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
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
|
/* linux/arch/arm/mach-exynos4/setup-sdhci-gpio.c
*
* Copyright (c) 2010-2011 Samsung Electronics Co., Ltd.
* http://www.samsung.com
*
* EXYNOS4 - Helper functions for setting up SDHCI device(s) GPIO (HSMMC)
*
* 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/kernel.h>
#include <linux/types.h>
#include <linux/interrupt.h>
#include <linux/platform_device.h>
#include <linux/io.h>
#include <linux/gpio.h>
#include <linux/mmc/host.h>
#include <linux/mmc/card.h>
#include <mach/gpio.h>
#include <plat/gpio-cfg.h>
#include <plat/sdhci.h>
void exynos4_setup_sdhci0_cfg_gpio(struct platform_device *dev, int width)
{
struct s3c_sdhci_platdata *pdata = dev->dev.platform_data;
unsigned int gpio;
/* Set all the necessary GPK0[0:1] pins to special-function 2 */
for (gpio = EXYNOS4_GPK0(0); gpio < EXYNOS4_GPK0(2); gpio++) {
s3c_gpio_cfgpin(gpio, S3C_GPIO_SFN(2));
s3c_gpio_setpull(gpio, S3C_GPIO_PULL_NONE);
s5p_gpio_set_drvstr(gpio, S5P_GPIO_DRVSTR_LV4);
}
switch (width) {
case 8:
for (gpio = EXYNOS4_GPK1(3); gpio <= EXYNOS4_GPK1(6); gpio++) {
/* Data pin GPK1[3:6] to special-function 3 */
s3c_gpio_cfgpin(gpio, S3C_GPIO_SFN(3));
s3c_gpio_setpull(gpio, S3C_GPIO_PULL_UP);
s5p_gpio_set_drvstr(gpio, S5P_GPIO_DRVSTR_LV4);
}
case 4:
for (gpio = EXYNOS4_GPK0(3); gpio <= EXYNOS4_GPK0(6); gpio++) {
/* Data pin GPK0[3:6] to special-function 2 */
s3c_gpio_cfgpin(gpio, S3C_GPIO_SFN(2));
s3c_gpio_setpull(gpio, S3C_GPIO_PULL_UP);
s5p_gpio_set_drvstr(gpio, S5P_GPIO_DRVSTR_LV4);
}
default:
break;
}
if (pdata->cd_type == S3C_SDHCI_CD_INTERNAL) {
s3c_gpio_cfgpin(EXYNOS4_GPK0(2), S3C_GPIO_SFN(2));
s3c_gpio_setpull(EXYNOS4_GPK0(2), S3C_GPIO_PULL_UP);
s5p_gpio_set_drvstr(gpio, S5P_GPIO_DRVSTR_LV4);
}
}
void exynos4_setup_sdhci1_cfg_gpio(struct platform_device *dev, int width)
{
struct s3c_sdhci_platdata *pdata = dev->dev.platform_data;
unsigned int gpio;
/* Set all the necessary GPK1[0:1] pins to special-function 2 */
for (gpio = EXYNOS4_GPK1(0); gpio < EXYNOS4_GPK1(2); gpio++) {
s3c_gpio_cfgpin(gpio, S3C_GPIO_SFN(2));
s3c_gpio_setpull(gpio, S3C_GPIO_PULL_NONE);
s5p_gpio_set_drvstr(gpio, S5P_GPIO_DRVSTR_LV4);
}
for (gpio = EXYNOS4_GPK1(3); gpio <= EXYNOS4_GPK1(6); gpio++) {
/* Data pin GPK1[3:6] to special-function 2 */
