LXR linux/drivers/serial/8250

   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/*
  17 * FIXME: Should we be doing AUTO_IRQ here?
  18 */
  19#ifdef CONFIG_SERIAL_8250_DETECT_IRQ
  20#define MCA_FLAGS       UPF_BOOT_AUTOCONF | UPF_SKIP_TEST | UPF_AUTO_IRQ
  21#else
  22#define MCA_FLAGS       UPF_BOOT_AUTOCONF | UPF_SKIP_TEST
  23#endif
  24
  25#define PORT(_base,_irq)                        \
  26        {                                       \
  27                .iobase         = _base,        \
  28                .irq            = _irq,         \
  29                .uartclk        = 1843200,      \
  30                .iotype         = UPIO_PORT,    \
  31                .flags          = MCA_FLAGS,    \
  32        }
  33
  34static struct plat_serial8250_port mca_data[] = {
  35        PORT(0x3220, 3),
  36        PORT(0x3228, 3),
  37        PORT(0x4220, 3),
  38        PORT(0x4228, 3),
  39        PORT(0x5220, 3),
  40        PORT(0x5228, 3),
  41        { },
  42};
  43
  44static struct platform_device mca_device = {
  45        .name                   = "serial8250",
  46        .id                     = PLAT8250_DEV_MCA,
  47        .dev                    = {
  48                .platform_data  = mca_data,
  49        },
  50};
  51
  52static int __init mca_init(void)
  53{
  54        if (!MCA_bus)
  55                return -ENODEV;
  56        return platform_device_register(&mca_device);
  57}
  58
  59module_init(mca_init);
  60
  61MODULE_AUTHOR("Russell King");
  62MODULE_DESCRIPTION("8250 serial probe module for MCA ports");
  63MODULE_LICENSE("GPL");
  64