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         .start                  = NAS100D_FLASH_BASE,
  30         .end                    = NAS100D_FLASH_BASE + NAS100D_FLASH_SIZE,
  31         .flags                  = IORESOURCE_MEM,
  32 };
  33
  34 static struct platform_device nas100d_flash = {
  35         .name                   = "IXP4XX-Flash",
  36         .id                     = 0,
  37         .dev.platform_data      = &nas100d_flash_data,
  38         .num_resources          = 1,
  39         .resource               = &nas100d_flash_resource,
  40 };
  41
  42 static struct ixp4xx_i2c_pins nas100d_i2c_gpio_pins = {
  43         .sda_pin                = NAS100D_SDA_PIN,
  44         .scl_pin                = NAS100D_SCL_PIN,
  45 };
  46
  47 static struct platform_device nas100d_i2c_controller = {
  48         .name                   = "IXP4XX-I2C",
  49         .id                     = 0,
  50         .dev.platform_data      = &nas100d_i2c_gpio_pins,
  51         .num_resources          = 0,
  52 };
  53
  54 static struct resource nas100d_uart_resources[] = {
  55         {
  56                 .start          = IXP4XX_UART1_BASE_PHYS,
  57                 .end            = IXP4XX_UART1_BASE_PHYS + 0x0fff,
  58                 .flags          = IORESOURCE_MEM,
  59         },
  60         {
  61                 .start          = IXP4XX_UART2_BASE_PHYS,
  62                 .end            = IXP4XX_UART2_BASE_PHYS + 0x0fff,
  63                 .flags          = IORESOURCE_MEM,
  64         }
  65 };
  66
  67 static struct plat_serial8250_port nas100d_uart_data[] = {
  68         {
  69                 .mapbase        = IXP4XX_UART1_BASE_PHYS,
  70                 .membase        = (char *)IXP4XX_UART1_BASE_VIRT + REG_OFFSET,
  71                 .irq            = IRQ_IXP4XX_UART1,
  72                 .flags          = UPF_BOOT_AUTOCONF,
  73                 .iotype         = UPIO_MEM,
  74                 .regshift       = 2,
  75                 .uartclk        = IXP4XX_UART_XTAL,
  76         },
  77         {
  78                 .mapbase        = IXP4XX_UART2_BASE_PHYS,
  79                 .membase        = (char *)IXP4XX_UART2_BASE_VIRT + REG_OFFSET,
  80                 .irq            = IRQ_IXP4XX_UART2,
  81                 .flags          = UPF_BOOT_AUTOCONF,
  82                 .iotype         = UPIO_MEM,
  83                 .regshift       = 2,
  84                 .uartclk        = IXP4XX_UART_XTAL,
  85         },
  86         { }
  87 };
  88
  89 static struct platform_device nas100d_uart = {
  90         .name                   = "serial8250",
  91         .id                     = PLAT8250_DEV_PLATFORM,
  92         .dev.platform_data      = nas100d_uart_data,
  93         .num_resources          = 2,
  94         .resource               = nas100d_uart_resources,
  95 };
  96
  97 static struct platform_device *nas100d_devices[] __initdata = {
  98         &nas100d_i2c_controller,
  99         &nas100d_flash,
 100         &nas100d_uart,
 101 };
 102
 103 static void nas100d_power_off(void)
 104 {
 105         /* This causes the box to drop the power and go dead. */
 106
 107         /* enable the pwr cntl gpio */
 108         gpio_line_config(NAS100D_PO_GPIO, IXP4XX_GPIO_OUT);
 109
 110         /* do the deed */
 111         gpio_line_set(NAS100D_PO_GPIO, IXP4XX_GPIO_HIGH);
 112 }
 113
 114 static void __init nas100d_init(void)
 115 {
 116         ixp4xx_sys_init();
 117
 118         pm_power_off = nas100d_power_off;
 119
 120         platform_add_devices(nas100d_devices, ARRAY_SIZE(nas100d_devices));
 121 }
 122
 123 MACHINE_START(NAS100D, "Iomega NAS 100d")
 124         /* Maintainer: www.nslu2-linux.org */
 125         .phys_ram       = PHYS_OFFSET,
 126         .phys_io        = IXP4XX_PERIPHERAL_BASE_PHYS,
 127         .io_pg_offst    = ((IXP4XX_PERIPHERAL_BASE_VIRT) >> 18) & 0xFFFC,
 128         .boot_params    = 0x00000100,
 129         .map_io         = ixp4xx_map_io,
 130         .init_irq       = ixp4xx_init_irq,
 131         .timer          = &ixp4xx_timer,
 132         .init_machine   = nas100d_init,
 133 MACHINE_END