release/src-rt-6.x.4708/linux/linux-2.6.36/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/module.h>
  12 #include <linux/init.h>
  13 #include <linux/mca.h>
  14 #include <linux/serial_8250.h>
  15
  16 #ifdef CONFIG_SERIAL_8250_DETECT_IRQ
  17 #define MCA_FLAGS       UPF_BOOT_AUTOCONF | UPF_SKIP_TEST | UPF_AUTO_IRQ
  18 #else
  19 #define MCA_FLAGS       UPF_BOOT_AUTOCONF | UPF_SKIP_TEST
  20 #endif
  21
  22 #define PORT(_base,_irq)                        \
  23         {                                       \
  24                 .iobase         = _base,        \
  25                 .irq            = _irq,         \
  26                 .uartclk        = 1843200,      \
  27                 .iotype         = UPIO_PORT,    \
  28                 .flags          = MCA_FLAGS,    \
  29         }
  30
  31 static struct plat_serial8250_port mca_data[] = {
  32         PORT(0x3220, 3),
  33         PORT(0x3228, 3),
  34         PORT(0x4220, 3),
  35         PORT(0x4228, 3),
  36         PORT(0x5220, 3),
  37         PORT(0x5228, 3),
  38         { },
  39 };
  40
  41 static struct platform_device mca_device = {
  42         .name                   = "serial8250",
  43         .id                     = PLAT8250_DEV_MCA,
  44         .dev                    = {
  45                 .platform_data  = mca_data,
  46         },
  47 };
  48
  49 static int __init mca_init(void)
  50 {
  51         if (!MCA_bus)
  52                 return -ENODEV;
  53         return platform_device_register(&mca_device);
  54 }
  55
  56 module_init(mca_init);
  57
  58 MODULE_AUTHOR("Russell King");
  59 MODULE_DESCRIPTION("8250 serial probe module for MCA ports");
  60 MODULE_LICENSE("GPL");