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Merge branch 'fix/fix_current_leakage_after_ext_osc_detect_failed' into 'master'

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fix(esp_hw_support): fix current leakage if ext32k slow clock source not exists

Closes PM-385

See merge request espressif/esp-idf!38140
This commit is contained in:
Wu Zheng Hui
2025-04-09 13:52:40 +08:00
parent c5a53842d1 c84757d35e
commit 1304fdc364
33 changed files with 216 additions and 48 deletions
Download Patch File Download Diff File Expand all files Collapse all files

7
components/esp_hw_support/port/esp32/include/soc/rtc.h
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@ -1,5 +1,5 @@
/*
* SPDX-FileCopyrightText: 2015-2024 Espressif Systems (Shanghai) CO LTD
* SPDX-FileCopyrightText: 2015-2025 Espressif Systems (Shanghai) CO LTD
*
* SPDX-License-Identifier: Apache-2.0
*/
@ -172,6 +172,11 @@ void rtc_clk_32k_enable(bool en);
*/
void rtc_clk_32k_enable_external(void);
/**
* @brief Disable 32 kHz XTAL oscillator input.
*/
void rtc_clk_32k_disable_external(void);
/**
* @brief Get the state of 32k XTAL oscillator
* @return true if 32k XTAL oscillator has been enabled

7
components/esp_hw_support/port/esp32/rtc_clk.c
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@ -1,5 +1,5 @@
/*
* SPDX-FileCopyrightText: 2015-2024 Espressif Systems (Shanghai) CO LTD
* SPDX-FileCopyrightText: 2015-2025 Espressif Systems (Shanghai) CO LTD
*
* SPDX-License-Identifier: Apache-2.0
*/
@ -115,6 +115,11 @@ void rtc_clk_32k_enable_external(void)
rtc_clk_32k_enable_common(CLK_LL_XTAL32K_ENABLE_MODE_EXTERNAL);
}
void rtc_clk_32k_disable_external(void)
{
clk_ll_xtal32k_disable();
}
/* Helping external 32kHz crystal to start up.
* External crystal connected to outputs GPIO32 GPIO33.
* Forms N pulses with a frequency of about 32KHz on the outputs of the crystal.

7
components/esp_hw_support/port/esp32c2/include/soc/rtc.h
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@ -1,5 +1,5 @@
/*
* SPDX-FileCopyrightText: 2020-2024 Espressif Systems (Shanghai) CO LTD
* SPDX-FileCopyrightText: 2020-2025 Espressif Systems (Shanghai) CO LTD
*
* SPDX-License-Identifier: Apache-2.0
*/
@ -257,6 +257,11 @@ void rtc_clk_xtal_freq_update(soc_xtal_freq_t xtal_freq);
*/
void rtc_clk_32k_enable_external(void);
/**
* @brief Disable 32KHz external oscillator
*/
void rtc_clk_32k_disable_external(void);
/**
* @brief Enable or disable 8 MHz internal oscillator
*

8
components/esp_hw_support/port/esp32c2/rtc_clk.c
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@ -1,5 +1,5 @@
/*
* SPDX-FileCopyrightText: 2020-2024 Espressif Systems (Shanghai) CO LTD
* SPDX-FileCopyrightText: 2020-2025 Espressif Systems (Shanghai) CO LTD
*
* SPDX-License-Identifier: Apache-2.0
*/
@ -37,6 +37,12 @@ void rtc_clk_32k_enable_external(void)
REG_SET_BIT(RTC_CNTL_PAD_HOLD_REG, BIT(EXT_OSC_SLOW_GPIO_NUM));
}
void rtc_clk_32k_disable_external(void)
{
PIN_INPUT_DISABLE(IO_MUX_GPIO0_REG);
REG_CLR_BIT(RTC_CNTL_PAD_HOLD_REG, BIT(EXT_OSC_SLOW_GPIO_NUM));
}
void rtc_clk_8m_enable(bool clk_8m_en, bool d256_en)
{
if (clk_8m_en) {

