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Commit ebc046c2 authored by Daniel Mack's avatar Daniel Mack Committed by Eric Miao
Browse files

[ARM] pxa: add MMC support for Colibri PXA300 



Added MMC support for Toradex' Colibri PXA300 module.

Signed-off-by: default avatarDaniel Mack <daniel@caiaq.de>
Signed-off-by: default avatarEric Miao <eric.miao@marvell.com>
parent 5fc9f9a1

arch/arm/mach-pxa/colibri-pxa300.c

+58 −0
Original line number Diff line number Diff line
@@ -21,6 +21,7 @@ 


#include <mach/pxa300.h>

#include <mach/colibri.h>

#include <mach/mmc.h>



#include "generic.h"

#include "devices.h"
@@ -31,6 +32,15 @@ 
static mfp_cfg_t colibri_pxa300_pin_config[] __initdata = {

	GPIO1_nCS2,			/* AX88796 chip select */

	GPIO26_GPIO | MFP_PULL_HIGH,	/* AX88796 IRQ */



#if defined(CONFIG_MMC_PXA) || defined(CONFIG_MMC_PXA_MODULE)

	GPIO7_MMC1_CLK,

	GPIO14_MMC1_CMD,

	GPIO3_MMC1_DAT0,

	GPIO4_MMC1_DAT1,

	GPIO5_MMC1_DAT2,

	GPIO6_MMC1_DAT3,

#endif

};



#if defined(CONFIG_AX88796)
@@ -80,11 +90,59 @@ static struct platform_device *colibri_pxa300_devices[] __initdata = { 
#endif

};



#if defined(CONFIG_MMC_PXA) || defined(CONFIG_MMC_PXA_MODULE)

#define MMC_DETECT_PIN   mfp_to_gpio(MFP_PIN_GPIO13)



static int colibri_pxa300_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_pxa300_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_pxa300_mci_platform_data = {

	.detect_delay	= 20,

	.ocr_mask	= MMC_VDD_32_33 | MMC_VDD_33_34,

	.init		= colibri_pxa300_mci_init,

	.exit		= colibri_pxa300_mci_exit,

};



static void __init colibri_pxa300_init_mmc(void)

{

	pxa_set_mci_info(&colibri_pxa300_mci_platform_data);

}



#else

static inline void colibri_pxa300_init_mmc(void) {}

#endif /* CONFIG_MMC_PXA */



static void __init colibri_pxa300_init(void)

{

	set_irq_type(COLIBRI_PXA300_ETH_IRQ, IRQ_TYPE_EDGE_FALLING);

	pxa3xx_mfp_config(ARRAY_AND_SIZE(colibri_pxa300_pin_config));

	platform_add_devices(ARRAY_AND_SIZE(colibri_pxa300_devices));

	colibri_pxa300_init_mmc();

}



MACHINE_START(COLIBRI300, "Toradex Colibri PXA300")