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openwrt-xburst/target/linux/generic-2.6/patches-2.6.22/007-samsung_flash.patch
nbd e6a68af9e9 prepare for the transition to linux 2.6.22 - make it possible to override the kernel version in the target makefile
git-svn-id: svn://svn.openwrt.org/openwrt/trunk@7644 3c298f89-4303-0410-b956-a3cf2f4a3e73
2007-06-16 01:56:04 +00:00

38 lines
1.5 KiB
Diff

diff -urN linux-2.6.21.1.old/drivers/mtd/chips/cfi_cmdset_0002.c linux-2.6.21.1.dev/drivers/mtd/chips/cfi_cmdset_0002.c
--- linux-2.6.21.1.old/drivers/mtd/chips/cfi_cmdset_0002.c 2007-04-27 23:49:26.000000000 +0200
+++ linux-2.6.21.1.dev/drivers/mtd/chips/cfi_cmdset_0002.c 2007-05-26 19:30:01.049193968 +0200
@@ -51,6 +51,7 @@
#define SST49LF040B 0x0050
#define SST49LF008A 0x005a
#define AT49BV6416 0x00d6
+#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 *);
@@ -294,12 +295,19 @@
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;
+ 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 */