arch/arm/mach-ixp4xx/coyote-setup.c

   1 /*
   2  * arch/arm/mach-ixp4xx/coyote-setup.c
   3  *
   4  * Board setup for ADI Engineering and IXDGP425 boards
   5  *
   6  * Copyright (C) 2003-2004 MontaVista Software, Inc.
   7  *
   8  * Author: Deepak Saxena <dsaxena@plexity.net>
   9  */
  10
  11 #include <linux/kernel.h>
  12 #include <linux/init.h>
  13 #include <linux/device.h>
  14 #include <linux/serial.h>
  15 #include <linux/tty.h>
  16 #include <linux/serial_core.h>
  17
  18 #include <asm/types.h>
  19 #include <asm/setup.h>
  20 #include <asm/memory.h>
  21 #include <asm/hardware.h>
  22 #include <asm/irq.h>
  23 #include <asm/mach-types.h>
  24 #include <asm/mach/arch.h>
  25 #include <asm/mach/flash.h>
  26
  27 #ifdef  __ARMEB__
  28 #define REG_OFFSET      3
  29 #else
  30 #define REG_OFFSET      0
  31 #endif
  32
  33 /*
  34  * Only one serial port is connected on the Coyote & IXDPG425
  35  */
  36 static struct uart_port coyote_serial_port = {
  37         .membase        = (char*)(IXP4XX_UART2_BASE_VIRT + REG_OFFSET),
  38         .mapbase        = (IXP4XX_UART2_BASE_PHYS),
  39         .irq            = IRQ_IXP4XX_UART2,
  40         .flags          = UPF_SKIP_TEST,
  41         .iotype         = UPIO_MEM,
  42         .regshift       = 2,
  43         .uartclk        = IXP4XX_UART_XTAL,
  44         .line           = 0,
  45         .type           = PORT_XSCALE,
  46         .fifosize       = 32
  47 };
  48
  49 void __init coyote_map_io(void)
  50 {
  51         if (machine_is_ixdpg425()) {
  52                 coyote_serial_port.membase =
  53                         (char*)(IXP4XX_UART1_BASE_VIRT + REG_OFFSET);
  54                 coyote_serial_port.mapbase = IXP4XX_UART1_BASE_PHYS;
  55                 coyote_serial_port.irq = IRQ_IXP4XX_UART1;
  56         }
  57
  58         early_serial_setup(&coyote_serial_port);
  59
  60         ixp4xx_map_io();
  61 }
  62
  63 static struct flash_platform_data coyote_flash_data = {
  64         .map_name       = "cfi_probe",
  65         .width          = 2,
  66 };
  67
  68 static struct resource coyote_flash_resource = {
  69         .start          = COYOTE_FLASH_BASE,
  70         .end            = COYOTE_FLASH_BASE + COYOTE_FLASH_SIZE,
  71         .flags          = IORESOURCE_MEM,
  72 };
  73
  74 static struct platform_device coyote_flash = {
  75         .name           = "IXP4XX-Flash",
  76         .id             = 0,
  77         .dev            = {
  78                 .platform_data = &coyote_flash_data,
  79         },
  80         .num_resources  = 1,
  81         .resource       = &coyote_flash_resource,
  82 };
  83
  84 static struct platform_device *coyote_devices[] __initdata = {
  85         &coyote_flash
  86 };
  87
  88 static void __init coyote_init(void)
  89 {
  90         *IXP4XX_EXP_CS0 |= IXP4XX_FLASH_WRITABLE;
  91         *IXP4XX_EXP_CS1 = *IXP4XX_EXP_CS0;
  92
  93         ixp4xx_sys_init();
  94         platform_add_devices(coyote_devices, ARRAY_SIZE(coyote_devices));
  95 }
  96
  97 #ifdef CONFIG_ARCH_ADI_COYOTE
  98 MACHINE_START(ADI_COYOTE, "ADI Engineering Coyote")
  99         MAINTAINER("MontaVista Software, Inc.")
 100         BOOT_MEM(PHYS_OFFSET, IXP4XX_PERIPHERAL_BASE_PHYS,
 101                 IXP4XX_PERIPHERAL_BASE_VIRT)
 102         MAPIO(coyote_map_io)
 103         INITIRQ(ixp4xx_init_irq)
 104         .timer          = &ixp4xx_timer,
 105         BOOT_PARAMS(0x0100)
 106         INIT_MACHINE(coyote_init)
 107 MACHINE_END
 108 #endif
 109
 110 /*
 111  * IXDPG425 is identical to Coyote except for which serial port
 112  * is connected.
 113  */
 114 #ifdef CONFIG_MACH_IXDPG425
 115 MACHINE_START(IXDPG425, "Intel IXDPG425")
 116         MAINTAINER("MontaVista Software, Inc.")
 117         BOOT_MEM(PHYS_OFFSET, IXP4XX_PERIPHERAL_BASE_PHYS,
 118                 IXP4XX_PERIPHERAL_BASE_VIRT)
 119         MAPIO(coyote_map_io)
 120         INITIRQ(ixp4xx_init_irq)
 121         .timer          = &ixp4xx_timer,
 122         BOOT_PARAMS(0x0100)
 123         INIT_MACHINE(coyote_init)
 124 MACHINE_END
 125 #endif
 126