arch/mips/mti-sead3/sead3-serial.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) 2012 MIPS Technologies, Inc.  All rights reserved.
   7  */
   8 #include <linux/module.h>
   9 #include <linux/init.h>
  10 #include <linux/serial_8250.h>
  11
  12 #define UART(base, int)                                                 \
  13 {                                                                       \
  14         .mapbase        = base,                                         \
  15         .irq            = int,                                          \
  16         .uartclk        = 14745600,                                     \
  17         .iotype         = UPIO_MEM32,                                   \
  18         .flags          = UPF_BOOT_AUTOCONF | UPF_SKIP_TEST | UPF_IOREMAP, \
  19         .regshift       = 2,                                            \
  20 }
  21
  22 static struct plat_serial8250_port uart8250_data[] = {
  23         UART(0x1f000900, MIPS_CPU_IRQ_BASE + 4),   /* ttyS0 = USB   */
  24         UART(0x1f000800, MIPS_CPU_IRQ_BASE + 4),   /* ttyS1 = RS232 */
  25         { },
  26 };
  27
  28 static struct platform_device uart8250_device = {
  29         .name                   = "serial8250",
  30         .id                     = PLAT8250_DEV_PLATFORM,
  31         .dev                    = {
  32                 .platform_data  = uart8250_data,
  33         },
  34 };
  35
  36 static int __init uart8250_init(void)
  37 {
  38         return platform_device_register(&uart8250_device);
  39 }
  40
  41 module_init(uart8250_init);
  42
  43 MODULE_AUTHOR("Chris Dearman <chris@mips.com>");
  44 MODULE_LICENSE("GPL");
  45 MODULE_DESCRIPTION("8250 UART probe driver for the SEAD-3 platform");