13a1a18ffSSimon Glass /*
23a1a18ffSSimon Glass * Copyright (C) 2015, Google, Inc
33a1a18ffSSimon Glass *
43a1a18ffSSimon Glass * SPDX-License-Identifier: GPL-2.0+
53a1a18ffSSimon Glass */
63a1a18ffSSimon Glass
73a1a18ffSSimon Glass #include <common.h>
8*70b95dedSBin Meng #include <dm.h>
95d3c2c54SGabriel Huau #include <asm/gpio.h>
10*70b95dedSBin Meng #include <dm/device-internal.h>
11*70b95dedSBin Meng #include <dm/uclass-internal.h>
12*70b95dedSBin Meng
13*70b95dedSBin Meng #define GPIO_BANKE_NAME "gpioe"
143a1a18ffSSimon Glass
misc_init_r(void)15*70b95dedSBin Meng int misc_init_r(void)
16*70b95dedSBin Meng {
17*70b95dedSBin Meng struct udevice *dev;
18*70b95dedSBin Meng struct gpio_desc desc;
19*70b95dedSBin Meng int ret;
20*70b95dedSBin Meng
21*70b95dedSBin Meng /*
22*70b95dedSBin Meng * Turn on USB VBUS for the two USB ports on the board.
23*70b95dedSBin Meng * Each port's VBUS is controlled by a GPIO pin.
24*70b95dedSBin Meng */
25*70b95dedSBin Meng
26*70b95dedSBin Meng ret = uclass_find_device_by_name(UCLASS_GPIO, GPIO_BANKE_NAME, &dev);
27*70b95dedSBin Meng if (ret) {
28*70b95dedSBin Meng debug("%s: GPIO %s device cannot be not found (ret=%d)\n",
29*70b95dedSBin Meng __func__, GPIO_BANKE_NAME, ret);
30*70b95dedSBin Meng return ret;
31*70b95dedSBin Meng }
32*70b95dedSBin Meng
33*70b95dedSBin Meng ret = device_probe(dev);
34*70b95dedSBin Meng if (ret) {
35*70b95dedSBin Meng debug("%s: GPIO %s device probe failed (ret=%d)\n",
36*70b95dedSBin Meng __func__, GPIO_BANKE_NAME, ret);
37*70b95dedSBin Meng return ret;
38*70b95dedSBin Meng }
39*70b95dedSBin Meng
40*70b95dedSBin Meng desc.dev = dev;
41*70b95dedSBin Meng desc.flags = GPIOD_IS_OUT;
42*70b95dedSBin Meng
43*70b95dedSBin Meng /* GPIO E8 controls the bottom port */
44*70b95dedSBin Meng desc.offset = 8;
45*70b95dedSBin Meng
46*70b95dedSBin Meng ret = dm_gpio_request(&desc, "usb_host_en0");
47*70b95dedSBin Meng if (ret)
48*70b95dedSBin Meng return ret;
49*70b95dedSBin Meng dm_gpio_set_value(&desc, 1);
50*70b95dedSBin Meng
51*70b95dedSBin Meng /* GPIO E9 controls the upper port */
52*70b95dedSBin Meng desc.offset = 9;
53*70b95dedSBin Meng
54*70b95dedSBin Meng ret = dm_gpio_request(&desc, "usb_host_en1");
55*70b95dedSBin Meng if (ret)
56*70b95dedSBin Meng return ret;
57*70b95dedSBin Meng
58*70b95dedSBin Meng dm_gpio_set_value(&desc, 1);
59*70b95dedSBin Meng
60*70b95dedSBin Meng return 0;
61*70b95dedSBin Meng }
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