kernel/arch/arm/mach-orion5x/ls-chl-setup.c

   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 <mach/orion5x.h>
  26 #include "common.h"
  27 #include "mpp.h"
  28
  29 /*****************************************************************************
  30  * Linkstation LS-CHL Info
  31  ****************************************************************************/
  32
  33 /*
  34  * 256K NOR flash Device bus boot chip select
  35  */
  36
  37 #define LSCHL_NOR_BOOT_BASE     0xf4000000
  38 #define LSCHL_NOR_BOOT_SIZE     SZ_256K
  39
  40 /*****************************************************************************
  41  * 256KB NOR Flash on BOOT Device
  42  ****************************************************************************/
  43
  44 static struct physmap_flash_data lschl_nor_flash_data = {
  45         .width = 1,
  46 };
  47
  48 static struct resource lschl_nor_flash_resource = {
  49         .flags  = IORESOURCE_MEM,
  50         .start  = LSCHL_NOR_BOOT_BASE,
  51         .end    = LSCHL_NOR_BOOT_BASE + LSCHL_NOR_BOOT_SIZE - 1,
  52 };
  53
  54 static struct platform_device lschl_nor_flash = {
  55         .name = "physmap-flash",
  56         .id = 0,
  57         .dev = {
  58                 .platform_data  = &lschl_nor_flash_data,
  59         },
  60         .num_resources = 1,
  61         .resource = &lschl_nor_flash_resource,
  62 };
  63
  64 /*****************************************************************************
  65  * Ethernet
  66  ****************************************************************************/
  67
  68 static struct mv643xx_eth_platform_data lschl_eth_data = {
  69         .phy_addr = MV643XX_ETH_PHY_ADDR(8),
  70 };
  71
  72 /*****************************************************************************
  73  * RTC 5C372a on I2C bus
  74  ****************************************************************************/
  75
  76 static struct i2c_board_info __initdata lschl_i2c_rtc = {
  77         I2C_BOARD_INFO("rs5c372a", 0x32),
  78 };
  79
  80 /*****************************************************************************
  81  * LEDs attached to GPIO
  82  ****************************************************************************/
  83
  84 #define LSCHL_GPIO_LED_ALARM    2
  85 #define LSCHL_GPIO_LED_INFO     3
  86 #define LSCHL_GPIO_LED_FUNC     17
  87 #define LSCHL_GPIO_LED_PWR      0
  88
  89 static struct gpio_led lschl_led_pins[] = {
  90         {
  91                 .name = "alarm:red",
  92                 .gpio = LSCHL_GPIO_LED_ALARM,
  93                 .active_low = 1,
  94         }, {
  95                 .name = "info:amber",
  96                 .gpio = LSCHL_GPIO_LED_INFO,
  97                 .active_low = 1,
  98         }, {
  99                 .name = "func:blue:top",
 100                 .gpio = LSCHL_GPIO_LED_FUNC,
 101                 .active_low = 1,
 102         }, {
 103                 .name = "power:blue:bottom",
 104                 .gpio = LSCHL_GPIO_LED_PWR,
 105         },
 106 };
 107
 108 static struct gpio_led_platform_data lschl_led_data = {
 109         .leds = lschl_led_pins,
 110         .num_leds = ARRAY_SIZE(lschl_led_pins),
 111 };
 112
 113 static struct platform_device lschl_leds = {
 114         .name = "leds-gpio",
 115         .id = -1,
 116         .dev = {
 117                 .platform_data = &lschl_led_data,
 118         },
 119 };
 120
 121 /*****************************************************************************
 122  * SATA
 123  ****************************************************************************/
