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change(esp_hw_support): support optional delay for DPD entry and exit

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This commit is contained in:
hebinglin
2026-06-25 16:00:49 +08:00
parent 673d6955cc
commit fba19e1d9a
3 changed files with 30 additions and 29 deletions
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components/spi_flash/include/esp_private/spi_flash_os.h
+5 -3
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@@ -1,5 +1,5 @@
/*
* SPDX-FileCopyrightText: 2019-2025 Espressif Systems (Shanghai) CO LTD
* SPDX-FileCopyrightText: 2019-2026 Espressif Systems (Shanghai) CO LTD
*
* SPDX-License-Identifier: Apache-2.0
*/
@@ -178,13 +178,15 @@ uint32_t spi_flash_dpd_get_exit_duration(void);
/**
* @brief Enable or disable SPI flash deep power-down mode.
*
* @param bool status. True: flash enable deep power-down mode. False: flash disable deep power-down mode.
* @param enable True to enter deep power-down mode, false to exit.
* @param wait_delay If true, wait tDP (enter) or tRES1 (exit) after the command.
* If false, skip the delay; the caller must ensure timing is met elsewhere
*
* @note If using self-provided flash (not the chip’s factory-default flash), consult its datasheet to use this API safely.
*
* @return ESP_OK if success.
*/
esp_err_t spi_flash_enable_deep_power_down_mode(bool enable);
esp_err_t spi_flash_enable_deep_power_down_mode(bool enable, bool wait_delay);
#endif
#if SOC_SPI_MEM_SUPPORT_WRAP
components/spi_flash/spi_flash_dpd_enable.c
+22 -23
View File
@@ -1,5 +1,5 @@
/*
* SPDX-FileCopyrightText: 2025 Espressif Systems (Shanghai) CO LTD
* SPDX-FileCopyrightText: 2025-2026 Espressif Systems (Shanghai) CO LTD
*
* SPDX-License-Identifier: Apache-2.0
*/
@@ -62,31 +62,30 @@ uint32_t spi_flash_dpd_get_exit_duration(void)
return SPI_FLASH_TRES1_SAFE_VAL_US;
}
static esp_err_t spi_flash_enter_dpd(void)
static esp_err_t spi_flash_enter_dpd(bool wait_delay)
{
esp_err_t ret = spi_flash_hal_enter_dpd_mode(esp_flash_default_chip->host);
esp_rom_delay_us(spi_flash_dpd_get_enter_duration());
return ret;
}
static esp_err_t spi_flash_exit_dpd(void)
{
esp_err_t ret = spi_flash_hal_exit_dpd_mode(esp_flash_default_chip->host);
esp_rom_delay_us(spi_flash_dpd_get_exit_duration());
return ret;
}
esp_err_t spi_flash_enable_deep_power_down_mode(bool enable)
{
esp_err_t ret = ESP_OK;
if (enable) {
ret = spi_flash_enter_dpd();
} else {
ret = spi_flash_exit_dpd();
if (wait_delay) {
esp_rom_delay_us(spi_flash_dpd_get_enter_duration());
}
return ret;
}
static esp_err_t spi_flash_exit_dpd(bool wait_delay)
{
esp_err_t ret = spi_flash_hal_exit_dpd_mode(esp_flash_default_chip->host);
if (wait_delay) {
esp_rom_delay_us(spi_flash_dpd_get_exit_duration());
}
return ret;
}
esp_err_t spi_flash_enable_deep_power_down_mode(bool enable, bool wait_delay)
{
if (enable) {
return spi_flash_enter_dpd(wait_delay);
}
return spi_flash_exit_dpd(wait_delay);
}