[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_0020.c b/drivers/mtd/chips/cfi_cmdset_0020.c
index c894f8801578..d22df2d96788 100644
--- a/drivers/mtd/chips/cfi_cmdset_0020.c
+++ b/drivers/mtd/chips/cfi_cmdset_0020.c
@@ -4,7 +4,7 @@
  *
  * (C) 2000 Red Hat. GPL'd
  *
- * $Id: cfi_cmdset_0020.c,v 1.19 2005/07/13 15:52:45 dwmw2 Exp $
+ * $Id: cfi_cmdset_0020.c,v 1.20 2005/07/20 21:01:14 tpoynor Exp $
  * 
  * 10/10/2000   Nicolas Pitre <nico@cam.org>
  *      - completely revamped method functions so they are aware and
@@ -133,6 +133,15 @@ struct mtd_info *cfi_cmdset_0020(struct map_info *map, int primary)
                 if (!extp)
                         return NULL;
 
+                if (extp->MajorVersion != '1' ||
+                    (extp->MinorVersion < '0' || extp->MinorVersion > '3')) {
+                        printk(KERN_ERR "  Unknown ST Microelectronics"
+                               " Extended Query version %c.%c.\n",
+                               extp->MajorVersion, extp->MinorVersion);
+                        kfree(extp);
+                        return NULL;
+                }
+
                 /* Do some byteswapping if necessary */
                 extp->FeatureSupport = cfi32_to_cpu(extp->FeatureSupport);
                 extp->BlkStatusRegMask = cfi32_to_cpu(extp->BlkStatusRegMask);