7
components/esp_hw_support/port/esp32c3/include/soc/rtc.h
View File

@ -1,5 +1,5 @@
/*
* SPDX-FileCopyrightText: 2020-2024 Espressif Systems (Shanghai) CO LTD
* SPDX-FileCopyrightText: 2020-2025 Espressif Systems (Shanghai) CO LTD
*
* SPDX-License-Identifier: Apache-2.0
*/
@ -263,6 +263,11 @@ void rtc_clk_32k_enable(bool en);
*/
void rtc_clk_32k_enable_external(void);
/**
* @brief Disable 32 kHz XTAL oscillator input.
*/
void rtc_clk_32k_disable_external(void);
/**
* @brief Get the state of 32k XTAL oscillator
* @return true if 32k XTAL oscillator has been enabled

9
components/esp_hw_support/port/esp32c3/rtc_clk.c
View File

@ -1,5 +1,5 @@
/*
* SPDX-FileCopyrightText: 2020-2024 Espressif Systems (Shanghai) CO LTD
* SPDX-FileCopyrightText: 2020-2025 Espressif Systems (Shanghai) CO LTD
*
* SPDX-License-Identifier: Apache-2.0
*/
@ -56,6 +56,13 @@ void rtc_clk_32k_enable_external(void)
clk_ll_xtal32k_enable(CLK_LL_XTAL32K_ENABLE_MODE_EXTERNAL);
}
void rtc_clk_32k_disable_external(void)
{
PIN_INPUT_DISABLE(IO_MUX_GPIO0_REG);
CLEAR_PERI_REG_MASK(RTC_CNTL_PAD_HOLD_REG, RTC_CNTL_GPIO_PIN0_HOLD);
clk_ll_xtal32k_disable();
}
void rtc_clk_32k_bootstrap(uint32_t cycle)
{
/* No special bootstrapping needed for ESP32-C3, 'cycle' argument is to keep the signature

7
components/esp_hw_support/port/esp32c5/include/soc/rtc.h
View File

@ -1,5 +1,5 @@
/*
* SPDX-FileCopyrightText: 2023-2024 Espressif Systems (Shanghai) CO LTD
* SPDX-FileCopyrightText: 2023-2025 Espressif Systems (Shanghai) CO LTD
*
* SPDX-License-Identifier: Apache-2.0
*/
@ -181,6 +181,11 @@ void rtc_clk_32k_enable(bool en);
*/
void rtc_clk_32k_enable_external(void);
/**
* @brief Disable 32 kHz XTAL oscillator input.
*/
void rtc_clk_32k_disable_external(void);
/**
* @brief Get the state of 32k XTAL oscillator
* @return true if 32k XTAL oscillator has been enabled

9
components/esp_hw_support/port/esp32c5/rtc_clk.c
View File

@ -1,5 +1,5 @@
/*
* SPDX-FileCopyrightText: 2023-2024 Espressif Systems (Shanghai) CO LTD
* SPDX-FileCopyrightText: 2023-2025 Espressif Systems (Shanghai) CO LTD
*
* SPDX-License-Identifier: Apache-2.0
*/
@ -58,6 +58,13 @@ void rtc_clk_32k_enable_external(void)
clk_ll_xtal32k_enable(CLK_LL_XTAL32K_ENABLE_MODE_EXTERNAL);
}
void rtc_clk_32k_disable_external(void)
{
gpio_ll_input_disable(&GPIO, EXT_OSC_SLOW_GPIO_NUM);
REG_CLR_BIT(LP_AON_GPIO_HOLD0_REG, BIT(EXT_OSC_SLOW_GPIO_NUM));
clk_ll_xtal32k_disable();
}
void rtc_clk_32k_bootstrap(uint32_t cycle)
{
/* No special bootstrapping needed for ESP32-C5, 'cycle' argument is to keep the signature

7
components/esp_hw_support/port/esp32c6/include/soc/rtc.h
View File

@ -1,5 +1,5 @@
/*
* SPDX-FileCopyrightText: 2022-2024 Espressif Systems (Shanghai) CO LTD
* SPDX-FileCopyrightText: 2022-2025 Espressif Systems (Shanghai) CO LTD
*
* SPDX-License-Identifier: Apache-2.0
*/
@ -205,6 +205,11 @@ void rtc_clk_32k_enable(bool en);
*/
void rtc_clk_32k_enable_external(void);
/**
* @brief Disable 32 kHz XTAL oscillator input.
*/
void rtc_clk_32k_disable_external(void);
/**
* @brief Get the state of 32k XTAL oscillator
* @return true if 32k XTAL oscillator has been enabled

