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/module.h>
9 #include <linux/init.h>
10 #include <linux/platform_device.h>
11 #include <linux/serial_8250.h>
12 
13 #include <asm/ip32/mace.h>
14 #include <asm/ip32/ip32_ints.h>
15 
16 /*
17  * .iobase isn't a constant (in the sense of C) so we fill it in at runtime.
18  */
19 #define MACE_PORT(int)							\
20 {									\
21 	.irq		= int,						\
22 	.uartclk	= 1843200,					\
23 	.iotype		= UPIO_MEM,					\
24 	.flags		= UPF_SKIP_TEST,				\
25 	.regshift	= 8,						\
26 }
27 
28 static struct plat_serial8250_port uart8250_data[] = {
29 	MACE_PORT(MACEISA_SERIAL1_IRQ),
30 	MACE_PORT(MACEISA_SERIAL2_IRQ),
31 	{ },
32 };
33 
34 static struct platform_device uart8250_device = {
35 	.name			= "serial8250",
36 	.id			= PLAT8250_DEV_PLATFORM,
37 	.dev			= {
38 		.platform_data	= uart8250_data,
39 	},
40 };
41 
42 static int __init uart8250_init(void)
43 {
44 	uart8250_data[0].iobase = (unsigned long) &mace->isa.serial1;
45 	uart8250_data[1].iobase = (unsigned long) &mace->isa.serial1;
46 
47 	return platform_device_register(&uart8250_device);
48 }
49 
50 device_initcall(uart8250_init);
51 
52 static __init int meth_devinit(void)
53 {
54 	struct platform_device *pd;
55 	int ret;
56 
57 	pd = platform_device_alloc("meth", -1);
58 	if (!pd)
59 		return -ENOMEM;
60 
61 	ret = platform_device_add(pd);
62 	if (ret)
63 		platform_device_put(pd);
64 
65 	return ret;
66 }
67 
68 device_initcall(meth_devinit);
69 
70 MODULE_AUTHOR("Ralf Baechle <ralf@linux-mips.org>");
71 MODULE_LICENSE("GPL");
72 MODULE_DESCRIPTION("8250 UART probe driver for SGI IP32 aka O2");
73