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 <mach/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 #define COYOTE_IDE_BASE_PHYS    IXP4XX_EXP_BUS_BASE(3)
  28 #define COYOTE_IDE_BASE_VIRT    0xFFFE1000
  29 #define COYOTE_IDE_REGION_SIZE  0x1000
  30
  31 #define COYOTE_IDE_DATA_PORT    0xFFFE10E0
  32 #define COYOTE_IDE_CTRL_PORT    0xFFFE10FC
  33 #define COYOTE_IDE_ERROR_PORT   0xFFFE10E2
  34 #define IRQ_COYOTE_IDE          IRQ_IXP4XX_GPIO5
  35
  36 static struct flash_platform_data coyote_flash_data = {
  37         .map_name       = "cfi_probe",
  38         .width          = 2,
  39 };
  40
  41 static struct resource coyote_flash_resource = {
  42         .flags          = IORESOURCE_MEM,
  43 };
  44
  45 static struct platform_device coyote_flash = {
  46         .name           = "IXP4XX-Flash",
  47         .id             = 0,
  48         .dev            = {
  49                 .platform_data = &coyote_flash_data,
  50         },
  51         .num_resources  = 1,
  52         .resource       = &coyote_flash_resource,
  53 };
  54
  55 static struct resource coyote_uart_resource = {
  56         .start  = IXP4XX_UART2_BASE_PHYS,
  57         .end    = IXP4XX_UART2_BASE_PHYS + 0x0fff,
  58         .flags  = IORESOURCE_MEM,
  59 };
  60
  61 static struct plat_serial8250_port coyote_uart_data[] = {
  62         {
  63                 .mapbase        = IXP4XX_UART2_BASE_PHYS,
  64                 .membase        = (char *)IXP4XX_UART2_BASE_VIRT + REG_OFFSET,
  65                 .irq            = IRQ_IXP4XX_UART2,
  66                 .flags          = UPF_BOOT_AUTOCONF | UPF_SKIP_TEST,
  67                 .iotype         = UPIO_MEM,
  68                 .regshift       = 2,
  69                 .uartclk        = IXP4XX_UART_XTAL,
  70         },
  71         { },
  72 };
  73
  74 static struct platform_device coyote_uart = {
  75         .name           = "serial8250",
  76         .id             = PLAT8250_DEV_PLATFORM,
  77         .dev                    = {
  78                 .platform_data  = coyote_uart_data,
  79         },
  80         .num_resources  = 1,
  81         .resource       = &coyote_uart_resource,
  82 };
  83
  84 static struct platform_device *coyote_devices[] __initdata = {
  85         &coyote_flash,
  86         &coyote_uart
  87 };
  88
  89 static void __init coyote_init(void)
  90 {
  91         ixp4xx_sys_init();
  92
  93         coyote_flash_resource.start = IXP4XX_EXP_BUS_BASE(0);
  94         coyote_flash_resource.end = IXP4XX_EXP_BUS_BASE(0) + SZ_32M - 1;
  95
  96         *IXP4XX_EXP_CS0 |= IXP4XX_FLASH_WRITABLE;
  97         *IXP4XX_EXP_CS1 = *IXP4XX_EXP_CS0;
  98
  99         if (machine_is_ixdpg425()) {
 100                 coyote_uart_data[0].membase =
 101                         (char*)(IXP4XX_UART1_BASE_VIRT + REG_OFFSET);
 102                 coyote_uart_data[0].mapbase = IXP4XX_UART1_BASE_PHYS;
 103                 coyote_uart_data[0].irq = IRQ_IXP4XX_UART1;
 104         }
 105
 106         platform_add_devices(coyote_devices, ARRAY_SIZE(coyote_devices));
 107 }
 108
 109 #ifdef CONFIG_ARCH_ADI_COYOTE
 110 MACHINE_START(ADI_COYOTE, "ADI Engineering Coyote")
 111         /* Maintainer: MontaVista Software, Inc. */
 112         .map_io         = ixp4xx_map_io,
 113         .init_early     = ixp4xx_init_early,
 114         .init_irq       = ixp4xx_init_irq,
 115         .timer          = &ixp4xx_timer,
 116         .atag_offset    = 0x100,
 117         .init_machine   = coyote_init,
 118 #if defined(CONFIG_PCI)
 119         .dma_zone_size  = SZ_64M,
 120 #endif
 121         .restart        = ixp4xx_restart,
 122 MACHINE_END
 123 #endif
 124
 125 /*
 126  * IXDPG425 is identical to Coyote except for which serial port
 127  * is connected.
 128  */
 129 #ifdef CONFIG_MACH_IXDPG425
 130 MACHINE_START(IXDPG425, "Intel IXDPG425")
 131         /* Maintainer: MontaVista Software, Inc. */
 132         .map_io         = ixp4xx_map_io,
 133         .init_early     = ixp4xx_init_early,
 134         .init_irq       = ixp4xx_init_irq,
 135         .timer          = &ixp4xx_timer,
 136         .atag_offset    = 0x100,
 137         .init_machine   = coyote_init,
 138         .restart        = ixp4xx_restart,
 139 MACHINE_END
 140 #endif
 141