1b1ad6c69SStefan Roese /*
2b1ad6c69SStefan Roese * Copyright (C) 2016 Stefan Roese <sr@denx.de>
3b1ad6c69SStefan Roese *
4b1ad6c69SStefan Roese * SPDX-License-Identifier: GPL-2.0+
5b1ad6c69SStefan Roese */
6b1ad6c69SStefan Roese
7b1ad6c69SStefan Roese #include <common.h>
8b1ad6c69SStefan Roese #include <nuvoton_nct6102d.h>
9b1ad6c69SStefan Roese #include <asm/gpio.h>
10b1ad6c69SStefan Roese #include <asm/ibmpc.h>
11b1ad6c69SStefan Roese #include <asm/pnp_def.h>
12b1ad6c69SStefan Roese
board_early_init_f(void)13b1ad6c69SStefan Roese int board_early_init_f(void)
14b1ad6c69SStefan Roese {
15b1ad6c69SStefan Roese #ifdef CONFIG_INTERNAL_UART
16b1ad6c69SStefan Roese /* Disable the legacy UART which is enabled per default */
17b1ad6c69SStefan Roese nct6102d_uarta_disable();
18b1ad6c69SStefan Roese #else
19b1ad6c69SStefan Roese /*
20b1ad6c69SStefan Roese * The FSP enables the BayTrail internal legacy UART (again).
21b1ad6c69SStefan Roese * Disable it again, so that the Nuvoton one can be used.
22b1ad6c69SStefan Roese */
23b1ad6c69SStefan Roese setup_internal_uart(0);
24b1ad6c69SStefan Roese #endif
25b1ad6c69SStefan Roese
26b1ad6c69SStefan Roese /* Disable the watchdog which is enabled per default */
27b1ad6c69SStefan Roese nct6102d_wdt_disable();
28b1ad6c69SStefan Roese
29b1ad6c69SStefan Roese return 0;
30b1ad6c69SStefan Roese }
31*1f4e2578SStefan Roese
board_late_init(void)32*1f4e2578SStefan Roese int board_late_init(void)
33*1f4e2578SStefan Roese {
34*1f4e2578SStefan Roese struct gpio_desc desc;
35*1f4e2578SStefan Roese int ret;
36*1f4e2578SStefan Roese
37*1f4e2578SStefan Roese ret = dm_gpio_lookup_name("F10", &desc);
38*1f4e2578SStefan Roese if (ret)
39*1f4e2578SStefan Roese debug("gpio ret=%d\n", ret);
40*1f4e2578SStefan Roese ret = dm_gpio_request(&desc, "xhci_hub_reset");
41*1f4e2578SStefan Roese if (ret)
42*1f4e2578SStefan Roese debug("gpio_request ret=%d\n", ret);
43*1f4e2578SStefan Roese ret = dm_gpio_set_dir_flags(&desc, GPIOD_IS_OUT);
44*1f4e2578SStefan Roese if (ret)
45*1f4e2578SStefan Roese debug("gpio dir ret=%d\n", ret);
46*1f4e2578SStefan Roese
47*1f4e2578SStefan Roese /* Pull xHCI hub reset to low (active low) */
48*1f4e2578SStefan Roese dm_gpio_set_value(&desc, 0);
49*1f4e2578SStefan Roese
50*1f4e2578SStefan Roese /* Wait at least 5 ms, so lets choose 10 to be safe */
51*1f4e2578SStefan Roese mdelay(10);
52*1f4e2578SStefan Roese
53*1f4e2578SStefan Roese /* Pull xHCI hub reset to high (active low) */
54*1f4e2578SStefan Roese dm_gpio_set_value(&desc, 1);
55*1f4e2578SStefan Roese
56*1f4e2578SStefan Roese return 0;
57*1f4e2578SStefan Roese }
58