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