arch/arm/mach-orion5x/lsmini-setup.c

   1 /*
   2  * arch/arm/mach-orion5x/lsmini-setup.c
   3  *
   4  * Maintainer: Alexey Kopytko <alexey@kopytko.ru>
   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 <mach/orion5x.h>
  25 #include "common.h"
  26 #include "mpp.h"
  27
  28 /*****************************************************************************
  29  * Linkstation Mini Info
  30  ****************************************************************************/
  31
  32 /*
  33  * 256K NOR flash Device bus boot chip select
  34  */
  35
  36 #define LSMINI_NOR_BOOT_BASE    0xf4000000
  37 #define LSMINI_NOR_BOOT_SIZE    SZ_256K
  38
  39 /*****************************************************************************
  40  * 256KB NOR Flash on BOOT Device
  41  ****************************************************************************/
  42
  43 static struct physmap_flash_data lsmini_nor_flash_data = {
  44         .width          = 1,
  45 };
  46
  47 static struct resource lsmini_nor_flash_resource = {
  48         .flags  = IORESOURCE_MEM,
  49         .start  = LSMINI_NOR_BOOT_BASE,
  50         .end    = LSMINI_NOR_BOOT_BASE + LSMINI_NOR_BOOT_SIZE - 1,
  51 };
  52
  53 static struct platform_device lsmini_nor_flash = {
  54         .name                   = "physmap-flash",
  55         .id                     = 0,
  56         .dev            = {
  57                 .platform_data  = &lsmini_nor_flash_data,
  58         },
  59         .num_resources          = 1,
  60         .resource               = &lsmini_nor_flash_resource,
  61 };
  62
  63 /*****************************************************************************
  64  * Ethernet
  65  ****************************************************************************/
  66
  67 static struct mv643xx_eth_platform_data lsmini_eth_data = {
  68         .phy_addr       = 8,
  69 };
  70
  71 /*****************************************************************************
  72  * RTC 5C372a on I2C bus
  73  ****************************************************************************/
  74
  75 static struct i2c_board_info __initdata lsmini_i2c_rtc = {
  76         I2C_BOARD_INFO("rs5c372a", 0x32),
  77 };
  78
  79 /*****************************************************************************
  80  * LEDs attached to GPIO
  81  ****************************************************************************/
  82
  83 #define LSMINI_GPIO_LED_ALARM   2
  84 #define LSMINI_GPIO_LED_INFO    3
  85 #define LSMINI_GPIO_LED_FUNC    9
  86 #define LSMINI_GPIO_LED_PWR     14
  87
  88 static struct gpio_led lsmini_led_pins[] = {
  89         {
  90                 .name      = "alarm:red",
  91                 .gpio      = LSMINI_GPIO_LED_ALARM,
  92                 .active_low     = 1,
  93         }, {
  94                 .name      = "info:amber",
  95                 .gpio      = LSMINI_GPIO_LED_INFO,
  96                 .active_low     = 1,
  97         }, {
  98                 .name      = "func:blue:top",
  99                 .gpio      = LSMINI_GPIO_LED_FUNC,
 100                 .active_low     = 1,
 101         }, {
 102                 .name      = "power:blue:bottom",
 103                 .gpio      = LSMINI_GPIO_LED_PWR,
 104         },
 105 };
 106
 107 static struct gpio_led_platform_data lsmini_led_data = {
 108         .leds      = lsmini_led_pins,
 109         .num_leds       = ARRAY_SIZE(lsmini_led_pins),
 110 };
 111
 112 static struct platform_device lsmini_leds = {
 113         .name   = "leds-gpio",
 114         .id     = -1,
 115         .dev    = {
 116                 .platform_data  = &lsmini_led_data,
 117         },
 118 };
 119
 120 /****************************************************************************
 121  * GPIO Attached Keys
 122  ****************************************************************************/
 123
 124 #define LSMINI_GPIO_KEY_FUNC       15
 125 #define LSMINI_GPIO_KEY_POWER      18
 126 #define LSMINI_GPIO_KEY_AUTOPOWER 17
 127
 128 #define LSMINI_SW_POWER         0x00
 129 #define LSMINI_SW_AUTOPOWER     0x01
 130
 131 static struct gpio_keys_button lsmini_buttons[] = {
 132         {
 133                 .code      = KEY_OPTION,
 134                 .gpio      = LSMINI_GPIO_KEY_FUNC,
 135                 .desc      = "Function Button",
 136                 .active_low     = 1,
 137         }, {
 138                 .type           = EV_SW,
 139                 .code      = LSMINI_SW_POWER,
 140                 .gpio      = LSMINI_GPIO_KEY_POWER,
