release/src-rt-6.x.4708/linux/linux-2.6.36/arch/arm/mach-orion5x/ls_hgl-setup.c

   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 <asm/system.h>
  25 #include <mach/orion5x.h>
  26 #include "common.h"
  27 #include "mpp.h"
  28
  29 /*****************************************************************************
  30  * Linkstation LS-HGL Info
  31  ****************************************************************************/
  32
  33 /*
  34  * 256K NOR flash Device bus boot chip select
  35  */
  36
  37 #define LS_HGL_NOR_BOOT_BASE    0xf4000000
  38 #define LS_HGL_NOR_BOOT_SIZE    SZ_256K
  39
  40 /*****************************************************************************
  41  * 256KB NOR Flash on BOOT Device
  42  ****************************************************************************/
  43
  44 static struct physmap_flash_data ls_hgl_nor_flash_data = {
  45         .width          = 1,
  46 };
  47
  48 static struct resource ls_hgl_nor_flash_resource = {
  49         .flags  = IORESOURCE_MEM,
  50         .start  = LS_HGL_NOR_BOOT_BASE,
  51         .end    = LS_HGL_NOR_BOOT_BASE + LS_HGL_NOR_BOOT_SIZE - 1,
  52 };
  53
  54 static struct platform_device ls_hgl_nor_flash = {
  55         .name                   = "physmap-flash",
  56         .id                     = 0,
  57         .dev            = {
  58                 .platform_data  = &ls_hgl_nor_flash_data,
  59         },
  60         .num_resources          = 1,
  61         .resource               = &ls_hgl_nor_flash_resource,
  62 };
  63
  64 /*****************************************************************************
  65  * Ethernet
  66  ****************************************************************************/
  67
  68 static struct mv643xx_eth_platform_data ls_hgl_eth_data = {
  69         .phy_addr       = 8,
  70 };
  71
  72 /*****************************************************************************
  73  * RTC 5C372a on I2C bus
  74  ****************************************************************************/
  75
  76 static struct i2c_board_info __initdata ls_hgl_i2c_rtc = {
  77         I2C_BOARD_INFO("rs5c372a", 0x32),
  78 };
  79
  80 /*****************************************************************************
  81  * LEDs attached to GPIO
  82  ****************************************************************************/
  83
  84 #define LS_HGL_GPIO_LED_ALARM   2
  85 #define LS_HGL_GPIO_LED_INFO    3
  86 #define LS_HGL_GPIO_LED_FUNC    17
  87 #define LS_HGL_GPIO_LED_PWR     0
  88
  89
  90 static struct gpio_led ls_hgl_led_pins[] = {
  91         {
  92                 .name      = "alarm:red",
  93                 .gpio      = LS_HGL_GPIO_LED_ALARM,
  94                 .active_low     = 1,
  95         }, {
  96                 .name      = "info:amber",
  97                 .gpio      = LS_HGL_GPIO_LED_INFO,
  98                 .active_low     = 1,
  99         }, {
 100                 .name      = "func:blue:top",
 101                 .gpio      = LS_HGL_GPIO_LED_FUNC,
 102                 .active_low     = 1,
 103         }, {
 104                 .name      = "power:blue:bottom",
 105                 .gpio      = LS_HGL_GPIO_LED_PWR,
 106         },
 107 };
 108
 109 static struct gpio_led_platform_data ls_hgl_led_data = {
 110         .leds      = ls_hgl_led_pins,
 111         .num_leds       = ARRAY_SIZE(ls_hgl_led_pins),
 112 };
 113
 114 static struct platform_device ls_hgl_leds = {
 115         .name   = "leds-gpio",
 116         .id     = -1,
 117         .dev    = {
 118                 .platform_data  = &ls_hgl_led_data,
 119         },
 120 };
 121
 122 /****************************************************************************
 123  * GPIO Attached Keys
 124  ****************************************************************************/
 125 #define LS_HGL_GPIO_KEY_FUNC       15
 126 #define LS_HGL_GPIO_KEY_POWER      8
 127 #define LS_HGL_GPIO_KEY_AUTOPOWER  10
 128
 129 #define LS_HGL_SW_POWER     0x00
 130 #define LS_HGL_SW_AUTOPOWER 0x01
 131
 132 static struct gpio_keys_button ls_hgl_buttons[] = {
 133         {
 134                 .code      = KEY_OPTION,
 135                 .gpio      = LS_HGL_GPIO_KEY_FUNC,
 136                 .desc      = "Function Button",
 137                 .active_low     = 1,
 138         }, {
 139                 .type           = EV_SW,
 140                 .code      = LS_HGL_SW_POWER,
 141                 .gpio      = LS_HGL_GPIO_KEY_POWER,
 142                 .desc      = "Power-on Switch",
 143                 .active_low     = 1,
 144         }, {
 145                 .type           = EV_SW,
 146                 .code      = LS_HGL_SW_AUTOPOWER,
