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Commit 9f2270da authored by Eric Bénard's avatar Eric Bénard Committed by Sascha Hauer
Browse files

mach-cpuimx27: add USB Host2 and OTG support 



support copied from mach-pca100.c

Signed-off-by: default avatarEric Bénard <eric@eukrea.com>
Signed-off-by: default avatarSascha Hauer <s.hauer@pengutronix.de>
parent 62d725b1

arch/arm/mach-mx2/Kconfig

+1 −0
Original line number Diff line number Diff line
@@ -59,6 +59,7 @@ endchoice 
config MACH_CPUIMX27

	bool "Eukrea CPUIMX27 module"

	depends on MACH_MX27

	select MXC_ULPI if USB_ULPI

	help

	  Include support for Eukrea CPUIMX27 platform. This includes

	  specific configurations for the module and its peripherals.

arch/arm/mach-mx2/mach-cpuimx27.c

+77 −0
Original line number Diff line number Diff line
@@ -26,6 +26,9 @@ 
#include <linux/mtd/physmap.h>

#include <linux/platform_device.h>

#include <linux/serial_8250.h>

#include <linux/usb/otg.h>

#include <linux/usb/ulpi.h>

#include <linux/fsl_devices.h>



#include <asm/mach-types.h>

#include <asm/mach/arch.h>
@@ -39,6 +42,8 @@ 
#include <mach/iomux-mx27.h>

#include <mach/imx-uart.h>

#include <mach/mxc_nand.h>

#include <mach/mxc_ehci.h>

#include <mach/ulpi.h>



#include "devices.h"
@@ -93,6 +98,32 @@ static int eukrea_cpuimx27_pins[] = { 
	GPIO_PORTB | 27 | GPIO_GPIO | GPIO_IN,

	GPIO_PORTB | 30 | GPIO_GPIO | GPIO_IN,

#endif

	/* OTG */

	PC7_PF_USBOTG_DATA5,

	PC8_PF_USBOTG_DATA6,

	PC9_PF_USBOTG_DATA0,

	PC10_PF_USBOTG_DATA2,

	PC11_PF_USBOTG_DATA1,

	PC12_PF_USBOTG_DATA4,

	PC13_PF_USBOTG_DATA3,

	PE0_PF_USBOTG_NXT,

	PE1_PF_USBOTG_STP,

	PE2_PF_USBOTG_DIR,

	PE24_PF_USBOTG_CLK,

	PE25_PF_USBOTG_DATA7,

	/* USBH2 */

	PA0_PF_USBH2_CLK,

	PA1_PF_USBH2_DIR,

	PA2_PF_USBH2_DATA7,

	PA3_PF_USBH2_NXT,

	PA4_PF_USBH2_STP,

	PD19_AF_USBH2_DATA4,

	PD20_AF_USBH2_DATA3,

	PD21_AF_USBH2_DATA6,

	PD22_AF_USBH2_DATA0,

	PD23_AF_USBH2_DATA2,

	PD24_AF_USBH2_DATA1,

	PD26_AF_USBH2_DATA5,

};



static struct physmap_flash_data eukrea_cpuimx27_flash_data = {
@@ -186,6 +217,36 @@ static struct platform_device serial_device = { 
};

#endif



static struct mxc_usbh_platform_data otg_pdata = {

	.portsc	= MXC_EHCI_MODE_ULPI,

	.flags	= MXC_EHCI_INTERFACE_DIFF_UNI,

};



static struct mxc_usbh_platform_data usbh2_pdata = {

	.portsc	= MXC_EHCI_MODE_ULPI,

	.flags	= MXC_EHCI_INTERFACE_DIFF_UNI,

};



static struct fsl_usb2_platform_data otg_device_pdata = {

	.operating_mode = FSL_USB2_DR_DEVICE,

	.phy_mode       = FSL_USB2_PHY_ULPI,

};



static int otg_mode_host;



static int __init eukrea_cpuimx27_otg_mode(char *options)

{

	if (!strcmp(options, "host"))

		otg_mode_host = 1;

	else if (!strcmp(options, "device"))

		otg_mode_host = 0;

	else

		pr_info("otg_mode neither \"host\" nor \"device\". "

			"Defaulting to device\n");

	return 0;

}

__setup("otg_mode=", eukrea_cpuimx27_otg_mode);



static void __init eukrea_cpuimx27_init(void)

{

	mxc_gpio_setup_multiple_pins(eukrea_cpuimx27_pins,
@@ -216,6 +277,22 @@ static void __init eukrea_cpuimx27_init(void) 
	platform_device_register(&serial_device);

#endif



#if defined(CONFIG_USB_ULPI)

	if (otg_mode_host) {

		otg_pdata.otg = otg_ulpi_create(&mxc_ulpi_access_ops,

				USB_OTG_DRV_VBUS | USB_OTG_DRV_VBUS_EXT);



		mxc_register_device(&mxc_otg_host, &otg_pdata);

	}



	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);

#endif

	if (!otg_mode_host)

		mxc_register_device(&mxc_otg_udc_device, &otg_device_pdata);



#ifdef CONFIG_MACH_EUKREA_MBIMX27_BASEBOARD

	eukrea_mbimx27_baseboard_init();

#endif