[MTD] CHIPS: Recognize Spansion CFI 1.4 chips

Modify Amd/Fujitsu CFI NOR flash primary vendor extension table revision
check to recognize version 1.4.  Verified the existing driver can
handle version 1.4 chips without additional info from 1.4 extended table.

Move the primary vendor extension table revision check from common file
to the 3 CFI chip driver files, since the data structures and revisions
handled by those data structures are specific to the chip driver.

Modify the error message printed when the revision is unknown to be a
KERN_ERR instead of WARNING since this will cause mtd to ignore the chip.

Signed-off-by: Todd Poynor <tpoynor@mvista.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>

1 files changed, 10 insertions, 1 deletions

diff --git a/drivers/mtd/chips/cfi_cmdset_0001.c b/drivers/mtd/chips/cfi_cmdset_0001.c
index 0cfcd88468e..1e99dffcc6a 100644
--- a/drivers/mtd/chips/cfi_cmdset_0001.c
+++ b/drivers/mtd/chips/cfi_cmdset_0001.c
@@ -4,7 +4,7 @@
  *
  * (C) 2000 Red Hat. GPL'd
  *
- * $Id: cfi_cmdset_0001.c,v 1.178 2005/05/19 17:05:43 nico Exp $
+ * $Id: cfi_cmdset_0001.c,v 1.180 2005/07/20 21:01:13 tpoynor Exp $
  *
  * 
  * 10/10/2000   Nicolas Pitre <nico@cam.org>
@@ -252,6 +252,15 @@ read_pri_intelext(struct map_info *map, __u16 adr)
         if (!extp)
                 return NULL;
 
+        if (extp->MajorVersion != '1' ||
+            (extp->MinorVersion < '0' || extp->MinorVersion > '3')) {
+                printk(KERN_ERR "  Unknown Intel/Sharp Extended Query "
+                       "version %c.%c.\n",  extp->MajorVersion,
+                       extp->MinorVersion);
+                kfree(extp);
+                return NULL;
+        }
+
         /* Do some byteswapping if necessary */
         extp->FeatureSupport = le32_to_cpu(extp->FeatureSupport);
         extp->BlkStatusRegMask = le16_to_cpu(extp->BlkStatusRegMask);