forked from Minki/linux
2a12400eed
As noted by Michał Mirosław <mirqus@gmail.com>, the voltages should cover the supported voltage range, or support only one voltage. As all these boards are using a GPIO to enable the power, chances are that only 3.3V cards are supported on these boards. Reported-by: Michał Mirosław <mirqus@gmail.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
70 lines
1.6 KiB
C
70 lines
1.6 KiB
C
/*
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* linux/arch/arm/mach-omap1/board-h3-mmc.c
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*
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* Copyright (C) 2007 Instituto Nokia de Tecnologia - INdT
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* Author: Felipe Balbi <felipe.lima@indt.org.br>
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*
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* This code is based on linux/arch/arm/mach-omap2/board-n800-mmc.c, which is:
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* Copyright (C) 2006 Nokia Corporation
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 as
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* published by the Free Software Foundation.
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*/
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#include <linux/platform_device.h>
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#include <linux/i2c/tps65010.h>
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#include <plat/mmc.h>
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#include <mach/gpio.h>
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#include "board-h3.h"
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#if defined(CONFIG_MMC_OMAP) || defined(CONFIG_MMC_OMAP_MODULE)
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static int mmc_set_power(struct device *dev, int slot, int power_on,
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int vdd)
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{
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gpio_set_value(H3_TPS_GPIO_MMC_PWR_EN, power_on);
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return 0;
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}
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/*
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* H3 could use the following functions tested:
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* - mmc_get_cover_state that uses OMAP_MPUIO(1)
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* - mmc_get_wp that maybe uses OMAP_MPUIO(3)
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*/
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static struct omap_mmc_platform_data mmc1_data = {
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.nr_slots = 1,
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.dma_mask = 0xffffffff,
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.slots[0] = {
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.set_power = mmc_set_power,
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.ocr_mask = MMC_VDD_32_33 | MMC_VDD_33_34,
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.name = "mmcblk",
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},
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};
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static struct omap_mmc_platform_data *mmc_data[OMAP16XX_NR_MMC];
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void __init h3_mmc_init(void)
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{
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int ret;
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ret = gpio_request(H3_TPS_GPIO_MMC_PWR_EN, "MMC power");
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if (ret < 0)
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return;
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gpio_direction_output(H3_TPS_GPIO_MMC_PWR_EN, 0);
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mmc_data[0] = &mmc1_data;
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omap1_init_mmc(mmc_data, OMAP16XX_NR_MMC);
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}
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#else
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void __init h3_mmc_init(void)
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{
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}
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#endif
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