1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
|
/*
* Serial Device Initialisation for Au1x00
*
* (C) Copyright Embedded Alley Solutions, Inc 2005
* Author: Pantelis Antoniou <pantelis@embeddedalley.com>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*/
#include <linux/errno.h>
#include <linux/init.h>
#include <linux/interrupt.h>
#include <linux/ioport.h>
#include <linux/module.h>
#include <linux/serial_core.h>
#include <linux/signal.h>
#include <linux/slab.h>
#include <linux/types.h>
#include <linux/serial_8250.h>
#include <asm/mach-au1x00/au1000.h>
#include "8250.h"
#define PORT(_base, _irq) \
{ \
.iobase = _base, \
.membase = (void __iomem *)_base,\
.mapbase = _base, \
.irq = _irq, \
.uartclk = 0, /* filled */ \
.regshift = 2, \
.iotype = UPIO_AU, \
.flags = UPF_SKIP_TEST | \
UPF_IOREMAP, \
}
static struct plat_serial8250_port au1x00_data[] = {
#if defined(CONFIG_SOC_AU1000)
PORT(UART0_ADDR, AU1000_UART0_INT),
PORT(UART1_ADDR, AU1000_UART1_INT),
PORT(UART2_ADDR, AU1000_UART2_INT),
PORT(UART3_ADDR, AU1000_UART3_INT),
#elif defined(CONFIG_SOC_AU1500)
PORT(UART0_ADDR, AU1500_UART0_INT),
PORT(UART3_ADDR, AU1500_UART3_INT),
#elif defined(CONFIG_SOC_AU1100)
PORT(UART0_ADDR, AU1100_UART0_INT),
PORT(UART1_ADDR, AU1100_UART1_INT),
PORT(UART2_ADDR, AU1100_UART2_INT),
PORT(UART3_ADDR, AU1100_UART3_INT),
#elif defined(CONFIG_SOC_AU1550)
PORT(UART0_ADDR, AU1550_UART0_INT),
PORT(UART1_ADDR, AU1550_UART1_INT),
PORT(UART3_ADDR, AU1550_UART3_INT),
#elif defined(CONFIG_SOC_AU1200)
PORT(UART0_ADDR, AU1200_UART0_INT),
PORT(UART1_ADDR, AU1200_UART1_INT),
#endif
{ },
};
static struct platform_device au1x00_device = {
.name = "serial8250",
.id = PLAT8250_DEV_AU1X00,
.dev = {
.platform_data = au1x00_data,
},
};
static int __init au1x00_init(void)
{
int i;
unsigned int uartclk;
/* get uart clock */
uartclk = get_au1x00_uart_baud_base() * 16;
/* fill up uartclk */
for (i = 0; au1x00_data[i].flags ; i++)
au1x00_data[i].uartclk = uartclk;
return platform_device_register(&au1x00_device);
}
/* XXX: Yes, I know this doesn't yet work. */
static void __exit au1x00_exit(void)
{
platform_device_unregister(&au1x00_device);
}
module_init(au1x00_init);
module_exit(au1x00_exit);
MODULE_AUTHOR("Pantelis Antoniou <pantelis@embeddedalley.com>");
MODULE_DESCRIPTION("8250 serial probe module for Au1x000 cards");
MODULE_LICENSE("GPL");
|
