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Linux/arch/arm/mach-omap1/board-h2-mmc.c

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  1 /*
  2  * linux/arch/arm/mach-omap1/board-h2-mmc.c
  3  *
  4  * Copyright (C) 2007 Instituto Nokia de Tecnologia - INdT
  5  * Author: Felipe Balbi <felipe.lima@indt.org.br>
  6  *
  7  * This code is based on linux/arch/arm/mach-omap2/board-n800-mmc.c, which is:
  8  * Copyright (C) 2006 Nokia Corporation
  9  *
 10  * This program is free software; you can redistribute it and/or modify
 11  * it under the terms of the GNU General Public License version 2 as
 12  * published by the Free Software Foundation.
 13  */
 14 #include <linux/gpio.h>
 15 #include <linux/platform_device.h>
 16 #include <linux/platform_data/gpio-omap.h>
 17 #include <linux/mfd/tps65010.h>
 18 
 19 #include "board-h2.h"
 20 #include "mmc.h"
 21 
 22 #if IS_ENABLED(CONFIG_MMC_OMAP)
 23 
 24 static int mmc_set_power(struct device *dev, int slot, int power_on,
 25                                 int vdd)
 26 {
 27         gpio_set_value(H2_TPS_GPIO_MMC_PWR_EN, power_on);
 28         return 0;
 29 }
 30 
 31 static int mmc_late_init(struct device *dev)
 32 {
 33         int ret = gpio_request(H2_TPS_GPIO_MMC_PWR_EN, "MMC power");
 34         if (ret < 0)
 35                 return ret;
 36 
 37         gpio_direction_output(H2_TPS_GPIO_MMC_PWR_EN, 0);
 38 
 39         return ret;
 40 }
 41 
 42 static void mmc_cleanup(struct device *dev)
 43 {
 44         gpio_free(H2_TPS_GPIO_MMC_PWR_EN);
 45 }
 46 
 47 /*
 48  * H2 could use the following functions tested:
 49  * - mmc_get_cover_state that uses OMAP_MPUIO(1)
 50  * - mmc_get_wp that uses OMAP_MPUIO(3)
 51  */
 52 static struct omap_mmc_platform_data mmc1_data = {
 53         .nr_slots                       = 1,
 54         .init                           = mmc_late_init,
 55         .cleanup                        = mmc_cleanup,
 56         .slots[0]       = {
 57                 .set_power              = mmc_set_power,
 58                 .ocr_mask               = MMC_VDD_32_33 | MMC_VDD_33_34,
 59                 .name                   = "mmcblk",
 60         },
 61 };
 62 
 63 static struct omap_mmc_platform_data *mmc_data[OMAP16XX_NR_MMC];
 64 
 65 void __init h2_mmc_init(void)
 66 {
 67         mmc_data[0] = &mmc1_data;
 68         omap1_init_mmc(mmc_data, OMAP16XX_NR_MMC);
 69 }
 70 
 71 #else
 72 
 73 void __init h2_mmc_init(void)
 74 {
 75 }
 76 
 77 #endif
 78 

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