/*
 *  arch/arm/mach-pxa/colibri-pxa3xx.c
 *
 *  Common functions for all Toradex PXA3xx modules
 *
 *  Daniel Mack <daniel@caiaq.de>
 *
 *  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/init.h>
#include <linux/kernel.h>
#include <linux/platform_device.h>
#include <linux/gpio.h>
#include <asm/mach-types.h>
#include <mach/hardware.h>
#include <asm/sizes.h>
#include <asm/mach/arch.h>
#include <asm/mach/irq.h>
#include <mach/pxa3xx-regs.h>
#include <mach/mfp-pxa300.h>
#include <mach/colibri.h>
#include <mach/mmc.h>

#include "generic.h"
#include "devices.h"

#if defined(CONFIG_MMC_PXA) || defined(CONFIG_MMC_PXA_MODULE)
static int mmc_detect_pin;

static int colibri_pxa3xx_mci_init(struct device *dev,
				   irq_handler_t colibri_mmc_detect_int,
				   void *data)
{
	int ret;

	ret = gpio_request(mmc_detect_pin, "mmc card detect");
	if (ret)
		return ret;

	gpio_direction_input(mmc_detect_pin);
	ret = request_irq(gpio_to_irq(mmc_detect_pin), colibri_mmc_detect_int,
			  IRQF_TRIGGER_RISING | IRQF_TRIGGER_FALLING,
			  "MMC card detect", data);
	if (ret) {
		gpio_free(mmc_detect_pin);
		return ret;
	}

	return 0;
}

static void colibri_pxa3xx_mci_exit(struct device *dev, void *data)
{
	free_irq(mmc_detect_pin, data);
	gpio_free(gpio_to_irq(mmc_detect_pin));
}

static struct pxamci_platform_data colibri_pxa3xx_mci_platform_data = {
	.detect_delay	= 20,
	.ocr_mask	= MMC_VDD_32_33 | MMC_VDD_33_34,
	.init		= colibri_pxa3xx_mci_init,
	.exit		= colibri_pxa3xx_mci_exit,
};

void __init colibri_pxa3xx_init_mmc(mfp_cfg_t *pins, int len, int detect_pin)
{
	pxa3xx_mfp_config(pins, len);
	mmc_detect_pin = detect_pin;
	pxa_set_mci_info(&colibri_pxa3xx_mci_platform_data);
}
#endif /* CONFIG_MMC_PXA || CONFIG_MMC_PXA_MODULE */