ARM: Kirkwood: Initial DTS support for Kirkwood GoFlex Net

This patch supplies the necessary DTS and supporting files to boot up
a Seagate GoFlex Net with 3.5.0-rc3.
Signed-off-by: Joshua Coombs <josh.coombs@gmail.com>
Signed-off-by: Andrew Lunn <andrew@lunn.ch>

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

+/dts-v1/;
+
+/include/ "kirkwood.dtsi"
+
+/ {
+	model = "Seagate GoFlex Net";
+	compatible = "seagate,goflexnet", "mrvl,kirkwood-88f6281", "mrvl,kirkwood";
+
+	memory {
+		device_type = "memory";
+		reg = <0x00000000 0x8000000>;
+	};
+
+	chosen {
+		bootargs = "console=ttyS0,115200n8 earlyprintk root=/dev/sda1 rootdelay=10";
+	};
+
+	ocp@f1000000 {
+		serial@12000 {
+			clock-frequency = <200000000>;
+			status = "ok";
+		};
+
+		nand@3000000 {
+			status = "okay";
+
+			partition@0 {
+				label = "u-boot";
+				reg = <0x0000000 0x100000>;
+				read-only;
+			};
+
+			partition@100000 {
+				label = "uImage";
+				reg = <0x0100000 0x400000>;
+			};
+
+			partition@500000 {
+				label = "pogoplug";
+				reg = <0x0500000 0x2000000>;
+			};
+
+			partition@2500000 {
+				label = "root";
+				reg = <0x02500000 0xd800000>;
+			};
+		};
+	};
+};

arch/arm/mach-kirkwood/Kconfig

@@ -94,6 +94,13 @@ config MACH_TS219_DT
 	  or MV6282. If you have the wrong one, the buttons will not
 	  work.
 
+config MACH_GOFLEXNET_DT
+	bool "Seagate GoFlex Net (Flattened Device Tree)"
+	select ARCH_KIRKWOOD_DT
+	help
+	  Say 'Y' here if you want your kernel to support the
+	  Seagate GoFlex Net (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

@@ -26,3 +26,4 @@ obj-$(CONFIG_MACH_ICONNECT_DT)		+= board-iconnect.o
 obj-$(CONFIG_MACH_DLINK_KIRKWOOD_DT)	+= board-dnskw.o
 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

arch/arm/mach-kirkwood/Makefile.boot

@@ -8,3 +8,4 @@ dtb-$(CONFIG_MACH_DLINK_KIRKWOOD_DT) += kirkwood-dns325.dtb
 dtb-$(CONFIG_MACH_ICONNECT_DT) += kirkwood-iconnect.dtb
 dtb-$(CONFIG_MACH_IB62X0_DT) += kirkwood-ib62x0.dtb
 dtb-$(CONFIG_MACH_TS219_DT)	+= kirkwood-qnap-ts219.dtb
+dtb-$(CONFIG_MACH_GOFLEXNET_DT) += kirkwood-goflexnet.dtb

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

@@ -32,6 +32,7 @@ struct of_dev_auxdata kirkwood_auxdata_lookup[] __initdata = {
 		       NULL),
 	OF_DEV_AUXDATA("marvell,orion-wdt", 0xf1020300, "orion_wdt", NULL),
 	OF_DEV_AUXDATA("marvell,orion-sata", 0xf1080000, "sata_mv.0", NULL),
+	OF_DEV_AUXDATA("mrvl,orion-nand", 0xf4000000, "orion_nand", NULL),
 	{},
 };
 
@@ -80,6 +81,9 @@ static void __init kirkwood_dt_init(void)
 	if (of_machine_is_compatible("qnap,ts219"))
 		qnap_dt_ts219_init();
 
+	if (of_machine_is_compatible("seagate,goflexnet"))
+		goflexnet_init();
+
 	of_platform_populate(NULL, kirkwood_dt_match_table,
 			     kirkwood_auxdata_lookup, NULL);
 }
@@ -91,6 +95,7 @@ static const char *kirkwood_dt_board_compat[] = {
 	"iom,iconnect",
 	"raidsonic,ib-nas62x0",
 	"qnap,ts219",
+	"seagate,goflexnet",
 	NULL
 };
 