9
components/esp_hw_support/port/esp32c6/rtc_clk.c
View File

@ -1,5 +1,5 @@
/*
* SPDX-FileCopyrightText: 2022-2024 Espressif Systems (Shanghai) CO LTD
* SPDX-FileCopyrightText: 2022-2025 Espressif Systems (Shanghai) CO LTD
*
* SPDX-License-Identifier: Apache-2.0
*/
@ -56,6 +56,13 @@ void rtc_clk_32k_enable_external(void)
clk_ll_xtal32k_enable(CLK_LL_XTAL32K_ENABLE_MODE_EXTERNAL);
}
void rtc_clk_32k_disable_external(void)
{
PIN_INPUT_DISABLE(IO_MUX_GPIO0_REG);
REG_CLR_BIT(LP_AON_GPIO_HOLD0_REG, BIT(EXT_OSC_SLOW_GPIO_NUM));
clk_ll_xtal32k_disable();
}
void rtc_clk_32k_bootstrap(uint32_t cycle)
{
/* No special bootstrapping needed for ESP32-C6, 'cycle' argument is to keep the signature

7
components/esp_hw_support/port/esp32c61/include/soc/rtc.h
View File

@ -1,5 +1,5 @@
/*
* SPDX-FileCopyrightText: 2024 Espressif Systems (Shanghai) CO LTD
* SPDX-FileCopyrightText: 2024-2025 Espressif Systems (Shanghai) CO LTD
*
* SPDX-License-Identifier: Apache-2.0
*/
@ -181,6 +181,11 @@ void rtc_clk_32k_enable(bool en);
*/
void rtc_clk_32k_enable_external(void);
/**
* @brief Disable 32 kHz XTAL oscillator input.
*/
void rtc_clk_32k_disable_external(void);
/**
* @brief Get the state of 32k XTAL oscillator
* @return true if 32k XTAL oscillator has been enabled

9
components/esp_hw_support/port/esp32c61/rtc_clk.c
View File

@ -1,5 +1,5 @@
/*
* SPDX-FileCopyrightText: 2024 Espressif Systems (Shanghai) CO LTD
* SPDX-FileCopyrightText: 2024-2025 Espressif Systems (Shanghai) CO LTD
*
* SPDX-License-Identifier: Apache-2.0
*/
@ -56,6 +56,13 @@ void rtc_clk_32k_enable_external(void)
clk_ll_xtal32k_enable(CLK_LL_XTAL32K_ENABLE_MODE_EXTERNAL);
}
void rtc_clk_32k_disable_external(void)
{
gpio_ll_input_disable(&GPIO, EXT_OSC_SLOW_GPIO_NUM);
REG_CLR_BIT(LP_AON_GPIO_HOLD0_REG, BIT(EXT_OSC_SLOW_GPIO_NUM));
clk_ll_xtal32k_disable();
}
void rtc_clk_32k_bootstrap(uint32_t cycle)
{
/* No special bootstrapping needed for ESP32-C61, 'cycle' argument is to keep the signature

7
components/esp_hw_support/port/esp32h2/include/soc/rtc.h
View File

@ -1,5 +1,5 @@
/*
* SPDX-FileCopyrightText: 2020-2024 Espressif Systems (Shanghai) CO LTD
* SPDX-FileCopyrightText: 2020-2025 Espressif Systems (Shanghai) CO LTD
*
* SPDX-License-Identifier: Apache-2.0
*/
@ -207,6 +207,11 @@ void rtc_clk_32k_enable(bool en);
*/
void rtc_clk_32k_enable_external(void);
/**
* @brief Disable 32 kHz XTAL oscillator input.
*/
void rtc_clk_32k_disable_external(void);
/**
* @brief Get the state of 32k XTAL oscillator
* @return true if 32k XTAL oscillator has been enabled

