Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754768AbaJ1DkA (ORCPT ); Mon, 27 Oct 2014 23:40:00 -0400 Received: from mail.linuxfoundation.org ([140.211.169.12]:44689 "EHLO mail.linuxfoundation.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754745AbaJ1Dj5 (ORCPT ); Mon, 27 Oct 2014 23:39:57 -0400 From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Arnaud Ebalard , Jason Cooper Subject: [PATCH 3.17 085/146] ARM: mvebu: Netgear RN2120: Use Hardware BCH ECC Date: Tue, 28 Oct 2014 11:33:47 +0800 Message-Id: <20141028033347.077312046@linuxfoundation.org> X-Mailer: git-send-email 2.1.2 In-Reply-To: <20141028033343.441992423@linuxfoundation.org> References: <20141028033343.441992423@linuxfoundation.org> User-Agent: quilt/0.63-1 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org 3.17-stable review patch. If anyone has any objections, please let me know. ------------------ From: Arnaud Ebalard commit 500abb6ccb9e3f8d638a7f422443a8549245ef90 upstream. The bootloader on the Netgear ReadyNAS RN2120 uses Hardware BCH ECC (strength = 4), while the pxa3xx NAND driver by default uses Hamming ECC (strength = 1). This patch changes the ECC mode on these machines to match that of the bootloader and of the stock firmware. That way, it is now possible to update the kernel from userland (e.g. using standard tools from mtd-utils package); u-boot will happily load and boot it. The issue was initially reported and fixed by Ben Pedell for RN102. The RN2120 shares the same Hynix H27U1G8F2BTR NAND flash and setup. This patch is based on Ben's fix for RN102. Fixes: ad51eddd95ad ("ARM: mvebu: Enable NAND controller in ReadyNAS 2120 .dts file") Signed-off-by: Arnaud Ebalard Link: https://lkml.kernel.org/r/61f6a1b7ad0adc57a0e201b9680bc2e5f214a317.1410035142.git.arno@natisbad.org Signed-off-by: Jason Cooper Signed-off-by: Greg Kroah-Hartman --- arch/arm/boot/dts/armada-xp-netgear-rn2120.dts | 4 ++++ 1 file changed, 4 insertions(+) --- a/arch/arm/boot/dts/armada-xp-netgear-rn2120.dts +++ b/arch/arm/boot/dts/armada-xp-netgear-rn2120.dts @@ -223,6 +223,10 @@ marvell,nand-enable-arbiter; nand-on-flash-bbt; + /* Use Hardware BCH ECC */ + nand-ecc-strength = <4>; + nand-ecc-step-size = <512>; + partition@0 { label = "u-boot"; reg = <0x0000000 0x180000>; /* 1.5MB */ -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/