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>

7 files changed, 181 insertions, 0 deletions

diff --git a/arch/arm/boot/dts/kirkwood-iomega_ix2_200.dts b/arch/arm/boot/dts/kirkwood-iomega_ix2_200.dts
new file mode 100644
index 00000000000..865aeec40a2
--- /dev/null
+++ b/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>;
+                };
+        };
+};
diff --git a/arch/arm/mach-kirkwood/Kconfig b/arch/arm/mach-kirkwood/Kconfig
index ca5c15a4e62..76bc8473f1a 100644
--- a/arch/arm/mach-kirkwood/Kconfig
+++ b/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
diff --git a/arch/arm/mach-kirkwood/Makefile b/arch/arm/mach-kirkwood/Makefile
index 055c85a1cc4..f5484dcca9f 100644
--- a/arch/arm/mach-kirkwood/Makefile
+++ b/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-$(CONFIG_MACH_IOMEGA_IX2_200_DT)    += board-iomega_ix2_200.o
diff --git a/arch/arm/mach-kirkwood/Makefile.boot b/arch/arm/mach-kirkwood/Makefile.boot
index a13299d758e..32fe7263006 100644
--- a/arch/arm/mach-kirkwood/Makefile.boot
+++ b/arch/arm/mach-kirkwood/Makefile.boot
@@ -12,3 +12,4 @@ dtb-$(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
diff --git a/arch/arm/mach-kirkwood/board-dt.c b/arch/arm/mach-kirkwood/board-dt.c
index e4eb450de30..9b3ec175e40 100644
--- a/arch/arm/mach-kirkwood/board-dt.c
+++ b/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
 };
 
diff --git a/arch/arm/mach-kirkwood/board-iomega_ix2_200.c b/arch/arm/mach-kirkwood/board-iomega_ix2_200.c
new file mode 100644
index 00000000000..158fb97d039
--- /dev/null
+++ b/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);
+}
diff --git a/arch/arm/mach-kirkwood/common.h b/arch/arm/mach-kirkwood/common.h
index 304dd1abfdc..d5d406469b7 100644
--- a/arch/arm/mach-kirkwood/common.h
+++ b/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);