9
components/esp_hw_support/port/esp32h2/rtc_clk.c
View File

@ -1,5 +1,5 @@
/*
* SPDX-FileCopyrightText: 2022-2024 Espressif Systems (Shanghai) CO LTD
* SPDX-FileCopyrightText: 2022-2025 Espressif Systems (Shanghai) CO LTD
*
* SPDX-License-Identifier: Apache-2.0
*/
@ -56,6 +56,13 @@ void rtc_clk_32k_enable_external(void)
clk_ll_xtal32k_enable(CLK_LL_XTAL32K_ENABLE_MODE_EXTERNAL);
}
void rtc_clk_32k_disable_external(void)
{
PIN_INPUT_DISABLE(IO_MUX_GPIO13_REG);
REG_CLR_BIT(LP_AON_GPIO_HOLD0_REG, BIT(EXT_OSC_SLOW_GPIO_NUM));
clk_ll_xtal32k_disable();
}
void rtc_clk_32k_bootstrap(uint32_t cycle)
{
/* No special bootstrapping needed for ESP32-H2, 'cycle' argument is to keep the signature

7
components/esp_hw_support/port/esp32h21/include/soc/rtc.h
View File

@ -1,5 +1,5 @@
/*
* SPDX-FileCopyrightText: 2024 Espressif Systems (Shanghai) CO LTD
* SPDX-FileCopyrightText: 2024-2025 Espressif Systems (Shanghai) CO LTD
*
* SPDX-License-Identifier: Apache-2.0
*/
@ -207,6 +207,11 @@ void rtc_clk_32k_enable(bool en);
*/
void rtc_clk_32k_enable_external(void);
/**
* @brief Disable 32 kHz XTAL oscillator input.
*/
void rtc_clk_32k_disable_external(void);
/**
* @brief Get the state of 32k XTAL oscillator
* @return true if 32k XTAL oscillator has been enabled

9
components/esp_hw_support/port/esp32h21/rtc_clk.c
View File

@ -1,5 +1,5 @@
/*
* SPDX-FileCopyrightText: 2024 Espressif Systems (Shanghai) CO LTD
* SPDX-FileCopyrightText: 2024-2025 Espressif Systems (Shanghai) CO LTD
*
* SPDX-License-Identifier: Apache-2.0
*/
@ -56,6 +56,13 @@ void rtc_clk_32k_enable_external(void)
clk_ll_xtal32k_enable(CLK_LL_XTAL32K_ENABLE_MODE_EXTERNAL);
}
void rtc_clk_32k_disable_external(void)
{
PIN_INPUT_DISABLE(IO_MUX_GPIO13_REG);
REG_CLR_BIT(LP_AON_GPIO_HOLD0_REG, BIT(EXT_OSC_SLOW_GPIO_NUM));
clk_ll_xtal32k_disable();
}
void rtc_clk_32k_bootstrap(uint32_t cycle)
{
/* No special bootstrapping needed for ESP32-H2, 'cycle' argument is to keep the signature

5
components/esp_hw_support/port/esp32h4/include/soc/rtc.h
View File

@ -207,6 +207,11 @@ void rtc_clk_32k_enable(bool en);
*/
void rtc_clk_32k_enable_external(void);
/**
* @brief Disable 32 kHz XTAL oscillator input.
*/
void rtc_clk_32k_disable_external(void);
/**
* @brief Get the state of 32k XTAL oscillator
* @return true if 32k XTAL oscillator has been enabled

7
components/esp_hw_support/port/esp32h4/rtc_clk.c
View File

@ -55,6 +55,13 @@ void rtc_clk_32k_enable_external(void)
clk_ll_xtal32k_enable(CLK_LL_XTAL32K_ENABLE_MODE_EXTERNAL);
}
void rtc_clk_32k_disable_external(void)
{
PIN_INPUT_DISABLE(IO_MUX_GPIO0_REG);
REG_CLR_BIT(LP_AON_GPIO_HOLD0_REG, BIT(EXT_OSC_SLOW_GPIO_NUM));
clk_ll_xtal32k_disable();
}
void rtc_clk_32k_bootstrap(uint32_t cycle)
{
/* No special bootstrapping needed for ESP32-H4, 'cycle' argument is to keep the signature

7
components/esp_hw_support/port/esp32s2/include/soc/rtc.h
View File

@ -1,5 +1,5 @@
/*
* SPDX-FileCopyrightText: 2015-2024 Espressif Systems (Shanghai) CO LTD
* SPDX-FileCopyrightText: 2015-2025 Espressif Systems (Shanghai) CO LTD
*
* SPDX-License-Identifier: Apache-2.0
*/
@ -258,6 +258,11 @@ void rtc_clk_32k_enable(bool en);
*/
void rtc_clk_32k_enable_external(void);
/**
* @brief Disable 32 kHz XTAL oscillator input.
*/
void rtc_clk_32k_disable_external(void);
/**
* @brief Get the state of 32k XTAL oscillator
* @return true if 32k XTAL oscillator has been enabled

