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/* Copyright 2020 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.
*/
/* Dedede family-specific configuration */
#include "adc.h"
#include "chipset.h"
#include "common.h"
#include "gpio.h"
#include "hooks.h"
#include "intel_x86.h"
/*
* Dedede does not use hibernate wake pins, but the super low power "Z-state"
* instead in which the EC is powered off entirely. Power will be restored to
* the EC once one of the wake up events occurs. These events are ACOK, lid
* open, and a power button press.
*/
const enum gpio_signal hibernate_wake_pins[] = {};
const int hibernate_wake_pins_used;
uint32_t pp3300_a_pgood;
__override int intel_x86_get_pg_ec_dsw_pwrok(void)
{
/*
* The PP3300_A rail is an input to generate DPWROK. Assuming that
* power is good if voltage is at least 80% of nominal level. We cannot
* read the ADC values during an interrupt, therefore, this power good
* value is updated via ADC threshold interrupts.
*/
return pp3300_a_pgood;
}
__override int intel_x86_get_pg_ec_all_sys_pwrgd(void)
{
/*
* ALL_SYS_PWRGD is an AND of both DRAM PGOOD and VCCST PGOOD.
*/
return gpio_get_level(GPIO_PG_PP1050_ST_OD) &&
gpio_get_level(GPIO_PG_DRAM_OD);
}
__override void board_jsl_all_sys_pwrgd(int value)
{
/*
* ALL_SYS_PWRGD is an AND of both DRAM PGOOD and VCCST PGOOD.
*/
gpio_set_level(GPIO_ALL_SYS_PWRGD, value);
}
__override int power_signal_get_level(enum gpio_signal signal)
{
if (signal == GPIO_PG_EC_DSW_PWROK)
return intel_x86_get_pg_ec_dsw_pwrok();
if (signal == GPIO_PG_EC_ALL_SYS_PWRGD)
return intel_x86_get_pg_ec_all_sys_pwrgd();
if (IS_ENABLED(CONFIG_HOSTCMD_ESPI)) {
/* Check signal is from GPIOs or VWs */
if (espi_signal_is_vw(signal))
return espi_vw_get_wire(signal);
}
return gpio_get_level(signal);
}
void baseboard_chipset_startup(void)
{
/* Allow keyboard backlight to be enabled */
gpio_set_level(GPIO_EN_KB_BL, 1);
}
DECLARE_HOOK(HOOK_CHIPSET_STARTUP, baseboard_chipset_startup,
HOOK_PRIO_DEFAULT);
void baseboard_chipset_shutdown(void)
{
/* Turn off the keyboard backlight if it's on. */
gpio_set_level(GPIO_EN_KB_BL, 0);
}
DECLARE_HOOK(HOOK_CHIPSET_SHUTDOWN, baseboard_chipset_shutdown,
HOOK_PRIO_DEFAULT);
void board_hibernate_late(void)
{
/*
* Turn on the Z state. This will not return as it will cut power to
* the EC.
*/
gpio_set_level(GPIO_EN_SLP_Z, 1);
}
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