linux/arch/arm/mach-orion5x/ls-chl-setup.c
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   1/*
   2 * arch/arm/mach-orion5x/ls-chl-setup.c
   3 *
   4 * Maintainer: Ash Hughes <ashley.hughes@blueyonder.co.uk>
   5 *
   6 * This file is licensed under the terms of the GNU General Public
   7 * License version 2.  This program is licensed "as is" without any
   8 * warranty of any kind, whether express or implied.
   9 */
  10
  11#include <linux/kernel.h>
  12#include <linux/init.h>
  13#include <linux/platform_device.h>
  14#include <linux/mtd/physmap.h>
  15#include <linux/mv643xx_eth.h>
  16#include <linux/leds.h>
  17#include <linux/gpio_keys.h>
  18#include <linux/gpio-fan.h>
  19#include <linux/input.h>
  20#include <linux/i2c.h>
  21#include <linux/ata_platform.h>
  22#include <linux/gpio.h>
  23#include <asm/mach-types.h>
  24#include <asm/mach/arch.h>
  25#include <asm/system.h>
  26#include <mach/orion5x.h>
  27#include "common.h"
  28#include "mpp.h"
  29
  30/*****************************************************************************
  31 * Linkstation LS-CHL Info
  32 ****************************************************************************/
  33
  34/*
  35 * 256K NOR flash Device bus boot chip select
  36 */
  37
  38#define LSCHL_NOR_BOOT_BASE     0xf4000000
  39#define LSCHL_NOR_BOOT_SIZE     SZ_256K
  40
  41/*****************************************************************************
  42 * 256KB NOR Flash on BOOT Device
  43 ****************************************************************************/
  44
  45static struct physmap_flash_data lschl_nor_flash_data = {
  46        .width = 1,
  47};
  48
  49static struct resource lschl_nor_flash_resource = {
  50        .flags  = IORESOURCE_MEM,
  51        .start  = LSCHL_NOR_BOOT_BASE,
  52        .end    = LSCHL_NOR_BOOT_BASE + LSCHL_NOR_BOOT_SIZE - 1,
  53};
  54
  55static struct platform_device lschl_nor_flash = {
  56        .name = "physmap-flash",
  57        .id = 0,
  58        .dev = {
  59                .platform_data  = &lschl_nor_flash_data,
  60        },
  61        .num_resources = 1,
  62        .resource = &lschl_nor_flash_resource,
  63};
  64
  65/*****************************************************************************
  66 * Ethernet
  67 ****************************************************************************/
  68
  69static struct mv643xx_eth_platform_data lschl_eth_data = {
  70        .phy_addr = MV643XX_ETH_PHY_ADDR(8),
  71};
  72
  73/*****************************************************************************
  74 * RTC 5C372a on I2C bus
  75 ****************************************************************************/
  76
  77static struct i2c_board_info __initdata lschl_i2c_rtc = {
  78        I2C_BOARD_INFO("rs5c372a", 0x32),
  79};
  80
  81/*****************************************************************************
  82 * LEDs attached to GPIO
  83 ****************************************************************************/
  84
  85#define LSCHL_GPIO_LED_ALARM    2
  86#define LSCHL_GPIO_LED_INFO     3
  87#define LSCHL_GPIO_LED_FUNC     17
  88#define LSCHL_GPIO_LED_PWR      0
  89
  90static struct gpio_led lschl_led_pins[] = {
  91        {
  92                .name = "alarm:red",
  93                .gpio = LSCHL_GPIO_LED_ALARM,
  94                .active_low = 1,
  95        }, {
  96                .name = "info:amber",
  97                .gpio = LSCHL_GPIO_LED_INFO,
  98                .active_low = 1,
  99        }, {
 100                .name = "func:blue:top",
 101                .gpio = LSCHL_GPIO_LED_FUNC,
 102                .active_low = 1,
 103        }, {
 104                .name = "power:blue:bottom",
 105                .gpio = LSCHL_GPIO_LED_PWR,
