2 * Copyright (C) ST-Ericsson SA 2010
4 * Author: Hanumath Prasad <hanumath.prasad@stericsson.com>
5 * License terms: GNU General Public License (GPL) version 2
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>
15 #include <plat/pincfg.h>
16 #include <mach/devices.h>
17 #include <mach/hardware.h>
19 #include "pins-db8500.h"
20 #include "board-mop500.h"
22 static pin_cfg_t mop500_sdi_pins[] = {
23 /* SDI0 (MicroSD slot) */
36 /* SDI4 (on-board eMMC) */
50 static pin_cfg_t mop500_sdi2_pins[] = {
66 * SDI 0 (MicroSD slot)
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)
76 static u32 mop500_sdi0_vdd_handler(struct device *dev, unsigned int vdd,
77 unsigned char power_mode)
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);
84 return MCI_FBCLKEN | MCI_CMDDIREN | MCI_DATA0DIREN |
85 MCI_DATA2DIREN | MCI_DATA31DIREN;
88 static struct mmci_platform_data mop500_sdi0_data = {
89 .vdd_handler = mop500_sdi0_vdd_handler,
90 .ocr_mask = MMC_VDD_29_30,
92 .capabilities = MMC_CAP_4_BIT_DATA,
93 .gpio_cd = GPIO_SDMMC_CD,
97 void mop500_sdi_tc35892_init(void)
101 ret = gpio_request(GPIO_SDMMC_EN, "SDMMC_EN");
103 ret = gpio_request(GPIO_SDMMC_1V8_3V_SEL,
104 "GPIO_SDMMC_1V8_3V_SEL");
108 gpio_direction_output(GPIO_SDMMC_1V8_3V_SEL, 1);
109 gpio_direction_output(GPIO_SDMMC_EN, 0);
111 amba_device_register(&u8500_sdi0_device, &iomem_resource);
115 * SDI 2 (POP eMMC, not on DB8500ed)
118 static struct mmci_platform_data mop500_sdi2_data = {
119 .ocr_mask = MMC_VDD_165_195,
121 .capabilities = MMC_CAP_4_BIT_DATA | MMC_CAP_8_BIT_DATA,
127 * SDI 4 (on-board eMMC)
130 static struct mmci_platform_data mop500_sdi4_data = {
131 .ocr_mask = MMC_VDD_29_30,
133 .capabilities = MMC_CAP_4_BIT_DATA | MMC_CAP_8_BIT_DATA |
134 MMC_CAP_MMC_HIGHSPEED,
139 void mop500_sdi_init(void)
141 nmk_config_pins(mop500_sdi_pins, ARRAY_SIZE(mop500_sdi_pins));
143 u8500_sdi0_device.dev.platform_data = &mop500_sdi0_data;
144 u8500_sdi2_device.dev.platform_data = &mop500_sdi2_data;
145 u8500_sdi4_device.dev.platform_data = &mop500_sdi4_data;
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);
153 amba_device_register(&u8500_sdi4_device, &iomem_resource);