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fix(lightsleep): suspend cache before goto sleep to avoid cache load wrong data after spi io isolation

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This commit is contained in:
wuzhenghui
2023-07-31 14:51:13 +08:00
parent bb845e1841
commit 1acc14bf72
1 changed files with 4 additions and 2 deletions
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6
components/esp_hw_support/sleep_modes.c
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@ -731,12 +731,13 @@ static esp_err_t IRAM_ATTR esp_sleep_start(uint32_t pd_flags, esp_sleep_mode_t m
result = ESP_OK;
#endif // !CONFIG_IDF_TARGET_ESP32H2
} else {
/* Wait cache idle in cache suspend to avoid cache load wrong data after spi io isolation */
cache_hal_suspend(CACHE_TYPE_ALL);
/* On esp32c6, only the lp_aon pad hold function can only hold the GPIO state in the active mode.
In order to avoid the leakage of the SPI cs pin, hold it here */
#if (CONFIG_PM_POWER_DOWN_PERIPHERAL_IN_LIGHT_SLEEP && CONFIG_ESP_SLEEP_FLASH_LEAKAGE_WORKAROUND)
#if !CONFIG_IDF_TARGET_ESP32H2 // ESP32H2 TODO IDF-7359: related rtcio ll func not supported yet
if(!(pd_flags & PMU_SLEEP_PD_VDDSDIO)) {
cache_hal_freeze(CACHE_TYPE_ALL);
gpio_ll_hold_en(&GPIO, SPI_CS0_GPIO_NUM);
}
#endif
@ -759,10 +760,11 @@ static esp_err_t IRAM_ATTR esp_sleep_start(uint32_t pd_flags, esp_sleep_mode_t m
#if !CONFIG_IDF_TARGET_ESP32H2 // ESP32H2 TODO IDF-7359: related rtcio ll func not supported yet
if(!(pd_flags & PMU_SLEEP_PD_VDDSDIO)) {
gpio_ll_hold_dis(&GPIO, SPI_CS0_GPIO_NUM);
cache_hal_unfreeze(CACHE_TYPE_ALL);
}
#endif
#endif
/* Resume cache for continue running */
cache_hal_resume(CACHE_TYPE_ALL);
}
#if CONFIG_ESP_SLEEP_SYSTIMER_STALL_WORKAROUND