root/arch/arm/mach-orion5x/ls_hgl-setup.c

DEFINITIONS

1. ls_hgl_power_off
2. ls_hgl_init

   1 /*
   2  * arch/arm/mach-orion5x/ls_hgl-setup.c
   3  *
   4  * Maintainer: Zhu Qingsen <zhuqs@cn.fujitsu.com>
   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/input.h>
  19 #include <linux/i2c.h>
  20 #include <linux/ata_platform.h>
  21 #include <linux/gpio.h>
  22 #include <asm/mach-types.h>
  23 #include <asm/mach/arch.h>
  24 #include "common.h"
  25 #include "mpp.h"
  26 #include "orion5x.h"
  27 
  28 /*****************************************************************************
  29  * Linkstation LS-HGL Info
  30  ****************************************************************************/
  31 
  32 /*
  33  * 256K NOR flash Device bus boot chip select
  34  */
  35 
  36 #define LS_HGL_NOR_BOOT_BASE    0xf4000000
  37 #define LS_HGL_NOR_BOOT_SIZE    SZ_256K
  38 
  39 /*****************************************************************************
  40  * 256KB NOR Flash on BOOT Device
  41  ****************************************************************************/
  42 
  43 static struct physmap_flash_data ls_hgl_nor_flash_data = {
  44         .width          = 1,
  45 };
  46 
  47 static struct resource ls_hgl_nor_flash_resource = {
  48         .flags  = IORESOURCE_MEM,
  49         .start  = LS_HGL_NOR_BOOT_BASE,
  50         .end    = LS_HGL_NOR_BOOT_BASE + LS_HGL_NOR_BOOT_SIZE - 1,
  51 };
  52 
  53 static struct platform_device ls_hgl_nor_flash = {
  54         .name                   = "physmap-flash",
  55         .id                     = 0,
  56         .dev            = {
  57                 .platform_data  = &ls_hgl_nor_flash_data,
  58         },
  59         .num_resources          = 1,
  60         .resource               = &ls_hgl_nor_flash_resource,
  61 };
  62 
  63 /*****************************************************************************
  64  * Ethernet
  65  ****************************************************************************/
  66 
  67 static struct mv643xx_eth_platform_data ls_hgl_eth_data = {
  68         .phy_addr       = 8,
  69 };
  70 
  71 /*****************************************************************************
  72  * RTC 5C372a on I2C bus
  73  ****************************************************************************/
  74 
  75 static struct i2c_board_info __initdata ls_hgl_i2c_rtc = {
  76         I2C_BOARD_INFO("rs5c372a", 0x32),
  77 };
  78 
  79 /*****************************************************************************
  80  * LEDs attached to GPIO
  81  ****************************************************************************/
  82 
  83 #define LS_HGL_GPIO_LED_ALARM   2
  84 #define LS_HGL_GPIO_LED_INFO    3
  85 #define LS_HGL_GPIO_LED_FUNC    17
  86 #define LS_HGL_GPIO_LED_PWR     0
  87 
  88 
  89 static struct gpio_led ls_hgl_led_pins[] = {
  90         {
  91                 .name      = "alarm:red",
  92                 .gpio      = LS_HGL_GPIO_LED_ALARM,
  93                 .active_low     = 1,
  94         }, {
  95                 .name      = "info:amber",
  96                 .gpio      = LS_HGL_GPIO_LED_INFO,
  97                 .active_low     = 1,
  98         }, {
  99                 .name      = "func:blue:top",
 100                 .gpio      = LS_HGL_GPIO_LED_FUNC,
 101                 .active_low     = 1,
 102         }, {
 103                 .name      = "power:blue:bottom",
 104                 .gpio      = LS_HGL_GPIO_LED_PWR,
 105         },
 106 };
 107 
 108 static struct gpio_led_platform_data ls_hgl_led_data = {
 109         .leds      = ls_hgl_led_pins,
 110         .num_leds       = ARRAY_SIZE(ls_hgl_led_pins),
 111 };
 112 
 113 static struct platform_device ls_hgl_leds = {
 114         .name   = "leds-gpio",
 115         .id     = -1,
 116         .dev    = {
 117                 .platform_data  = &ls_hgl_led_data,
 118         },
 119 };
 120 
 121 /****************************************************************************
 122  * GPIO Attached Keys
 123  ****************************************************************************/
 124 #define LS_HGL_GPIO_KEY_FUNC       15
 125 #define LS_HGL_GPIO_KEY_POWER      8
 126 #define LS_HGL_GPIO_KEY_AUTOPOWER  10
 127 
 128 #define LS_HGL_SW_POWER     0x00
 129 #define LS_HGL_SW_AUTOPOWER 0x01
 130 
 131 static struct gpio_keys_button ls_hgl_buttons[] = {
 132         {
 133                 .code      = KEY_OPTION,
 134                 .gpio      = LS_HGL_GPIO_KEY_FUNC,
 135                 .desc      = "Function Button",
 136                 .active_low     = 1,
 137         }, {
 138                 .type           = EV_SW,
 139                 .code      = LS_HGL_SW_POWER,
 140                 .gpio      = LS_HGL_GPIO_KEY_POWER,
 141                 .desc      = "Power-on Switch",
