drivers/serial/8250_mca.c

   1 /*
   2  *  linux/drivers/serial/8250_mca.c
   3  *
   4  *  Copyright (C) 2005 Russell King.
   5  *  Data taken from include/asm-i386/serial.h
   6  *
   7  * This program is free software; you can redistribute it and/or modify
   8  * it under the terms of the GNU General Public License version 2 as
   9  * published by the Free Software Foundation.
  10  */
  11 #include <linux/config.h>
  12 #include <linux/module.h>
  13 #include <linux/init.h>
  14 #include <linux/mca.h>
  15 #include <linux/serial_8250.h>
  16
  17 /*
  18  * FIXME: Should we be doing AUTO_IRQ here?
  19  */
  20 #ifdef CONFIG_SERIAL_8250_DETECT_IRQ
  21 #define MCA_FLAGS       UPF_BOOT_AUTOCONF | UPF_SKIP_TEST | UPF_AUTO_IRQ
  22 #else
  23 #define MCA_FLAGS       UPF_BOOT_AUTOCONF | UPF_SKIP_TEST
  24 #endif
  25
  26 #define PORT(_base,_irq)                        \
  27         {                                       \
  28                 .iobase         = _base,        \
  29                 .irq            = _irq,         \
  30                 .uartclk        = 1843200,      \
  31                 .iotype         = UPIO_PORT,    \
  32                 .flags          = MCA_FLAGS,    \
  33         }
  34
  35 static struct plat_serial8250_port mca_data[] = {
  36         PORT(0x3220, 3),
  37         PORT(0x3228, 3),
  38         PORT(0x4220, 3),
  39         PORT(0x4228, 3),
  40         PORT(0x5220, 3),
  41         PORT(0x5228, 3),
  42         { },
  43 };
  44
  45 static struct platform_device mca_device = {
  46         .name                   = "serial8250",
  47         .id                     = PLAT8250_DEV_MCA,
  48         .dev                    = {
  49                 .platform_data  = mca_data,
  50         },
  51 };
  52
  53 static int __init mca_init(void)
  54 {
  55         if (!MCA_bus)
  56                 return -ENODEV;
  57         return platform_device_register(&mca_device);
  58 }
  59
  60 module_init(mca_init);
  61
  62 MODULE_AUTHOR("Russell King");
  63 MODULE_DESCRIPTION("8250 serial probe module for MCA ports");
  64 MODULE_LICENSE("GPL");