isa.c

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/*
 *  linux/arch/arm/mach-footbridge/isa.c
 *
 *  Copyright (C) 2004 Russell King.
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License version 2 as
 * published by the Free Software Foundation.
 */
#include <linux/init.h>
#include <linux/serial_8250.h>

#include <asm/irq.h>
#include <asm/hardware/dec21285.h>

#include "common.h"

static struct resource rtc_resources[] = {
    [0] = {
        .start  = 0x70,
        .end    = 0x73,
        .flags  = IORESOURCE_IO,
    },
    [1] = {
        .start  = IRQ_ISA_RTC_ALARM,
        .end    = IRQ_ISA_RTC_ALARM,
        .flags  = IORESOURCE_IRQ,
    }
};

static struct platform_device rtc_device = {
    .name       = "rtc_cmos",
    .id     = -1,
    .resource   = rtc_resources,
    .num_resources  = ARRAY_SIZE(rtc_resources),
};

static struct resource serial_resources[] = {
    [0] = {
        .start  = 0x3f8,
        .end    = 0x3ff,
        .flags  = IORESOURCE_IO,
    },
    [1] = {
        .start  = 0x2f8,
        .end    = 0x2ff,
        .flags  = IORESOURCE_IO,
    },
};

static struct plat_serial8250_port serial_platform_data[] = {
    {
        .iobase     = 0x3f8,
        .irq        = IRQ_ISA_UART,
        .uartclk    = 1843200,
        .regshift   = 0,
        .iotype     = UPIO_PORT,
        .flags      = UPF_BOOT_AUTOCONF | UPF_SKIP_TEST,
    },
    {
        .iobase     = 0x2f8,
        .irq        = IRQ_ISA_UART2,
        .uartclk    = 1843200,
        .regshift   = 0,
        .iotype     = UPIO_PORT,
        .flags      = UPF_BOOT_AUTOCONF | UPF_SKIP_TEST,
    },
    { },
};

static struct platform_device serial_device = {
    .name           = "serial8250",
    .id         = PLAT8250_DEV_PLATFORM,
    .dev            = {
        .platform_data  = serial_platform_data,
    },
    .resource       = serial_resources,
    .num_resources      = ARRAY_SIZE(serial_resources),
};

static int __init footbridge_isa_init(void)
{
    int err = 0;

    if (!footbridge_cfn_mode())
        return 0;

    /* Personal server doesn't have RTC */
    if (!machine_is_personal_server()) {
        isa_rtc_init();
        err = platform_device_register(&rtc_device);
        if (err)
            printk(KERN_ERR "Unable to register RTC device: %d\n", err);
    }
    err = platform_device_register(&serial_device);
    if (err)
        printk(KERN_ERR "Unable to register serial device: %d\n", err);
    return 0;
}

arch_initcall(footbridge_isa_init);