007-samsung_flash.patch

来自「Linux Home Server 是专门为家庭和SOHO/SMB 设计的高性价」· PATCH 代码 · 共 39 行

Index: linux-2.6.21.7/drivers/mtd/chips/cfi_cmdset_0002.c
===================================================================
--- linux-2.6.21.7.orig/drivers/mtd/chips/cfi_cmdset_0002.c
+++ linux-2.6.21.7/drivers/mtd/chips/cfi_cmdset_0002.c
@@ -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 @@ struct mtd_info *cfi_cmdset_0002(struct 
 
 		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 */