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 <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
  45 static struct physmap_flash_data lschl_nor_flash_data = {
  46         .width = 1,
  47 };
  48
  49 static 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
  55 static 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
  69 static 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
  77 static 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
  90 static 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
 109 static struct gpio_led_platform_data lschl_led_data = {
 110         .leds = lschl_led_pins,
 111         .num_leds = ARRAY_SIZE(lschl_led_pins),
 112 };
 113
 114 static 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  ****************************************************************************/
 125 static 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
 141 static 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
 163 static 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
 185 static struct gpio_keys_platform_data lschl_button_data = {
 186         .buttons = lschl_buttons,
 187         .nbuttons = ARRAY_SIZE(lschl_buttons),
 188 };
 189
 190 static 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
 209 static struct gpio_fan_alarm lschl_alarm = {
 210         .gpio = LSCHL_GPIO_FAN_LOCK,
 211 };
 212
 213 static 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
 229 static int lschl_gpio_list[] = {
 230         LSCHL_GPIO_FAN_HIGH, LSCHL_GPIO_FAN_LOW,
 231 };
 232
 233 static 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
 241 static 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
 254 static unsigned int lschl_mpp_modes[] __initdata = {
 255         MPP0_GPIO, /* LED POWER */
 256         MPP1_GPIO, /* HDD POWER */
 257         MPP2_GPIO, /* LED ALARM */
 258         MPP3_GPIO, /* LED INFO */
 259         MPP4_UNUSED,
 260         MPP5_UNUSED,
 261         MPP6_GPIO, /* FAN LOCK */
 262         MPP7_GPIO, /* SW INIT */
 263         MPP8_GPIO, /* SW POWER */
 264         MPP9_GPIO, /* USB POWER */
 265         MPP10_GPIO, /* SW AUTO POWER */
 266         MPP11_UNUSED,
 267         MPP12_UNUSED,
 268         MPP13_UNUSED,
 269         MPP14_GPIO, /* FAN HIGH */
 270         MPP15_GPIO, /* SW FUNC */
 271         MPP16_GPIO, /* FAN LOW */
 272         MPP17_GPIO, /* LED FUNC */
 273         MPP18_UNUSED,
 274         MPP19_UNUSED,
 275         0,
 276 };
 277
 278 static 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
 319 MACHINE_START(LINKSTATION_LSCHL, "Buffalo Linkstation LiveV3 (LS-CHL)")
 320         /* Maintainer: Ash Hughes <ashley.hughes@blueyonder.co.uk> */
 321         .atag_offset    = 0x100,
 322         .init_machine   = lschl_init,
 323         .map_io         = orion5x_map_io,
 324         .init_early     = orion5x_init_early,
 325         .init_irq       = orion5x_init_irq,
 326         .timer          = &orion5x_timer,
 327         .fixup          = tag_fixup_mem32,
 328 MACHINE_END