[ARM] Kirkwood: support for Seagate DockStar

This patch adds support for the Seagate FreeAgent DockStar,
a Marvell SheevaPlug variant.

Signed-off-by: Eric Cooper <ecc@cmu.edu>
Signed-off-by: Nicolas Pitre <nico@fluxnic.net>

4 files changed, 120 insertions, 0 deletions

diff --git a/arch/arm/configs/kirkwood_defconfig b/arch/arm/configs/kirkwood_defconfig
index ccc9c9959b82..2f7042813765 100644
--- a/arch/arm/configs/kirkwood_defconfig
+++ b/arch/arm/configs/kirkwood_defconfig
@@ -15,6 +15,7 @@ CONFIG_MACH_MV88F6281GTW_GE=y
 CONFIG_MACH_SHEEVAPLUG=y
 CONFIG_MACH_ESATA_SHEEVAPLUG=y
 CONFIG_MACH_GURUPLUG=y
+CONFIG_MACH_DOCKSTAR=y
 CONFIG_MACH_TS219=y
 CONFIG_MACH_TS41X=y
 CONFIG_MACH_OPENRD_BASE=y
diff --git a/arch/arm/mach-kirkwood/Kconfig b/arch/arm/mach-kirkwood/Kconfig
index cc25501b57fa..3d5d66e7aaa0 100644
--- a/arch/arm/mach-kirkwood/Kconfig
+++ b/arch/arm/mach-kirkwood/Kconfig
@@ -58,6 +58,12 @@ config MACH_TS41X
           QNAP TS-410, TS-410U, TS-419P and TS-419U Turbo NAS
           devices.
 
+config MACH_DOCKSTAR
+        bool "Seagate FreeAgent DockStar"
+        help
+          Say 'Y' here if you want your kernel to support the
+          Seagate FreeAgent DockStar.
+
 config MACH_OPENRD
         bool
 
diff --git a/arch/arm/mach-kirkwood/Makefile b/arch/arm/mach-kirkwood/Makefile
index 295d7baa6ae1..9e43e953226e 100644
--- a/arch/arm/mach-kirkwood/Makefile
+++ b/arch/arm/mach-kirkwood/Makefile
@@ -7,6 +7,7 @@ obj-$(CONFIG_MACH_MV88F6281GTW_GE)	+= mv88f6281gtw_ge-setup.o
 obj-$(CONFIG_MACH_SHEEVAPLUG)           += sheevaplug-setup.o
 obj-$(CONFIG_MACH_ESATA_SHEEVAPLUG)     += sheevaplug-setup.o
 obj-$(CONFIG_MACH_GURUPLUG)             += guruplug-setup.o
+obj-$(CONFIG_MACH_DOCKSTAR)             += dockstar-setup.o
 obj-$(CONFIG_MACH_TS219)                += ts219-setup.o tsx1x-common.o
 obj-$(CONFIG_MACH_TS41X)                += ts41x-setup.o tsx1x-common.o
 obj-$(CONFIG_MACH_OPENRD)               += openrd-setup.o
diff --git a/arch/arm/mach-kirkwood/dockstar-setup.c b/arch/arm/mach-kirkwood/dockstar-setup.c
new file mode 100644
index 000000000000..a90475d5059c
--- /dev/null
+++ b/arch/arm/mach-kirkwood/dockstar-setup.c
@@ -0,0 +1,112 @@
+/*
+ * arch/arm/mach-kirkwood/dockstar-setup.c
+ *
+ * Seagate FreeAgent DockStar Setup
+ *
+ * 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/ata_platform.h>
+#include <linux/mtd/partitions.h>
+#include <linux/mv643xx_eth.h>
+#include <linux/gpio.h>
+#include <linux/leds.h>
+#include <asm/mach-types.h>
+#include <asm/mach/arch.h>
+#include <mach/kirkwood.h>
+#include <plat/mvsdio.h>
+#include "common.h"
+#include "mpp.h"
+
+static struct mtd_partition dockstar_nand_parts[] = {
+        {
+                .name = "u-boot",
+                .offset = 0,
+                .size = SZ_1M
+        }, {
+                .name = "uImage",
+                .offset = MTDPART_OFS_NXTBLK,
+                .size = SZ_4M
+        }, {
+                .name = "root",
+                .offset = MTDPART_OFS_NXTBLK,
+                .size = MTDPART_SIZ_FULL
+        },
+};
+
+static struct mv643xx_eth_platform_data dockstar_ge00_data = {
+        .phy_addr       = MV643XX_ETH_PHY_ADDR(0),
+};
+
+static struct gpio_led dockstar_led_pins[] = {
+        {
+                .name                   = "dockstar:green:health",
+                .default_trigger        = "default-on",
+                .gpio                   = 46,
+                .active_low             = 1,
+        },
+        {
+                .name                   = "dockstar:orange:misc",
+                .default_trigger        = "none",
+                .gpio                   = 47,
+                .active_low             = 1,
+        },
+};
+
+static struct gpio_led_platform_data dockstar_led_data = {
+        .leds           = dockstar_led_pins,
+        .num_leds       = ARRAY_SIZE(dockstar_led_pins),
+};
+
+static struct platform_device dockstar_leds = {
+        .name   = "leds-gpio",
+        .id     = -1,
+        .dev    = {
+                .platform_data  = &dockstar_led_data,
+        }
+};
+
+static unsigned int dockstar_mpp_config[] __initdata = {
+        MPP29_GPIO,     /* USB Power Enable */
+        MPP46_GPIO,     /* LED green */
+        MPP47_GPIO,     /* LED orange */
+        0
+};
+
+static void __init dockstar_init(void)
+{
+        /*
+         * Basic setup. Needs to be called early.
+         */
+        kirkwood_init();
+
+        /* setup gpio pin select */
+        kirkwood_mpp_conf(dockstar_mpp_config);
+
+        kirkwood_uart0_init();
+        kirkwood_nand_init(ARRAY_AND_SIZE(dockstar_nand_parts), 25);
+
+        if (gpio_request(29, "USB Power Enable") != 0 ||
+            gpio_direction_output(29, 1) != 0)
+                printk(KERN_ERR "can't set up GPIO 29 (USB Power Enable)\n");
+        kirkwood_ehci_init();
+
+        kirkwood_ge00_init(&dockstar_ge00_data);
+
+        platform_device_register(&dockstar_leds);
+}
+
+MACHINE_START(DOCKSTAR, "Seagate FreeAgent DockStar")
+        .phys_io        = KIRKWOOD_REGS_PHYS_BASE,
+        .io_pg_offst    = ((KIRKWOOD_REGS_VIRT_BASE) >> 18) & 0xfffc,
+        .boot_params    = 0x00000100,
+        .init_machine   = dockstar_init,
+        .map_io         = kirkwood_map_io,
+        .init_irq       = kirkwood_init_irq,
+        .timer          = &kirkwood_timer,
+MACHINE_END