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/*
* Copyright (C) 2015, Google, Inc
*
* SPDX-License-Identifier: GPL-2.0+
*/
#include <common.h>
#include <dm.h>
#include <asm/gpio.h>
#include <dm/device-internal.h>
#include <dm/uclass-internal.h>
#define GPIO_BANKE_NAME "gpioe"
int arch_early_init_r(void)
{
return 0;
}
int misc_init_r(void)
{
struct udevice *dev;
struct gpio_desc desc;
int ret;
/*
* Turn on USB VBUS for the two USB ports on the board.
* Each port's VBUS is controlled by a GPIO pin.
*/
ret = uclass_find_device_by_name(UCLASS_GPIO, GPIO_BANKE_NAME, &dev);
if (ret) {
debug("%s: GPIO %s device cannot be not found (ret=%d)\n",
__func__, GPIO_BANKE_NAME, ret);
return ret;
}
ret = device_probe(dev);
if (ret) {
debug("%s: GPIO %s device probe failed (ret=%d)\n",
__func__, GPIO_BANKE_NAME, ret);
return ret;
}
desc.dev = dev;
desc.flags = GPIOD_IS_OUT;
/* GPIO E8 controls the bottom port */
desc.offset = 8;
ret = dm_gpio_request(&desc, "usb_host_en0");
if (ret)
return ret;
dm_gpio_set_value(&desc, 1);
/* GPIO E9 controls the upper port */
desc.offset = 9;
ret = dm_gpio_request(&desc, "usb_host_en1");
if (ret)
return ret;
dm_gpio_set_value(&desc, 1);
return 0;
}
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