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-rw-r--r--drivers/mtd/chips/jedec_probe.c12
1 files changed, 11 insertions, 1 deletions
diff --git a/drivers/mtd/chips/jedec_probe.c b/drivers/mtd/chips/jedec_probe.c
index 30325a25ab9..c2ef821b7af 100644
--- a/drivers/mtd/chips/jedec_probe.c
+++ b/drivers/mtd/chips/jedec_probe.c
@@ -1,7 +1,7 @@
/*
Common Flash Interface probe code.
(C) 2000 Red Hat. GPL'd.
- $Id: jedec_probe.c,v 1.61 2004/11/19 20:52:16 thayne Exp $
+ $Id: jedec_probe.c,v 1.62 2005/02/14 16:27:34 bjd Exp $
See JEDEC (http://www.jedec.org/) standard JESD21C (section 3.5)
for the standard this probe goes back to.
@@ -1856,6 +1856,16 @@ static inline int jedec_match( __u32 base,
case CFI_DEVICETYPE_X8:
mfr = (__u8)finfo->mfr_id;
id = (__u8)finfo->dev_id;
+
+ /* bjd: it seems that if we do this, we can end up
+ * detecting 16bit flashes as an 8bit device, even though
+ * there aren't.
+ */
+ if (finfo->dev_id > 0xff) {
+ DEBUG( MTD_DEBUG_LEVEL3, "%s(): ID is not 8bit\n",
+ __func__);
+ goto match_done;
+ }
break;
case CFI_DEVICETYPE_X16:
mfr = (__u16)finfo->mfr_id;