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authorFelix Fietkau <nbd@openwrt.org>2006-10-24 18:05:05 +0000
committerFelix Fietkau <nbd@openwrt.org>2006-10-24 18:05:05 +0000
commitc37691ca2ab222706cb2190c85192f6cbace48f0 (patch)
tree4b1628805a8e707e0468d3d76a54a915aa0924ab
parentb9afc6f302196cbb98a3a717055a8a276703ea40 (diff)
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add fix for samsung flash chips
git-svn-id: svn://svn.openwrt.org/openwrt/trunk@5284 3c298f89-4303-0410-b956-a3cf2f4a3e73
-rw-r--r--target/linux/generic-2.6/patches/007-samsung_flash.patch38
1 files changed, 38 insertions, 0 deletions
diff --git a/target/linux/generic-2.6/patches/007-samsung_flash.patch b/target/linux/generic-2.6/patches/007-samsung_flash.patch
new file mode 100644
index 0000000000..93e371fa92
--- /dev/null
+++ b/target/linux/generic-2.6/patches/007-samsung_flash.patch
@@ -0,0 +1,38 @@
+--- linux.old/drivers/mtd/chips/cfi_cmdset_0002.c 2006-10-23 21:14:11.618024794 +0200
++++ linux.dev/drivers/mtd/chips/cfi_cmdset_0002.c 2006-10-24 07:47:52.267007586 +0200
+@@ -49,6 +49,7 @@
+ #define MANUFACTURER_SST 0x00BF
+ #define SST49LF004B 0x0060
+ #define SST49LF008A 0x005a
++#define MANUFACTURER_SAMSUNG 0x00ec
+
+ static int cfi_amdstd_read (struct mtd_info *, loff_t, size_t, size_t *, u_char *);
+ static int cfi_amdstd_write_words(struct mtd_info *, loff_t, size_t, size_t *, const u_char *);
+@@ -254,13 +255,20 @@
+ }
+
+ if (extp->MajorVersion != '1' ||
+- (extp->MinorVersion < '0' || extp->MinorVersion > '4')) {
+- printk(KERN_ERR " Unknown Amd/Fujitsu Extended Query "
+- "version %c.%c.\n", extp->MajorVersion,
+- extp->MinorVersion);
+- kfree(extp);
+- kfree(mtd);
+- return NULL;
++ (extp->MinorVersion < '0' || extp->MinorVersion > '4')) {
++ if (cfi->mfr == MANUFACTURER_SAMSUNG &&
++ (extp->MajorVersion == '3' && extp->MinorVersion == '3')) {
++ printk(KERN_NOTICE " Newer Samsung flash detected, "
++ "should be compatibile with Amd/Fujitsu.\n");
++ }
++ else {
++ printk(KERN_ERR " Unknown Amd/Fujitsu Extended Query "
++ "version %c.%c.\n", extp->MajorVersion,
++ extp->MinorVersion);
++ kfree(extp);
++ kfree(mtd);
++ return NULL;
++ }
+ }
+
+ /* Install our own private info structure */