mtd: cfi_cmdset_0002: add support for Samsung K8D3x16UxC NOR chips

Linux-MTD Mailing List linux-mtd at lists.infradead.org
Thu Jan 6 10:59:04 EST 2011


Gitweb:     http://git.infradead.org/?p=mtd-2.6.git;a=commit;h=e8953b7395089b917f30d0909f845664d5fafa4e
Commit:     e8953b7395089b917f30d0909f845664d5fafa4e
Parent:     e637276370cb11068ab185c342eac5a78e5415b4
Author:     Guillaume LECERF <glecerf at gmail.com>
AuthorDate: Fri Dec 17 10:59:47 2010 +0100
Committer:  David Woodhouse <David.Woodhouse at intel.com>
CommitDate: Thu Jan 6 15:28:53 2011 +0000

    mtd: cfi_cmdset_0002: add support for Samsung K8D3x16UxC NOR chips
    
    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>
    Acked-by: Wolfram Sang <w.sang at pengutronix.de>
    Signed-off-by: David Woodhouse <David.Woodhouse at intel.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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