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

+/*
+ * Copyright 2012 (C), Jason Cooper <jason@lakedaemon.net>
+ *
+ * arch/arm/mach-kirkwood/board-goflexnet.c
+ *
+ * Seagate GoFlext Net Board Init for drivers not converted to
+ * flattened device tree yet.
+ *
+ * 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.
+ *
+ * Copied and modified for Seagate GoFlex Net support by
+ * Joshua Coombs <josh.coombs@gmail.com> based on ArchLinux ARM's
+ * GoFlex kernel patches.
+ *
+ */
+
+#include <linux/kernel.h>
+#include <linux/init.h>
+#include <linux/platform_device.h>
+#include <linux/ata_platform.h>
+#include <linux/mv643xx_eth.h>
+#include <linux/of.h>
+#include <linux/of_address.h>
+#include <linux/of_fdt.h>
+#include <linux/of_irq.h>
+#include <linux/of_platform.h>
+#include <linux/gpio.h>
+#include <linux/leds.h>
+#include <asm/mach-types.h>
+#include <asm/mach/arch.h>
+#include <asm/mach/map.h>
+#include <mach/kirkwood.h>
+#include <mach/bridge-regs.h>
+#include <plat/mvsdio.h>
+#include "common.h"
+#include "mpp.h"
+
+static struct mv643xx_eth_platform_data goflexnet_ge00_data = {
+	.phy_addr	= MV643XX_ETH_PHY_ADDR(0),
+};
+
+static struct mv_sata_platform_data goflexnet_sata_data = {
+	.n_ports	= 2,
+};
+
+static struct gpio_led goflexnet_led_pins[] = {
+	{
+		.name			= "status:green:health",
+		.default_trigger	= "default-on",
+		.gpio			= 46,
+		.active_low		= 1,
+	},
+	{
+		.name			= "status:orange:fault",
+		.default_trigger	= "none",
+		.gpio			= 47,
+		.active_low		= 1,
+	},
+	{
+		.name			= "status:white:left0",
+		.default_trigger	= "none",
+		.gpio			= 42,
+		.active_low		= 0,
+	},
+	{
+		.name			= "status:white:left1",
+		.default_trigger	= "none",
+		.gpio			= 43,
+		.active_low		= 0,
+	},
+	{
+		.name			= "status:white:left2",
+		.default_trigger	= "none",
+		.gpio			= 44,
+		.active_low		= 0,
+	},
+	{
+		.name			= "status:white:left3",
+		.default_trigger	= "none",
+		.gpio			= 45,
+		.active_low		= 0,
+	},
+	{
+		.name			= "status:white:right0",
+		.default_trigger	= "none",
+		.gpio			= 38,
+		.active_low		= 0,
+	},
+	{
+		.name			= "status:white:right1",
+		.default_trigger	= "none",
+		.gpio			= 39,
+		.active_low		= 0,
+	},
+	{
+		.name			= "status:white:right2",
+		.default_trigger	= "none",
+		.gpio			= 40,
+		.active_low		= 0,
+	},
+	{
+		.name			= "status:white:right3",
+		.default_trigger	= "none",
+		.gpio			= 41,
+		.active_low		= 0,
+	},
+};
+
+static struct gpio_led_platform_data goflexnet_led_data = {
+	.leds		= goflexnet_led_pins,
+	.num_leds	= ARRAY_SIZE(goflexnet_led_pins),
+};
+
+static struct platform_device goflexnet_leds = {
+	.name	= "leds-gpio",
+	.id	= -1,
+	.dev	= {
+		.platform_data	= &goflexnet_led_data,
+	}
+};
+
+static unsigned int goflexnet_mpp_config[] __initdata = {
+	MPP29_GPIO,	/* USB Power Enable */
+	MPP47_GPIO,	/* LED Orange */
+	MPP46_GPIO,	/* LED Green */
+	MPP45_GPIO,	/* LED Left Capacity 3 */
+	MPP44_GPIO,	/* LED Left Capacity 2 */
+	MPP43_GPIO,	/* LED Left Capacity 1 */
+	MPP42_GPIO,	/* LED Left Capacity 0 */
+	MPP41_GPIO,	/* LED Right Capacity 3 */
+	MPP40_GPIO,	/* LED Right Capacity 2 */
+	MPP39_GPIO,	/* LED Right Capacity 1 */
+	MPP38_GPIO,	/* LED Right Capacity 0 */
+	0
+};
+
+void __init goflexnet_init(void)
+{
+	/*
+	 * Basic setup. Needs to be called early.
+	 */
+	kirkwood_mpp_conf(goflexnet_mpp_config);
+
+	if (gpio_request(29, "USB Power Enable") != 0 ||
+	    gpio_direction_output(29, 1) != 0)
+		pr_err("can't setup GPIO 29 (USB Power Enable)\n");
+	kirkwood_ehci_init();
+
+	kirkwood_ge00_init(&goflexnet_ge00_data);
+	kirkwood_sata_init(&goflexnet_sata_data);
+
+	platform_device_register(&goflexnet_leds);
+}

arch/arm/mach-kirkwood/common.h

@@ -82,6 +82,12 @@ void ib62x0_init(void);
 static inline void ib62x0_init(void) {};
 #endif
 
+#ifdef CONFIG_MACH_GOFLEXNET_DT
+void goflexnet_init(void);
+#else
+static inline void goflexnet_init(void) {};
+#endif
+
 /* early init functions not converted to fdt yet */
 char *kirkwood_id(void);
 void kirkwood_l2_init(void);