9
components/esp_hw_support/port/esp32s2/rtc_clk.c
View File

@ -1,5 +1,5 @@
/*
* SPDX-FileCopyrightText: 2015-2024 Espressif Systems (Shanghai) CO LTD
* SPDX-FileCopyrightText: 2015-2025 Espressif Systems (Shanghai) CO LTD
*
* SPDX-License-Identifier: Apache-2.0
*/
@ -49,6 +49,13 @@ void rtc_clk_32k_enable_external(void)
clk_ll_xtal32k_enable(CLK_LL_XTAL32K_ENABLE_MODE_EXTERNAL);
}
void rtc_clk_32k_disable_external(void)
{
CLEAR_PERI_REG_MASK(RTC_IO_XTAL_32P_PAD_REG, RTC_IO_X32P_MUX_SEL);
CLEAR_PERI_REG_MASK(RTC_IO_XTAL_32N_PAD_REG, RTC_IO_X32N_MUX_SEL);
clk_ll_xtal32k_disable();
}
void rtc_clk_32k_bootstrap(uint32_t cycle)
{
/* No special bootstrapping needed for ESP32-S2, 'cycle' argument is to keep the signature

9
components/esp_hw_support/port/esp32s3/include/soc/rtc.h
View File

@ -1,5 +1,5 @@
/*
* SPDX-FileCopyrightText: 2015-2024 Espressif Systems (Shanghai) CO LTD
* SPDX-FileCopyrightText: 2015-2025 Espressif Systems (Shanghai) CO LTD
*
* SPDX-License-Identifier: Apache-2.0
*/
@ -276,7 +276,12 @@ void rtc_clk_32k_enable(bool en);
void rtc_clk_32k_enable_external(void);
/**
* @brief Get the state of 32k XTAL oscillator
* @brief Disable 32 kHz XTAL oscillator input.
*/
void rtc_clk_32k_disable_external(void);
/**
* @brief Get the state of 32k XTAL oscillators
* @return true if 32k XTAL oscillator has been enabled
*/
bool rtc_clk_32k_enabled(void);

9
components/esp_hw_support/port/esp32s3/rtc_clk.c
View File

@ -1,5 +1,5 @@
/*
* SPDX-FileCopyrightText: 2015-2024 Espressif Systems (Shanghai) CO LTD
* SPDX-FileCopyrightText: 2015-2025 Espressif Systems (Shanghai) CO LTD
*
* SPDX-License-Identifier: Apache-2.0
*/
@ -72,6 +72,13 @@ void rtc_clk_32k_enable_external(void)
clk_ll_xtal32k_enable(CLK_LL_XTAL32K_ENABLE_MODE_EXTERNAL);
}
void rtc_clk_32k_disable_external(void)
{
PIN_INPUT_DISABLE(IO_MUX_GPIO15_REG);
CLEAR_PERI_REG_MASK(RTC_CNTL_PAD_HOLD_REG, RTC_CNTL_X32P_HOLD);
clk_ll_xtal32k_disable();
}
void rtc_clk_32k_bootstrap(uint32_t cycle)
{
/* No special bootstrapping needed for ESP32-S3, 'cycle' argument is to keep the signature

10
components/esp_system/port/soc/esp32/clk.c
View File

@ -1,5 +1,5 @@
/*
* SPDX-FileCopyrightText: 2015-2024 Espressif Systems (Shanghai) CO LTD
* SPDX-FileCopyrightText: 2015-2025 Espressif Systems (Shanghai) CO LTD
*
* SPDX-License-Identifier: Apache-2.0
*/
@ -91,7 +91,13 @@ static void select_rtc_slow_clk(slow_clk_sel_t slow_clk)
rtc_clk_8m_enable(true, true);
}
rtc_clk_slow_src_set(rtc_slow_clk_src);
if (rtc_slow_clk_src != SOC_RTC_SLOW_CLK_SRC_XTAL32K) {
if (slow_clk == SLOW_CLK_32K_XTAL) {
rtc_clk_32k_enable(false);
} else if (slow_clk == SLOW_CLK_32K_EXT_OSC) {
rtc_clk_32k_disable_external();
}
}
if (SLOW_CLK_CAL_CYCLES > 0) {
/* TODO: 32k XTAL oscillator has some frequency drift at startup.
* Improve calibration routine to wait until the frequency is stable.

