[ARM] Orion: Add Buffalo Linkstation Mini support

This patch adds support for Buffalo Linkstation Mini board.

Signed-off-by: Alexey Kopytko <alexey@kopytko.ru>
Signed-off-by: Nicolas Pitre <nico@marvell.com>

arch/arm/configs/orion5x_defconfig

@@ -166,6 +166,7 @@ CONFIG_MACH_KUROBOX_PRO=y
 CONFIG_MACH_DNS323=y
 CONFIG_MACH_TS209=y
 CONFIG_MACH_LINKSTATION_PRO=y
+CONFIG_MACH_LINKSTATION_MINI=y
 CONFIG_MACH_TS409=y
 CONFIG_MACH_WRT350N_V2=y
 CONFIG_MACH_TS78XX=y

arch/arm/mach-orion5x/Kconfig

@@ -50,6 +50,13 @@ config MACH_LINKSTATION_PRO
 	  Buffalo Linkstation Pro/Live platform. Both v1 and
 	  v2 devices are supported.
 
+config MACH_LINKSTATION_MINI
+	bool "Buffalo Linkstation Mini"
+	select I2C_BOARDINFO
+	help
+	  Say 'Y' here if you want your kernel to support the
+	  Buffalo Linkstation Mini platform.
+
 config MACH_TS409
 	bool "QNAP TS-409"
 	help

arch/arm/mach-orion5x/Makefile

@@ -4,6 +4,7 @@ obj-$(CONFIG_MACH_RD88F5182)	+= rd88f5182-setup.o
 obj-$(CONFIG_MACH_KUROBOX_PRO)	+= kurobox_pro-setup.o
 obj-$(CONFIG_MACH_TERASTATION_PRO2)	+= terastation_pro2-setup.o
 obj-$(CONFIG_MACH_LINKSTATION_PRO) += kurobox_pro-setup.o
+obj-$(CONFIG_MACH_LINKSTATION_MINI) += lsmini-setup.o
 obj-$(CONFIG_MACH_DNS323)	+= dns323-setup.o
 obj-$(CONFIG_MACH_TS209)	+= ts209-setup.o tsx09-common.o
 obj-$(CONFIG_MACH_TS409)	+= ts409-setup.o tsx09-common.o

