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/*
* Copyright (C) 2005-2010 Freescale Semiconductor, Inc. All Rights Reserved.
*/
/*
* The code contained herein is licensed under the GNU General Public
* License. You may obtain a copy of the GNU General Public License
* Version 2 or later at the following locations:
*
* http://www.opensource.org/licenses/gpl-license.html
* http://www.gnu.org/copyleft/gpl.html
*/
#include <linux/kernel.h>
#include <linux/types.h>
#include <linux/delay.h>
#include <linux/platform_device.h>
#include <linux/fsl_devices.h>
#include <mach/arc_otg.h>
#include "usb.h"
#include "iomux.h"
#include "mx51_pins.h"
/*
* USB Host2 HS port
*/
static int gpio_usbh2_active(void)
{
/* Set USBH2_STP to GPIO and toggle it */
mxc_request_iomux(MX51_PIN_EIM_A26, IOMUX_CONFIG_GPIO);
gpio_request(IOMUX_TO_GPIO(MX51_PIN_EIM_A26), "eim_a26");
gpio_direction_output(IOMUX_TO_GPIO(MX51_PIN_EIM_A26), 0);
gpio_set_value(IOMUX_TO_GPIO(MX51_PIN_EIM_A26), 1);
msleep(100);
return 0;
}
static void gpio_usbh2_inactive(void)
{
gpio_free(IOMUX_TO_GPIO(MX51_PIN_EIM_A26));
mxc_free_iomux(MX51_PIN_EIM_A26, IOMUX_CONFIG_GPIO);
}
static int fsl_usb_host_init_ext(struct platform_device *pdev)
{
int ret = fsl_usb_host_init(pdev);
if (ret)
return ret;
/* setback USBH2_STP to be function */
mxc_request_iomux(MX51_PIN_EIM_A26, IOMUX_CONFIG_ALT2);
return 0;
}
static struct fsl_usb2_platform_data usbh2_config = {
.name = "Host 2",
.platform_init = fsl_usb_host_init_ext,
.platform_uninit = fsl_usb_host_uninit,
.operating_mode = FSL_USB2_MPH_HOST,
.phy_mode = FSL_USB2_PHY_ULPI,
.power_budget = 500, /* 500 mA max power */
.gpio_usb_active = gpio_usbh2_active,
.gpio_usb_inactive = gpio_usbh2_inactive,
.transceiver = "isp1504",
};
void __init mx51_usbh2_init(void)
{
mxc_register_device(&mxc_usbh2_device, &usbh2_config);
}
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