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openwrt-xburst/target/linux/amazon/patches-2.6.32/160-cfi-swap.patch
hauke 84e11fcd5a [amazon] Add kernel 2.6.32 support
git-svn-id: svn://svn.openwrt.org/openwrt/trunk@19458 3c298f89-4303-0410-b956-a3cf2f4a3e73
2010-01-31 15:13:14 +00:00

57 lines
1.3 KiB
Diff

--- a/drivers/mtd/chips/cfi_cmdset_0002.c
+++ b/drivers/mtd/chips/cfi_cmdset_0002.c
@@ -1079,6 +1079,9 @@ static int __xipram do_write_oneword(str
int retry_cnt = 0;
adr += chip->start;
+#ifdef CONFIG_AMAZON
+ adr ^= 2;
+#endif
spin_lock(chip->mutex);
ret = get_chip(map, chip, adr, FL_WRITING);
@@ -1361,7 +1364,11 @@ static int __xipram do_write_buffer(stru
z = 0;
while(z < words * map_bankwidth(map)) {
datum = map_word_load(map, buf);
+#ifdef CONFIG_AMAZON
+ map_write(map, datum, (adr + z) ^ 0x2);
+#else
map_write(map, datum, adr + z);
+#endif
z += map_bankwidth(map);
buf += map_bankwidth(map);
@@ -1606,6 +1613,9 @@ static int __xipram do_erase_oneblock(st
int ret = 0;
adr += chip->start;
+#ifdef CONFIG_AMAZON
+ adr ^= 2;
+#endif
spin_lock(chip->mutex);
ret = get_chip(map, chip, adr, FL_ERASING);
@@ -1734,6 +1744,10 @@ static int do_atmel_lock(struct map_info
struct cfi_private *cfi = map->fldrv_priv;
int ret;
+#ifdef CONFIG_AMAZON
+ adr ^= 2;
+#endif
+
spin_lock(chip->mutex);
ret = get_chip(map, chip, adr + chip->start, FL_LOCKING);
if (ret)
@@ -1770,6 +1784,10 @@ static int do_atmel_unlock(struct map_in
struct cfi_private *cfi = map->fldrv_priv;
int ret;
+#ifdef CONFIG_AMAZON
+ adr ^= 2;
+#endif
+
spin_lock(chip->mutex);
ret = get_chip(map, chip, adr + chip->start, FL_UNLOCKING);
if (ret)