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/* Copyright 2022 The Chromium OS Authors. All rights reserved.
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*/
/* Nereid sub-board hardware configuration */
#include <init.h>
#include <kernel.h>
#include <sys/printk.h>
#include "gpio.h"
#include "gpio/gpio_int.h"
#include "hooks.h"
#include "usb_pd.h"
#include "task.h"
#include "sub_board.h"
static void nereid_subboard_init(void)
{
enum nissa_sub_board_type sb = nissa_get_sb_type();
/*
* Need to initialise board specific GPIOs since the
* common init code does not know about them.
* Remove once common code initialises all GPIOs, not just
* the ones with enum-names.
*/
if (sb != NISSA_SB_C_A && sb != NISSA_SB_HDMI_A) {
/* Turn off unused USB A1 GPIOs */
gpio_pin_configure_dt(
GPIO_DT_FROM_NODELABEL(gpio_sub_usb_a1_ilimit_sdp),
GPIO_DISCONNECTED);
gpio_pin_configure_dt(
GPIO_DT_FROM_ALIAS(gpio_en_usb_a1_vbus),
GPIO_DISCONNECTED);
}
if (sb == NISSA_SB_C_A || sb == NISSA_SB_C_LTE) {
/* Enable type-C port 1 */
gpio_pin_configure_dt(
GPIO_DT_FROM_ALIAS(gpio_usb_c1_int_odl),
GPIO_INPUT);
}
if (sb == NISSA_SB_HDMI_A) {
/* Disable I2C_PORT_USB_C1_TCPC */
/* TODO(b:212490923): Use pinctrl to switch from I2C */
/* Enable HDMI GPIOs */
gpio_pin_configure_dt(
GPIO_DT_FROM_ALIAS(gpio_en_rails_odl),
GPIO_OUTPUT | GPIO_OUTPUT_INIT_HIGH);
gpio_pin_configure_dt(
GPIO_DT_FROM_ALIAS(gpio_hdmi_en_odl),
GPIO_OUTPUT | GPIO_OUTPUT_INIT_HIGH);
/* Configure the interrupt separately */
gpio_pin_configure_dt(
GPIO_DT_FROM_ALIAS(gpio_hpd_odl),
GPIO_INPUT);
}
}
DECLARE_HOOK(HOOK_INIT, nereid_subboard_init, HOOK_PRIO_FIRST+1);
/*
* Enable interrupts
*/
static void board_init(void)
{
/*
* Enable USB-C interrupts.
*/
gpio_enable_dt_interrupt(GPIO_INT_FROM_NODELABEL(int_usb_c0));
if (board_get_usb_pd_port_count() == 2)
gpio_enable_dt_interrupt(GPIO_INT_FROM_NODELABEL(int_usb_c1));
}
DECLARE_HOOK(HOOK_INIT, board_init, HOOK_PRIO_DEFAULT);
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