[PATCH v5 2/2] mtd: cfi_cmdset_0002: add support for Samsung K8D3x16UxC NOR chips

Guillaume LECERF glecerf at gmail.com
Fri Dec 17 04:59:47 EST 2010


These chips report CFI v3.3 [1], so patch them on the fly to the more
correct v1.3.
Discussed and tested by the OpenWRT people [2].

[1] http://www.samsung.com/global/system/business/semiconductor/product/2007/6/11/NORFlash/32Mbit/K8D3216UBC/ds_K8D3x16UxC_rev17.pdf
[2] https://dev.openwrt.org/ticket/866

Signed-off-by: Guillaume LECERF <glecerf at gmail.com>
---
 drivers/mtd/chips/cfi_cmdset_0002.c |    4 +++-
 1 files changed, 3 insertions(+), 1 deletions(-)

diff --git a/drivers/mtd/chips/cfi_cmdset_0002.c b/drivers/mtd/chips/cfi_cmdset_0002.c
index 324fee4..a43ab45 100644
--- a/drivers/mtd/chips/cfi_cmdset_0002.c
+++ b/drivers/mtd/chips/cfi_cmdset_0002.c
@@ -393,10 +393,12 @@ static void cfi_fixup_major_minor(struct cfi_private *cfi,
 				  struct cfi_pri_amdstd *extp)
 {
 	if (cfi->mfr == CFI_MFR_SAMSUNG) {
-		if (extp->MajorVersion == '0' && extp->MinorVersion == '0') {
+		if ((extp->MajorVersion == '0' && extp->MinorVersion == '0') ||
+		    (extp->MajorVersion == '3' && extp->MinorVersion == '3')) {
 			/*
 			 * Samsung K8P2815UQB and K8D6x16UxM chips
 			 * report major=0 / minor=0.
+			 * K8D3x16UxC chips report major=3 / minor=3.
 			 */
 			printk(KERN_NOTICE "  Fixing Samsung's Amd/Fujitsu"
 			       " Extended Query version to 1.%c\n",




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