 106        },
 107};
 108
 109static struct gpio_led_platform_data lschl_led_data = {
 110        .leds = lschl_led_pins,
 111        .num_leds = ARRAY_SIZE(lschl_led_pins),
 112};
 113
 114static struct platform_device lschl_leds = {
 115        .name = "leds-gpio",
 116        .id = -1,
 117        .dev = {
 118                .platform_data = &lschl_led_data,
 119        },
 120};
 121
 122/*****************************************************************************
 123 * SATA
 124 ****************************************************************************/
 125static struct mv_sata_platform_data lschl_sata_data = {
 126        .n_ports = 2,
 127};
 128
 129/*****************************************************************************
 130 * LS-CHL specific power off method: reboot
 131 ****************************************************************************/
 132/*
 133 * On the LS-CHL, the shutdown process is following:
 134 * - Userland monitors key events until the power switch goes to off position
 135 * - The board reboots
 136 * - U-boot starts and goes into an idle mode waiting for the user
 137 *   to move the switch to ON position
 138 *
 139 */
 140
 141static void lschl_power_off(void)
 142{
 143        arm_machine_restart('h', NULL);
 144}
 145
 146/*****************************************************************************
 147 * General Setup
 148 ****************************************************************************/
 149#define LSCHL_GPIO_USB_POWER    9
 150#define LSCHL_GPIO_AUTO_POWER   17
 151#define LSCHL_GPIO_POWER        18
 152
 153/****************************************************************************
 154 * GPIO Attached Keys
 155 ****************************************************************************/
 156#define LSCHL_GPIO_KEY_FUNC             15
 157#define LSCHL_GPIO_KEY_POWER            8
 158#define LSCHL_GPIO_KEY_AUTOPOWER        10
 159#define LSCHL_SW_POWER          0x00
 160#define LSCHL_SW_AUTOPOWER      0x01
 161#define LSCHL_SW_FUNC           0x02
 162
 163static struct gpio_keys_button lschl_buttons[] = {
 164        {
 165                .type = EV_SW,
 166                .code = LSCHL_SW_POWER,
 167                .gpio = LSCHL_GPIO_KEY_POWER,
 168                .desc = "Power-on Switch",
 169                .active_low = 1,
 170        }, {
 171                .type = EV_SW,
 172                .code = LSCHL_SW_AUTOPOWER,
 173                .gpio = LSCHL_GPIO_KEY_AUTOPOWER,
 174                .desc = "Power-auto Switch",
 175                .active_low = 1,
 176        }, {
 177                .type = EV_SW,
 178                .code = LSCHL_SW_FUNC,
 179                .gpio = LSCHL_GPIO_KEY_FUNC,
 180                .desc = "Function Switch",
 181                .active_low = 1,
 182        },
 183};
 184
 185static struct gpio_keys_platform_data lschl_button_data = {
 186        .buttons = lschl_buttons,
 187        .nbuttons = ARRAY_SIZE(lschl_buttons),
 188};
 189
 190static struct platform_device lschl_button_device = {
 191        .name = "gpio-keys",
 192        .id = -1,
 193        .num_resources = 0,
 194        .dev = {
 195                .platform_data = &lschl_button_data,
 196        },
 197};
 198
 199#define LSCHL_GPIO_HDD_POWER    1
 200
 201/****************************************************************************
 202 * GPIO Fan
 203 ****************************************************************************/
 204
 205#define LSCHL_GPIO_FAN_LOW      16
 206#define LSCHL_GPIO_FAN_HIGH     14
 207#define LSCHL_GPIO_FAN_LOCK     6
 208
 209static struct gpio_fan_alarm lschl_alarm = {
 210        .gpio = LSCHL_GPIO_FAN_LOCK,
 211};
 212
 213static struct gpio_fan_speed lschl_speeds[] = {