6
components/esp_system/port/soc/esp32c2/clk.c
View File

@ -1,5 +1,5 @@
/*
* SPDX-FileCopyrightText: 2015-2024 Espressif Systems (Shanghai) CO LTD
* SPDX-FileCopyrightText: 2015-2025 Espressif Systems (Shanghai) CO LTD
*
* SPDX-License-Identifier: Apache-2.0
*/
@ -180,7 +180,9 @@ static void select_rtc_slow_clk(slow_clk_sel_t slow_clk)
rtc_clk_8m_enable(true, true);
}
rtc_clk_slow_src_set(rtc_slow_clk_src);
if (rtc_slow_clk_src != SOC_RTC_SLOW_CLK_SRC_OSC_SLOW) {
rtc_clk_32k_disable_external();
}
if (SLOW_CLK_CAL_CYCLES > 0) {
/* TODO: 32k XTAL oscillator has some frequency drift at startup.
* Improve calibration routine to wait until the frequency is stable.

10
components/esp_system/port/soc/esp32c3/clk.c
View File

@ -1,5 +1,5 @@
/*
* SPDX-FileCopyrightText: 2015-2024 Espressif Systems (Shanghai) CO LTD
* SPDX-FileCopyrightText: 2015-2025 Espressif Systems (Shanghai) CO LTD
*
* SPDX-License-Identifier: Apache-2.0
*/
@ -176,7 +176,13 @@ static void select_rtc_slow_clk(slow_clk_sel_t slow_clk)
rtc_clk_8m_enable(true, true);
}
rtc_clk_slow_src_set(rtc_slow_clk_src);
if (rtc_slow_clk_src != SOC_RTC_SLOW_CLK_SRC_XTAL32K) {
if (slow_clk == SLOW_CLK_32K_XTAL) {
rtc_clk_32k_enable(false);
} else if (slow_clk == SLOW_CLK_32K_EXT_OSC) {
rtc_clk_32k_disable_external();
}
}
if (SLOW_CLK_CAL_CYCLES > 0) {
/* TODO: 32k XTAL oscillator has some frequency drift at startup.
* Improve calibration routine to wait until the frequency is stable.

9
components/esp_system/port/soc/esp32c5/clk.c
View File

@ -1,5 +1,5 @@
/*
* SPDX-FileCopyrightText: 2022-2024 Espressif Systems (Shanghai) CO LTD
* SPDX-FileCopyrightText: 2022-2025 Espressif Systems (Shanghai) CO LTD
*
* SPDX-License-Identifier: Apache-2.0
*/
@ -171,13 +171,14 @@ static void select_rtc_slow_clk(soc_rtc_slow_clk_src_t rtc_slow_clk_src)
}
}
rtc_clk_slow_src_set(rtc_slow_clk_src);
// Disable unused clock sources after clock source switching is complete.
// Regardless of the clock source selection, the internal 136K clock source will always keep on.
if (rtc_slow_clk_src != SOC_RTC_SLOW_CLK_SRC_XTAL32K && rtc_slow_clk_src != SOC_RTC_SLOW_CLK_SRC_OSC_SLOW) {
if (rtc_slow_clk_src != SOC_RTC_SLOW_CLK_SRC_XTAL32K) {
rtc_clk_32k_enable(false);
}
if (rtc_slow_clk_src != SOC_RTC_SLOW_CLK_SRC_OSC_SLOW) {
rtc_clk_32k_disable_external();
}
if (SLOW_CLK_CAL_CYCLES > 0) {
/* TODO: 32k XTAL oscillator has some frequency drift at startup.
* Improve calibration routine to wait until the frequency is stable.

