From mboxrd@z Thu Jan 1 00:00:00 1970 From: klightspeed-aslSrjg9ejhWX4hkXwHRhw@public.gmane.org Subject: [PATCH reword] ARM: MVEBU: Netgear RN102: Use Hardware BCH ECC Date: Wed, 10 Sep 2014 18:55:41 +1000 Message-ID: <1410339341-3372-1-git-send-email-klightspeed@killerwolves.net> Return-path: Sender: devicetree-owner-u79uwXL29TY76Z2rM5mHXA@public.gmane.org To: Jason Cooper , Ezequiel Garcia , Brian Norris , Russell King Cc: Ben Peddell , linux-arm-kernel-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r@public.gmane.org, Arnaud Ebalard , linux-mtd-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r@public.gmane.org, Thomas Petazzoni , Gregory Clement , devicetree-u79uwXL29TY76Z2rM5mHXA@public.gmane.org List-Id: devicetree@vger.kernel.org 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") Signed-off-by: Ben Peddell Acked-by: Ezequiel Garcia Tested-by: Arnaud Ebalard --- arch/arm/boot/dts/armada-370-netgear-rn102.dts | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/arch/arm/boot/dts/armada-370-netgear-rn102.dts b/arch/arm/boot/dts/armada-370-netgear-rn102.dts index d6d572e..285524f 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 */ -- 1.8.5.5 -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo-u79uwXL29TY76Z2rM5mHXA@public.gmane.org More majordomo info at http://vger.kernel.org/majordomo-info.html From mboxrd@z Thu Jan 1 00:00:00 1970 From: klightspeed@killerwolves.net To: Jason Cooper , Ezequiel Garcia , Brian Norris , Russell King Subject: [PATCH reword] ARM: MVEBU: Netgear RN102: Use Hardware BCH ECC Date: Wed, 10 Sep 2014 18:55:41 +1000 Message-Id: <1410339341-3372-1-git-send-email-klightspeed@killerwolves.net> Cc: Thomas Petazzoni , devicetree@vger.kernel.org, Ben Peddell , Arnaud Ebalard , linux-mtd@lists.infradead.org, Gregory Clement , linux-arm-kernel@lists.infradead.org List-Id: Linux MTD discussion mailing list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , 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") Signed-off-by: Ben Peddell Acked-by: Ezequiel Garcia Tested-by: Arnaud Ebalard --- arch/arm/boot/dts/armada-370-netgear-rn102.dts | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/arch/arm/boot/dts/armada-370-netgear-rn102.dts b/arch/arm/boot/dts/armada-370-netgear-rn102.dts index d6d572e..285524f 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 */ -- 1.8.5.5 From mboxrd@z Thu Jan 1 00:00:00 1970 From: klightspeed@killerwolves.net (klightspeed at killerwolves.net) Date: Wed, 10 Sep 2014 18:55:41 +1000 Subject: [PATCH reword] ARM: MVEBU: Netgear RN102: Use Hardware BCH ECC Message-ID: <1410339341-3372-1-git-send-email-klightspeed@killerwolves.net> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org 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") Signed-off-by: Ben Peddell Acked-by: Ezequiel Garcia Tested-by: Arnaud Ebalard --- arch/arm/boot/dts/armada-370-netgear-rn102.dts | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/arch/arm/boot/dts/armada-370-netgear-rn102.dts b/arch/arm/boot/dts/armada-370-netgear-rn102.dts index d6d572e..285524f 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 at 0 { label = "u-boot"; reg = <0x0000000 0x180000>; /* 1.5MB */ -- 1.8.5.5