 142                 .active_low     = 1,
 143         }, {
 144                 .type           = EV_SW,
 145                 .code      = LS_HGL_SW_AUTOPOWER,
 146                 .gpio      = LS_HGL_GPIO_KEY_AUTOPOWER,
 147                 .desc      = "Power-auto Switch",
 148                 .active_low     = 1,
 149         },
 150 };
 151 
 152 static struct gpio_keys_platform_data ls_hgl_button_data = {
 153         .buttons        = ls_hgl_buttons,
 154         .nbuttons       = ARRAY_SIZE(ls_hgl_buttons),
 155 };
 156 
 157 static struct platform_device ls_hgl_button_device = {
 158         .name      = "gpio-keys",
 159         .id          = -1,
 160         .num_resources  = 0,
 161         .dev        = {
 162                 .platform_data  = &ls_hgl_button_data,
 163         },
 164 };
 165 
 166 
 167 /*****************************************************************************
 168  * SATA
 169  ****************************************************************************/
 170 static struct mv_sata_platform_data ls_hgl_sata_data = {
 171         .n_ports        = 2,
 172 };
 173 
 174 
 175 /*****************************************************************************
 176  * Linkstation LS-HGL specific power off method: reboot
 177  ****************************************************************************/
 178 /*
 179  * On the Linkstation LS-HGL, the shutdown process is following:
 180  * - Userland monitors key events until the power switch goes to off position
 181  * - The board reboots
 182  * - U-boot starts and goes into an idle mode waiting for the user
 183  *   to move the switch to ON position
 184  */
 185 
 186 static void ls_hgl_power_off(void)
 187 {
 188         orion5x_restart(REBOOT_HARD, NULL);
 189 }
 190 
 191 
 192 /*****************************************************************************
 193  * General Setup
 194  ****************************************************************************/
 195 
 196 #define LS_HGL_GPIO_USB_POWER   9
 197 #define LS_HGL_GPIO_AUTO_POWER  10
 198 #define LS_HGL_GPIO_POWER           8
 199 
 200 #define LS_HGL_GPIO_HDD_POWER   1
 201 
 202 static unsigned int ls_hgl_mpp_modes[] __initdata = {
 203         MPP0_GPIO, /* LED_PWR */
 204         MPP1_GPIO, /* HDD_PWR */
 205         MPP2_GPIO, /* LED_ALARM */
 206         MPP3_GPIO, /* LED_INFO */
 207         MPP4_UNUSED,
 208         MPP5_UNUSED,
 209         MPP6_GPIO, /* FAN_LCK */
 210         MPP7_GPIO, /* INIT */
 211         MPP8_GPIO, /* POWER */
 212         MPP9_GPIO, /* USB_PWR */
 213         MPP10_GPIO, /* AUTO_POWER */
 214         MPP11_UNUSED, /* LED_ETH (dummy) */
 215         MPP12_UNUSED,
 216         MPP13_UNUSED,
 217         MPP14_UNUSED,
 218         MPP15_GPIO, /* FUNC */
 219         MPP16_UNUSED,
 220         MPP17_GPIO, /* LED_FUNC */
 221         MPP18_UNUSED,
 222         MPP19_UNUSED,
 223         0,
 224 };
 225 
 226 static void __init ls_hgl_init(void)
 227 {
 228         /*
 229          * Setup basic Orion functions. Need to be called early.
 230          */
 231         orion5x_init();
 232 
 233         orion5x_mpp_conf(ls_hgl_mpp_modes);
 234 
 235         /*
 236          * Configure peripherals.
 237          */
 238         orion5x_ehci0_init();
 239         orion5x_ehci1_init();
 240         orion5x_eth_init(&ls_hgl_eth_data);
 241         orion5x_i2c_init();
 242         orion5x_sata_init(&ls_hgl_sata_data);
 243         orion5x_uart0_init();
 244         orion5x_xor_init();
 245 
 246         mvebu_mbus_add_window_by_id(ORION_MBUS_DEVBUS_BOOT_TARGET,
 247                                     ORION_MBUS_DEVBUS_BOOT_ATTR,
 248                                     LS_HGL_NOR_BOOT_BASE,
 249                                     LS_HGL_NOR_BOOT_SIZE);
 250         platform_device_register(&ls_hgl_nor_flash);
 251 
 252         platform_device_register(&ls_hgl_button_device);
 253 
 254         platform_device_register(&ls_hgl_leds);
 255 
 256         i2c_register_board_info(0, &ls_hgl_i2c_rtc, 1);
 257 
 258         /* enable USB power */
 259         gpio_set_value(LS_HGL_GPIO_USB_POWER, 1);
 260 
 261         /* register power-off method */
 262         pm_power_off = ls_hgl_power_off;
 263 
 264         pr_info("%s: finished\n", __func__);
 265 }
 266 
 267 MACHINE_START(LINKSTATION_LS_HGL, "Buffalo Linkstation LS-HGL")
 268         /* Maintainer: Zhu Qingsen <zhuqs@cn.fujistu.com> */
 269         .atag_offset    = 0x100,
 270         .nr_irqs        = ORION5X_NR_IRQS,
 271         .init_machine   = ls_hgl_init,
 272         .map_io         = orion5x_map_io,
 273         .init_early     = orion5x_init_early,
 274         .init_irq       = orion5x_init_irq,
 275         .init_time      = orion5x_timer_init,
 276         .fixup          = tag_fixup_mem32,
 277         .restart        = orion5x_restart,
 278 MACHINE_END