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) 2003-2005 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_8250.h>
  17 #include <linux/slab.h>
  18
  19 #include <asm/types.h>
  20 #include <asm/setup.h>
  21 #include <asm/memory.h>
  22 #include <asm/hardware.h>
  23 #include <asm/irq.h>
  24 #include <asm/mach-types.h>
  25 #include <asm/mach/arch.h>
  26 #include <asm/mach/flash.h>
  27
  28 static struct flash_platform_data coyote_flash_data = {
  29         .map_name       = "cfi_probe",
  30         .width          = 2,
  31 };
  32
  33 static struct resource coyote_flash_resource = {
  34         .flags          = IORESOURCE_MEM,
  35 };
  36
  37 static struct platform_device coyote_flash = {
  38         .name           = "IXP4XX-Flash",
  39         .id             = 0,
  40         .dev            = {
  41                 .platform_data = &coyote_flash_data,
  42         },
  43         .num_resources  = 1,
  44         .resource       = &coyote_flash_resource,
  45 };
  46
  47 static struct resource coyote_uart_resource = {
  48         .start  = IXP4XX_UART2_BASE_PHYS,
  49         .end    = IXP4XX_UART2_BASE_PHYS + 0x0fff,
  50         .flags  = IORESOURCE_MEM,
  51 };
  52
  53 static struct plat_serial8250_port coyote_uart_data[] = {
  54         {
  55                 .mapbase        = IXP4XX_UART2_BASE_PHYS,
  56                 .membase        = (char *)IXP4XX_UART2_BASE_VIRT + REG_OFFSET,
  57                 .irq            = IRQ_IXP4XX_UART2,
  58                 .flags          = UPF_BOOT_AUTOCONF | UPF_SKIP_TEST,
  59                 .iotype         = UPIO_MEM,
  60                 .regshift       = 2,
  61                 .uartclk        = IXP4XX_UART_XTAL,
  62         },
  63         { },
  64 };
  65
  66 static struct platform_device coyote_uart = {
  67         .name           = "serial8250",
  68         .id             = PLAT8250_DEV_PLATFORM,
  69         .dev                    = {
  70                 .platform_data  = coyote_uart_data,
  71         },
  72         .num_resources  = 1,
  73         .resource       = &coyote_uart_resource,
  74 };
  75
  76 static struct platform_device *coyote_devices[] __initdata = {
  77         &coyote_flash,
  78         &coyote_uart
  79 };
  80
  81 static void __init coyote_init(void)
  82 {
  83         ixp4xx_sys_init();
  84
  85         coyote_flash_resource.start = IXP4XX_EXP_BUS_BASE(0);
  86         coyote_flash_resource.end = IXP4XX_EXP_BUS_BASE(0) + SZ_32M - 1;
  87
  88         *IXP4XX_EXP_CS0 |= IXP4XX_FLASH_WRITABLE;
  89         *IXP4XX_EXP_CS1 = *IXP4XX_EXP_CS0;
  90
  91         if (machine_is_ixdpg425()) {
  92                 coyote_uart_data[0].membase =
  93                         (char*)(IXP4XX_UART1_BASE_VIRT + REG_OFFSET);
  94                 coyote_uart_data[0].mapbase = IXP4XX_UART1_BASE_PHYS;
  95                 coyote_uart_data[0].irq = IRQ_IXP4XX_UART1;
  96         }
  97
  98         platform_add_devices(coyote_devices, ARRAY_SIZE(coyote_devices));
  99 }
 100
 101 #ifdef CONFIG_ARCH_ADI_COYOTE
 102 MACHINE_START(ADI_COYOTE, "ADI Engineering Coyote")
 103         /* Maintainer: MontaVista Software, Inc. */
 104         .phys_ram       = PHYS_OFFSET,
 105         .phys_io        = IXP4XX_PERIPHERAL_BASE_PHYS,
 106         .io_pg_offst    = ((IXP4XX_PERIPHERAL_BASE_VIRT) >> 18) & 0xfffc,
 107         .map_io         = ixp4xx_map_io,
 108         .init_irq       = ixp4xx_init_irq,
 109         .timer          = &ixp4xx_timer,
 110         .boot_params    = 0x0100,
 111         .init_machine   = coyote_init,
 112 MACHINE_END
 113 #endif
 114
 115 /*
 116  * IXDPG425 is identical to Coyote except for which serial port
 117  * is connected.
 118  */
 119 #ifdef CONFIG_MACH_IXDPG425
 120 MACHINE_START(IXDPG425, "Intel IXDPG425")
 121         /* Maintainer: MontaVista Software, Inc. */
 122         .phys_ram       = PHYS_OFFSET,
 123         .phys_io        = IXP4XX_PERIPHERAL_BASE_PHYS,
 124         .io_pg_offst    = ((IXP4XX_PERIPHERAL_BASE_VIRT) >> 18) & 0xfffc,
 125         .map_io         = ixp4xx_map_io,
 126         .init_irq       = ixp4xx_init_irq,
 127         .timer          = &ixp4xx_timer,
 128         .boot_params    = 0x0100,
 129         .init_machine   = coyote_init,
 130 MACHINE_END
 131 #endif
 132