mvebu: Add support for WRT3200ACM with new NAND flash

Newer Linksys boards might come with a Winbond W29N02GV which can be
configured in different ways. Make sure we configure it the same way as
the older chips so everything keeps working.

Signed-off-by: Imre Kaloz <kaloz@openwrt.org>

target/linux/mvebu/files-4.4/arch/arm/boot/dts/armada-385-linksys-rango.dts

@@ -186,6 +186,8 @@
 			flash@d0000 {
 				status = "okay";
 				num-cs = <1>;
+				nand-ecc-strength = <4>;
+				nand-ecc-step-size = <512>;
 				marvell,nand-keep-config;
 				marvell,nand-enable-arbiter;
 				nand-on-flash-bbt;

target/linux/mvebu/files-4.9/arch/arm/boot/dts/armada-385-linksys-rango.dts

@@ -186,6 +186,8 @@
 			flash@d0000 {
 				status = "okay";
 				num-cs = <1>;
+				nand-ecc-strength = <4>;
+				nand-ecc-step-size = <512>;
 				marvell,nand-keep-config;
 				marvell,nand-enable-arbiter;
 				nand-on-flash-bbt;

target/linux/mvebu/patches-4.14/005-linksys_hardcode_nand_ecc_settings.patch

@@ -0,0 +1,17 @@
+Newer Linksys boards might come with a Winbond W29N02GV which can be
+configured in different ways. Make sure we configure it the same way
+as the older chips so everything keeps working.
+
+Signed-off-by: Imre Kaloz <kaloz@openwrt.org>
+
+--- a/arch/arm/boot/dts/armada-385-linksys.dtsi
++++ b/arch/arm/boot/dts/armada-385-linksys.dtsi
+@@ -185,6 +185,8 @@
+ 	/* 128MiB or 256MiB */
+ 	status = "okay";
+ 	num-cs = <1>;
++	nand-ecc-strength = <4>;
++	nand-ecc-step-size = <512>;
+ 	marvell,nand-keep-config;
+ 	marvell,nand-enable-arbiter;
+ 	nand-on-flash-bbt;

target/linux/mvebu/patches-4.14/220-disable-untested-dsa-boards.patch

@@ -1,6 +1,6 @@
 --- a/arch/arm/boot/dts/armada-385-linksys.dtsi
 +++ b/arch/arm/boot/dts/armada-385-linksys.dtsi
-@@ -194,6 +194,7 @@
+@@ -196,6 +196,7 @@
  	status = "okay";
  
  	switch@0 {

target/linux/mvebu/patches-4.14/423-ARM-dts-armada-385-linksys-Disable-internal-RTC.patch

@@ -17,7 +17,7 @@ Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
 
 --- a/arch/arm/boot/dts/armada-385-linksys.dtsi
 +++ b/arch/arm/boot/dts/armada-385-linksys.dtsi
-@@ -302,3 +302,8 @@
+@@ -304,3 +304,8 @@
  	status = "okay";
  	usb-phy = <&usb3_1_phy>;
  };