1*4882a593Smuzhiyun /*
2*4882a593Smuzhiyun * Copyright (C) 2016 Stefan Roese <sr@denx.de>
3*4882a593Smuzhiyun *
4*4882a593Smuzhiyun * SPDX-License-Identifier: GPL-2.0+
5*4882a593Smuzhiyun */
6*4882a593Smuzhiyun
7*4882a593Smuzhiyun #include <common.h>
8*4882a593Smuzhiyun #include <nuvoton_nct6102d.h>
9*4882a593Smuzhiyun #include <asm/gpio.h>
10*4882a593Smuzhiyun #include <asm/ibmpc.h>
11*4882a593Smuzhiyun #include <asm/pnp_def.h>
12*4882a593Smuzhiyun
board_early_init_f(void)13*4882a593Smuzhiyun int board_early_init_f(void)
14*4882a593Smuzhiyun {
15*4882a593Smuzhiyun #ifdef CONFIG_INTERNAL_UART
16*4882a593Smuzhiyun /* Disable the legacy UART which is enabled per default */
17*4882a593Smuzhiyun nct6102d_uarta_disable();
18*4882a593Smuzhiyun #else
19*4882a593Smuzhiyun /*
20*4882a593Smuzhiyun * The FSP enables the BayTrail internal legacy UART (again).
21*4882a593Smuzhiyun * Disable it again, so that the Nuvoton one can be used.
22*4882a593Smuzhiyun */
23*4882a593Smuzhiyun setup_internal_uart(0);
24*4882a593Smuzhiyun #endif
25*4882a593Smuzhiyun
26*4882a593Smuzhiyun /* Disable the watchdog which is enabled per default */
27*4882a593Smuzhiyun nct6102d_wdt_disable();
28*4882a593Smuzhiyun
29*4882a593Smuzhiyun return 0;
30*4882a593Smuzhiyun }
31*4882a593Smuzhiyun
board_late_init(void)32*4882a593Smuzhiyun int board_late_init(void)
33*4882a593Smuzhiyun {
34*4882a593Smuzhiyun struct gpio_desc desc;
35*4882a593Smuzhiyun int ret;
36*4882a593Smuzhiyun
37*4882a593Smuzhiyun ret = dm_gpio_lookup_name("F10", &desc);
38*4882a593Smuzhiyun if (ret)
39*4882a593Smuzhiyun debug("gpio ret=%d\n", ret);
40*4882a593Smuzhiyun ret = dm_gpio_request(&desc, "xhci_hub_reset");
41*4882a593Smuzhiyun if (ret)
42*4882a593Smuzhiyun debug("gpio_request ret=%d\n", ret);
43*4882a593Smuzhiyun ret = dm_gpio_set_dir_flags(&desc, GPIOD_IS_OUT);
44*4882a593Smuzhiyun if (ret)
45*4882a593Smuzhiyun debug("gpio dir ret=%d\n", ret);
46*4882a593Smuzhiyun
47*4882a593Smuzhiyun /* Pull xHCI hub reset to low (active low) */
48*4882a593Smuzhiyun dm_gpio_set_value(&desc, 0);
49*4882a593Smuzhiyun
50*4882a593Smuzhiyun /* Wait at least 5 ms, so lets choose 10 to be safe */
51*4882a593Smuzhiyun mdelay(10);
52*4882a593Smuzhiyun
53*4882a593Smuzhiyun /* Pull xHCI hub reset to high (active low) */
54*4882a593Smuzhiyun dm_gpio_set_value(&desc, 1);
55*4882a593Smuzhiyun
56*4882a593Smuzhiyun return 0;
57*4882a593Smuzhiyun }
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