add initial support for the crisarchitecture used on foxboards to openwrt

[openwrt/svn-archive/archive.git] / target / linux / etrax-2.6 / patches / generic_2.6 / 007-samsung_flash.patch

diff --git a/target/linux/etrax-2.6/patches/generic_2.6/007-samsung_flash.patch b/target/linux/etrax-2.6/patches/generic_2.6/007-samsung_flash.patch
new file mode 100644 (file)
index 0000000..e48fe04
--- /dev/null
+++ b/target/linux/etrax-2.6/patches/generic_2.6/007-samsung_flash.patch
@@ -0,0 +1,37 @@
+diff -urN linux-2.6.19.old/drivers/mtd/chips/cfi_cmdset_0002.c linux-2.6.19.dev/drivers/mtd/chips/cfi_cmdset_0002.c
+--- linux-2.6.19.old/drivers/mtd/chips/cfi_cmdset_0002.c       2006-11-29 22:57:37.000000000 +0100
++++ linux-2.6.19.dev/drivers/mtd/chips/cfi_cmdset_0002.c       2006-12-14 03:13:30.000000000 +0100
+@@ -50,6 +50,7 @@
+ #define SST49LF004B           0x0060
+ #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 *);
+@@ -293,12 +294,19 @@
+ 
+               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 */