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authorTodd Poynor <tpoynor@mvista.com>2005-07-20 22:01:17 +0100
committerThomas Gleixner <tglx@mtd.linutronix.de>2005-08-04 12:49:25 +0200
commitd88f977b85d251f548add3d0a76fc186f99b1b21 (patch)
tree4c8aecff90397868914a286af6328b08cc911e54 /drivers/mtd/chips/cfi_cmdset_0001.c
parentd95a1b4818f2fe38a3cfc9a7d5817dc9a1a69329 (diff)
downloadop-kernel-dev-d88f977b85d251f548add3d0a76fc186f99b1b21.zip
op-kernel-dev-d88f977b85d251f548add3d0a76fc186f99b1b21.tar.gz
[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>
Diffstat (limited to 'drivers/mtd/chips/cfi_cmdset_0001.c')
-rw-r--r--drivers/mtd/chips/cfi_cmdset_0001.c11
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 0cfcd88..1e99dff 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);
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