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
|
/*
* drivers/pcmcia/sa1100_simpad.c
*
* PCMCIA implementation routines for simpad
*
*/
#include <linux/module.h>
#include <linux/kernel.h>
#include <linux/device.h>
#include <linux/init.h>
#include <mach/hardware.h>
#include <asm/mach-types.h>
#include <asm/irq.h>
#include <mach/simpad.h>
#include "sa1100_generic.h"
static int simpad_pcmcia_hw_init(struct soc_pcmcia_socket *skt)
{
simpad_clear_cs3_bit(VCC_3V_EN|VCC_5V_EN|EN0|EN1);
skt->stat[SOC_STAT_CD].gpio = GPIO_CF_CD;
skt->stat[SOC_STAT_CD].name = "CF_CD";
skt->stat[SOC_STAT_RDY].gpio = GPIO_CF_IRQ;
skt->stat[SOC_STAT_RDY].name = "CF_RDY";
return 0;
}
static void simpad_pcmcia_hw_shutdown(struct soc_pcmcia_socket *skt)
{
/* Disable CF bus: */
/*simpad_set_cs3_bit(PCMCIA_BUFF_DIS);*/
simpad_clear_cs3_bit(PCMCIA_RESET);
}
static void
simpad_pcmcia_socket_state(struct soc_pcmcia_socket *skt,
struct pcmcia_state *state)
{
long cs3reg = simpad_get_cs3_ro();
/* the detect signal is inverted - fix that up here */
state->detect = !state->detect;
state->bvd1 = 1; /* Might be cs3reg & PCMCIA_BVD1 */
state->bvd2 = 1; /* Might be cs3reg & PCMCIA_BVD2 */
if ((cs3reg & (PCMCIA_VS1|PCMCIA_VS2)) ==
(PCMCIA_VS1|PCMCIA_VS2)) {
state->vs_3v=0;
state->vs_Xv=0;
} else {
state->vs_3v=1;
state->vs_Xv=0;
}
}
static int
simpad_pcmcia_configure_socket(struct soc_pcmcia_socket *skt,
const socket_state_t *state)
{
unsigned long flags;
local_irq_save(flags);
/* Murphy: see table of MIC2562a-1 */
switch (state->Vcc) {
case 0:
simpad_clear_cs3_bit(VCC_3V_EN|VCC_5V_EN|EN0|EN1);
break;
case 33:
simpad_clear_cs3_bit(VCC_3V_EN|EN1);
simpad_set_cs3_bit(VCC_5V_EN|EN0);
break;
case 50:
simpad_clear_cs3_bit(VCC_5V_EN|EN1);
simpad_set_cs3_bit(VCC_3V_EN|EN0);
break;
default:
printk(KERN_ERR "%s(): unrecognized Vcc %u
",
__func__, state->Vcc);
simpad_clear_cs3_bit(VCC_3V_EN|VCC_5V_EN|EN0|EN1);
local_irq_restore(flags);
return -1;
}
local_irq_restore(flags);
return 0;
}
static void simpad_pcmcia_socket_suspend(struct soc_pcmcia_socket *skt)
{
simpad_set_cs3_bit(PCMCIA_RESET);
}
static struct pcmcia_low_level simpad_pcmcia_ops = {
.owner = THIS_MODULE,
.hw_init = simpad_pcmcia_hw_init,
.hw_shutdown = simpad_pcmcia_hw_shutdown,
.socket_state = simpad_pcmcia_socket_state,
.configure_socket = simpad_pcmcia_configure_socket,
.socket_suspend = simpad_pcmcia_socket_suspend,
};
int pcmcia_simpad_init(struct device *dev)
{
int ret = -ENODEV;
if (machine_is_simpad())
ret = sa11xx_drv_pcmcia_probe(dev, &simpad_pcmcia_ops, 1, 1);
return ret;
}
|