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