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
  19 #include <asm/mach-types.h>
  20 #include <asm/mach/arch.h>
  21 #include <asm/mach/flash.h>
  22
  23 static struct flash_platform_data nas100d_flash_data = {
  24         .map_name               = "cfi_probe",
  25         .width                  = 2,
  26 };
  27
  28 static struct resource nas100d_flash_resource = {
  29         .flags                  = IORESOURCE_MEM,
  30 };
  31
  32 static struct platform_device nas100d_flash = {
  33         .name                   = "IXP4XX-Flash",
  34         .id                     = 0,
  35         .dev.platform_data      = &nas100d_flash_data,
  36         .num_resources          = 1,
  37         .resource               = &nas100d_flash_resource,
  38 };
  39
  40 static struct ixp4xx_i2c_pins nas100d_i2c_gpio_pins = {
  41         .sda_pin                = NAS100D_SDA_PIN,
  42         .scl_pin                = NAS100D_SCL_PIN,
  43 };
  44
  45 static struct platform_device nas100d_i2c_controller = {
  46         .name                   = "IXP4XX-I2C",
  47         .id                     = 0,
  48         .dev.platform_data      = &nas100d_i2c_gpio_pins,
  49         .num_resources          = 0,
  50 };
  51
  52 static struct resource nas100d_uart_resources[] = {
  53         {
  54                 .start          = IXP4XX_UART1_BASE_PHYS,
  55                 .end            = IXP4XX_UART1_BASE_PHYS + 0x0fff,
  56                 .flags          = IORESOURCE_MEM,
  57         },
  58         {
  59                 .start          = IXP4XX_UART2_BASE_PHYS,
  60                 .end            = IXP4XX_UART2_BASE_PHYS + 0x0fff,
  61                 .flags          = IORESOURCE_MEM,
  62         }
  63 };
  64
  65 static struct plat_serial8250_port nas100d_uart_data[] = {
  66         {
  67                 .mapbase        = IXP4XX_UART1_BASE_PHYS,
  68                 .membase        = (char *)IXP4XX_UART1_BASE_VIRT + REG_OFFSET,
  69                 .irq            = IRQ_IXP4XX_UART1,
  70                 .flags          = UPF_BOOT_AUTOCONF,
  71                 .iotype         = UPIO_MEM,
  72                 .regshift       = 2,
  73                 .uartclk        = IXP4XX_UART_XTAL,
  74         },
  75         {
  76                 .mapbase        = IXP4XX_UART2_BASE_PHYS,
  77                 .membase        = (char *)IXP4XX_UART2_BASE_VIRT + REG_OFFSET,
  78                 .irq            = IRQ_IXP4XX_UART2,
  79                 .flags          = UPF_BOOT_AUTOCONF,
  80                 .iotype         = UPIO_MEM,
  81                 .regshift       = 2,
  82                 .uartclk        = IXP4XX_UART_XTAL,
  83         },
  84         { }
  85 };
  86
  87 static struct platform_device nas100d_uart = {
  88         .name                   = "serial8250",
  89         .id                     = PLAT8250_DEV_PLATFORM,
  90         .dev.platform_data      = nas100d_uart_data,
  91         .num_resources          = 2,
  92         .resource               = nas100d_uart_resources,
  93 };
  94
  95 static struct platform_device *nas100d_devices[] __initdata = {
  96         &nas100d_i2c_controller,
  97         &nas100d_flash,
  98         &nas100d_uart,
  99 };
 100
 101 static void nas100d_power_off(void)
 102 {
 103         /* This causes the box to drop the power and go dead. */
 104
 105         /* enable the pwr cntl gpio */
 106         gpio_line_config(NAS100D_PO_GPIO, IXP4XX_GPIO_OUT);
 107
 108         /* do the deed */
 109         gpio_line_set(NAS100D_PO_GPIO, IXP4XX_GPIO_HIGH);
 110 }
 111
 112 static void __init nas100d_init(void)
 113 {
 114         ixp4xx_sys_init();
 115
 116         nas100d_flash_resource.start = IXP4XX_EXP_BUS_BASE(0);
 117         nas100d_flash_resource.end =
 118                 IXP4XX_EXP_BUS_BASE(0) + ixp4xx_exp_bus_size - 1;
 119
 120         pm_power_off = nas100d_power_off;
 121
 122         platform_add_devices(nas100d_devices, ARRAY_SIZE(nas100d_devices));
 123 }
 124
 125 MACHINE_START(NAS100D, "Iomega NAS 100d")
 126         /* Maintainer: www.nslu2-linux.org */
 127         .phys_io        = IXP4XX_PERIPHERAL_BASE_PHYS,
 128         .io_pg_offst    = ((IXP4XX_PERIPHERAL_BASE_VIRT) >> 18) & 0xFFFC,
 129         .boot_params    = 0x00000100,
 130         .map_io         = ixp4xx_map_io,
 131         .init_irq       = ixp4xx_init_irq,
 132         .timer          = &ixp4xx_timer,
 133         .init_machine   = nas100d_init,
 134 MACHINE_END