ARM: Kirkwood: Iomega ix2-200 DT support

Add support for the Iomega ix2-200.
Led's and buttons working as of kernel 3.6-rc2

the 3 lines in the network interface do seem to be required as
removing either causes the network card to not be able to reach
the network (at least on my device).

Product page:
http://go.iomega.com/en/products/network-storage-desktop/storcenter-network-storage-solution/network-hard-drive-ix2-200-cloud/?partner=4735#tech_specsItem_tab

Signed-off-by: Alan M Butler <alanbutty12@gmail.com>
Acked-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: Jason Cooper <jason@lakedaemon.net>

arch/arm/boot/dts/kirkwood-iomega_ix2_200.dts

@@ -0,0 +1,105 @@
+/dts-v1/;
+
+/include/ "kirkwood.dtsi"
+
+/ {
+	model = "Iomega StorCenter ix2-200";
+	compatible = "iom,ix2-200", "marvell,kirkwood-88f6281", "marvell,kirkwood";
+
+	memory {
+		device_type = "memory";
+		reg = <0x00000000 0x10000000>;
+	};
+
+	chosen {
+		bootargs = "console=ttyS0,115200n8 earlyprintk";
+	};
+
+	ocp@f1000000 {
+		i2c@11000 {
+			status = "okay";
+
+			lm63: lm63@4c {
+				compatible = "national,lm63";
+				reg = <0x4c>;
+			};
+		};
+
+		serial@12000 {
+			clock-frequency = <200000000>;
+			status = "ok";
+		};
+
+		nand@3000000 {
+			status = "okay";
+
+			partition@0 {
+				label = "u-boot";
+				reg = <0x0000000 0x100000>;
+				read-only;
+			};
+
+			partition@a0000 {
+				label = "env";
+				reg = <0xa0000 0x20000>;
+				read-only;
+			};
+
+			partition@100000 {
+				label = "uImage";
+				reg = <0x100000 0x300000>;
+			};
+
+			partition@400000 {
+				label = "uInitrd";
+				reg = <0x540000 0x1000000>;
+			};
+		};
+		sata@80000 {
+			status = "okay";
+			nr-ports = <2>;
+		};
+
+	};
+	gpio-leds {
+		compatible = "gpio-leds";
+
+		power_led {
+			label = "status:white:power_led";
+			gpios = <&gpio0 16 0>;
+			linux,default-trigger = "default-on";
+		};
+		health_led1 {
+			label = "status:red:health_led";
+			gpios = <&gpio1 5 0>;
+		};
+		health_led2 {
+			label = "status:white:health_led";
+			gpios = <&gpio1 4 0>;
+		};
+		backup_led {
+			label = "status:blue:backup_led";
+			gpios = <&gpio0 15 0>;
+		};
+	};
+	gpio-keys {
+		compatible = "gpio-keys";
+		#address-cells = <1>;
+		#size-cells = <0>;
+		Power {
+			label = "Power Button";
+			linux,code = <116>;
+			gpios = <&gpio0 14 1>;
+		};
+		Reset {
+			label = "Reset Button";
+			linux,code = <0x198>;
+			gpios = <&gpio0 12 1>;
+		};
+		OTB {
+			label = "OTB Button";
+			linux,code = <133>;
+			gpios = <&gpio1 3 1>;
+		};
+	};
+};

arch/arm/mach-kirkwood/Kconfig

@@ -109,6 +109,13 @@ config MACH_LSXL_DT
 	  Buffalo Linkstation LS-XHL & LS-CHLv2 devices, using
 	  Flattened Device Tree.
 
+config MACH_IOMEGA_IX2_200_DT
+	bool "Iomega StorCenter ix2-200 (Flattened Device Tree)"
+	select ARCH_KIRKWOOD_DT
+	help
+	  Say 'Y' here if you want your kernel to support the
+	  Iomega StorCenter ix2-200 (Flattened Device Tree).
+
 config MACH_TS219
 	bool "QNAP TS-110, TS-119, TS-119P+, TS-210, TS-219, TS-219P and TS-219P+ Turbo NAS"
 	help

arch/arm/mach-kirkwood/Makefile

@@ -28,3 +28,4 @@ obj-$(CONFIG_MACH_IB62X0_DT)		+= board-ib62x0.o
 obj-$(CONFIG_MACH_TS219_DT)		+= board-ts219.o tsx1x-common.o
 obj-$(CONFIG_MACH_GOFLEXNET_DT)		+= board-goflexnet.o
 obj-$(CONFIG_MACH_LSXL_DT)		+= board-lsxl.o
+obj-$(CONFIG_MACH_IOMEGA_IX2_200_DT)	+= board-iomega_ix2_200.o

