coyote-setup.c

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/*
 * arch/arm/mach-ixp4xx/coyote-setup.c
 *
 * Board setup for ADI Engineering and IXDGP425 boards
 *
 * Copyright (C) 2003-2005 MontaVista Software, Inc.
 *
 * Author: Deepak Saxena <[email protected]>
 */

#include <linux/kernel.h>
#include <linux/init.h>
#include <linux/device.h>
#include <linux/serial.h>
#include <linux/tty.h>
#include <linux/serial_8250.h>

#include <asm/types.h>
#include <asm/setup.h>
#include <asm/memory.h>
#include <mach/hardware.h>
#include <asm/irq.h>
#include <asm/mach-types.h>
#include <asm/mach/arch.h>
#include <asm/mach/flash.h>

#define COYOTE_IDE_BASE_PHYS    IXP4XX_EXP_BUS_BASE(3)
#define COYOTE_IDE_BASE_VIRT    0xFFFE1000
#define COYOTE_IDE_REGION_SIZE  0x1000

#define COYOTE_IDE_DATA_PORT    0xFFFE10E0
#define COYOTE_IDE_CTRL_PORT    0xFFFE10FC
#define COYOTE_IDE_ERROR_PORT   0xFFFE10E2
#define IRQ_COYOTE_IDE      IRQ_IXP4XX_GPIO5

static struct flash_platform_data coyote_flash_data = {
    .map_name   = "cfi_probe",
    .width      = 2,
};

static struct resource coyote_flash_resource = {
    .flags      = IORESOURCE_MEM,
};

static struct platform_device coyote_flash = {
    .name       = "IXP4XX-Flash",
    .id     = 0,
    .dev        = {
        .platform_data = &coyote_flash_data,
    },
    .num_resources  = 1,
    .resource   = &coyote_flash_resource,
};

static struct resource coyote_uart_resource = {
    .start  = IXP4XX_UART2_BASE_PHYS,
    .end    = IXP4XX_UART2_BASE_PHYS + 0x0fff,
    .flags  = IORESOURCE_MEM,
};

static struct plat_serial8250_port coyote_uart_data[] = {
    {
        .mapbase    = IXP4XX_UART2_BASE_PHYS,
        .membase    = (char *)IXP4XX_UART2_BASE_VIRT + REG_OFFSET,
        .irq        = IRQ_IXP4XX_UART2,
        .flags      = UPF_BOOT_AUTOCONF | UPF_SKIP_TEST,
        .iotype     = UPIO_MEM,
        .regshift   = 2,
        .uartclk    = IXP4XX_UART_XTAL,
    },
    { },
};

static struct platform_device coyote_uart = {
    .name       = "serial8250",
    .id     = PLAT8250_DEV_PLATFORM,
    .dev            = {
        .platform_data  = coyote_uart_data,
    },
    .num_resources  = 1,
    .resource   = &coyote_uart_resource,
};

static struct platform_device *coyote_devices[] __initdata = {
    &coyote_flash,
    &coyote_uart
};

static void __init coyote_init(void)
{
    ixp4xx_sys_init();

    coyote_flash_resource.start = IXP4XX_EXP_BUS_BASE(0);
    coyote_flash_resource.end = IXP4XX_EXP_BUS_BASE(0) + SZ_32M - 1;

    *IXP4XX_EXP_CS0 |= IXP4XX_FLASH_WRITABLE;
    *IXP4XX_EXP_CS1 = *IXP4XX_EXP_CS0;

    if (machine_is_ixdpg425()) {
        coyote_uart_data[0].membase =
            (char*)(IXP4XX_UART1_BASE_VIRT + REG_OFFSET);
        coyote_uart_data[0].mapbase = IXP4XX_UART1_BASE_PHYS;
        coyote_uart_data[0].irq = IRQ_IXP4XX_UART1;
    }

    platform_add_devices(coyote_devices, ARRAY_SIZE(coyote_devices));
}

#ifdef CONFIG_ARCH_ADI_COYOTE
MACHINE_START(ADI_COYOTE, "ADI Engineering Coyote")
    /* Maintainer: MontaVista Software, Inc. */
    .map_io     = ixp4xx_map_io,
    .init_early = ixp4xx_init_early,
    .init_irq   = ixp4xx_init_irq,
    .timer      = &ixp4xx_timer,
    .atag_offset    = 0x100,
    .init_machine   = coyote_init,
#if defined(CONFIG_PCI)
    .dma_zone_size  = SZ_64M,
#endif
    .restart    = ixp4xx_restart,
MACHINE_END
#endif

/*
 * IXDPG425 is identical to Coyote except for which serial port
 * is connected.
 */
#ifdef CONFIG_MACH_IXDPG425
MACHINE_START(IXDPG425, "Intel IXDPG425")
    /* Maintainer: MontaVista Software, Inc. */
    .map_io     = ixp4xx_map_io,
    .init_early = ixp4xx_init_early,
    .init_irq   = ixp4xx_init_irq,
    .timer      = &ixp4xx_timer,
    .atag_offset    = 0x100,
    .init_machine   = coyote_init,
    .restart    = ixp4xx_restart,
MACHINE_END
#endif