release/src-rt-6.x.4708/linux/linux-2.6.36/arch/arm/mach-ixp4xx/avila-setup.c

   1 /*
   2  * arch/arm/mach-ixp4xx/avila-setup.c
   3  *
   4  * Gateworks Avila board-setup
   5  *
   6  * Author: Michael-Luke Jones <mlj28@cam.ac.uk>
   7  *
   8  * Based on ixdp-setup.c
   9  * Copyright (C) 2003-2005 MontaVista Software, Inc.
  10  *
  11  * Author: Deepak Saxena <dsaxena@plexity.net>
  12  */
  13
  14 #include <linux/kernel.h>
  15 #include <linux/init.h>
  16 #include <linux/device.h>
  17 #include <linux/serial.h>
  18 #include <linux/tty.h>
  19 #include <linux/serial_8250.h>
  20 #include <linux/i2c-gpio.h>
  21 #include <asm/types.h>
  22 #include <asm/setup.h>
  23 #include <asm/memory.h>
  24 #include <mach/hardware.h>
  25 #include <asm/mach-types.h>
  26 #include <asm/irq.h>
  27 #include <asm/mach/arch.h>
  28 #include <asm/mach/flash.h>
  29
  30 #define AVILA_SDA_PIN   7
  31 #define AVILA_SCL_PIN   6
  32
  33 static struct flash_platform_data avila_flash_data = {
  34         .map_name       = "cfi_probe",
  35         .width          = 2,
  36 };
  37
  38 static struct resource avila_flash_resource = {
  39         .flags          = IORESOURCE_MEM,
  40 };
  41
  42 static struct platform_device avila_flash = {
  43         .name           = "IXP4XX-Flash",
  44         .id             = 0,
  45         .dev            = {
  46                 .platform_data = &avila_flash_data,
  47         },
  48         .num_resources  = 1,
  49         .resource       = &avila_flash_resource,
  50 };
  51
  52 static struct i2c_gpio_platform_data avila_i2c_gpio_data = {
  53         .sda_pin        = AVILA_SDA_PIN,
  54         .scl_pin        = AVILA_SCL_PIN,
  55 };
  56
  57 static struct platform_device avila_i2c_gpio = {
  58         .name           = "i2c-gpio",
  59         .id             = 0,
  60         .dev     = {
  61                 .platform_data  = &avila_i2c_gpio_data,
  62         },
  63 };
  64
  65 static struct resource avila_uart_resources[] = {
  66         {
  67                 .start          = IXP4XX_UART1_BASE_PHYS,
  68                 .end            = IXP4XX_UART1_BASE_PHYS + 0x0fff,
  69                 .flags          = IORESOURCE_MEM
  70         },
  71         {
  72                 .start          = IXP4XX_UART2_BASE_PHYS,
  73                 .end            = IXP4XX_UART2_BASE_PHYS + 0x0fff,
  74                 .flags          = IORESOURCE_MEM
  75         }
  76 };
  77
  78 static struct plat_serial8250_port avila_uart_data[] = {
  79         {
  80                 .mapbase        = IXP4XX_UART1_BASE_PHYS,
  81                 .membase        = (char *)IXP4XX_UART1_BASE_VIRT + REG_OFFSET,
  82                 .irq            = IRQ_IXP4XX_UART1,
  83                 .flags          = UPF_BOOT_AUTOCONF | UPF_SKIP_TEST,
  84                 .iotype         = UPIO_MEM,
  85                 .regshift       = 2,
  86                 .uartclk        = IXP4XX_UART_XTAL,
  87         },
  88         {
  89                 .mapbase        = IXP4XX_UART2_BASE_PHYS,
  90                 .membase        = (char *)IXP4XX_UART2_BASE_VIRT + REG_OFFSET,
  91                 .irq            = IRQ_IXP4XX_UART2,
  92                 .flags          = UPF_BOOT_AUTOCONF | UPF_SKIP_TEST,
  93                 .iotype         = UPIO_MEM,
  94                 .regshift       = 2,
  95                 .uartclk        = IXP4XX_UART_XTAL,
  96         },
  97         { },
  98 };
  99
 100 static struct platform_device avila_uart = {
