add fix for samsung flash chips

SVN-Revision: 5284
18 years ago · 28a3cb3ca3
parent 2de45e8abd
commit 28a3cb3ca3
1 changed files with 38 additions and 0 deletions
--- a/target/linux/generic-2.6/patches/007-samsung_flash.patch
+++ 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 */