 214        {
 215                .rpm = 0,
 216                .ctrl_val = 3,
 217        }, {
 218                .rpm = 1500,
 219                .ctrl_val = 2,
 220        }, {
 221                .rpm = 3250,
 222                .ctrl_val = 1,
 223        }, {
 224                .rpm = 5000,
 225                .ctrl_val = 0,
 226        },
 227};
 228
 229static int lschl_gpio_list[] = {
 230        LSCHL_GPIO_FAN_HIGH, LSCHL_GPIO_FAN_LOW,
 231};
 232
 233static struct gpio_fan_platform_data lschl_fan_data = {
 234        .num_ctrl = ARRAY_SIZE(lschl_gpio_list),
 235        .ctrl = lschl_gpio_list,
 236        .alarm = &lschl_alarm,
 237        .num_speed = ARRAY_SIZE(lschl_speeds),
 238        .speed = lschl_speeds,
 239};
 240
 241static struct platform_device lschl_fan_device = {
 242        .name = "gpio-fan",
 243        .id = -1,
 244        .num_resources = 0,
 245        .dev = {
 246                .platform_data = &lschl_fan_data,
 247        },
 248};
 249
 250/****************************************************************************
 251 * GPIO Data
 252 ****************************************************************************/
 253
 254static struct orion5x_mpp_mode lschl_mpp_modes[] __initdata = {
 255        {  0, MPP_GPIO }, /* LED POWER */
 256        {  1, MPP_GPIO }, /* HDD POWER */
 257        {  2, MPP_GPIO }, /* LED ALARM */
 258        {  3, MPP_GPIO }, /* LED INFO */
 259        {  4, MPP_UNUSED },
 260        {  5, MPP_UNUSED },
 261        {  6, MPP_GPIO }, /* FAN LOCK */
 262        {  7, MPP_GPIO }, /* SW INIT */
 263        {  8, MPP_GPIO }, /* SW POWER */
 264        {  9, MPP_GPIO }, /* USB POWER */
 265        { 10, MPP_GPIO }, /* SW AUTO POWER */
 266        { 11, MPP_UNUSED },
 267        { 12, MPP_UNUSED },
 268        { 13, MPP_UNUSED },
 269        { 14, MPP_GPIO }, /* FAN HIGH */
 270        { 15, MPP_GPIO }, /* SW FUNC */
 271        { 16, MPP_GPIO }, /* FAN LOW */
 272        { 17, MPP_GPIO }, /* LED FUNC */
 273        { 18, MPP_UNUSED },
 274        { 19, MPP_UNUSED },
 275        { -1 },
 276};
 277
 278static void __init lschl_init(void)
 279{
 280        /*
 281         * Setup basic Orion functions. Needs to be called early.
 282         */
 283        orion5x_init();
 284
 285        orion5x_mpp_conf(lschl_mpp_modes);
 286
 287        /*
 288         * Configure peripherals.
 289         */
 290        orion5x_ehci0_init();
 291        orion5x_ehci1_init();
 292        orion5x_eth_init(&lschl_eth_data);
 293        orion5x_i2c_init();
 294        orion5x_sata_init(&lschl_sata_data);
 295        orion5x_uart0_init();
 296        orion5x_xor_init();
 297
 298        orion5x_setup_dev_boot_win(LSCHL_NOR_BOOT_BASE,
 299                                   LSCHL_NOR_BOOT_SIZE);
 300        platform_device_register(&lschl_nor_flash);
 301
 302        platform_device_register(&lschl_leds);
 303
 304        platform_device_register(&lschl_button_device);
 305
 306        platform_device_register(&lschl_fan_device);
 307
 308        i2c_register_board_info(0, &lschl_i2c_rtc, 1);
 309
 310        /* usb power on */
 311        gpio_set_value(LSCHL_GPIO_USB_POWER, 1);
 312
 313        /* register power-off method */
 314        pm_power_off = lschl_power_off;
 315
 316        pr_info("%s: finished\n", __func__);
 317}
 318
 319MACHINE_START(LINKSTATION_LSCHL, "Buffalo Linkstation LiveV3 (LS-CHL)")
 320        /* Maintainer: Ash Hughes <ashley.hughes@blueyonder.co.uk> */
 321        .boot_params    = 0x00000100,
 322        .init_machine   = lschl_init,
 323        .map_io         = orion5x_map_io,
 324        .init_irq       = orion5x_init_irq,
 325        .timer          = &orion5x_timer,
 326        .fixup          = tag_fixup_mem32,
 327MACHINE_END
 328