 101         .name                   = "serial8250",
 102         .id                     = PLAT8250_DEV_PLATFORM,
 103         .dev.platform_data      = avila_uart_data,
 104         .num_resources          = 2,
 105         .resource               = avila_uart_resources
 106 };
 107
 108 static struct resource avila_pata_resources[] = {
 109         {
 110                 .flags  = IORESOURCE_MEM
 111         },
 112         {
 113                 .flags  = IORESOURCE_MEM,
 114         },
 115         {
 116                 .name   = "intrq",
 117                 .start  = IRQ_IXP4XX_GPIO12,
 118                 .end    = IRQ_IXP4XX_GPIO12,
 119                 .flags  = IORESOURCE_IRQ,
 120         },
 121 };
 122
 123 static struct ixp4xx_pata_data avila_pata_data = {
 124         .cs0_bits       = 0xbfff0043,
 125         .cs1_bits       = 0xbfff0043,
 126 };
 127
 128 static struct platform_device avila_pata = {
 129         .name                   = "pata_ixp4xx_cf",
 130         .id                     = 0,
 131         .dev.platform_data      = &avila_pata_data,
 132         .num_resources          = ARRAY_SIZE(avila_pata_resources),
 133         .resource               = avila_pata_resources,
 134 };
 135
 136 static struct platform_device *avila_devices[] __initdata = {
 137         &avila_i2c_gpio,
 138         &avila_flash,
 139         &avila_uart
 140 };
 141
 142 static void __init avila_init(void)
 143 {
 144         ixp4xx_sys_init();
 145
 146         avila_flash_resource.start = IXP4XX_EXP_BUS_BASE(0);
 147         avila_flash_resource.end =
 148                 IXP4XX_EXP_BUS_BASE(0) + ixp4xx_exp_bus_size - 1;
 149
 150         platform_add_devices(avila_devices, ARRAY_SIZE(avila_devices));
 151
 152         avila_pata_resources[0].start = IXP4XX_EXP_BUS_BASE(1);
 153         avila_pata_resources[0].end = IXP4XX_EXP_BUS_END(1);
 154
 155         avila_pata_resources[1].start = IXP4XX_EXP_BUS_BASE(2);
 156         avila_pata_resources[1].end = IXP4XX_EXP_BUS_END(2);
 157
 158         avila_pata_data.cs0_cfg = IXP4XX_EXP_CS1;
 159         avila_pata_data.cs1_cfg = IXP4XX_EXP_CS2;
 160
 161         platform_device_register(&avila_pata);
 162
 163 }
 164
 165 MACHINE_START(AVILA, "Gateworks Avila Network Platform")
 166         /* Maintainer: Deepak Saxena <dsaxena@plexity.net> */
 167         .phys_io        = IXP4XX_PERIPHERAL_BASE_PHYS,
 168         .io_pg_offst    = ((IXP4XX_PERIPHERAL_BASE_VIRT) >> 18) & 0xfffc,
 169         .map_io         = ixp4xx_map_io,
 170         .init_irq       = ixp4xx_init_irq,
 171         .timer          = &ixp4xx_timer,
 172         .boot_params    = 0x0100,
 173         .init_machine   = avila_init,
 174 MACHINE_END
 175
 176  /*
 177   * Loft is functionally equivalent to Avila except that it has a
 178   * different number for the maximum PCI devices.  The MACHINE
 179   * structure below is identical to Avila except for the comment.
 180   */
 181 #ifdef CONFIG_MACH_LOFT
 182 MACHINE_START(LOFT, "Giant Shoulder Inc Loft board")
 183         /* Maintainer: Tom Billman <kernel@giantshoulderinc.com> */
 184         .phys_io        = IXP4XX_PERIPHERAL_BASE_PHYS,
 185         .io_pg_offst    = ((IXP4XX_PERIPHERAL_BASE_VIRT) >> 18) & 0xfffc,
 186         .map_io         = ixp4xx_map_io,
 187         .init_irq       = ixp4xx_init_irq,
 188         .timer          = &ixp4xx_timer,
 189         .boot_params    = 0x0100,
 190         .init_machine   = avila_init,
 191 MACHINE_END
 192 #endif