arch/arm/mach-kirkwood/Makefile.boot

@@ -12,3 +12,4 @@ dtb-$(CONFIG_MACH_TS219_DT)	+= kirkwood-ts219-6282.dtb
 dtb-$(CONFIG_MACH_GOFLEXNET_DT) += kirkwood-goflexnet.dtb
 dtb-$(CONFIG_MACH_LSXL_DT) += kirkwood-lschlv2.dtb
 dtb-$(CONFIG_MACH_LSXL_DT) += kirkwood-lsxhl.dtb
+dtb-$(CONFIG_MACH_IOMEGA_IX2_200_DT) += kirkwood-iomega_ix2_200.dtb

arch/arm/mach-kirkwood/board-dt.c

@@ -87,6 +87,9 @@ static void __init kirkwood_dt_init(void)
 	if (of_machine_is_compatible("buffalo,lsxl"))
 		lsxl_init();
 
+	if (of_machine_is_compatible("iom,ix2-200"))
+		iomega_ix2_200_init();
+
 	of_platform_populate(NULL, kirkwood_dt_match_table,
 			     kirkwood_auxdata_lookup, NULL);
 }
@@ -100,6 +103,7 @@ static const char *kirkwood_dt_board_compat[] = {
 	"qnap,ts219",
 	"seagate,goflexnet",
 	"buffalo,lsxl",
+	"iom,ix2-200",
 	NULL
 };
 

arch/arm/mach-kirkwood/board-iomega_ix2_200.c

@@ -0,0 +1,57 @@
+/*
+ * arch/arm/mach-kirkwood/board-iomega_ix2_200.c
+ *
+ * Iomega StorCenter ix2-200
+ *
+ * This file is licensed under the terms of the GNU General Public
+ * License version 2.  This program is licensed "as is" without any
+ * warranty of any kind, whether express or implied.
+ */
+
+#include <linux/kernel.h>
+#include <linux/init.h>
+#include <linux/platform_device.h>
+#include <linux/mv643xx_eth.h>
+#include <linux/ethtool.h>
+#include <mach/kirkwood.h>
+#include "common.h"
+#include "mpp.h"
+
+static struct mv643xx_eth_platform_data iomega_ix2_200_ge00_data = {
+	.phy_addr       = MV643XX_ETH_PHY_NONE,
+	.speed          = SPEED_1000,
+	.duplex         = DUPLEX_FULL,
+};
+
+static unsigned int iomega_ix2_200_mpp_config[] __initdata = {
+	MPP12_GPIO,			/* Reset Button */
+	MPP14_GPIO,			/* Power Button */
+	MPP15_GPIO,			/* Backup LED (blue) */
+	MPP16_GPIO,			/* Power LED (white) */
+	MPP35_GPIO,			/* OTB Button */
+	MPP36_GPIO,			/* Rebuild LED (white) */
+	MPP37_GPIO,			/* Health LED (red) */
+	MPP38_GPIO,			/* SATA LED brightness control 1 */
+	MPP39_GPIO,			/* SATA LED brightness control 2 */
+	MPP40_GPIO,			/* Backup LED brightness control 1 */
+	MPP41_GPIO,			/* Backup LED brightness control 2 */
+	MPP42_GPIO,			/* Power LED brightness control 1 */
+	MPP43_GPIO,			/* Power LED brightness control 2 */
+	MPP44_GPIO,			/* Health LED brightness control 1 */
+	MPP45_GPIO,			/* Health LED brightness control 2 */
+	MPP46_GPIO,			/* Rebuild LED brightness control 1 */
+	MPP47_GPIO,			/* Rebuild LED brightness control 2 */
+	0
+};
+
+void __init iomega_ix2_200_init(void)
+{
+	/*
+	 * Basic setup. Needs to be called early.
+	 */
+	kirkwood_mpp_conf(iomega_ix2_200_mpp_config);
+
+	kirkwood_ehci_init();
+
+	kirkwood_ge01_init(&iomega_ix2_200_ge00_data);
+}

arch/arm/mach-kirkwood/common.h

@@ -94,6 +94,12 @@ void lsxl_init(void);
 static inline void lsxl_init(void) {};
 #endif
 
+#ifdef CONFIG_MACH_IOMEGA_IX2_200_DT
+void iomega_ix2_200_init(void);
+#else
+static inline void iomega_ix2_200_init(void) {};
+#endif
+
 /* early init functions not converted to fdt yet */
 char *kirkwood_id(void);
 void kirkwood_l2_init(void);