[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>

4 files changed, 268 insertions, 0 deletions

diff --git a/arch/arm/configs/orion5x_defconfig b/arch/arm/configs/orion5x_defconfig
index 1415cf56022b..06760f26eace 100644
--- a/arch/arm/configs/orion5x_defconfig
+++ b/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
diff --git a/arch/arm/mach-orion5x/Kconfig b/arch/arm/mach-orion5x/Kconfig
index c0ecf22ae819..f59a8d0e0824 100644
--- a/arch/arm/mach-orion5x/Kconfig
+++ b/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
diff --git a/arch/arm/mach-orion5x/Makefile b/arch/arm/mach-orion5x/Makefile
index 30681ed4c751..3d4a1bc12355 100644
--- a/arch/arm/mach-orion5x/Makefile
+++ b/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
diff --git a/arch/arm/mach-orion5x/lsmini-setup.c b/arch/arm/mach-orion5x/lsmini-setup.c
new file mode 100644
index 000000000000..4311dafd7e26
--- /dev/null
+++ b/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