 124 static struct mv_sata_platform_data lschl_sata_data = {
 125         .n_ports = 2,
 126 };
 127
 128 /*****************************************************************************
 129  * LS-CHL specific power off method: reboot
 130  ****************************************************************************/
 131 /*
 132  * On the LS-CHL, the shutdown process is following:
 133  * - Userland monitors key events until the power switch goes to off position
 134  * - The board reboots
 135  * - U-boot starts and goes into an idle mode waiting for the user
 136  *   to move the switch to ON position
 137  *
 138  */
 139
 140 static void lschl_power_off(void)
 141 {
 142         orion5x_restart(REBOOT_HARD, NULL);
 143 }
 144
 145 /*****************************************************************************
 146  * General Setup
 147  ****************************************************************************/
 148 #define LSCHL_GPIO_USB_POWER    9
 149 #define LSCHL_GPIO_AUTO_POWER   17
 150 #define LSCHL_GPIO_POWER        18
 151
 152 /****************************************************************************
 153  * GPIO Attached Keys
 154  ****************************************************************************/
 155 #define LSCHL_GPIO_KEY_FUNC             15
 156 #define LSCHL_GPIO_KEY_POWER            8
 157 #define LSCHL_GPIO_KEY_AUTOPOWER        10
 158 #define LSCHL_SW_POWER          0x00
 159 #define LSCHL_SW_AUTOPOWER      0x01
 160 #define LSCHL_SW_FUNC           0x02
 161
 162 static struct gpio_keys_button lschl_buttons[] = {
 163         {
 164                 .type = EV_SW,
 165                 .code = LSCHL_SW_POWER,
 166                 .gpio = LSCHL_GPIO_KEY_POWER,
 167                 .desc = "Power-on Switch",
 168                 .active_low = 1,
 169         }, {
 170                 .type = EV_SW,
 171                 .code = LSCHL_SW_AUTOPOWER,
 172                 .gpio = LSCHL_GPIO_KEY_AUTOPOWER,
 173                 .desc = "Power-auto Switch",
 174                 .active_low = 1,
 175         }, {
 176                 .type = EV_SW,
 177                 .code = LSCHL_SW_FUNC,
 178                 .gpio = LSCHL_GPIO_KEY_FUNC,
 179                 .desc = "Function Switch",
 180                 .active_low = 1,
 181         },
 182 };
 183
 184 static struct gpio_keys_platform_data lschl_button_data = {
 185         .buttons = lschl_buttons,
 186         .nbuttons = ARRAY_SIZE(lschl_buttons),
 187 };
 188
 189 static struct platform_device lschl_button_device = {
 190         .name = "gpio-keys",
 191         .id = -1,
 192         .num_resources = 0,
 193         .dev = {
 194                 .platform_data = &lschl_button_data,
 195         },
 196 };
 197
 198 #define LSCHL_GPIO_HDD_POWER    1
 199
 200 /****************************************************************************
 201  * GPIO Fan
 202  ****************************************************************************/
 203
 204 #define LSCHL_GPIO_FAN_LOW      16
 205 #define LSCHL_GPIO_FAN_HIGH     14
 206 #define LSCHL_GPIO_FAN_LOCK     6
 207
 208 static struct gpio_fan_alarm lschl_alarm = {
 209         .gpio = LSCHL_GPIO_FAN_LOCK,
 210 };
 211
 212 static struct gpio_fan_speed lschl_speeds[] = {
 213         {
 214                 .rpm = 0,
 215                 .ctrl_val = 3,
 216         }, {
 217                 .rpm = 1500,
 218                 .ctrl_val = 2,
 219         }, {
 220                 .rpm = 3250,
 221                 .ctrl_val = 1,
 222         }, {
 223                 .rpm = 5000,
 224                 .ctrl_val = 0,