arch/arm/mach-orion5x/lsmini-setup.c

@@ -0,0 +1,259 @@
+/*
+ * arch/arm/mach-orion5x/lsmini-setup.c
+ *
+ * Maintainer: Alexey Kopytko <alexey@kopytko.ru>
+ *
+ * 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/pci.h>
+#include <linux/mtd/physmap.h>
+#include <linux/mv643xx_eth.h>
+#include <linux/leds.h>
+#include <linux/gpio_keys.h>
+#include <linux/input.h>
+#include <linux/i2c.h>
+#include <linux/ata_platform.h>
+#include <asm/mach-types.h>
+#include <linux/gpio.h>
+#include <asm/mach/arch.h>
+#include "common.h"
+#include "mpp.h"
+#include "include/mach/system.h"
+
+/*****************************************************************************
+ * Linkstation Mini Info
+ ****************************************************************************/
+
+/*
+ * 256K NOR flash Device bus boot chip select
+ */
+
+#define LSMINI_NOR_BOOT_BASE	0xf4000000
+#define LSMINI_NOR_BOOT_SIZE	SZ_256K
+
+/*****************************************************************************
+ * 256KB NOR Flash on BOOT Device
+ ****************************************************************************/
+
+static struct physmap_flash_data lsmini_nor_flash_data = {
+	.width		= 1,
+};
+
+static struct resource lsmini_nor_flash_resource = {
+	.flags	= IORESOURCE_MEM,
+	.start	= LSMINI_NOR_BOOT_BASE,
+	.end	= LSMINI_NOR_BOOT_BASE + LSMINI_NOR_BOOT_SIZE - 1,
+};
+
+static struct platform_device lsmini_nor_flash = {
+	.name			= "physmap-flash",
+	.id			= 0,
+	.dev		= {
+		.platform_data	= &lsmini_nor_flash_data,
+	},
+	.num_resources		= 1,
+	.resource		= &lsmini_nor_flash_resource,
+};
+
+/*****************************************************************************
+ * Ethernet
+ ****************************************************************************/
+
+static struct mv643xx_eth_platform_data lsmini_eth_data = {
+	.phy_addr	= 8,
+};
+
+/*****************************************************************************
+ * RTC 5C372a on I2C bus
+ ****************************************************************************/
+
+static struct i2c_board_info __initdata lsmini_i2c_rtc = {
+	I2C_BOARD_INFO("rs5c372a", 0x32),
+};
+
+/*****************************************************************************
+ * LEDs attached to GPIO
+ ****************************************************************************/
+
+#define LSMINI_GPIO_LED_ALARM	2
+#define LSMINI_GPIO_LED_INFO	3
+#define LSMINI_GPIO_LED_FUNC	9
+#define LSMINI_GPIO_LED_PWR	14
+
+static struct gpio_led lsmini_led_pins[] = {
+	{
+		.name	   = "alarm:red",
+		.gpio	   = LSMINI_GPIO_LED_ALARM,
+		.active_low     = 1,
+	}, {
+		.name	   = "info:amber",
+		.gpio	   = LSMINI_GPIO_LED_INFO,
+		.active_low     = 1,
+	}, {
+		.name	   = "func:blue:top",
+		.gpio	   = LSMINI_GPIO_LED_FUNC,
+		.active_low     = 1,
+	}, {
+		.name	   = "power:blue:bottom",
+		.gpio	   = LSMINI_GPIO_LED_PWR,
+	},
+};
+
+static struct gpio_led_platform_data lsmini_led_data = {
+	.leds	   = lsmini_led_pins,
+	.num_leds       = ARRAY_SIZE(lsmini_led_pins),
+};
+
+static struct platform_device lsmini_leds = {
+	.name   = "leds-gpio",
+	.id     = -1,
+	.dev    = {
+		.platform_data  = &lsmini_led_data,
+	},
+};
+
+/****************************************************************************
+ * GPIO Attached Keys
+ ****************************************************************************/
+
+#define LSMINI_GPIO_KEY_FUNC       15
+#define LSMINI_GPIO_KEY_POWER	   18
+#define LSMINI_GPIO_KEY_AUTOPOWER 17
