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
  18 static 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
  31 static 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
  38 static 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
  51 static 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
  71 static 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
  81 static 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
 101 arch_initcall(footbridge_isa_init);