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 #include <asm/types.h>
  23 #include <asm/setup.h>
  24 #include <asm/memory.h>
  25 #include <mach/hardware.h>
  26 #include <asm/mach-types.h>
  27 #include <asm/irq.h>
  28 #include <asm/mach/arch.h>
  29 #include <asm/mach/flash.h>
  30
  31 #define AVILA_SDA_PIN   7
  32 #define AVILA_SCL_PIN   6
  33
  34 static struct flash_platform_data avila_flash_data = {
  35         .map_name       = "cfi_probe",
  36         .width          = 2,
  37 };
  38
  39 static struct resource avila_flash_resource = {
  40         .flags          = IORESOURCE_MEM,
  41 };
  42
  43 static struct platform_device avila_flash = {
  44         .name           = "IXP4XX-Flash",
  45         .id             = 0,
  46         .dev            = {
  47                 .platform_data = &avila_flash_data,
  48         },
  49         .num_resources  = 1,
  50         .resource       = &avila_flash_resource,
  51 };
  52
  53 static struct i2c_gpio_platform_data avila_i2c_gpio_data = {
  54         .sda_pin        = AVILA_SDA_PIN,
  55         .scl_pin        = AVILA_SCL_PIN,
  56 };
  57
  58 static struct platform_device avila_i2c_gpio = {
  59         .name           = "i2c-gpio",
  60         .id             = 0,
  61         .dev     = {
  62                 .platform_data  = &avila_i2c_gpio_data,
  63         },
  64 };
  65
  66 static struct resource avila_uart_resources[] = {
  67         {
  68                 .start          = IXP4XX_UART1_BASE_PHYS,
  69                 .end            = IXP4XX_UART1_BASE_PHYS + 0x0fff,
  70                 .flags          = IORESOURCE_MEM
  71         },
  72         {
  73                 .start          = IXP4XX_UART2_BASE_PHYS,
  74                 .end            = IXP4XX_UART2_BASE_PHYS + 0x0fff,
  75                 .flags          = IORESOURCE_MEM
  76         }
  77 };
  78
  79 static struct plat_serial8250_port avila_uart_data[] = {
  80         {
  81                 .mapbase        = IXP4XX_UART1_BASE_PHYS,
  82                 .membase        = (char *)IXP4XX_UART1_BASE_VIRT + REG_OFFSET,
  83                 .irq            = IRQ_IXP4XX_UART1,
  84                 .flags          = UPF_BOOT_AUTOCONF | UPF_SKIP_TEST,
  85                 .iotype         = UPIO_MEM,
  86                 .regshift       = 2,
  87                 .uartclk        = IXP4XX_UART_XTAL,
  88         },
  89         {
  90                 .mapbase        = IXP4XX_UART2_BASE_PHYS,
  91                 .membase        = (char *)IXP4XX_UART2_BASE_VIRT + REG_OFFSET,
  92                 .irq            = IRQ_IXP4XX_UART2,
  93                 .flags          = UPF_BOOT_AUTOCONF | UPF_SKIP_TEST,
  94                 .iotype         = UPIO_MEM,
  95                 .regshift       = 2,
  96                 .uartclk        = IXP4XX_UART_XTAL,
  97         },
  98         { },
  99 };
 100
 101 static struct platform_device avila_uart = {
 102         .name                   = "serial8250",
 103         .id                     = PLAT8250_DEV_PLATFORM,
 104         .dev.platform_data      = avila_uart_data,
 105         .num_resources          = 2,
 106         .resource               = avila_uart_resources
 107 };
 108
 109 static struct resource avila_pata_resources[] = {
 110         {
 111                 .flags  = IORESOURCE_MEM
 112         },
 113         {
 114                 .flags  = IORESOURCE_MEM,
 115         },
 116         {
 117                 .name   = "intrq",
 118                 .start  = IRQ_IXP4XX_GPIO12,
 119                 .end    = IRQ_IXP4XX_GPIO12,
 120                 .flags  = IORESOURCE_IRQ,
 121         },
 122 };
 123
 124 static struct ixp4xx_pata_data avila_pata_data = {
 125         .cs0_bits       = 0xbfff0043,
 126         .cs1_bits       = 0xbfff0043,
 127 };
 128
 129 static struct platform_device avila_pata = {
 130         .name                   = "pata_ixp4xx_cf",
 131         .id                     = 0,
 132         .dev.platform_data      = &avila_pata_data,
 133         .num_resources          = ARRAY_SIZE(avila_pata_resources),
 134         .resource               = avila_pata_resources,
 135 };
 136
 137 static struct platform_device *avila_devices[] __initdata = {
 138         &avila_i2c_gpio,
 139         &avila_flash,
 140         &avila_uart
 141 };
 142
 143 static void __init avila_init(void)
 144 {
 145         ixp4xx_sys_init();
 146
 147         avila_flash_resource.start = IXP4XX_EXP_BUS_BASE(0);
 148         avila_flash_resource.end =
 149                 IXP4XX_EXP_BUS_BASE(0) + ixp4xx_exp_bus_size - 1;
 150
 151         platform_add_devices(avila_devices, ARRAY_SIZE(avila_devices));
 152
 153         avila_pata_resources[0].start = IXP4XX_EXP_BUS_BASE(1);
 154         avila_pata_resources[0].end = IXP4XX_EXP_BUS_END(1);
 155
 156         avila_pata_resources[1].start = IXP4XX_EXP_BUS_BASE(2);
 157         avila_pata_resources[1].end = IXP4XX_EXP_BUS_END(2);
 158
 159         avila_pata_data.cs0_cfg = IXP4XX_EXP_CS1;
 160         avila_pata_data.cs1_cfg = IXP4XX_EXP_CS2;
 161
 162         platform_device_register(&avila_pata);
 163
 164 }
 165
 166 MACHINE_START(AVILA, "Gateworks Avila Network Platform")
 167         /* Maintainer: Deepak Saxena <dsaxena@plexity.net> */
 168         .phys_io        = IXP4XX_PERIPHERAL_BASE_PHYS,
 169         .io_pg_offst    = ((IXP4XX_PERIPHERAL_BASE_VIRT) >> 18) & 0xfffc,
 170         .map_io         = ixp4xx_map_io,
 171         .init_irq       = ixp4xx_init_irq,
 172         .timer          = &ixp4xx_timer,
 173         .boot_params    = 0x0100,
 174         .init_machine   = avila_init,
 175 MACHINE_END
 176
 177  /*
 178   * Loft is functionally equivalent to Avila except that it has a
 179   * different number for the maximum PCI devices.  The MACHINE
 180   * structure below is identical to Avila except for the comment.
 181   */
 182 #ifdef CONFIG_MACH_LOFT
 183 MACHINE_START(LOFT, "Giant Shoulder Inc Loft board")
 184         /* Maintainer: Tom Billman <kernel@giantshoulderinc.com> */
 185         .phys_io        = IXP4XX_PERIPHERAL_BASE_PHYS,
 186         .io_pg_offst    = ((IXP4XX_PERIPHERAL_BASE_VIRT) >> 18) & 0xfffc,
 187         .map_io         = ixp4xx_map_io,
 188         .init_irq       = ixp4xx_init_irq,
 189         .timer          = &ixp4xx_timer,
 190         .boot_params    = 0x0100,
 191         .init_machine   = avila_init,
 192 MACHINE_END
 193 #endif
 194