diff options
Diffstat (limited to 'zephyr/program/nissa/src/board_power.c')
| -rw-r--r-- | zephyr/program/nissa/src/board_power.c | 169 |
1 files changed, 0 insertions, 169 deletions
diff --git a/zephyr/program/nissa/src/board_power.c b/zephyr/program/nissa/src/board_power.c deleted file mode 100644 index 858076686b..0000000000 --- a/zephyr/program/nissa/src/board_power.c +++ /dev/null @@ -1,169 +0,0 @@ -/* Copyright 2022 The ChromiumOS Authors - * Use of this source code is governed by a BSD-style license that can be - * found in the LICENSE file. - */ - -#include "gpio/gpio.h" -#include "gpio_signal.h" - -#include <zephyr/drivers/gpio.h> -#include <zephyr/logging/log.h> -#include <zephyr/sys/atomic.h> - -#include <ap_power/ap_power.h> -#include <ap_power/ap_power_events.h> -#include <ap_power/ap_power_interface.h> -#include <ap_power_override_functions.h> -#include <power_signals.h> -#include <x86_power_signals.h> - -LOG_MODULE_DECLARE(ap_pwrseq, LOG_LEVEL_INF); - -#define X86_NON_DSX_ADLP_NONPWRSEQ_FORCE_SHUTDOWN_TO_MS 5 - -static bool s0_stable; - -static void generate_ec_soc_dsw_pwrok_handler(int delay) -{ - int in_sig_val = power_signal_get(PWR_DSW_PWROK); - - if (in_sig_val != power_signal_get(PWR_EC_SOC_DSW_PWROK)) { - if (in_sig_val) - k_msleep(delay); - power_signal_set(PWR_EC_SOC_DSW_PWROK, 1); - } -} - -void board_ap_power_force_shutdown(void) -{ - int timeout_ms = X86_NON_DSX_ADLP_NONPWRSEQ_FORCE_SHUTDOWN_TO_MS; - - if (s0_stable) { - /* Enable these power signals in case of sudden shutdown */ - power_signal_enable(PWR_DSW_PWROK); - power_signal_enable(PWR_PG_PP1P05); - } - - power_signal_set(PWR_EC_SOC_DSW_PWROK, 0); - power_signal_set(PWR_EC_PCH_RSMRST, 0); - - while (power_signal_get(PWR_RSMRST) == 0 && - power_signal_get(PWR_SLP_SUS) == 0 && timeout_ms > 0) { - k_msleep(1); - timeout_ms--; - } - if (power_signal_get(PWR_SLP_SUS) == 0) { - LOG_WRN("SLP_SUS is not deasserted! Assuming G3"); - } - - if (power_signal_get(PWR_RSMRST) == 1) { - LOG_WRN("RSMRST is not deasserted! Assuming G3"); - } - - power_signal_set(PWR_EN_PP3300_A, 0); - - power_signal_set(PWR_EN_PP5000_A, 0); - - timeout_ms = X86_NON_DSX_ADLP_NONPWRSEQ_FORCE_SHUTDOWN_TO_MS; - while (power_signal_get(PWR_DSW_PWROK) && timeout_ms > 0) { - k_msleep(1); - timeout_ms--; - }; - - if (power_signal_get(PWR_DSW_PWROK)) - LOG_WRN("DSW_PWROK didn't go low! Assuming G3."); - - power_signal_disable(PWR_DSW_PWROK); - power_signal_disable(PWR_PG_PP1P05); - s0_stable = false; -} - -void board_ap_power_action_g3_s5(void) -{ - power_signal_enable(PWR_DSW_PWROK); - power_signal_enable(PWR_PG_PP1P05); - - LOG_DBG("Turning on PWR_EN_PP5000_A and PWR_EN_PP3300_A"); - power_signal_set(PWR_EN_PP5000_A, 1); - power_signal_set(PWR_EN_PP3300_A, 1); - - power_wait_signals_timeout(IN_PGOOD_ALL_CORE, - AP_PWRSEQ_DT_VALUE(wait_signal_timeout)); - - generate_ec_soc_dsw_pwrok_handler(AP_PWRSEQ_DT_VALUE(dsw_pwrok_delay)); - s0_stable = false; -} - -void board_ap_power_action_s3_s0(void) -{ - s0_stable = false; -} - -void board_ap_power_action_s0_s3(void) -{ - power_signal_enable(PWR_DSW_PWROK); - power_signal_enable(PWR_PG_PP1P05); - s0_stable = false; -} - -void board_ap_power_action_s0(void) -{ - if (s0_stable) { - return; - } - LOG_INF("Reaching S0"); - power_signal_disable(PWR_DSW_PWROK); - power_signal_disable(PWR_PG_PP1P05); - s0_stable = true; -} - -int board_ap_power_assert_pch_power_ok(void) -{ - /* Pass though PCH_PWROK */ - if (power_signal_get(PWR_PCH_PWROK) == 0) { - k_msleep(AP_PWRSEQ_DT_VALUE(pch_pwrok_delay)); - power_signal_set(PWR_PCH_PWROK, 1); - } - - return 0; -} - -bool board_ap_power_check_power_rails_enabled(void) -{ - return power_signal_get(PWR_EN_PP3300_A) && - power_signal_get(PWR_EN_PP5000_A) && - power_signal_get(PWR_EC_SOC_DSW_PWROK); -} - -int board_power_signal_get(enum power_signal signal) -{ - switch (signal) { - default: - LOG_ERR("Unknown signal for board get: %d", signal); - return -EINVAL; - - case PWR_ALL_SYS_PWRGD: - /* - * All system power is good. - * Checks that PWR_SLP_S3 is off, and - * the GPIO signal for all power good is set, - * and that the 1.05 volt line is ready. - */ - if (power_signal_get(PWR_SLP_S3)) { - return 0; - } - if (!gpio_pin_get_dt( - GPIO_DT_FROM_NODELABEL(gpio_all_sys_pwrgd))) { - return 0; - } - if (!power_signal_get(PWR_PG_PP1P05)) { - return 0; - } - return 1; - } -} - -int board_power_signal_set(enum power_signal signal, int value) -{ - return -EINVAL; -} |