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add fix for samsung flash chips

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git-svn-id: svn://svn.openwrt.org/openwrt/trunk@5284 3c298f89-4303-0410-b956-a3cf2f4a3e73
This commit is contained in:
nbd 2006-10-24 18:05:05 +00:00
parent 1ef2ce4dd2
commit 944dc84100
1 changed files with 38 additions and 0 deletions
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38
target/linux/generic-2.6/patches/007-samsung_flash.patch Normal file
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@ -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 */