release/src-rt-6.x.4708/linux/linux-2.6.36/arch/arm/mach-ixp4xx/wg302v2-setup.c

   1 /*
   2  * arch/arm/mach-ixp4xx/wg302-setup.c
   3  *
   4  * Board setup for the Netgear WG302 v2 and WAG302 v2
   5  *
   6  * Copyright (C) 2007 Imre Kaloz <Kaloz@openwrt.org>
   7  *
   8  * based on coyote-setup.c:
   9  *      Copyright (C) 2003-2005 MontaVista Software, Inc.
  10  *
  11  * Author: Imre Kaloz <kaloz@openwrt.org>
  12  *
  13  */
  14
  15 #include <linux/kernel.h>
  16 #include <linux/init.h>
  17 #include <linux/device.h>
  18 #include <linux/serial.h>
  19 #include <linux/tty.h>
  20 #include <linux/serial_8250.h>
  21
  22 #include <asm/types.h>
  23 #include <asm/setup.h>
  24 #include <asm/memory.h>
  25 #include <mach/hardware.h>
  26 #include <asm/irq.h>
  27 #include <asm/mach-types.h>
  28 #include <asm/mach/arch.h>
  29 #include <asm/mach/flash.h>
  30
  31 static struct flash_platform_data wg302v2_flash_data = {
  32         .map_name       = "cfi_probe",
  33         .width          = 2,
  34 };
  35
  36 static struct resource wg302v2_flash_resource = {
  37         .flags          = IORESOURCE_MEM,
  38 };
  39
  40 static struct platform_device wg302v2_flash = {
  41         .name           = "IXP4XX-Flash",
  42         .id             = 0,
  43         .dev            = {
  44                 .platform_data = &wg302v2_flash_data,
  45         },
  46         .num_resources  = 1,
  47         .resource       = &wg302v2_flash_resource,
  48 };
  49
  50 static struct resource wg302v2_uart_resource = {
  51         .start  = IXP4XX_UART2_BASE_PHYS,
  52         .end    = IXP4XX_UART2_BASE_PHYS + 0x0fff,
  53         .flags  = IORESOURCE_MEM,
  54 };
  55
  56 static struct plat_serial8250_port wg302v2_uart_data[] = {
  57         {
  58                 .mapbase        = IXP4XX_UART2_BASE_PHYS,
  59                 .membase        = (char *)IXP4XX_UART2_BASE_VIRT + REG_OFFSET,
  60                 .irq            = IRQ_IXP4XX_UART2,
  61                 .flags          = UPF_BOOT_AUTOCONF | UPF_SKIP_TEST,
  62                 .iotype         = UPIO_MEM,
  63                 .regshift       = 2,
  64                 .uartclk        = IXP4XX_UART_XTAL,
  65         },
  66         { },
  67 };
  68
  69 static struct platform_device wg302v2_uart = {
  70         .name           = "serial8250",
  71         .id             = PLAT8250_DEV_PLATFORM,
  72         .dev                    = {
  73                 .platform_data  = wg302v2_uart_data,
  74         },
  75         .num_resources  = 1,
  76         .resource       = &wg302v2_uart_resource,
  77 };
  78
  79 static struct platform_device *wg302v2_devices[] __initdata = {
  80         &wg302v2_flash,
  81         &wg302v2_uart,
  82 };
  83
  84 static void __init wg302v2_init(void)
  85 {
  86         ixp4xx_sys_init();
  87
  88         wg302v2_flash_resource.start = IXP4XX_EXP_BUS_BASE(0);
  89         wg302v2_flash_resource.end = IXP4XX_EXP_BUS_BASE(0) + SZ_32M - 1;
  90
  91         *IXP4XX_EXP_CS0 |= IXP4XX_FLASH_WRITABLE;
  92         *IXP4XX_EXP_CS1 = *IXP4XX_EXP_CS0;
  93
  94         platform_add_devices(wg302v2_devices, ARRAY_SIZE(wg302v2_devices));
  95 }
  96
  97 #ifdef CONFIG_MACH_WG302V2
  98 MACHINE_START(WG302V2, "Netgear WG302 v2 / WAG302 v2")
  99         /* Maintainer: Imre Kaloz <kaloz@openwrt.org> */
 100         .phys_io        = IXP4XX_PERIPHERAL_BASE_PHYS,
 101         .io_pg_offst    = ((IXP4XX_PERIPHERAL_BASE_VIRT) >> 18) & 0xfffc,
 102         .map_io         = ixp4xx_map_io,
 103         .init_irq       = ixp4xx_init_irq,
 104         .timer          = &ixp4xx_timer,
 105         .boot_params    = 0x0100,
 106         .init_machine   = wg302v2_init,
 107 MACHINE_END
 108 #endif