err.no Git - linux-2.6/blob - arch/arm/mach-ixp4xx/nas100d-setup.c

   1 /*
   2  * arch/arm/mach-ixp4xx/nas100d-setup.c
   3  *
   4  * NAS 100d board-setup
   5  *
   6  * based ixdp425-setup.c:
   7  *      Copyright (C) 2003-2004 MontaVista Software, Inc.
   8  *
   9  * Author: Alessandro Zummo <a.zummo@towertech.it>
  10  * Author: Rod Whitby <rod@whitby.id.au>
  11  * Maintainers: http://www.nslu2-linux.org/
  12  *
  13  */
  14
  15 #include <linux/kernel.h>
  16 #include <linux/serial.h>
  17 #include <linux/serial_8250.h>
  18 #include <linux/leds.h>
  19 #include <linux/i2c.h>
  20 #include <linux/i2c-gpio.h>
  21
  22 #include <asm/mach-types.h>
  23 #include <asm/mach/arch.h>
  24 #include <asm/mach/flash.h>
  25
  26 static struct flash_platform_data nas100d_flash_data = {
  27         .map_name               = "cfi_probe",
  28         .width                  = 2,
  29 };
  30
  31 static struct resource nas100d_flash_resource = {
  32         .flags                  = IORESOURCE_MEM,
  33 };
  34
  35 static struct platform_device nas100d_flash = {
  36         .name                   = "IXP4XX-Flash",
  37         .id                     = 0,
  38         .dev.platform_data      = &nas100d_flash_data,
  39         .num_resources          = 1,
  40         .resource               = &nas100d_flash_resource,
  41 };
  42
  43 static struct i2c_board_info __initdata nas100d_i2c_board_info [] = {
  44         {
  45                 I2C_BOARD_INFO("rtc-pcf8563", 0x51),
  46         },
  47 };
  48
  49 static struct gpio_led nas100d_led_pins[] = {
  50         {
  51                 .name           = "wlan",   /* green led */
  52                 .gpio           = NAS100D_LED_WLAN_GPIO,
  53                 .active_low     = true,
  54         },
  55         {
  56                 .name           = "power",  /* blue power led (off=flashing) */
  57                 .gpio           = NAS100D_LED_PWR_GPIO,
  58                 .active_low     = true,
  59         },
  60         {
  61                 .name           = "disk",   /* yellow led */
  62                 .gpio           = NAS100D_LED_DISK_GPIO,
  63                 .active_low     = true,
  64         },
  65 };
  66
  67 static struct gpio_led_platform_data nas100d_led_data = {
  68         .num_leds               = ARRAY_SIZE(nas100d_led_pins),
  69         .leds                   = nas100d_led_pins,
  70 };
  71
  72 static struct platform_device nas100d_leds = {
  73         .name                   = "leds-gpio",
  74         .id                     = -1,
  75         .dev.platform_data      = &nas100d_led_data,
  76 };
  77
  78 static struct i2c_gpio_platform_data nas100d_i2c_gpio_data = {
  79         .sda_pin                = NAS100D_SDA_PIN,
  80         .scl_pin                = NAS100D_SCL_PIN,
  81 };
  82
  83 static struct platform_device nas100d_i2c_gpio = {
  84         .name                   = "i2c-gpio",
  85         .id                     = 0,
  86         .dev     = {
  87                 .platform_data  = &nas100d_i2c_gpio_data,
  88         },
  89 };
  90
  91 static struct resource nas100d_uart_resources[] = {
  92         {
  93                 .start          = IXP4XX_UART1_BASE_PHYS,
  94                 .end            = IXP4XX_UART1_BASE_PHYS + 0x0fff,
  95                 .flags          = IORESOURCE_MEM,
  96         },
  97         {
  98                 .start          = IXP4XX_UART2_BASE_PHYS,
