ath79: add initial nand support for gl-ar300m

Signed-off-by: Marty E. Plummer <hanetzer@startmail.com>

target/linux/ath79/Makefile

@@ -4,7 +4,7 @@ ARCH:=mips
 BOARD:=ath79
 BOARDNAME:=Atheros ATH79 (DTS)
 CPU_TYPE:=24kc
-SUBTARGETS:=generic tiny
+SUBTARGETS:=generic nand tiny
 
 FEATURES:=ramdisk source-only
 

target/linux/ath79/dts/qca9533_glinet_ar300m_nand.dts

@@ -0,0 +1,67 @@
+/dts-v1/;
+
+#include "qca9533_glinet_ar300m.dtsi"
+
+&spi {
+	status = "okay";
+	num-cs = <1>;
+
+	flash@0 {
+		#address-cells = <1>;
+		#size-cells = <1>;
+		compatible = "winbond,w25q128", "jedec,spi-nor";
+		reg = <0>;
+		spi-max-frequency = <25000000>;
+
+		partitions {
+			compatible = "fixed-partitions";
+			#address-cells = <1>;
+			#size-cells = <1>;
+
+			partition@0 {
+				label = "u-boot";
+				reg = <0x000000 0x040000>;
+				read-only;
+			};
+
+			partition@1 {
+				label = "u-boot-env";
+				reg = <0x040000 0x010000>;
+			};
+
+			partition@2 {
+				label = "reserved";
+				reg = <0x050000 0xfa0000>;
+			};
+
+			art: partition@3 {
+				label = "art";
+				reg = <0xff0000 0x010000>;
+			};
+		};
+	};
+
+	flash@1 {
+		#address-cells = <1>;
+		#size-cells = <1>;
+		compatible = "spinand,mt29f";
+		reg = <1>;
+		spi-max-frequency = <25000000>;
+
+		partitions {
+			compatible = "fixed-partitions";
+			#address-cells = <1>;
+			#size-cells = <1>;
+
+			partition@0 {
+				label = "kernel";
+				reg = <0x000000 0x0200000>;
+			};
+
+			partition@1 {
+				label = "ubi";
+				reg = <0x200000 0x7e00000>;
+			};
+		};
+	};
+};

target/linux/ath79/image/Makefile

@@ -71,6 +71,9 @@ include ./generic.mk
 include ./generic-tp-link.mk
 include ./generic-ubnt.mk
 endif
+ifeq ($(SUBTARGET),nand)
+include ./nand.mk
+endif
 ifeq ($(SUBTARGET),tiny)
 include ./tiny-tp-link.mk
 endif

target/linux/ath79/image/nand.mk

@@ -0,0 +1,13 @@
+define Device/glinet_ar300m_nand
+  ATH_SOC := qca9533
+  DEVICE_TITLE := GL-AR300M (NAND)
+  DEVICE_PACKAGES := kmod-usb-core kmod-usb2 kmod-usb-storage kmod-usb-ledtrig-usbport
+  KERNEL_SIZE := 2048k
+  BLOCKSIZE := 128k
+  PAGESIZE := 2048
+  VID_HDR_OFFSET := 512
+  IMAGES := factory.ubi sysupgrade.tar
+  IMAGE/sysupgrade.tar := sysupgrade-tar
+  IMAGE/factory.ubi := append-kernel | pad-to $$$$(KERNEL_SIZE) | append-ubi
+endef
+TARGET_DEVICES += glinet_ar300m_nand

target/linux/ath79/nand/config-default

@@ -0,0 +1,14 @@
+CONFIG_BCH=y
+CONFIG_MTD_NAND=y
+CONFIG_MTD_NAND_BCH=y
+CONFIG_MTD_NAND_ECC=y
+CONFIG_MTD_NAND_ECC_BCH=y
+CONFIG_MTD_SPINAND_MT29F=y
+CONFIG_MTD_SPINAND_ONDIEECC=y
+CONFIG_MTD_UBI=y
+CONFIG_MTD_UBI_BEB_LIMIT=20
+# CONFIG_MTD_UBI_BLOCK is not set
+# CONFIG_MTD_UBI_FASTMAP is not set
+# CONFIG_MTD_UBI_GLUEBI is not set
+CONFIG_MTD_UBI_WL_THRESHOLD=4096
+# CONFIG_UBIFS_FS is not set

target/linux/ath79/nand/profiles/00-default.mk

@@ -0,0 +1,18 @@
+#
+# Copyright (C) 2009 OpenWrt.org
+#
+# This is free software, licensed under the GNU General Public License v2.
+# See /LICENSE for more information.
+#
+
+define Profile/Default
+	NAME:=Default Profile
+	PACKAGES:= \
+		kmod-usb-core kmod-usb-ohci kmod-usb2 kmod-usb-ledtrig-usbport
+	PRIORITY := 1
+endef
+
+define Profile/Default/Description
+	Default package set compatible with most boards.
+endef
+$(eval $(call Profile,Default))

target/linux/ath79/nand/target.mk

@@ -0,0 +1,7 @@
+BOARDNAME := Generic devices with NAND flash
+FEATURES += squashfs nand rtc
+
+define Target/Description
+	Build firmware for Atheros AR71xx/AR913x based boards with
+	NAND flash, e.g. Netgear WNDR4300.
+endef