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openwrt-xburst/target/linux/amazon/patches-3.3/160-cfi-swap.patch
hauke c8c0045b91 amazon: update amazon target to kernel 3.3
This is just compile tested, my device is currently not working.


git-svn-id: svn://svn.openwrt.org/openwrt/trunk@31706 3c298f89-4303-0410-b956-a3cf2f4a3e73
2012-05-13 15:10:40 +00:00

57 lines
1.4 KiB
Diff

--- a/drivers/mtd/chips/cfi_cmdset_0002.c
+++ b/drivers/mtd/chips/cfi_cmdset_0002.c
@@ -1152,6 +1152,9 @@ static int __xipram do_write_oneword(str
int retry_cnt = 0;
adr += chip->start;
+#ifdef CONFIG_AMAZON
+ adr ^= 2;
+#endif
mutex_lock(&chip->mutex);
ret = get_chip(map, chip, adr, FL_WRITING);
@@ -1420,7 +1423,11 @@ 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);
@@ -1665,6 +1672,9 @@ static int __xipram do_erase_oneblock(st
int ret = 0;
adr += chip->start;
+#ifdef CONFIG_AMAZON
+ adr ^= 2;
+#endif
mutex_lock(&chip->mutex);
ret = get_chip(map, chip, adr, FL_ERASING);
@@ -1793,6 +1803,10 @@ static int do_atmel_lock(struct map_info
struct cfi_private *cfi = map->fldrv_priv;
int ret;
+#ifdef CONFIG_AMAZON
+ adr ^= 2;
+#endif
+
mutex_lock(&chip->mutex);
ret = get_chip(map, chip, adr + chip->start, FL_LOCKING);
if (ret)
@@ -1828,6 +1842,10 @@ static int do_atmel_unlock(struct map_in
struct cfi_private *cfi = map->fldrv_priv;
int ret;
+#ifdef CONFIG_AMAZON
+ adr ^= 2;
+#endif
+
mutex_lock(&chip->mutex);
ret = get_chip(map, chip, adr + chip->start, FL_UNLOCKING);
if (ret)