arch/mips/gt64120/momenco_ocelot/ocelot-platform.c

   1 /*
   2  * This file is subject to the terms and conditions of the GNU General Public
   3  * License.  See the file "COPYING" in the main directory of this archive
   4  * for more details.
   5  *
   6  * Copyright (C) 2007 Ralf Baechle (ralf@linux-mips.org)
   7  *
   8  * A NS16552 DUART with a 20MHz crystal.
   9  *
  10  */
  11 #include <linux/module.h>
  12 #include <linux/init.h>
  13 #include <linux/serial_8250.h>
  14
  15 #define OCELOT_UART_FLAGS (UPF_BOOT_AUTOCONF | UPF_SKIP_TEST | UPF_IOREMAP)
  16
  17 static struct plat_serial8250_port uart8250_data[] = {
  18         {
  19                 .mapbase        = 0xe0001020,
  20                 .irq            = 4,
  21                 .uartclk        = 20000000,
  22                 .iotype         = UPIO_MEM,
  23                 .flags          = OCELOT_UART_FLAGS,
  24                 .regshift       = 2,
  25         },
  26         { },
  27 };
  28
  29 static struct platform_device uart8250_device = {
  30         .name                   = "serial8250",
  31         .id                     = PLAT8250_DEV_PLATFORM,
  32         .dev                    = {
  33                 .platform_data  = uart8250_data,
  34         },
  35 };
  36
  37 static int __init uart8250_init(void)
  38 {
  39         return platform_device_register(&uart8250_device);
  40 }
  41
  42 module_init(uart8250_init);
  43
  44 MODULE_AUTHOR("Ralf Baechle <ralf@linux-mips.org>");
  45 MODULE_LICENSE("GPL");
  46 MODULE_DESCRIPTION("8250 UART probe driver for the Momenco Ocelot");