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isa.c

/*
 *  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);

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