kernel/2.6.29.6-aldebaran-rt/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/slab.h>
  21 #include <linux/i2c-gpio.h>
  22
  23 #include <asm/types.h>
  24 #include <asm/setup.h>
  25 #include <asm/memory.h>
  26 #include <mach/hardware.h>
  27 #include <asm/mach-types.h>
  28 #include <asm/irq.h>
  29 #include <asm/mach/arch.h>
  30 #include <asm/mach/flash.h>
  31
  32 static struct flash_platform_data avila_flash_data = {
  33         .map_name       = "cfi_probe",
  34         .width          = 2,
  35 };
  36
  37 static struct resource avila_flash_resource = {
  38         .flags          = IORESOURCE_MEM,
  39 };
  40
  41 static struct platform_device avila_flash = {
  42         .name           = "IXP4XX-Flash",
  43         .id             = 0,
  44         .dev            = {
  45                 .platform_data = &avila_flash_data,
  46         },
  47         .num_resources  = 1,
  48         .resource       = &avila_flash_resource,
  49 };
  50
  51 static struct i2c_gpio_platform_data avila_i2c_gpio_data = {
  52         .sda_pin        = AVILA_SDA_PIN,
  53         .scl_pin        = AVILA_SCL_PIN,
  54 };
  55
  56 static struct platform_device avila_i2c_gpio = {
  57         .name           = "i2c-gpio",
  58         .id             = 0,
  59         .dev     = {
  60                 .platform_data  = &avila_i2c_gpio_data,
  61         },
  62 };
  63
  64 static struct resource avila_uart_resources[] = {
  65         {
  66                 .start          = IXP4XX_UART1_BASE_PHYS,
  67                 .end            = IXP4XX_UART1_BASE_PHYS + 0x0fff,
  68                 .flags          = IORESOURCE_MEM
  69         },
  70         {
  71                 .start          = IXP4XX_UART2_BASE_PHYS,
  72                 .end            = IXP4XX_UART2_BASE_PHYS + 0x0fff,
  73                 .flags          = IORESOURCE_MEM
  74         }
  75 };
  76
  77 static struct plat_serial8250_port avila_uart_data[] = {
  78         {
  79                 .mapbase        = IXP4XX_UART1_BASE_PHYS,
  80                 .membase        = (char *)IXP4XX_UART1_BASE_VIRT + REG_OFFSET,
  81                 .irq            = IRQ_IXP4XX_UART1,
  82                 .flags          = UPF_BOOT_AUTOCONF | UPF_SKIP_TEST,
  83                 .iotype         = UPIO_MEM,
  84                 .regshift       = 2,
  85                 .uartclk        = IXP4XX_UART_XTAL,
  86         },
  87         {
  88                 .mapbase        = IXP4XX_UART2_BASE_PHYS,
  89                 .membase        = (char *)IXP4XX_UART2_BASE_VIRT + REG_OFFSET,
  90                 .irq            = IRQ_IXP4XX_UART2,
  91                 .flags          = UPF_BOOT_AUTOCONF | UPF_SKIP_TEST,
  92                 .iotype         = UPIO_MEM,
  93                 .regshift       = 2,
  94                 .uartclk        = IXP4XX_UART_XTAL,
  95         },
  96         { },
  97 };
  98
  99 static struct platform_device avila_uart = {
 100         .name                   = "serial8250",
 101         .id                     = PLAT8250_DEV_PLATFORM,
 102         .dev.platform_data      = avila_uart_data,
 103         .num_resources          = 2,
 104         .resource               = avila_uart_resources
 105 };
 106
 107 static struct resource avila_pata_resources[] = {
 108         {
 109                 .flags  = IORESOURCE_MEM
 110         },
 111         {
 112                 .flags  = IORESOURCE_MEM,
 113         },
 114         {
 115                 .name   = "intrq",
 116                 .start  = IRQ_IXP4XX_GPIO12,
 117                 .end    = IRQ_IXP4XX_GPIO12,
 118                 .flags  = IORESOURCE_IRQ,
 119         },
 120 };
 121
 122 static struct ixp4xx_pata_data avila_pata_data = {
 123         .cs0_bits       = 0xbfff0043,
 124         .cs1_bits       = 0xbfff0043,
 125 };
 126
 127 static struct platform_device avila_pata = {
 128         .name                   = "pata_ixp4xx_cf",
 129         .id                     = 0,
 130         .dev.platform_data      = &avila_pata_data,
 131         .num_resources          = ARRAY_SIZE(avila_pata_resources),
 132         .resource               = avila_pata_resources,
 133 };
 134
 135 static struct platform_device *avila_devices[] __initdata = {
 136         &avila_i2c_gpio,
 137         &avila_flash,
 138         &avila_uart
 139 };
 140
 141 static void __init avila_init(void)
 142 {
 143         ixp4xx_sys_init();
 144
 145         avila_flash_resource.start = IXP4XX_EXP_BUS_BASE(0);
 146         avila_flash_resource.end =
 147                 IXP4XX_EXP_BUS_BASE(0) + ixp4xx_exp_bus_size - 1;
 148
 149         platform_add_devices(avila_devices, ARRAY_SIZE(avila_devices));
 150
 151         avila_pata_resources[0].start = IXP4XX_EXP_BUS_BASE(1);
 152         avila_pata_resources[0].end = IXP4XX_EXP_BUS_END(1);
 153
 154         avila_pata_resources[1].start = IXP4XX_EXP_BUS_BASE(2);
 155         avila_pata_resources[1].end = IXP4XX_EXP_BUS_END(2);
 156
 157         avila_pata_data.cs0_cfg = IXP4XX_EXP_CS1;
 158         avila_pata_data.cs1_cfg = IXP4XX_EXP_CS2;
 159
 160         platform_device_register(&avila_pata);
 161
 162 }
 163
 164 MACHINE_START(AVILA, "Gateworks Avila Network Platform")
 165         /* Maintainer: Deepak Saxena <dsaxena@plexity.net> */
 166         .phys_io        = IXP4XX_PERIPHERAL_BASE_PHYS,
 167         .io_pg_offst    = ((IXP4XX_PERIPHERAL_BASE_VIRT) >> 18) & 0xfffc,
 168         .map_io         = ixp4xx_map_io,
 169         .init_irq       = ixp4xx_init_irq,
 170         .timer          = &ixp4xx_timer,
 171         .boot_params    = 0x0100,
 172         .init_machine   = avila_init,
 173 MACHINE_END
 174
 175  /*
 176   * Loft is functionally equivalent to Avila except that it has a
 177   * different number for the maximum PCI devices.  The MACHINE
 178   * structure below is identical to Avila except for the comment.
 179   */
 180 #ifdef CONFIG_MACH_LOFT
 181 MACHINE_START(LOFT, "Giant Shoulder Inc Loft board")
 182         /* Maintainer: Tom Billman <kernel@giantshoulderinc.com> */
 183         .phys_io        = IXP4XX_PERIPHERAL_BASE_PHYS,
 184         .io_pg_offst    = ((IXP4XX_PERIPHERAL_BASE_VIRT) >> 18) & 0xfffc,
 185         .map_io         = ixp4xx_map_io,
 186         .init_irq       = ixp4xx_init_irq,
 187         .timer          = &ixp4xx_timer,
 188         .boot_params    = 0x0100,
 189         .init_machine   = avila_init,
 190 MACHINE_END
 191 #endif
 192