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/*
* Copyright 2005-2009 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 <asm/mach-types.h>
#include <asm/mach/arch.h>
#include "usb.h"
#include "iomux.h"
/*
* USB Host1 HS port
*/
static int gpio_usbh1_active(void)
{
/* Set USBH1_STP to GPIO and toggle it */
mxc_request_iomux(MX51_PIN_USBH1_STP, IOMUX_CONFIG_GPIO |
IOMUX_CONFIG_SION);
gpio_request(IOMUX_TO_GPIO(MX51_PIN_USBH1_STP), "usbh1_stp");
gpio_direction_output(IOMUX_TO_GPIO(MX51_PIN_USBH1_STP), 0);
gpio_set_value(IOMUX_TO_GPIO(MX51_PIN_USBH1_STP), 1);
/* Signal only used on MX51-3DS for reset to PHY.*/
if (machine_is_mx51_3ds()) {
mxc_request_iomux(MX51_PIN_EIM_D17, IOMUX_CONFIG_ALT1);
mxc_iomux_set_pad(MX51_PIN_EIM_D17, PAD_CTL_DRV_HIGH |
PAD_CTL_HYS_NONE | PAD_CTL_PUE_KEEPER |
PAD_CTL_100K_PU | PAD_CTL_ODE_OPENDRAIN_NONE |
PAD_CTL_PKE_ENABLE | PAD_CTL_SRE_FAST);
gpio_request(IOMUX_TO_GPIO(MX51_PIN_EIM_D17), "eim_d17");
gpio_direction_output(IOMUX_TO_GPIO(MX51_PIN_EIM_D17), 0);
gpio_set_value(IOMUX_TO_GPIO(MX51_PIN_EIM_D17), 1);
}
msleep(100);
return 0;
}
void gpio_usbh1_setback_stp(void)
{
/* setback USBH1_STP to be function */
mxc_request_iomux(MX51_PIN_USBH1_STP, IOMUX_CONFIG_ALT0);
mxc_iomux_set_pad(MX51_PIN_USBH1_STP, PAD_CTL_SRE_FAST |
PAD_CTL_DRV_HIGH | PAD_CTL_ODE_OPENDRAIN_NONE |
PAD_CTL_PUE_KEEPER | PAD_CTL_PKE_ENABLE |
PAD_CTL_HYS_ENABLE | PAD_CTL_DDR_INPUT_CMOS |
PAD_CTL_DRV_VOT_LOW);
gpio_free(IOMUX_TO_GPIO(MX51_PIN_USBH1_STP));
}
EXPORT_SYMBOL(gpio_usbh1_setback_stp);
static void gpio_usbh1_inactive(void)
{
/* Signal only used on MX51-3DS for reset to PHY.*/
if (machine_is_mx51_3ds()) {
gpio_free(IOMUX_TO_GPIO(MX51_PIN_EIM_D17));
mxc_free_iomux(MX51_PIN_EIM_D17, IOMUX_CONFIG_GPIO);
}
mxc_free_iomux(MX51_PIN_USBH1_STP, IOMUX_CONFIG_GPIO);
gpio_free(IOMUX_TO_GPIO(MX51_PIN_USBH1_STP));
}
static struct fsl_usb2_platform_data usbh1_config = {
.name = "Host 1",
.platform_init = fsl_usb_host_init,
.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_usbh1_active,
.gpio_usb_inactive = gpio_usbh1_inactive,
.transceiver = "isp1504",
};
static struct resource usbh1_resources[] = {
[0] = {
.start = (u32) (USB_H1REGS_BASE),
.end = (u32) (USB_H1REGS_BASE + 0x1ff),
.flags = IORESOURCE_MEM,
},
[1] = {
.start = MXC_INT_USB_H1,
.flags = IORESOURCE_IRQ,
},
};
static int __init usbh1_init(void)
{
pr_debug("%s: \n", __func__);
host_pdev_register(usbh1_resources,
ARRAY_SIZE(usbh1_resources), &usbh1_config);
return 0;
}
module_init(usbh1_init);
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