8
components/esp_system/port/soc/esp32c6/clk.c
View File

@ -1,5 +1,5 @@
/*
* SPDX-FileCopyrightText: 2022-2024 Espressif Systems (Shanghai) CO LTD
* SPDX-FileCopyrightText: 2022-2025 Espressif Systems (Shanghai) CO LTD
*
* SPDX-License-Identifier: Apache-2.0
*/
@ -185,12 +185,14 @@ static void select_rtc_slow_clk(soc_rtc_slow_clk_src_t rtc_slow_clk_src)
rtc_clk_rc32k_enable(true);
}
rtc_clk_slow_src_set(rtc_slow_clk_src);
// Disable unused clock sources after clock source switching is complete.
// Regardless of the clock source selection, the internal 136K clock source will always keep on.
if (rtc_slow_clk_src != SOC_RTC_SLOW_CLK_SRC_XTAL32K && rtc_slow_clk_src != SOC_RTC_SLOW_CLK_SRC_OSC_SLOW) {
if (rtc_slow_clk_src != SOC_RTC_SLOW_CLK_SRC_XTAL32K) {
rtc_clk_32k_enable(false);
}
if (rtc_slow_clk_src != SOC_RTC_SLOW_CLK_SRC_OSC_SLOW) {
rtc_clk_32k_disable_external();
}
if (rtc_slow_clk_src != SOC_RTC_SLOW_CLK_SRC_RC32K) {
rtc_clk_rc32k_enable(false);
}

9
components/esp_system/port/soc/esp32c61/clk.c
View File

@ -1,5 +1,5 @@
/*
* SPDX-FileCopyrightText: 2024 Espressif Systems (Shanghai) CO LTD
* SPDX-FileCopyrightText: 2024-2025 Espressif Systems (Shanghai) CO LTD
*
* SPDX-License-Identifier: Apache-2.0
*/
@ -148,13 +148,14 @@ static void select_rtc_slow_clk(soc_rtc_slow_clk_src_t rtc_slow_clk_src)
}
}
rtc_clk_slow_src_set(rtc_slow_clk_src);
// Disable unused clock sources after clock source switching is complete.
// Regardless of the clock source selection, the internal 136K clock source will always keep on.
if (rtc_slow_clk_src != SOC_RTC_SLOW_CLK_SRC_XTAL32K && rtc_slow_clk_src != SOC_RTC_SLOW_CLK_SRC_OSC_SLOW) {
if (rtc_slow_clk_src != SOC_RTC_SLOW_CLK_SRC_XTAL32K) {
rtc_clk_32k_enable(false);
}
if (rtc_slow_clk_src != SOC_RTC_SLOW_CLK_SRC_OSC_SLOW) {
rtc_clk_32k_disable_external();
}
if (SLOW_CLK_CAL_CYCLES > 0) {
/* TODO: 32k XTAL oscillator has some frequency drift at startup.
* Improve calibration routine to wait until the frequency is stable.

8
components/esp_system/port/soc/esp32h2/clk.c
View File

@ -1,5 +1,5 @@
/*
* SPDX-FileCopyrightText: 2022-2024 Espressif Systems (Shanghai) CO LTD
* SPDX-FileCopyrightText: 2022-2025 Espressif Systems (Shanghai) CO LTD
*
* SPDX-License-Identifier: Apache-2.0
*/
@ -183,12 +183,14 @@ static void select_rtc_slow_clk(soc_rtc_slow_clk_src_t rtc_slow_clk_src)
rtc_clk_rc32k_enable(true);
}
rtc_clk_slow_src_set(rtc_slow_clk_src);
// Disable unused clock sources after clock source switching is complete.
// Regardless of the clock source selection, the internal 136K clock source will always keep on.
if (rtc_slow_clk_src != SOC_RTC_SLOW_CLK_SRC_XTAL32K && rtc_slow_clk_src != SOC_RTC_SLOW_CLK_SRC_OSC_SLOW) {
if (rtc_slow_clk_src != SOC_RTC_SLOW_CLK_SRC_XTAL32K) {
rtc_clk_32k_enable(false);
}
if (rtc_slow_clk_src != SOC_RTC_SLOW_CLK_SRC_OSC_SLOW) {
rtc_clk_32k_disable_external();
}
if (rtc_slow_clk_src != SOC_RTC_SLOW_CLK_SRC_RC32K) {
rtc_clk_rc32k_enable(false);
}