 225         },
 226 };
 227
 228 static int lschl_gpio_list[] = {
 229         LSCHL_GPIO_FAN_HIGH, LSCHL_GPIO_FAN_LOW,
 230 };
 231
 232 static struct gpio_fan_platform_data lschl_fan_data = {
 233         .num_ctrl = ARRAY_SIZE(lschl_gpio_list),
 234         .ctrl = lschl_gpio_list,
 235         .alarm = &lschl_alarm,
 236         .num_speed = ARRAY_SIZE(lschl_speeds),
 237         .speed = lschl_speeds,
 238 };
 239
 240 static struct platform_device lschl_fan_device = {
 241         .name = "gpio-fan",
 242         .id = -1,
 243         .num_resources = 0,
 244         .dev = {
 245                 .platform_data = &lschl_fan_data,
 246         },
 247 };
 248
 249 /****************************************************************************
 250  * GPIO Data
 251  ****************************************************************************/
 252
 253 static unsigned int lschl_mpp_modes[] __initdata = {
 254         MPP0_GPIO, /* LED POWER */
 255         MPP1_GPIO, /* HDD POWER */
 256         MPP2_GPIO, /* LED ALARM */
 257         MPP3_GPIO, /* LED INFO */
 258         MPP4_UNUSED,
 259         MPP5_UNUSED,
 260         MPP6_GPIO, /* FAN LOCK */
 261         MPP7_GPIO, /* SW INIT */
 262         MPP8_GPIO, /* SW POWER */
 263         MPP9_GPIO, /* USB POWER */
 264         MPP10_GPIO, /* SW AUTO POWER */
 265         MPP11_UNUSED,
 266         MPP12_UNUSED,
 267         MPP13_UNUSED,
 268         MPP14_GPIO, /* FAN HIGH */
 269         MPP15_GPIO, /* SW FUNC */
 270         MPP16_GPIO, /* FAN LOW */
 271         MPP17_GPIO, /* LED FUNC */
 272         MPP18_UNUSED,
 273         MPP19_UNUSED,
 274         0,
 275 };
 276
 277 static void __init lschl_init(void)
 278 {
 279         /*
 280          * Setup basic Orion functions. Needs to be called early.
 281          */
 282         orion5x_init();
 283
 284         orion5x_mpp_conf(lschl_mpp_modes);
 285
 286         /*
 287          * Configure peripherals.
 288          */
 289         orion5x_ehci0_init();
 290         orion5x_ehci1_init();
 291         orion5x_eth_init(&lschl_eth_data);
 292         orion5x_i2c_init();
 293         orion5x_sata_init(&lschl_sata_data);
 294         orion5x_uart0_init();
 295         orion5x_xor_init();
 296
 297         mvebu_mbus_add_window_by_id(ORION_MBUS_DEVBUS_BOOT_TARGET,
 298                                     ORION_MBUS_DEVBUS_BOOT_ATTR,
 299                                     LSCHL_NOR_BOOT_BASE,
 300                                     LSCHL_NOR_BOOT_SIZE);
 301         platform_device_register(&lschl_nor_flash);
 302
 303         platform_device_register(&lschl_leds);
 304
 305         platform_device_register(&lschl_button_device);
 306
 307         platform_device_register(&lschl_fan_device);
 308
 309         i2c_register_board_info(0, &lschl_i2c_rtc, 1);
 310
 311         /* usb power on */
 312         gpio_set_value(LSCHL_GPIO_USB_POWER, 1);
 313
 314         /* register power-off method */
 315         pm_power_off = lschl_power_off;
 316
 317         pr_info("%s: finished\n", __func__);
 318 }
 319
 320 MACHINE_START(LINKSTATION_LSCHL, "Buffalo Linkstation LiveV3 (LS-CHL)")
 321         /* Maintainer: Ash Hughes <ashley.hughes@blueyonder.co.uk> */
 322         .atag_offset    = 0x100,
 323         .init_machine   = lschl_init,
 324         .map_io         = orion5x_map_io,
 325         .init_early     = orion5x_init_early,
 326         .init_irq       = orion5x_init_irq,
 327         .init_time      = orion5x_timer_init,
 328         .fixup          = tag_fixup_mem32,
 329         .restart        = orion5x_restart,
 330 MACHINE_END