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authorFelix Fietkau <nbd@openwrt.org>2014-08-07 12:40:53 +0000
committerFelix Fietkau <nbd@openwrt.org>2014-08-07 12:40:53 +0000
commitff536dcd1ca51df92622d7e9216e4cd908f07837 (patch)
tree678abd256de087993fc1dd84f181aacf099d5b04 /target/linux/ar71xx/patches-3.14/403-mtd_fix_cfi_cmdset_0002_status_check.patch
parentce71c40c2491c5ce841e62b9ce0e73efb6339049 (diff)
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ar71xx: add linux 3.14 support
Signed-off-by: Zhao, Gang <gang.zhao.42@gmail.com> Signed-off-by: Felix Fietkau <nbd@openwrt.org> git-svn-id: svn://svn.openwrt.org/openwrt/trunk@42038 3c298f89-4303-0410-b956-a3cf2f4a3e73
Diffstat (limited to 'target/linux/ar71xx/patches-3.14/403-mtd_fix_cfi_cmdset_0002_status_check.patch')
-rw-r--r--target/linux/ar71xx/patches-3.14/403-mtd_fix_cfi_cmdset_0002_status_check.patch69
1 files changed, 69 insertions, 0 deletions
diff --git a/target/linux/ar71xx/patches-3.14/403-mtd_fix_cfi_cmdset_0002_status_check.patch b/target/linux/ar71xx/patches-3.14/403-mtd_fix_cfi_cmdset_0002_status_check.patch
new file mode 100644
index 0000000000..88d3ab7478
--- /dev/null
+++ b/target/linux/ar71xx/patches-3.14/403-mtd_fix_cfi_cmdset_0002_status_check.patch
@@ -0,0 +1,69 @@
+--- a/drivers/mtd/chips/cfi_cmdset_0002.c
++++ b/drivers/mtd/chips/cfi_cmdset_0002.c
+@@ -1306,8 +1306,8 @@ static int __xipram do_write_oneword(str
+ break;
+ }
+
+- if (chip_ready(map, adr))
+- break;
++ if (chip_good(map, adr, datum))
++ goto enable_xip;
+
+ /* Latency issues. Drop the lock, wait a while and retry */
+ UDELAY(map, chip, adr, 1);
+@@ -1323,6 +1323,8 @@ static int __xipram do_write_oneword(str
+
+ ret = -EIO;
+ }
++
++ enable_xip:
+ xip_enable(map, chip, adr);
+ op_done:
+ chip->state = FL_READY;
+@@ -1893,7 +1895,6 @@ static int cfi_amdstd_panic_write(struct
+ return 0;
+ }
+
+-
+ /*
+ * Handle devices with one erase region, that only implement
+ * the chip erase command.
+@@ -1957,8 +1958,8 @@ static int __xipram do_erase_chip(struct
+ chip->erase_suspended = 0;
+ }
+
+- if (chip_ready(map, adr))
+- break;
++ if (chip_good(map, adr, map_word_ff(map)))
++ goto op_done;
+
+ if (time_after(jiffies, timeo)) {
+ printk(KERN_WARNING "MTD %s(): software timeout\n",
+@@ -1978,6 +1979,7 @@ static int __xipram do_erase_chip(struct
+ ret = -EIO;
+ }
+
++ op_done:
+ chip->state = FL_READY;
+ xip_enable(map, chip, adr);
+ DISABLE_VPP(map);
+@@ -2046,9 +2048,9 @@ static int __xipram do_erase_oneblock(st
+ chip->erase_suspended = 0;
+ }
+
+- if (chip_ready(map, adr)) {
++ if (chip_good(map, adr, map_word_ff(map))) {
+ xip_enable(map, chip, adr);
+- break;
++ goto op_done;
+ }
+
+ if (time_after(jiffies, timeo)) {
+@@ -2070,6 +2072,7 @@ static int __xipram do_erase_oneblock(st
+ ret = -EIO;
+ }
+
++ op_done:
+ chip->state = FL_READY;
+ DISABLE_VPP(map);
+ put_chip(map, chip, adr);