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 #define MACEISA_SERIAL1_OFFS   offsetof(struct sgi_mace, isa.serial1)
17 #define MACEISA_SERIAL2_OFFS   offsetof(struct sgi_mace, isa.serial2)
18 
19 #define MACE_PORT(offset,_irq)						\
20 {									\
21 	.mapbase	= MACE_BASE + offset,				\
22 	.irq		= _irq,						\
23 	.uartclk	= 1843200,					\
24 	.iotype		= UPIO_MEM,					\
25 	.flags		= UPF_SKIP_TEST|UPF_IOREMAP,			\
26 	.regshift	= 8,						\
27 }
28 
29 static struct plat_serial8250_port uart8250_data[] = {
30 	MACE_PORT(MACEISA_SERIAL1_OFFS, MACEISA_SERIAL1_IRQ),
31 	MACE_PORT(MACEISA_SERIAL2_OFFS, MACEISA_SERIAL2_IRQ),
32 	{ },
33 };
34 
35 static struct platform_device uart8250_device = {
36 	.name			= "serial8250",
37 	.id			= PLAT8250_DEV_PLATFORM,
38 	.dev			= {
39 		.platform_data	= uart8250_data,
40 	},
41 };
42 
43 static int __init uart8250_init(void)
44 {
45 	return platform_device_register(&uart8250_device);
46 }
47 
48 device_initcall(uart8250_init);
49 
50 static __init int meth_devinit(void)
51 {
52 	struct platform_device *pd;
53 	int ret;
54 
55 	pd = platform_device_alloc("meth", -1);
56 	if (!pd)
57 		return -ENOMEM;
58 
59 	ret = platform_device_add(pd);
60 	if (ret)
61 		platform_device_put(pd);
62 
63 	return ret;
64 }
65 
66 device_initcall(meth_devinit);
67 
68 MODULE_AUTHOR("Ralf Baechle <ralf@linux-mips.org>");
69 MODULE_LICENSE("GPL");
70 MODULE_DESCRIPTION("8250 UART probe driver for SGI IP32 aka O2");
71