ia64/linux-2.6.18-xen.hg

view drivers/serial/8250_mca.c @ 893:f994bfe9b93b

linux/blktap2: reduce TLB flush scope

c/s 885 added very coarse TLB flushing. Since these flushes always
follow single page updates, single page flushes (when available) are
sufficient.

Signed-off-by: Jan Beulich <jbeulich@novell.com>
author Keir Fraser <keir.fraser@citrix.com>
date Thu Jun 04 10:32:57 2009 +0100 (2009-06-04)
parents 831230e53067
children
line source
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>
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
25 #define PORT(_base,_irq) \
26 { \
27 .iobase = _base, \
28 .irq = _irq, \
29 .uartclk = 1843200, \
30 .iotype = UPIO_PORT, \
31 .flags = MCA_FLAGS, \
32 }
34 static 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 };
44 static struct platform_device mca_device = {
45 .name = "serial8250",
46 .id = PLAT8250_DEV_MCA,
47 .dev = {
48 .platform_data = mca_data,
49 },
50 };
52 static int __init mca_init(void)
53 {
54 if (!MCA_bus)
55 return -ENODEV;
56 return platform_device_register(&mca_device);
57 }
59 module_init(mca_init);
61 MODULE_AUTHOR("Russell King");
62 MODULE_DESCRIPTION("8250 serial probe module for MCA ports");
63 MODULE_LICENSE("GPL");