1/*
2 * Serial Device Initialisation for Au1x00
3 *
4 * (C) Copyright Embedded Alley Solutions, Inc 2005
5 * Author: Pantelis Antoniou <pantelis@embeddedalley.com>
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 as published by
9 * the Free Software Foundation; either version 2 of the License, or
10 * (at your option) any later version.
11 */
12
13#include <linux/errno.h>
14#include <linux/init.h>
15#include <linux/interrupt.h>
16#include <linux/ioport.h>
17#include <linux/module.h>
18#include <linux/serial_core.h>
19#include <linux/signal.h>
20#include <linux/slab.h>
21#include <linux/types.h>
22
23#include <linux/serial_8250.h>
24
25#include <asm/mach-au1x00/au1000.h>
26
27#include "8250.h"
28
29#define PORT(_base, _irq)				\
30	{						\
31		.iobase		= _base,		\
32		.membase	= (void __iomem *)_base,\
33		.mapbase	= CPHYSADDR(_base),	\
34		.irq		= _irq,			\
35		.uartclk	= 0,	/* filled */	\
36		.regshift	= 2,			\
37		.iotype		= UPIO_AU,		\
38		.flags		= UPF_SKIP_TEST 	\
39	}
40
41static struct plat_serial8250_port au1x00_data[] = {
42#if defined(CONFIG_SOC_AU1000)
43	PORT(UART0_ADDR, AU1000_UART0_INT),
44	PORT(UART1_ADDR, AU1000_UART1_INT),
45	PORT(UART2_ADDR, AU1000_UART2_INT),
46	PORT(UART3_ADDR, AU1000_UART3_INT),
47#elif defined(CONFIG_SOC_AU1500)
48	PORT(UART0_ADDR, AU1500_UART0_INT),
49	PORT(UART3_ADDR, AU1500_UART3_INT),
50#elif defined(CONFIG_SOC_AU1100)
51	PORT(UART0_ADDR, AU1100_UART0_INT),
52	PORT(UART1_ADDR, AU1100_UART1_INT),
53	/* The internal UART2 does not exist on the AU1100 processor. */
54	PORT(UART3_ADDR, AU1100_UART3_INT),
55#elif defined(CONFIG_SOC_AU1550)
56	PORT(UART0_ADDR, AU1550_UART0_INT),
57	PORT(UART1_ADDR, AU1550_UART1_INT),
58	PORT(UART3_ADDR, AU1550_UART3_INT),
59#elif defined(CONFIG_SOC_AU1200)
60	PORT(UART0_ADDR, AU1200_UART0_INT),
61	PORT(UART1_ADDR, AU1200_UART1_INT),
62#endif
63	{ },
64};
65
66static struct platform_device au1x00_device = {
67	.name			= "serial8250",
68	.id			= PLAT8250_DEV_AU1X00,
69	.dev			= {
70		.platform_data	= au1x00_data,
71	},
72};
73
74static int __init au1x00_init(void)
75{
76	int i;
77	unsigned int uartclk;
78
79	/* get uart clock */
80	uartclk = get_au1x00_uart_baud_base() * 16;
81
82	/* fill up uartclk */
83	for (i = 0; au1x00_data[i].flags ; i++)
84		au1x00_data[i].uartclk = uartclk;
85
86	return platform_device_register(&au1x00_device);
87}
88
89static void __exit au1x00_exit(void)
90{
91	platform_device_unregister(&au1x00_device);
92}
93
94module_init(au1x00_init);
95module_exit(au1x00_exit);
96
97MODULE_AUTHOR("Pantelis Antoniou <pantelis@embeddedalley.com>");
98MODULE_DESCRIPTION("8250 serial probe module for Au1x000 cards");
99MODULE_LICENSE("GPL");
100