Subject: CFI: Fix AMD Legacy sector protect 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 Signed-off-by: Stefan Roese --- drivers/mtd/cfi_flash.c | 12 +++++++++--- 1 file changed, 9 insertions(+), 3 deletions(-) (limited to 'drivers') 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 = -- cgit v1.1