From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S933183AbaHEKMn (ORCPT ); Tue, 5 Aug 2014 06:12:43 -0400 Received: from arroyo.ext.ti.com ([192.94.94.40]:51606 "EHLO arroyo.ext.ti.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S933145AbaHEKMl (ORCPT ); Tue, 5 Aug 2014 06:12:41 -0400 From: Roger Quadros To: , CC: , , , , , , , , , Roger Quadros Subject: [PATCH 0/3] [PATCH 0/3] mtd: nand: omap: Use Software ECC by default Date: Tue, 5 Aug 2014 13:11:19 +0300 Message-ID: <1407233482-11642-1-git-send-email-rogerq@ti.com> X-Mailer: git-send-email 1.8.3.2 MIME-Version: 1.0 Content-Type: text/plain Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hi, In Linux v3.12 and earlier some boards [1] used Software based ECC as the NAND ECC scheme. In 3.13 commit c66d039197e4 changed that to Hardware ECC using ROM code ECC layout. This will cause NAND filesystems created in 3.12 and earlier to be unreadable in v3.13 and later till they are erased and re-created. This series fixes this issue by using Software ECC as the default ECC scheme for the affected boards. Tested on omap3beagle. [1] - Affected boards -omap3beagle -omap3touchbook -overo -am3517crane -devkit8000 -ldp -3430sdp cheers, -roger --- Roger Quadros (3): mtd: nand: omap: Revert to using software ECC by default ARM: OMAP2+: GPMC: Support Software ECC scheme via DT ARM: dts: omap3430-sdp: Revert to using software ECC for NAND Documentation/devicetree/bindings/mtd/gpmc-nand.txt | 2 +- arch/arm/boot/dts/omap3430-sdp.dts | 2 +- arch/arm/mach-omap2/board-flash.c | 2 +- arch/arm/mach-omap2/gpmc-nand.c | 3 ++- arch/arm/mach-omap2/gpmc.c | 7 +++++-- drivers/mtd/nand/omap2.c | 14 +++++++++++--- include/linux/platform_data/mtd-nand-omap2.h | 13 +++++++++++-- 7 files changed, 32 insertions(+), 11 deletions(-) -- 1.8.3.2