[MIPS] IP32: Enable PCI bridges
[linux-2.6.git] / arch / mips / jazz / jazz-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 #include <linux/init.h>
9 #include <linux/module.h>
10 #include <linux/serial_8250.h>
11
12 #include <asm/jazz.h>
13
14 /*
15  * Confusion ...  It seems the original Microsoft Jazz machine used to have a
16  * 4.096MHz clock for its UART while the MIPS Magnum and Millenium systems
17  * had 8MHz.  The Olivetti M700-10 and the Acer PICA have 1.8432MHz like PCs.
18  */
19 #ifdef CONFIG_OLIVETTI_M700
20 #define JAZZ_BASE_BAUD 1843200
21 #else
22 #define JAZZ_BASE_BAUD  8000000 /* 3072000 */
23 #endif
24
25 #define JAZZ_UART_FLAGS (UPF_BOOT_AUTOCONF | UPF_SKIP_TEST | UPF_IOREMAP)
26
27 #define JAZZ_PORT(base, int)                                            \
28 {                                                                       \
29         .mapbase        = base,                                         \
30         .irq            = int,                                          \
31         .uartclk        = JAZZ_BASE_BAUD,                               \
32         .iotype         = UPIO_MEM,                                     \
33         .flags          = JAZZ_UART_FLAGS,                              \
34         .regshift       = 0,                                            \
35 }
36
37 static struct plat_serial8250_port uart8250_data[] = {
38         JAZZ_PORT(JAZZ_SERIAL1_BASE, JAZZ_SERIAL1_IRQ),
39         JAZZ_PORT(JAZZ_SERIAL2_BASE, JAZZ_SERIAL2_IRQ),
40         { },
41 };
42
43 static struct platform_device uart8250_device = {
44         .name                   = "serial8250",
45         .id                     = PLAT8250_DEV_PLATFORM,
46         .dev                    = {
47                 .platform_data  = uart8250_data,
48         },
49 };
50
51 static int __init uart8250_init(void)
52 {
53         return platform_device_register(&uart8250_device);
54 }
55
56 module_init(uart8250_init);
57
58 MODULE_AUTHOR("Ralf Baechle <ralf@linux-mips.org>");
59 MODULE_LICENSE("GPL");
60 MODULE_DESCRIPTION("8250 UART probe driver for the Jazz family");