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
  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 void __init coyote_map_io(void)
  28 {
  29         ixp4xx_map_io();
  30 }
  31
  32 static struct flash_platform_data coyote_flash_data = {
  33         .map_name       = "cfi_probe",
  34         .width          = 2,
  35 };
  36
  37 static struct resource coyote_flash_resource = {
  38         .start          = COYOTE_FLASH_BASE,
  39         .end            = COYOTE_FLASH_BASE + COYOTE_FLASH_SIZE,
  40         .flags          = IORESOURCE_MEM,
  41 };
  42
  43 static struct platform_device coyote_flash = {
  44         .name           = "IXP4XX-Flash",
  45         .id             = 0,
  46         .dev            = {
  47                 .platform_data = &coyote_flash_data,
  48         },
  49         .num_resources  = 1,
  50         .resource       = &coyote_flash_resource,
  51 };
  52
  53 static struct resource coyote_uart_resource = {
  54         .start  = IXP4XX_UART2_BASE_PHYS,
  55         .end    = IXP4XX_UART2_BASE_PHYS + 0x0fff,
  56         .flags  = IORESOURCE_MEM,
  57 };
  58
  59 static struct plat_serial8250_port coyote_uart_data[] = {
  60         {
  61                 .mapbase        = IXP4XX_UART2_BASE_PHYS,
  62                 .membase        = (char *)IXP4XX_UART2_BASE_VIRT + REG_OFFSET,
  63                 .irq            = IRQ_IXP4XX_UART2,
  64                 .flags          = UPF_BOOT_AUTOCONF,
  65                 .iotype         = UPIO_MEM,
  66                 .regshift       = 2,
  67                 .uartclk        = IXP4XX_UART_XTAL,
  68         },
  69         { },
  70 };
  71
  72 static struct platform_device coyote_uart = {
  73         .name           = "serial8250",
  74         .id             = 0,
  75         .dev                    = {
  76                 .platform_data  = coyote_uart_data,
  77         },
  78         .num_resources  = 1,
  79         .resource       = &coyote_uart_resource,
  80 };
  81
  82 static struct platform_device *coyote_devices[] __initdata = {
  83         &coyote_flash,
  84         &coyote_uart
  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         if (machine_is_ixdpg425()) {
  93                 coyote_uart_data[0].membase =
  94                         (char*)(IXP4XX_UART1_BASE_VIRT + REG_OFFSET);
  95                 coyote_uart_data[0].mapbase = IXP4XX_UART1_BASE_PHYS;
  96                 coyote_uart_data[0].irq = IRQ_IXP4XX_UART1;
  97         }
  98
  99
 100         ixp4xx_sys_init();
 101         platform_add_devices(coyote_devices, ARRAY_SIZE(coyote_devices));
 102 }
 103
 104 #ifdef CONFIG_ARCH_ADI_COYOTE
 105 MACHINE_START(ADI_COYOTE, "ADI Engineering Coyote")
 106         /* Maintainer: MontaVista Software, Inc. */
 107         .phys_ram       = PHYS_OFFSET,
 108         .phys_io        = IXP4XX_PERIPHERAL_BASE_PHYS,
 109         .io_pg_offst    = ((IXP4XX_PERIPHERAL_BASE_VIRT) >> 18) & 0xfffc,
 110         .map_io         = coyote_map_io,
 111         .init_irq       = ixp4xx_init_irq,
 112         .timer          = &ixp4xx_timer,
 113         .boot_params    = 0x0100,
 114         .init_machine   = coyote_init,
 115 MACHINE_END
 116 #endif
 117
 118 /*
 119  * IXDPG425 is identical to Coyote except for which serial port
 120  * is connected.
 121  */
 122 #ifdef CONFIG_MACH_IXDPG425
 123 MACHINE_START(IXDPG425, "Intel IXDPG425")
 124         /* Maintainer: MontaVista Software, Inc. */
 125         .phys_ram       = PHYS_OFFSET,
 126         .phys_io        = IXP4XX_PERIPHERAL_BASE_PHYS,
 127         .io_pg_offst    = ((IXP4XX_PERIPHERAL_BASE_VIRT) >> 18) & 0xfffc,
 128         .map_io         = coyote_map_io,
 129         .init_irq       = ixp4xx_init_irq,
 130         .timer          = &ixp4xx_timer,
 131         .boot_params    = 0x0100,
 132         .init_machine   = coyote_init,
 133 MACHINE_END
 134 #endif
 135