6
components/esp_system/port/soc/esp32h21/clk.c
View File

@ -163,12 +163,14 @@ static void select_rtc_slow_clk(soc_rtc_slow_clk_src_t rtc_slow_clk_src)
rtc_clk_rc32k_enable(true);
}
rtc_clk_slow_src_set(rtc_slow_clk_src);
// Disable unused clock sources after clock source switching is complete.
// Regardless of the clock source selection, the internal 136K clock source will always keep on.
if (rtc_slow_clk_src != SOC_RTC_SLOW_CLK_SRC_XTAL32K && rtc_slow_clk_src != SOC_RTC_SLOW_CLK_SRC_OSC_SLOW) {
if (rtc_slow_clk_src != SOC_RTC_SLOW_CLK_SRC_XTAL32K) {
rtc_clk_32k_enable(false);
}
if (rtc_slow_clk_src != SOC_RTC_SLOW_CLK_SRC_OSC_SLOW) {
rtc_clk_32k_disable_external();
}
if (rtc_slow_clk_src != SOC_RTC_SLOW_CLK_SRC_RC32K) {
rtc_clk_rc32k_enable(false);
}

7
components/esp_system/port/soc/esp32h4/clk.c
View File

@ -145,7 +145,12 @@ static void select_rtc_slow_clk(soc_rtc_slow_clk_src_t rtc_slow_clk_src)
rtc_clk_rc32k_enable(true);
}
rtc_clk_slow_src_set(rtc_slow_clk_src);
if (rtc_slow_clk_src != SOC_RTC_SLOW_CLK_SRC_XTAL32K) {
rtc_clk_32k_enable(false);
}
if (rtc_slow_clk_src != SOC_RTC_SLOW_CLK_SRC_OSC_SLOW) {
rtc_clk_32k_disable_external();
}
if (SLOW_CLK_CAL_CYCLES > 0) {
/* TODO: 32k XTAL oscillator has some frequency drift at startup.
* Improve calibration routine to wait until the frequency is stable.

10
components/esp_system/port/soc/esp32s2/clk.c
View File

@ -1,5 +1,5 @@
/*
* SPDX-FileCopyrightText: 2015-2024 Espressif Systems (Shanghai) CO LTD
* SPDX-FileCopyrightText: 2015-2025 Espressif Systems (Shanghai) CO LTD
*
* SPDX-License-Identifier: Apache-2.0
*/
@ -179,7 +179,13 @@ static void select_rtc_slow_clk(slow_clk_sel_t slow_clk)
rtc_clk_8m_enable(true, true);
}
rtc_clk_slow_src_set(rtc_slow_clk_src);
if (rtc_slow_clk_src != SOC_RTC_SLOW_CLK_SRC_XTAL32K) {
if (slow_clk == SLOW_CLK_32K_XTAL) {
rtc_clk_32k_enable(false);
} else if (slow_clk == SLOW_CLK_32K_EXT_OSC) {
rtc_clk_32k_disable_external();
}
}
if (SLOW_CLK_CAL_CYCLES > 0) {
/* TODO: 32k XTAL oscillator has some frequency drift at startup.
* Improve calibration routine to wait until the frequency is stable.

10
components/esp_system/port/soc/esp32s3/clk.c
View File

@ -1,5 +1,5 @@
/*
* SPDX-FileCopyrightText: 2015-2024 Espressif Systems (Shanghai) CO LTD
* SPDX-FileCopyrightText: 2015-2025 Espressif Systems (Shanghai) CO LTD
*
* SPDX-License-Identifier: Apache-2.0
*/
@ -177,7 +177,13 @@ static void select_rtc_slow_clk(slow_clk_sel_t slow_clk)
rtc_clk_8m_enable(true, true);
}
rtc_clk_slow_src_set(rtc_slow_clk_src);
if (rtc_slow_clk_src != SOC_RTC_SLOW_CLK_SRC_XTAL32K) {
if (slow_clk == SLOW_CLK_32K_XTAL) {
rtc_clk_32k_enable(false);
} else if (slow_clk == SLOW_CLK_32K_EXT_OSC) {
rtc_clk_32k_disable_external();
}
}
if (SLOW_CLK_CAL_CYCLES > 0) {
/* TODO: 32k XTAL oscillator has some frequency drift at startup.
* Improve calibration routine to wait until the frequency is stable.