| // SPDX-License-Identifier: GPL-2.0+ |
| /* |
| * Copyright (C) 2016 Stefan Roese <sr@denx.de> |
| */ |
| |
| #include <init.h> |
| #include <log.h> |
| #include <nuvoton_nct6102d.h> |
| #include <asm/gpio.h> |
| #include <asm/ibmpc.h> |
| #include <asm/pnp_def.h> |
| #include <linux/delay.h> |
| |
| int board_early_init_f(void) |
| { |
| #ifdef CONFIG_INTERNAL_UART |
| /* Disable the legacy UART which is enabled per default */ |
| nct6102d_uarta_disable(); |
| #else |
| /* |
| * The FSP enables the BayTrail internal legacy UART (again). |
| * Disable it again, so that the Nuvoton one can be used. |
| */ |
| setup_internal_uart(0); |
| #endif |
| |
| /* Disable the watchdog which is enabled per default */ |
| nct6102d_wdt_disable(); |
| |
| return 0; |
| } |
| |
| int board_late_init(void) |
| { |
| struct gpio_desc desc; |
| int ret; |
| |
| ret = dm_gpio_lookup_name("F10", &desc); |
| if (ret) |
| debug("gpio ret=%d\n", ret); |
| ret = dm_gpio_request(&desc, "xhci_hub_reset"); |
| if (ret) |
| debug("gpio_request ret=%d\n", ret); |
| ret = dm_gpio_set_dir_flags(&desc, GPIOD_IS_OUT); |
| if (ret) |
| debug("gpio dir ret=%d\n", ret); |
| |
| /* Pull xHCI hub reset to low (active low) */ |
| dm_gpio_set_value(&desc, 0); |
| |
| /* Wait at least 5 ms, so lets choose 10 to be safe */ |
| mdelay(10); |
| |
| /* Pull xHCI hub reset to high (active low) */ |
| dm_gpio_set_value(&desc, 1); |
| |
| return 0; |
| } |