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
  22 #include <asm/types.h>
  23 #include <asm/setup.h>
  24 #include <asm/memory.h>
  25 #include <asm/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 static struct flash_platform_data avila_flash_data = {
  32         .map_name       = "cfi_probe",
  33         .width          = 2,
  34 };
  35
  36 static struct resource avila_flash_resource = {
  37         .flags          = IORESOURCE_MEM,
  38 };
  39
  40 static struct platform_device avila_flash = {
  41         .name           = "IXP4XX-Flash",
  42         .id             = 0,
  43         .dev            = {
  44                 .platform_data = &avila_flash_data,
  45         },
  46         .num_resources  = 1,
  47         .resource       = &avila_flash_resource,
  48 };
  49
  50 static struct ixp4xx_i2c_pins avila_i2c_gpio_pins = {
  51         .sda_pin        = AVILA_SDA_PIN,
  52         .scl_pin        = AVILA_SCL_PIN,
  53 };
  54
  55 static struct platform_device avila_i2c_controller = {
  56         .name           = "IXP4XX-I2C",
  57         .id             = 0,
  58         .dev            = {
  59                 .platform_data = &avila_i2c_gpio_pins,
  60         },
  61         .num_resources  = 0
  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 platform_device *avila_devices[] __initdata = {
 108         &avila_i2c_controller,
 109         &avila_flash,
 110         &avila_uart
 111 };
 112
 113 static void __init avila_init(void)
 114 {
 115         ixp4xx_sys_init();
 116
 117         avila_flash_resource.start = IXP4XX_EXP_BUS_BASE(0);
 118         avila_flash_resource.end =
 119                 IXP4XX_EXP_BUS_BASE(0) + ixp4xx_exp_bus_size - 1;
 120
 121         platform_add_devices(avila_devices, ARRAY_SIZE(avila_devices));
 122 }
 123
 124 MACHINE_START(AVILA, "Gateworks Avila Network Platform")
 125         /* Maintainer: Deepak Saxena <dsaxena@plexity.net> */
 126         .phys_io        = IXP4XX_PERIPHERAL_BASE_PHYS,
 127         .io_pg_offst    = ((IXP4XX_PERIPHERAL_BASE_VIRT) >> 18) & 0xfffc,
 128         .map_io         = ixp4xx_map_io,
 129         .init_irq       = ixp4xx_init_irq,
 130         .timer          = &ixp4xx_timer,
 131         .boot_params    = 0x0100,
 132         .init_machine   = avila_init,
 133 MACHINE_END
 134
 135  /*
 136   * Loft is functionally equivalent to Avila except that it has a
 137   * different number for the maximum PCI devices.  The MACHINE
 138   * structure below is identical to Avila except for the comment.
 139   */
 140 #ifdef CONFIG_MACH_LOFT
 141 MACHINE_START(LOFT, "Giant Shoulder Inc Loft board")
 142         /* Maintainer: Tom Billman <kernel@giantshoulderinc.com> */
 143         .phys_io        = IXP4XX_PERIPHERAL_BASE_PHYS,
 144         .io_pg_offst    = ((IXP4XX_PERIPHERAL_BASE_VIRT) >> 18) & 0xfffc,
 145         .map_io         = ixp4xx_map_io,
 146         .init_irq       = ixp4xx_init_irq,
 147         .timer          = &ixp4xx_timer,
 148         .boot_params    = 0x0100,
 149         .init_machine   = avila_init,
 150 MACHINE_END
 151 #endif
 152