LXR linux/arch/arm/mach-footbridge/isa.c

   1/*
   2 *  linux/arch/arm/mach-footbridge/isa.c
   3 *
   4 *  Copyright (C) 2004 Russell King.
   5 *
   6 * This program is free software; you can redistribute it and/or modify
   7 * it under the terms of the GNU General Public License version 2 as
   8 * published by the Free Software Foundation.
   9 */
  10#include <linux/init.h>
  11#include <linux/serial_8250.h>
  12
  13#include <asm/irq.h>
  14#include <asm/hardware/dec21285.h>
  15
  16#include "common.h"
  17
  18static struct resource rtc_resources[] = {
  19        [0] = {
  20                .start  = 0x70,
  21                .end    = 0x73,
  22                .flags  = IORESOURCE_IO,
  23        },
  24        [1] = {
  25                .start  = IRQ_ISA_RTC_ALARM,
  26                .end    = IRQ_ISA_RTC_ALARM,
  27                .flags  = IORESOURCE_IRQ,
  28        }
  29};
  30
  31static struct platform_device rtc_device = {
  32        .name           = "rtc_cmos",
  33        .id             = -1,
  34        .resource       = rtc_resources,
  35        .num_resources  = ARRAY_SIZE(rtc_resources),
  36};
  37
  38static struct resource serial_resources[] = {
  39        [0] = {
  40                .start  = 0x3f8,
  41                .end    = 0x3ff,
  42                .flags  = IORESOURCE_IO,
  43        },
  44        [1] = {
  45                .start  = 0x2f8,
  46                .end    = 0x2ff,
  47                .flags  = IORESOURCE_IO,
  48        },
  49};
  50
  51static struct plat_serial8250_port serial_platform_data[] = {
  52        {
  53                .iobase         = 0x3f8,
  54                .irq            = IRQ_ISA_UART,
  55                .uartclk        = 1843200,
  56                .regshift       = 0,
  57                .iotype         = UPIO_PORT,
  58                .flags          = UPF_BOOT_AUTOCONF | UPF_SKIP_TEST,
  59        },
  60        {
  61                .iobase         = 0x2f8,
  62                .irq            = IRQ_ISA_UART2,
  63                .uartclk        = 1843200,
  64                .regshift       = 0,
  65                .iotype         = UPIO_PORT,
  66                .flags          = UPF_BOOT_AUTOCONF | UPF_SKIP_TEST,
  67        },
  68        { },
  69};
  70
  71static struct platform_device serial_device = {
  72        .name                   = "serial8250",
  73        .id                     = PLAT8250_DEV_PLATFORM,
  74        .dev                    = {
  75                .platform_data  = serial_platform_data,
  76        },
  77        .resource               = serial_resources,
  78        .num_resources          = ARRAY_SIZE(serial_resources),
  79};
  80
  81static int __init footbridge_isa_init(void)
  82{
  83        int err = 0;
  84
  85        if (!footbridge_cfn_mode())
  86                return 0;
  87
  88        /* Personal server doesn't have RTC */
  89        if (!machine_is_personal_server()) {
  90                isa_rtc_init();
  91                err = platform_device_register(&rtc_device);
  92                if (err)
  93                        printk(KERN_ERR "Unable to register RTC device: %d\n", err);
  94        }
  95        err = platform_device_register(&serial_device);
  96        if (err)
  97                printk(KERN_ERR "Unable to register serial device: %d\n", err);
  98        return 0;
  99}
 100
 101arch_initcall(footbridge_isa_init);
 102