From 4e00acded2e6a8d663e12690a0f0f08f5bec5a58 Mon Sep 17 00:00:00 2001
From: TsiChung Liew <Tsi-Chung.Liew@freescale.com>
Date: Tue, 19 Aug 2008 16:53:39 +0000
Subject: [PATCH] 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 <Tsi-Chung.Liew@freescale.com>
Signed-off-by: Stefan Roese <sr@denx.de>
---
drivers/mtd/cfi_flash.c | 12 +++++++++---
1 file changed, 9 insertions(+), 3 deletions(-)
diff --git a/drivers/mtd/cfi_flash.c b/drivers/mtd/cfi_flash.c
index 58295fe0487..a41293871e2 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 =
--
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