 147                 .gpio      = LS_HGL_GPIO_KEY_AUTOPOWER,
 148                 .desc      = "Power-auto Switch",
 149                 .active_low     = 1,
 150         },
 151 };
 152
 153 static struct gpio_keys_platform_data ls_hgl_button_data = {
 154         .buttons        = ls_hgl_buttons,
 155         .nbuttons       = ARRAY_SIZE(ls_hgl_buttons),
 156 };
 157
 158 static struct platform_device ls_hgl_button_device = {
 159         .name      = "gpio-keys",
 160         .id          = -1,
 161         .num_resources  = 0,
 162         .dev        = {
 163                 .platform_data  = &ls_hgl_button_data,
 164         },
 165 };
 166
 167
 168 /*****************************************************************************
 169  * SATA
 170  ****************************************************************************/
 171 static struct mv_sata_platform_data ls_hgl_sata_data = {
 172         .n_ports        = 2,
 173 };
 174
 175
 176 /*****************************************************************************
 177  * Linkstation LS-HGL specific power off method: reboot
 178  ****************************************************************************/
 179 /*
 180  * On the Linkstation LS-HGL, the shutdown process is following:
 181  * - Userland monitors key events until the power switch goes to off position
 182  * - The board reboots
 183  * - U-boot starts and goes into an idle mode waiting for the user
 184  *   to move the switch to ON position
 185  */
 186
 187 static void ls_hgl_power_off(void)
 188 {
 189         arm_machine_restart('h', NULL);
 190 }
 191
 192
 193 /*****************************************************************************
 194  * General Setup
 195  ****************************************************************************/
 196
 197 #define LS_HGL_GPIO_USB_POWER   9
 198 #define LS_HGL_GPIO_AUTO_POWER  10
 199 #define LS_HGL_GPIO_POWER           8
 200
 201 #define LS_HGL_GPIO_HDD_POWER   1
 202
 203 static struct orion5x_mpp_mode ls_hgl_mpp_modes[] __initdata = {
 204         {  0, MPP_GPIO }, /* LED_PWR */
 205         {  1, MPP_GPIO }, /* HDD_PWR */
 206         {  2, MPP_GPIO }, /* LED_ALARM */
 207         {  3, MPP_GPIO }, /* LED_INFO */
 208         {  4, MPP_UNUSED },
 209         {  5, MPP_UNUSED },
 210         {  6, MPP_GPIO }, /* FAN_LCK */
 211         {  7, MPP_GPIO }, /* INIT */
 212         {  8, MPP_GPIO }, /* POWER */
 213         {  9, MPP_GPIO }, /* USB_PWR */
 214         { 10, MPP_GPIO }, /* AUTO_POWER */
 215         { 11, MPP_UNUSED }, /* LED_ETH (dummy) */
 216         { 12, MPP_UNUSED },
 217         { 13, MPP_UNUSED },
 218         { 14, MPP_UNUSED },
 219         { 15, MPP_GPIO }, /* FUNC */
 220         { 16, MPP_UNUSED },
 221         { 17, MPP_GPIO }, /* LED_FUNC */
 222         { 18, MPP_UNUSED },
 223         { 19, MPP_UNUSED },
 224         { -1 },
 225 };
 226
 227 static void __init ls_hgl_init(void)
 228 {
 229         /*
 230          * Setup basic Orion functions. Need to be called early.
 231          */
 232         orion5x_init();
 233
 234         orion5x_mpp_conf(ls_hgl_mpp_modes);
 235
 236         /*
 237          * Configure peripherals.
 238          */
 239         orion5x_ehci0_init();
 240         orion5x_ehci1_init();
 241         orion5x_eth_init(&ls_hgl_eth_data);
 242         orion5x_i2c_init();
 243         orion5x_sata_init(&ls_hgl_sata_data);
 244         orion5x_uart0_init();
 245         orion5x_xor_init();
 246
 247         orion5x_setup_dev_boot_win(LS_HGL_NOR_BOOT_BASE,
 248                                    LS_HGL_NOR_BOOT_SIZE);
 249         platform_device_register(&ls_hgl_nor_flash);
 250
 251         platform_device_register(&ls_hgl_button_device);
 252
 253         platform_device_register(&ls_hgl_leds);
 254
 255         i2c_register_board_info(0, &ls_hgl_i2c_rtc, 1);
 256
 257         /* enable USB power */
 258         gpio_set_value(LS_HGL_GPIO_USB_POWER, 1);
 259
 260         /* register power-off method */
 261         pm_power_off = ls_hgl_power_off;
 262
 263         pr_info("%s: finished\n", __func__);
 264 }
 265
 266 MACHINE_START(LINKSTATION_LS_HGL, "Buffalo Linkstation LS-HGL")
 267         /* Maintainer: Zhu Qingsen <zhuqs@cn.fujistu.com> */
 268         .phys_io        = ORION5X_REGS_PHYS_BASE,
 269         .io_pg_offst    = ((ORION5X_REGS_VIRT_BASE) >> 18) & 0xFFFC,
 270         .boot_params    = 0x00000100,
 271         .init_machine   = ls_hgl_init,
 272         .map_io         = orion5x_map_io,
 273         .init_irq       = orion5x_init_irq,
 274         .timer          = &orion5x_timer,
 275         .fixup          = tag_fixup_mem32,
 276 MACHINE_END