 141                 .desc      = "Power-on Switch",
 142                 .active_low     = 1,
 143         }, {
 144                 .type           = EV_SW,
 145                 .code      = LSMINI_SW_AUTOPOWER,
 146                 .gpio      = LSMINI_GPIO_KEY_AUTOPOWER,
 147                 .desc      = "Power-auto Switch",
 148                 .active_low     = 1,
 149         },
 150 };
 151
 152 static struct gpio_keys_platform_data lsmini_button_data = {
 153         .buttons        = lsmini_buttons,
 154         .nbuttons       = ARRAY_SIZE(lsmini_buttons),
 155 };
 156
 157 static struct platform_device lsmini_button_device = {
 158         .name      = "gpio-keys",
 159         .id          = -1,
 160         .num_resources  = 0,
 161         .dev        = {
 162                 .platform_data  = &lsmini_button_data,
 163         },
 164 };
 165
 166
 167 /*****************************************************************************
 168  * SATA
 169  ****************************************************************************/
 170 static struct mv_sata_platform_data lsmini_sata_data = {
 171         .n_ports        = 2,
 172 };
 173
 174
 175 /*****************************************************************************
 176  * Linkstation Mini specific power off method: reboot
 177  ****************************************************************************/
 178 /*
 179  * On the Linkstation Mini, 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 lsmini_power_off(void)
 187 {
 188         orion5x_restart(REBOOT_HARD, NULL);
 189 }
 190
 191
 192 /*****************************************************************************
 193  * General Setup
 194  ****************************************************************************/
 195
 196 #define LSMINI_GPIO_USB_POWER   16
 197 #define LSMINI_GPIO_AUTO_POWER  17
 198 #define LSMINI_GPIO_POWER       18
 199
 200 #define LSMINI_GPIO_HDD_POWER0  1
 201 #define LSMINI_GPIO_HDD_POWER1  19
 202
 203 static unsigned int lsmini_mpp_modes[] __initdata = {
 204         MPP0_UNUSED, /* LED_RESERVE1 (unused) */
 205         MPP1_GPIO, /* HDD_PWR */
 206         MPP2_GPIO, /* LED_ALARM */
 207         MPP3_GPIO, /* LED_INFO */
 208         MPP4_UNUSED,
 209         MPP5_UNUSED,
 210         MPP6_UNUSED,
 211         MPP7_UNUSED,
 212         MPP8_UNUSED,
 213         MPP9_GPIO, /* LED_FUNC */
 214         MPP10_UNUSED,
 215         MPP11_UNUSED, /* LED_ETH (dummy) */
 216         MPP12_UNUSED,
 217         MPP13_UNUSED,
 218         MPP14_GPIO, /* LED_PWR */
 219         MPP15_GPIO, /* FUNC */
 220         MPP16_GPIO, /* USB_PWR */
 221         MPP17_GPIO, /* AUTO_POWER */
 222         MPP18_GPIO, /* POWER */
 223         MPP19_GPIO, /* HDD_PWR1 */
 224         0,
 225 };
 226
 227 static void __init lsmini_init(void)
 228 {
 229         /*
 230          * Setup basic Orion functions. Need to be called early.
 231          */
 232         orion5x_init();
 233
 234         orion5x_mpp_conf(lsmini_mpp_modes);
 235
 236         /*
 237          * Configure peripherals.
 238          */
 239         orion5x_ehci0_init();
 240         orion5x_ehci1_init();
 241         orion5x_eth_init(&lsmini_eth_data);
 242         orion5x_i2c_init();
 243         orion5x_sata_init(&lsmini_sata_data);
 244         orion5x_uart0_init();
 245         orion5x_xor_init();
 246
 247         mvebu_mbus_add_window("devbus-boot", LSMINI_NOR_BOOT_BASE,
 248                               LSMINI_NOR_BOOT_SIZE);
 249         platform_device_register(&lsmini_nor_flash);
 250
 251         platform_device_register(&lsmini_button_device);
 252
 253         platform_device_register(&lsmini_leds);
 254
 255         i2c_register_board_info(0, &lsmini_i2c_rtc, 1);
 256
 257         /* enable USB power */
 258         gpio_set_value(LSMINI_GPIO_USB_POWER, 1);
 259
 260         /* register power-off method */
 261         pm_power_off = lsmini_power_off;
 262
 263         pr_info("%s: finished\n", __func__);
 264 }
 265
 266 #ifdef CONFIG_MACH_LINKSTATION_MINI
 267 MACHINE_START(LINKSTATION_MINI, "Buffalo Linkstation Mini")
 268         /* Maintainer: Alexey Kopytko <alexey@kopytko.ru> */
 269         .atag_offset    = 0x100,
 270         .init_machine   = lsmini_init,
 271         .map_io         = orion5x_map_io,
 272         .init_early     = orion5x_init_early,
 273         .init_irq       = orion5x_init_irq,
 274         .init_time      = orion5x_timer_init,
 275         .fixup          = tag_fixup_mem32,
 276         .restart        = orion5x_restart,
 277 MACHINE_END
 278 #endif