linux/arch/arm/mach-orion5x/ls_hgl-setup.c
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   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
  44static struct physmap_flash_data ls_hgl_nor_flash_data = {
  45        .width          = 1,
  46};
  47
  48static 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
  54static 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
  68static struct mv643xx_eth_platform_data ls_hgl_eth_data = {
  69        .phy_addr       = 8,
  70};
  71
  72/*****************************************************************************
  73 * RTC 5C372a on I2C bus
  74 ****************************************************************************/
  75
  76static 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
  90static 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
 109static 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
 114static 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
 132static 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
 153static struct gpio_keys_platform_data ls_hgl_button_data = {
 154        .buttons        = ls_hgl_buttons,
 155        .nbuttons       = ARRAY_SIZE(ls_hgl_buttons),
 156};
 157
 158static 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 ****************************************************************************/
 171static 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
 187static 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
 203static 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
 227static 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
 266MACHINE_START(LINKSTATION_LS_HGL, "Buffalo Linkstation LS-HGL")
 267        /* Maintainer: Zhu Qingsen <zhuqs@cn.fujistu.com> */
 268        .boot_params    = 0x00000100,
 269        .init_machine   = ls_hgl_init,
 270        .map_io         = orion5x_map_io,
 271        .init_irq       = orion5x_init_irq,
 272        .timer          = &orion5x_timer,
 273        .fixup          = tag_fixup_mem32,
 274MACHINE_END
 275