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lsmini-setup.c

/*
 * 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,
};


/*****************************************************************************
 * Linkstation Mini specific power off method: reboot
 ****************************************************************************/
/*
 * On the Linkstation Mini, the shutdown process is following:
 * - Userland monitors key events until the power switch goes to off position
 * - The board reboots
 * - U-boot starts and goes into an idle mode waiting for the user
 *   to move the switch to ON position
 */

static void lsmini_power_off(void)
{
      arch_reset(0, NULL);
}


/*****************************************************************************
 * 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);

      /* register power-off method */
      pm_power_off = lsmini_power_off;

      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

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