s3c_gpio_cfgpin(gpio, S3C_GPIO_SFN(2));
s3c_gpio_setpull(gpio, S3C_GPIO_PULL_UP);
s5p_gpio_set_drvstr(gpio, S5P_GPIO_DRVSTR_LV4);
}
if (pdata->cd_type == S3C_SDHCI_CD_INTERNAL) {
s3c_gpio_cfgpin(EXYNOS4_GPK1(2), S3C_GPIO_SFN(2));
s3c_gpio_setpull(EXYNOS4_GPK1(2), S3C_GPIO_PULL_UP);
s5p_gpio_set_drvstr(gpio, S5P_GPIO_DRVSTR_LV4);
}
}
void exynos4_setup_sdhci2_cfg_gpio(struct platform_device *dev, int width)
{
struct s3c_sdhci_platdata *pdata = dev->dev.platform_data;
unsigned int gpio;
/* Set all the necessary GPK2[0:1] pins to special-function 2 */
for (gpio = EXYNOS4_GPK2(0); gpio < EXYNOS4_GPK2(2); gpio++) {
s3c_gpio_cfgpin(gpio, S3C_GPIO_SFN(2));
s3c_gpio_setpull(gpio, S3C_GPIO_PULL_NONE);
s5p_gpio_set_drvstr(gpio, S5P_GPIO_DRVSTR_LV4);
}
switch (width) {
case 8:
for (gpio = EXYNOS4_GPK3(3); gpio <= EXYNOS4_GPK3(6); gpio++) {
/* Data pin GPK3[3:6] to special-function 3 */
s3c_gpio_cfgpin(gpio, S3C_GPIO_SFN(3));
s3c_gpio_setpull(gpio, S3C_GPIO_PULL_UP);
s5p_gpio_set_drvstr(gpio, S5P_GPIO_DRVSTR_LV4);
}
case 4:
for (gpio = EXYNOS4_GPK2(3); gpio <= EXYNOS4_GPK2(6); gpio++) {
/* Data pin GPK2[3:6] to special-function 2 */
s3c_gpio_cfgpin(gpio, S3C_GPIO_SFN(2));
s3c_gpio_setpull(gpio, S3C_GPIO_PULL_UP);
s5p_gpio_set_drvstr(gpio, S5P_GPIO_DRVSTR_LV4);
}
default:
break;
}
if (pdata->cd_type == S3C_SDHCI_CD_INTERNAL) {
s3c_gpio_cfgpin(EXYNOS4_GPK2(2), S3C_GPIO_SFN(2));
s3c_gpio_setpull(EXYNOS4_GPK2(2), S3C_GPIO_PULL_UP);
s5p_gpio_set_drvstr(gpio, S5P_GPIO_DRVSTR_LV4);
}
}
void exynos4_setup_sdhci3_cfg_gpio(struct platform_device *dev, int width)
{
struct s3c_sdhci_platdata *pdata = dev->dev.platform_data;
unsigned int gpio;
/* Set all the necessary GPK3[0:1] pins to special-function 2 */
for (gpio = EXYNOS4_GPK3(0); gpio < EXYNOS4_GPK3(2); gpio++) {
s3c_gpio_cfgpin(gpio, S3C_GPIO_SFN(2));
s3c_gpio_setpull(gpio, S3C_GPIO_PULL_NONE);
s5p_gpio_set_drvstr(gpio, S5P_GPIO_DRVSTR_LV4);
}
for (gpio = EXYNOS4_GPK3(3); gpio <= EXYNOS4_GPK3(6); gpio++) {
/* Data pin GPK3[3:6] to special-function 2 */
s3c_gpio_cfgpin(gpio, S3C_GPIO_SFN(2));
s3c_gpio_setpull(gpio, S3C_GPIO_PULL_UP);
s5p_gpio_set_drvstr(gpio, S5P_GPIO_DRVSTR_LV4);
}
if (pdata->cd_type == S3C_SDHCI_CD_INTERNAL) {
s3c_gpio_cfgpin(EXYNOS4_GPK3(2), S3C_GPIO_SFN(2));
s3c_gpio_setpull(EXYNOS4_GPK3(2), S3C_GPIO_PULL_UP);
s5p_gpio_set_drvstr(gpio, S5P_GPIO_DRVSTR_LV4);
}
}
|
