6b13f685e
 김민수
BSP 최초 추가
|
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
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
|
/*
* Toshiba e740 PCMCIA specific routines.
*
* (c) 2004 Ian Molton <spyro@f2s.com>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*/
#include <linux/init.h>
#include <linux/module.h>
#include <linux/kernel.h>
#include <linux/errno.h>
#include <linux/gpio.h>
#include <linux/interrupt.h>
#include <linux/platform_device.h>
#include <mach/eseries-gpio.h>
#include <asm/irq.h>
#include <asm/mach-types.h>
#include "soc_common.h"
static int e740_pcmcia_hw_init(struct soc_pcmcia_socket *skt)
{
if (skt->nr == 0) {
skt->stat[SOC_STAT_CD].gpio = GPIO_E740_PCMCIA_CD0;
skt->stat[SOC_STAT_CD].name = "CF card detect";
skt->stat[SOC_STAT_RDY].gpio = GPIO_E740_PCMCIA_RDY0;
skt->stat[SOC_STAT_RDY].name = "CF ready";
} else {
skt->stat[SOC_STAT_CD].gpio = GPIO_E740_PCMCIA_CD1;
skt->stat[SOC_STAT_CD].name = "Wifi switch";
skt->stat[SOC_STAT_RDY].gpio = GPIO_E740_PCMCIA_RDY1;
skt->stat[SOC_STAT_RDY].name = "Wifi ready";
}
return 0;
}
static void e740_pcmcia_socket_state(struct soc_pcmcia_socket *skt,
struct pcmcia_state *state)
{
state->vs_3v = 1;
state->vs_Xv = 0;
}
static int e740_pcmcia_configure_socket(struct soc_pcmcia_socket *skt,
const socket_state_t *state)
{
if (state->flags & SS_RESET) {
if (skt->nr == 0)
gpio_set_value(GPIO_E740_PCMCIA_RST0, 1);
else
gpio_set_value(GPIO_E740_PCMCIA_RST1, 1);
} else {
if (skt->nr == 0)
gpio_set_value(GPIO_E740_PCMCIA_RST0, 0);
else
gpio_set_value(GPIO_E740_PCMCIA_RST1, 0);
}
switch (state->Vcc) {
case 0: /* Socket off */
if (skt->nr == 0)
gpio_set_value(GPIO_E740_PCMCIA_PWR0, 0);
else
gpio_set_value(GPIO_E740_PCMCIA_PWR1, 1);
break;
case 50:
case 33: /* socket on */
if (skt->nr == 0)
gpio_set_value(GPIO_E740_PCMCIA_PWR0, 1);
else
gpio_set_value(GPIO_E740_PCMCIA_PWR1, 0);
break;
default:
printk(KERN_ERR "e740_cs: Unsupported Vcc: %d
", state->Vcc);
}
return 0;
}
static struct pcmcia_low_level e740_pcmcia_ops = {
.owner = THIS_MODULE,
.hw_init = e740_pcmcia_hw_init,
.socket_state = e740_pcmcia_socket_state,
.configure_socket = e740_pcmcia_configure_socket,
.nr = 2,
};
static struct platform_device *e740_pcmcia_device;
static int __init e740_pcmcia_init(void)
{
int ret;
if (!machine_is_e740())
return -ENODEV;
e740_pcmcia_device = platform_device_alloc("pxa2xx-pcmcia", -1);
if (!e740_pcmcia_device)
return -ENOMEM;
ret = platform_device_add_data(e740_pcmcia_device, &e740_pcmcia_ops,
sizeof(e740_pcmcia_ops));
if (!ret)
ret = platform_device_add(e740_pcmcia_device);
if (ret)
platform_device_put(e740_pcmcia_device);
return ret;
}
static void __exit e740_pcmcia_exit(void)
{
platform_device_unregister(e740_pcmcia_device);
}
module_init(e740_pcmcia_init);
module_exit(e740_pcmcia_exit);
MODULE_LICENSE("GPL v2");
MODULE_AUTHOR("Ian Molton <spyro@f2s.com>");
MODULE_ALIAS("platform:pxa2xx-pcmcia");
MODULE_DESCRIPTION("e740 PCMCIA platform support");
|