From: klightspeed@killerwolves.net Date: Wed, 10 Sep 2014 08:55:41 +0000 (+1000) Subject: ARM: mvebu: Netgear RN102: Use Hardware BCH ECC X-Git-Tag: v3.18-rc1~122^2~13^2 X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=ace8578182dc347b043c0825b9873f62fdaa5b77;p=karo-tx-linux.git ARM: mvebu: Netgear RN102: Use Hardware BCH ECC The bootloader on the Netgear ReadyNAS RN102 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. Fixes: 92beaccd8b49 ("ARM: mvebu: Enable NAND controller in ReadyNAS 102 .dts file") Cc: #v3.14+ Signed-off-by: Ben Peddell Acked-by: Ezequiel Garcia Tested-by: Arnaud Ebalard Link: https://lkml.kernel.org/r/1410339341-3372-1-git-send-email-klightspeed@killerwolves.net Signed-off-by: Jason Cooper --- diff --git a/arch/arm/boot/dts/armada-370-netgear-rn102.dts b/arch/arm/boot/dts/armada-370-netgear-rn102.dts index d6d572e5af32..285524fb915e 100644 --- a/arch/arm/boot/dts/armada-370-netgear-rn102.dts +++ b/arch/arm/boot/dts/armada-370-netgear-rn102.dts @@ -143,6 +143,10 @@ 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 */