drivers/tty/serial/8250_mca.c

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