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authorJohn Crispin <blogic@openwrt.org>2015-02-15 19:45:29 +0000
committerJohn Crispin <blogic@openwrt.org>2015-02-15 19:45:29 +0000
commitc77c54e6845c201483a75dfc931f7065d3d35c84 (patch)
treeba56f28512a840dcad307d78c1c063637a014f36 /target/linux/ar71xx/patches-3.18/403-mtd_fix_cfi_cmdset_0002_status_check.patch
parentbeb7f2ac7b5c617cd3e1b0060c15b1e71f8faa5c (diff)
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ar71xx: add v3.18 support
Signed-off-by: John Crispin <blogic@openwrt.org> git-svn-id: svn://svn.openwrt.org/openwrt/trunk@44456 3c298f89-4303-0410-b956-a3cf2f4a3e73
Diffstat (limited to 'target/linux/ar71xx/patches-3.18/403-mtd_fix_cfi_cmdset_0002_status_check.patch')
-rw-r--r--target/linux/ar71xx/patches-3.18/403-mtd_fix_cfi_cmdset_0002_status_check.patch69
1 files changed, 69 insertions, 0 deletions
diff --git a/target/linux/ar71xx/patches-3.18/403-mtd_fix_cfi_cmdset_0002_status_check.patch b/target/linux/ar71xx/patches-3.18/403-mtd_fix_cfi_cmdset_0002_status_check.patch
new file mode 100644
index 0000000000..1ccce4ecec
--- /dev/null
+++ b/target/linux/ar71xx/patches-3.18/403-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
+@@ -1632,8 +1632,8 @@ 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);
+@@ -1649,6 +1649,8 @@ static int __xipram do_write_oneword(str
+
+ ret = -EIO;
+ }
++
++ enable_xip:
+ xip_enable(map, chip, adr);
+ op_done:
+ if (mode == FL_OTP_WRITE)
+@@ -2227,7 +2229,6 @@ static int cfi_amdstd_panic_write(struct
+ return 0;
+ }
+
+-
+ /*
+ * Handle devices with one erase region, that only implement
+ * the chip erase command.
+@@ -2291,8 +2292,8 @@ 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",
+@@ -2312,6 +2313,7 @@ static int __xipram do_erase_chip(struct
+ ret = -EIO;
+ }
+
++ op_done:
+ chip->state = FL_READY;
+ xip_enable(map, chip, adr);
+ DISABLE_VPP(map);
+@@ -2380,9 +2382,9 @@ 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)) {
+@@ -2404,6 +2406,7 @@ static int __xipram do_erase_oneblock(st
+ ret = -EIO;
+ }
+
++ op_done:
+ chip->state = FL_READY;
+ DISABLE_VPP(map);
+ put_chip(map, chip, adr);