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Commit e6372763 authored by Guillaume LECERF's avatar Guillaume LECERF Committed by David Woodhouse
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mtd: cfi_cmdset_0002: add support for Samsung K8D6x16UxM NOR chips 

These chips report CFI v0.0 [1], so extend cfi_fixup_major_minor()
to patch all Samsung chips from 0.0 to 1.0.
Discussed and tested by the OpenWRT people [2].

[1] http://www.samsung.com/global/system/business/semiconductor/product/2007/6/11/NORFlash/64Mbit/K8D6316UTM/ds_K8D6x16UxM_rev16.pdf
[2] https://dev.openwrt.org/ticket/7348



Signed-off-by: default avatarGuillaume LECERF <glecerf@gmail.com>
Acked-by: default avatarWolfram Sang <w.sang@pengutronix.de>
Signed-off-by: default avatarDavid Woodhouse <David.Woodhouse@intel.com>
parent eaca491f

drivers/mtd/chips/cfi_cmdset_0002.c

+13 −3
Original line number Diff line number Diff line
@@ -392,9 +392,19 @@ static struct cfi_fixup fixup_table[] = { 
static void cfi_fixup_major_minor(struct cfi_private *cfi,

				  struct cfi_pri_amdstd *extp)

{

	if (cfi->mfr == CFI_MFR_SAMSUNG && cfi->id == 0x257e &&

	    extp->MajorVersion == '0')

	if (cfi->mfr == CFI_MFR_SAMSUNG) {

		if (extp->MajorVersion == '0' && extp->MinorVersion == '0') {

			/*

			 * Samsung K8P2815UQB and K8D6x16UxM chips

			 * report major=0 / minor=0.

			 */

			printk(KERN_NOTICE "  Fixing Samsung's Amd/Fujitsu"

			       " Extended Query version to 1.%c\n",

			       extp->MinorVersion);

			extp->MajorVersion = '1';

		}

	}



	/*

	 * SST 38VF640x chips report major=0xFF / minor=0xFF.

	 */