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Commit a050c8e9 authored by Daniel Mack's avatar Daniel Mack Committed by Sascha Hauer
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ARM: MX3: add USB functions for mx31litekit 



Signed-off-by: default avatarDaniel Mack <daniel@caiaq.de>
Signed-off-by: default avatarSascha Hauer <s.hauer@pengutronix.de>
parent 84677d11

arch/arm/mach-mx3/mx31lite.c

+60 −0
Original line number Diff line number Diff line
@@ -28,6 +28,8 @@ 
#include <linux/smsc911x.h>

#include <linux/mfd/mc13783.h>

#include <linux/spi/spi.h>

#include <linux/usb/otg.h>

#include <linux/usb/ulpi.h>



#include <asm/mach-types.h>

#include <asm/mach/arch.h>
@@ -44,6 +46,8 @@ 
#include <mach/irqs.h>

#include <mach/mxc_nand.h>

#include <mach/spi.h>

#include <mach/mxc_ehci.h>

#include <mach/ulpi.h>



#include "devices.h"
@@ -126,6 +130,56 @@ static struct spi_board_info mc13783_spi_dev __initdata = { 
	.irq		= IOMUX_TO_IRQ(MX31_PIN_GPIO1_3),

};



/*

 * USB

 */



#define USB_PAD_CFG (PAD_CTL_DRV_MAX | PAD_CTL_SRE_FAST | PAD_CTL_HYS_CMOS | \

			PAD_CTL_ODE_CMOS | PAD_CTL_100K_PU)



static int usbh2_init(struct platform_device *pdev)

{

	int pins[] = {

		MX31_PIN_USBH2_DATA0__USBH2_DATA0,

		MX31_PIN_USBH2_DATA1__USBH2_DATA1,

		MX31_PIN_USBH2_CLK__USBH2_CLK,

		MX31_PIN_USBH2_DIR__USBH2_DIR,

		MX31_PIN_USBH2_NXT__USBH2_NXT,

		MX31_PIN_USBH2_STP__USBH2_STP,

	};



	mxc_iomux_setup_multiple_pins(pins, ARRAY_SIZE(pins), "USB H2");



	mxc_iomux_set_pad(MX31_PIN_USBH2_CLK, USB_PAD_CFG);

	mxc_iomux_set_pad(MX31_PIN_USBH2_DIR, USB_PAD_CFG);

	mxc_iomux_set_pad(MX31_PIN_USBH2_NXT, USB_PAD_CFG);

	mxc_iomux_set_pad(MX31_PIN_USBH2_STP, USB_PAD_CFG);

	mxc_iomux_set_pad(MX31_PIN_USBH2_DATA0, USB_PAD_CFG);

	mxc_iomux_set_pad(MX31_PIN_USBH2_DATA1, USB_PAD_CFG);

	mxc_iomux_set_pad(MX31_PIN_SRXD6, USB_PAD_CFG);

	mxc_iomux_set_pad(MX31_PIN_STXD6, USB_PAD_CFG);

	mxc_iomux_set_pad(MX31_PIN_SFS3, USB_PAD_CFG);

	mxc_iomux_set_pad(MX31_PIN_SCK3, USB_PAD_CFG);

	mxc_iomux_set_pad(MX31_PIN_SRXD3, USB_PAD_CFG);

	mxc_iomux_set_pad(MX31_PIN_STXD3, USB_PAD_CFG);



	mxc_iomux_set_gpr(MUX_PGP_UH2, true);



	/* chip select */

	mxc_iomux_alloc_pin(IOMUX_MODE(MX31_PIN_DTR_DCE1, IOMUX_CONFIG_GPIO),

				"USBH2_CS");

	gpio_request(IOMUX_TO_GPIO(MX31_PIN_DTR_DCE1), "USBH2 CS");

	gpio_direction_output(IOMUX_TO_GPIO(MX31_PIN_DTR_DCE1), 0);



	return 0;

}



static struct mxc_usbh_platform_data usbh2_pdata = {

	.init   = usbh2_init,

	.portsc = MXC_EHCI_MODE_ULPI | MXC_EHCI_UTMI_8BIT,

	.flags  = MXC_EHCI_POWER_PINS_ENABLED,

};



/*

 * This structure defines the MX31 memory map.

 */
@@ -177,6 +231,12 @@ static void __init mxc_board_init(void) 
	mxc_register_device(&mxc_spi_device1, &spi1_pdata);

	spi_register_board_info(&mc13783_spi_dev, 1);



	/* USB */

	usbh2_pdata.otg = otg_ulpi_create(&mxc_ulpi_access_ops,

				USB_OTG_DRV_VBUS | USB_OTG_DRV_VBUS_EXT);



	mxc_register_device(&mxc_usbh2, &usbh2_pdata);



	/* SMSC9117 IRQ pin */

	ret = gpio_request(IOMUX_TO_GPIO(MX31_PIN_SFS6), "sms9117-irq");

	if (ret)