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review.evervolv.com / android_kernel_htc_msm8960 / b8410a150fbc4e61a28032637dc0ae7e8609131d / . / arch / arm / mach-ux500 / board-mop500-sdi.c
blob: f0095ffee4385aca8ef1a24b238f01f99d8511d1 [file] [log] [blame]
Hanumath Prasad008f8a22010-08-19 12:06:32 +0100[diff] [blame]1/*
2 * Copyright (C) ST-Ericsson SA 2010
3 *
4 * Author: Hanumath Prasad <hanumath.prasad@stericsson.com>
5 * License terms: GNU General Public License (GPL) version 2
6 */
7
8#include <linux/kernel.h>
9#include <linux/gpio.h>
10#include <linux/amba/bus.h>
11#include <linux/amba/mmci.h>
12#include <linux/mmc/host.h>
13#include <linux/platform_device.h>
14
15#include <plat/pincfg.h>
16#include <mach/devices.h>
17#include <mach/hardware.h>
18
19#include "pins-db8500.h"
20#include "board-mop500.h"
21
22static pin_cfg_t mop500_sdi_pins[] = {
Rabin Vincentb8410a12010-08-09 19:18:17 +0530[diff] [blame^]23 /* SDI0 (MicroSD slot) */
24 GPIO18_MC0_CMDDIR,
25 GPIO19_MC0_DAT0DIR,
26 GPIO20_MC0_DAT2DIR,
27 GPIO21_MC0_DAT31DIR,
28 GPIO22_MC0_FBCLK,
29 GPIO23_MC0_CLK,
30 GPIO24_MC0_CMD,
31 GPIO25_MC0_DAT0,
32 GPIO26_MC0_DAT1,
33 GPIO27_MC0_DAT2,
34 GPIO28_MC0_DAT3,
35
Hanumath Prasad008f8a22010-08-19 12:06:32 +0100[diff] [blame]36 /* SDI4 (on-board eMMC) */
37 GPIO197_MC4_DAT3,
38 GPIO198_MC4_DAT2,
39 GPIO199_MC4_DAT1,
40 GPIO200_MC4_DAT0,
41 GPIO201_MC4_CMD,
42 GPIO202_MC4_FBCLK,
43 GPIO203_MC4_CLK,
44 GPIO204_MC4_DAT7,
45 GPIO205_MC4_DAT6,
46 GPIO206_MC4_DAT5,
47 GPIO207_MC4_DAT4,
48};
49
50static pin_cfg_t mop500_sdi2_pins[] = {
51 /* SDI2 (POP eMMC) */
52 GPIO128_MC2_CLK,
53 GPIO129_MC2_CMD,
54 GPIO130_MC2_FBCLK,
55 GPIO131_MC2_DAT0,
56 GPIO132_MC2_DAT1,
57 GPIO133_MC2_DAT2,
58 GPIO134_MC2_DAT3,
59 GPIO135_MC2_DAT4,
60 GPIO136_MC2_DAT5,
61 GPIO137_MC2_DAT6,
62 GPIO138_MC2_DAT7,
63};
64
65/*
Rabin Vincentb8410a12010-08-09 19:18:17 +0530[diff] [blame^]66 * SDI 0 (MicroSD slot)
67 */
68
69/* MMCIPOWER bits */
70#define MCI_DATA2DIREN (1 << 2)
71#define MCI_CMDDIREN (1 << 3)
72#define MCI_DATA0DIREN (1 << 4)
73#define MCI_DATA31DIREN (1 << 5)
74#define MCI_FBCLKEN (1 << 7)
75
76static u32 mop500_sdi0_vdd_handler(struct device *dev, unsigned int vdd,
77 unsigned char power_mode)
78{
79 if (power_mode == MMC_POWER_UP)
80 gpio_set_value(GPIO_SDMMC_EN, 1);
81 else if (power_mode == MMC_POWER_OFF)
82 gpio_set_value(GPIO_SDMMC_EN, 0);
83
84 return MCI_FBCLKEN | MCI_CMDDIREN | MCI_DATA0DIREN |
85 MCI_DATA2DIREN | MCI_DATA31DIREN;
86}
87
88static struct mmci_platform_data mop500_sdi0_data = {
89 .vdd_handler = mop500_sdi0_vdd_handler,
90 .ocr_mask = MMC_VDD_29_30,
91 .f_max = 100000000,
92 .capabilities = MMC_CAP_4_BIT_DATA,
93 .gpio_cd = GPIO_SDMMC_CD,
94 .gpio_wp = -1,
95};
96
97void mop500_sdi_tc35892_init(void)
98{
99 int ret;
100
101 ret = gpio_request(GPIO_SDMMC_EN, "SDMMC_EN");
102 if (!ret)
103 ret = gpio_request(GPIO_SDMMC_1V8_3V_SEL,
104 "GPIO_SDMMC_1V8_3V_SEL");
105 if (ret)
106 return;
107
108 gpio_direction_output(GPIO_SDMMC_1V8_3V_SEL, 1);
109 gpio_direction_output(GPIO_SDMMC_EN, 0);
110
111 amba_device_register(&u8500_sdi0_device, &iomem_resource);
112}
113
114/*
Hanumath Prasad008f8a22010-08-19 12:06:32 +0100[diff] [blame]115 * SDI 2 (POP eMMC, not on DB8500ed)
116 */
117
118static struct mmci_platform_data mop500_sdi2_data = {
119 .ocr_mask = MMC_VDD_165_195,
120 .f_max = 100000000,
121 .capabilities = MMC_CAP_4_BIT_DATA | MMC_CAP_8_BIT_DATA,
122 .gpio_cd = -1,
123 .gpio_wp = -1,
124};
125
126/*
127 * SDI 4 (on-board eMMC)
128 */
129
130static struct mmci_platform_data mop500_sdi4_data = {
131 .ocr_mask = MMC_VDD_29_30,
132 .f_max = 100000000,
133 .capabilities = MMC_CAP_4_BIT_DATA | MMC_CAP_8_BIT_DATA |
134 MMC_CAP_MMC_HIGHSPEED,
135 .gpio_cd = -1,
136 .gpio_wp = -1,
137};
138
139void mop500_sdi_init(void)
140{
141 nmk_config_pins(mop500_sdi_pins, ARRAY_SIZE(mop500_sdi_pins));
142
Rabin Vincentb8410a12010-08-09 19:18:17 +0530[diff] [blame^]143 u8500_sdi0_device.dev.platform_data = &mop500_sdi0_data;
Hanumath Prasad008f8a22010-08-19 12:06:32 +0100[diff] [blame]144 u8500_sdi2_device.dev.platform_data = &mop500_sdi2_data;
145 u8500_sdi4_device.dev.platform_data = &mop500_sdi4_data;
146
147 if (!cpu_is_u8500ed()) {
148 nmk_config_pins(mop500_sdi2_pins, ARRAY_SIZE(mop500_sdi2_pins));
149 amba_device_register(&u8500_sdi2_device, &iomem_resource);
150 }
151
152 /* On-board eMMC */
153 amba_device_register(&u8500_sdi4_device, &iomem_resource);
154}