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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: 92beaccd8b ("ARM: mvebu: Enable NAND controller in ReadyNAS 102 .dts file")
Cc: <stable@vger.kernel.org> #v3.14+
Signed-off-by: Ben Peddell <klightspeed@killerwolves.net>
Acked-by: Ezequiel Garcia <ezequiel.garcia@free-electrons.com>
Tested-by: Arnaud Ebalard <arno@natisbad.org>
Link: https://lkml.kernel.org/r/1410339341-3372-1-git-send-email-klightspeed@killerwolves.net
Signed-off-by: Jason Cooper <jason@lakedaemon.net>
This commit is contained in:
klightspeed@killerwolves.net 2014-09-10 18:55:41 +10:00 committed by Jason Cooper
parent 4f5e01e96d
commit ace8578182
1 changed files with 4 additions and 0 deletions
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4
arch/arm/boot/dts/armada-370-netgear-rn102.dts
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@ -143,6 +143,10 @@ nand@d0000 {
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 */