Commit 13b9d47e authored by Richard Purdie's avatar Richard Purdie Committed by Russell King
Browse files

[ARM] 2914/1: PXA Poodle: Add MMC and UDC support 



Patch from Richard Purdie

This patch adds MMC and UDC support to the PXA Poodle platform.

Signed-off-by: default avatarRichard Purdie <rpurdie@rpsys.net>
Signed-off-by: default avatarRussell King <rmk+kernel@arm.linux.org.uk>
parent f29d2455

arch/arm/mach-pxa/poodle.c

+82 −0
Original line number Diff line number Diff line
@@ -30,6 +30,8 @@ 


#include <asm/arch/pxa-regs.h>

#include <asm/arch/irq.h>

#include <asm/arch/mmc.h>

#include <asm/arch/udc.h>

#include <asm/arch/poodle.h>

#include <asm/arch/pxafb.h>
@@ -93,6 +95,83 @@ static struct platform_device locomo_device = { 
	.resource	= locomo_resources,

};





/*

 * MMC/SD Device

 *

 * The card detect interrupt isn't debounced so we delay it by 250ms

 * to give the card a chance to fully insert/eject.

 */

static struct pxamci_platform_data poodle_mci_platform_data;



static int poodle_mci_init(struct device *dev, irqreturn_t (*poodle_detect_int)(int, void *, struct pt_regs *), void *data)

{

	int err;



	/* setup GPIO for PXA25x MMC controller	*/

	pxa_gpio_mode(GPIO6_MMCCLK_MD);

	pxa_gpio_mode(GPIO8_MMCCS0_MD);

	pxa_gpio_mode(POODLE_GPIO_nSD_DETECT | GPIO_IN);

	pxa_gpio_mode(POODLE_GPIO_SD_PWR | GPIO_OUT);



	poodle_mci_platform_data.detect_delay = msecs_to_jiffies(250);



	err = request_irq(POODLE_IRQ_GPIO_nSD_DETECT, poodle_detect_int, SA_INTERRUPT,

			     "MMC card detect", data);

	if (err) {

		printk(KERN_ERR "poodle_mci_init: MMC/SD: can't request MMC card detect IRQ\n");

		return -1;

	}



	set_irq_type(POODLE_IRQ_GPIO_nSD_DETECT, IRQT_BOTHEDGE);



	return 0;

}



static void poodle_mci_setpower(struct device *dev, unsigned int vdd)

{

	struct pxamci_platform_data* p_d = dev->platform_data;



	if (( 1 << vdd) & p_d->ocr_mask)

		GPSR1 = GPIO_bit(POODLE_GPIO_SD_PWR);

	else

		GPCR1 = GPIO_bit(POODLE_GPIO_SD_PWR);

}



static void poodle_mci_exit(struct device *dev, void *data)

{

	free_irq(POODLE_IRQ_GPIO_nSD_DETECT, data);

}



static struct pxamci_platform_data poodle_mci_platform_data = {

	.ocr_mask	= MMC_VDD_32_33|MMC_VDD_33_34,

	.init 		= poodle_mci_init,

	.setpower 	= poodle_mci_setpower,

	.exit		= poodle_mci_exit,

};





/*

 * USB Device Controller

 */

static void poodle_udc_command(int cmd)

{

	switch(cmd)	{

	case PXA2XX_UDC_CMD_CONNECT:

		GPSR(POODLE_GPIO_USB_PULLUP) = GPIO_bit(POODLE_GPIO_USB_PULLUP);

		break;

	case PXA2XX_UDC_CMD_DISCONNECT:

		GPCR(POODLE_GPIO_USB_PULLUP) = GPIO_bit(POODLE_GPIO_USB_PULLUP);

		break;

	}

}



static struct pxa2xx_udc_mach_info udc_info __initdata = {

	/* no connect GPIO; poodle can't tell connection status */

	.udc_command		= poodle_udc_command,

};





/* PXAFB device */

static struct pxafb_mach_info poodle_fb_info __initdata = {

	.pixclock	= 144700,
@@ -164,6 +243,9 @@ static void __init poodle_init(void) 
        GPSR2 = 0x00000000;



	set_pxa_fb_info(&poodle_fb_info);

	pxa_gpio_mode(POODLE_GPIO_USB_PULLUP | GPIO_OUT);

	pxa_set_udc_info(&udc_info);

	pxa_set_mci_info(&poodle_mci_platform_data);



	scoop_num = 1;

	scoop_devs = &poodle_pcmcia_scoop[0];