+
+#define LSMINI_SW_POWER		0x00
+#define LSMINI_SW_AUTOPOWER	0x01
+
+static struct gpio_keys_button lsmini_buttons[] = {
+	{
+		.code	   = KEY_OPTION,
+		.gpio	   = LSMINI_GPIO_KEY_FUNC,
+		.desc	   = "Function Button",
+		.active_low     = 1,
+	}, {
+		.type		= EV_SW,
+		.code	   = LSMINI_SW_POWER,
+		.gpio	   = LSMINI_GPIO_KEY_POWER,
+		.desc	   = "Power-on Switch",
+		.active_low     = 1,
+	}, {
+		.type		= EV_SW,
+		.code	   = LSMINI_SW_AUTOPOWER,
+		.gpio	   = LSMINI_GPIO_KEY_AUTOPOWER,
+		.desc	   = "Power-auto Switch",
+		.active_low     = 1,
+	},
+};
+
+static struct gpio_keys_platform_data lsmini_button_data = {
+	.buttons	= lsmini_buttons,
+	.nbuttons       = ARRAY_SIZE(lsmini_buttons),
+};
+
+static struct platform_device lsmini_button_device = {
+	.name	   = "gpio-keys",
+	.id	     = -1,
+	.num_resources  = 0,
+	.dev	    = {
+		.platform_data  = &lsmini_button_data,
+	},
+};
+
+
+/*****************************************************************************
+ * SATA
+ ****************************************************************************/
+static struct mv_sata_platform_data lsmini_sata_data = {
+	.n_ports	= 2,
+};
+
+
+/*****************************************************************************
+ * General Setup
+ ****************************************************************************/
+
+#define LSMINI_GPIO_USB_POWER	16
+#define LSMINI_GPIO_AUTO_POWER	17
+#define LSMINI_GPIO_POWER	18
+
+#define LSMINI_GPIO_HDD_POWER0	1
+#define LSMINI_GPIO_HDD_POWER1	19
+
+static struct orion5x_mpp_mode lsmini_mpp_modes[] __initdata = {
+	{  0, MPP_UNUSED }, /* LED_RESERVE1 (unused) */
+	{  1, MPP_GPIO }, /* HDD_PWR */
+	{  2, MPP_GPIO }, /* LED_ALARM */
+	{  3, MPP_GPIO }, /* LED_INFO */
+	{  4, MPP_UNUSED },
+	{  5, MPP_UNUSED },
+	{  6, MPP_UNUSED },
+	{  7, MPP_UNUSED },
+	{  8, MPP_UNUSED },
+	{  9, MPP_GPIO }, /* LED_FUNC */
+	{ 10, MPP_UNUSED },
+	{ 11, MPP_UNUSED }, /* LED_ETH (dummy) */
+	{ 12, MPP_UNUSED },
+	{ 13, MPP_UNUSED },
+	{ 14, MPP_GPIO }, /* LED_PWR */
+	{ 15, MPP_GPIO }, /* FUNC */
+	{ 16, MPP_GPIO }, /* USB_PWR */
+	{ 17, MPP_GPIO }, /* AUTO_POWER */
+	{ 18, MPP_GPIO }, /* POWER */
+	{ 19, MPP_GPIO }, /* HDD_PWR1 */
+	{ -1 },
+};
+
+static void __init lsmini_init(void)
+{
+	/*
+	 * Setup basic Orion functions. Need to be called early.
+	 */
+	orion5x_init();
+
+	orion5x_mpp_conf(lsmini_mpp_modes);
+
+	/*
+	 * Configure peripherals.
+	 */
+	orion5x_ehci0_init();
+	orion5x_ehci1_init();
+	orion5x_eth_init(&lsmini_eth_data);
+	orion5x_i2c_init();
+	orion5x_sata_init(&lsmini_sata_data);
+	orion5x_uart0_init();
+	orion5x_xor_init();
+
+	orion5x_setup_dev_boot_win(LSMINI_NOR_BOOT_BASE,
+				   LSMINI_NOR_BOOT_SIZE);
+	platform_device_register(&lsmini_nor_flash);
+
+	platform_device_register(&lsmini_button_device);
+
+	platform_device_register(&lsmini_leds);
+
+	i2c_register_board_info(0, &lsmini_i2c_rtc, 1);
+
+	/* enable USB power */
+	gpio_set_value(LSMINI_GPIO_USB_POWER, 1);
+
+	pr_info("%s: finished\n", __func__);
+}
+
+#ifdef CONFIG_MACH_LINKSTATION_MINI
+MACHINE_START(LINKSTATION_MINI, "Buffalo Linkstation Mini")
+	/* Maintainer: Alexey Kopytko <alexey@kopytko.ru> */
+	.phys_io	= ORION5X_REGS_PHYS_BASE,
+	.io_pg_offst	= ((ORION5X_REGS_VIRT_BASE) >> 18) & 0xFFFC,
+	.boot_params	= 0x00000100,
+	.init_machine	= lsmini_init,
+	.map_io		= orion5x_map_io,
+	.init_irq	= orion5x_init_irq,
+	.timer		= &orion5x_timer,
+	.fixup		= tag_fixup_mem32,
+MACHINE_END
+#endif