  99                 .end            = IXP4XX_UART2_BASE_PHYS + 0x0fff,
 100                 .flags          = IORESOURCE_MEM,
 101         }
 102 };
 103
 104 static struct plat_serial8250_port nas100d_uart_data[] = {
 105         {
 106                 .mapbase        = IXP4XX_UART1_BASE_PHYS,
 107                 .membase        = (char *)IXP4XX_UART1_BASE_VIRT + REG_OFFSET,
 108                 .irq            = IRQ_IXP4XX_UART1,
 109                 .flags          = UPF_BOOT_AUTOCONF,
 110                 .iotype         = UPIO_MEM,
 111                 .regshift       = 2,
 112                 .uartclk        = IXP4XX_UART_XTAL,
 113         },
 114         {
 115                 .mapbase        = IXP4XX_UART2_BASE_PHYS,
 116                 .membase        = (char *)IXP4XX_UART2_BASE_VIRT + REG_OFFSET,
 117                 .irq            = IRQ_IXP4XX_UART2,
 118                 .flags          = UPF_BOOT_AUTOCONF,
 119                 .iotype         = UPIO_MEM,
 120                 .regshift       = 2,
 121                 .uartclk        = IXP4XX_UART_XTAL,
 122         },
 123         { }
 124 };
 125
 126 static struct platform_device nas100d_uart = {
 127         .name                   = "serial8250",
 128         .id                     = PLAT8250_DEV_PLATFORM,
 129         .dev.platform_data      = nas100d_uart_data,
 130         .num_resources          = 2,
 131         .resource               = nas100d_uart_resources,
 132 };
 133
 134 static struct platform_device *nas100d_devices[] __initdata = {
 135         &nas100d_i2c_gpio,
 136         &nas100d_flash,
 137         &nas100d_leds,
 138 };
 139
 140 static void nas100d_power_off(void)
 141 {
 142         /* This causes the box to drop the power and go dead. */
 143
 144         /* enable the pwr cntl gpio */
 145         gpio_line_config(NAS100D_PO_GPIO, IXP4XX_GPIO_OUT);
 146
 147         /* do the deed */
 148         gpio_line_set(NAS100D_PO_GPIO, IXP4XX_GPIO_HIGH);
 149 }
 150
 151 static void __init nas100d_init(void)
 152 {
 153         ixp4xx_sys_init();
 154
 155         /* gpio 14 and 15 are _not_ clocks */
 156         *IXP4XX_GPIO_GPCLKR = 0;
 157
 158         nas100d_flash_resource.start = IXP4XX_EXP_BUS_BASE(0);
 159         nas100d_flash_resource.end =
 160                 IXP4XX_EXP_BUS_BASE(0) + ixp4xx_exp_bus_size - 1;
 161
 162         pm_power_off = nas100d_power_off;
 163
 164         i2c_register_board_info(0, nas100d_i2c_board_info,
 165                                 ARRAY_SIZE(nas100d_i2c_board_info));
 166
 167         /*
 168          * This is only useful on a modified machine, but it is valuable
 169          * to have it first in order to see debug messages, and so that
 170          * it does *not* get removed if platform_add_devices fails!
 171          */
 172         (void)platform_device_register(&nas100d_uart);
 173
 174         platform_add_devices(nas100d_devices, ARRAY_SIZE(nas100d_devices));
 175 }
 176
 177 MACHINE_START(NAS100D, "Iomega NAS 100d")
 178         /* Maintainer: www.nslu2-linux.org */
 179         .phys_io        = IXP4XX_PERIPHERAL_BASE_PHYS,
 180         .io_pg_offst    = ((IXP4XX_PERIPHERAL_BASE_VIRT) >> 18) & 0xFFFC,
 181         .boot_params    = 0x00000100,
 182         .map_io         = ixp4xx_map_io,
 183         .init_irq       = ixp4xx_init_irq,
 184         .timer          = &ixp4xx_timer,
 185         .init_machine   = nas100d_init,
 186 MACHINE_END