1// SPDX-License-Identifier: GPL-2.0+
2/*
3 * Copyright (C) 2015, Google, Inc
4 */
5
6#include <common.h>
7#include <dm.h>
8#include <init.h>
9#include <log.h>
10#include <asm/gpio.h>
11#include <dm/device-internal.h>
12#include <dm/uclass-internal.h>
13
14#define GPIO_BANKE_NAME		"gpioe"
15
16int misc_init_r(void)
17{
18	struct udevice *dev;
19	struct gpio_desc desc;
20	int ret;
21
22	/*
23	 * Turn on USB VBUS for the two USB ports on the board.
24	 * Each port's VBUS is controlled by a GPIO pin.
25	 */
26
27	ret = uclass_find_device_by_name(UCLASS_GPIO, GPIO_BANKE_NAME, &dev);
28	if (ret) {
29		debug("%s: GPIO %s device cannot be not found (ret=%d)\n",
30		      __func__, GPIO_BANKE_NAME, ret);
31		return ret;
32	}
33
34	ret = device_probe(dev);
35	if (ret) {
36		debug("%s: GPIO %s device probe failed (ret=%d)\n",
37		      __func__, GPIO_BANKE_NAME, ret);
38		return ret;
39	}
40
41	desc.dev = dev;
42	desc.flags = GPIOD_IS_OUT;
43
44	/* GPIO E8 controls the bottom port */
45	desc.offset = 8;
46
47	ret = dm_gpio_request(&desc, "usb_host_en0");
48	if (ret)
49		return ret;
50	dm_gpio_set_value(&desc, 1);
51
52	/* GPIO E9 controls the upper port */
53	desc.offset = 9;
54
55	ret = dm_gpio_request(&desc, "usb_host_en1");
56	if (ret)
57		return ret;
58
59	dm_gpio_set_value(&desc, 1);
60
61	return 0;
62}
63