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https://github.com/espressif/esp-idf.git
synced 2026-10-02 03:00:34 +03:00
fix(startup): move rtc initialization before MSPI timing tuning to improve stability
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@@ -356,24 +356,6 @@ bool rtc_dig_8m_enabled(void)
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return clk_ll_rc_fast_digi_is_enabled();
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}
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// Workaround for bootloader not calibrated well issue.
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// Placed in IRAM because disabling BBPLL may influence the cache
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void rtc_clk_recalib_bbpll(void)
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{
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rtc_cpu_freq_config_t old_config;
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rtc_clk_cpu_freq_get_config(&old_config);
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// There are two paths we arrive here: 1. CPU reset. 2. Other reset reasons.
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// - For other reasons, the bootloader will set CPU source to BBPLL and enable it. But there are calibration issues.
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// Turn off the BBPLL and do calibration again to fix the issue.
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// - For CPU reset, the CPU source will be set to XTAL, while the BBPLL is kept to meet USB Serial JTAG's
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// requirements. In this case, we don't touch BBPLL to avoid USJ disconnection.
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if (old_config.source == SOC_CPU_CLK_SRC_PLL) {
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rtc_clk_cpu_freq_set_xtal();
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rtc_clk_cpu_freq_set_config(&old_config);
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}
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}
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/* Name used in libphy.a:phy_chip_v7.o
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* TODO: update the library to use rtc_clk_xtal_freq_get
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*/
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@@ -423,25 +423,6 @@ bool rtc_dig_8m_enabled(void)
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return clk_ll_rc_fast_digi_is_enabled();
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}
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// Workaround for bootloader not calibrated well issue.
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// Placed in IRAM because disabling BBPLL may influence the cache
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void rtc_clk_recalib_bbpll(void)
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{
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rtc_cpu_freq_config_t old_config;
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rtc_clk_cpu_freq_get_config(&old_config);
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// There are two paths we arrive here: 1. CPU reset. 2. Other reset reasons.
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// - For other reasons, the bootloader will set CPU source to BBPLL and enable it. But there are calibration issues.
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// Turn off the BBPLL and do calibration again to fix the issue.
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// - For CPU reset, the CPU source will be set to XTAL, while the BBPLL is kept to meet USB Serial JTAG's
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// requirements. In this case, we don't touch BBPLL to avoid USJ disconnection.
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if (old_config.source == SOC_CPU_CLK_SRC_PLL) {
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rtc_clk_cpu_freq_set_xtal();
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rtc_clk_cpu_freq_set_config(&old_config);
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}
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}
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/* Name used in libphy.a:phy_chip_v7.o
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* TODO: update the library to use rtc_clk_xtal_freq_get
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*/
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@@ -427,25 +427,6 @@ bool rtc_dig_8m_enabled(void)
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return clk_ll_rc_fast_digi_is_enabled();
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}
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// Workaround for bootloader not calibrated well issue.
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// Placed in IRAM because disabling BBPLL may influence the cache
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void rtc_clk_recalib_bbpll(void)
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{
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rtc_cpu_freq_config_t old_config;
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rtc_clk_cpu_freq_get_config(&old_config);
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// There are two paths we arrive here: 1. CPU reset. 2. Other reset reasons.
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// - For other reasons, the bootloader will set CPU source to BBPLL and enable it. But there are calibration issues.
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// Turn off the BBPLL and do calibration again to fix the issue.
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// - For CPU reset, the CPU source will be set to XTAL, while the BBPLL is kept to meet USB Serial JTAG's
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// requirements. In this case, we don't touch BBPLL to avoid USJ disconnection.
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if (old_config.source == SOC_CPU_CLK_SRC_PLL) {
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rtc_clk_cpu_freq_set_xtal();
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rtc_clk_cpu_freq_set_config(&old_config);
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}
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}
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/* Name used in libphy.a:phy_chip_v7.o
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* TODO: update the library to use rtc_clk_xtal_freq_get
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*/
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@@ -238,7 +238,7 @@ static void rtc_clk_cpu_freq_to_pll_mhz(int cpu_freq_mhz)
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/**
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* Switch to FLASH_PLL as cpu clock source.
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* On ESP32H2, FLASH_PLL frequency is 64MHz.
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* PLL must alreay be enabled.
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* PLL must already be enabled.
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*/
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static void rtc_clk_cpu_freq_to_flash_pll(uint32_t cpu_freq_mhz, uint32_t cpu_divider)
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{
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@@ -474,21 +474,3 @@ bool rtc_dig_8m_enabled(void)
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{
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return clk_ll_rc_fast_digi_is_enabled();
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}
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// Workaround for bootloader not calibrated well issue.
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// Placed in IRAM because disabling BBPLL may influence the cache
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void rtc_clk_recalib_bbpll(void)
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{
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rtc_cpu_freq_config_t old_config;
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rtc_clk_cpu_freq_get_config(&old_config);
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// There are two paths we arrive here: 1. CPU reset. 2. Other reset reasons.
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// - For other reasons, the bootloader will set CPU source to BBPLL and enable it. But there are calibration issues.
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// Turn off the BBPLL and do calibration again to fix the issue. Flash_PLL comes from the same source as PLL.
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// - For CPU reset, the CPU source will be set to XTAL, while the BBPLL is kept to meet USB Serial JTAG's
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// requirements. In this case, we don't touch BBPLL to avoid USJ disconnection.
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if (old_config.source == SOC_CPU_CLK_SRC_PLL || old_config.source == SOC_CPU_CLK_SRC_FLASH_PLL) {
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rtc_clk_cpu_freq_set_xtal();
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rtc_clk_cpu_freq_set_config(&old_config);
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}
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}
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@@ -187,7 +187,7 @@ static void rtc_clk_bbpll_configure(soc_xtal_freq_t xtal_freq, int pll_freq)
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static void rtc_clk_cpu_freq_to_pll_mhz(int cpu_freq_mhz)
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{
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/* There are totally 6 LDO slaves(all on by default). At the moment of swithing LDO slave, LDO voltage will also change instantaneously.
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/* There are totally 6 LDO slaves(all on by default). At the moment of switching LDO slave, LDO voltage will also change instantaneously.
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* LDO slave can reduce the voltage change caused by switching frequency.
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* CPU frequency <= 40M : just open 3 LDO slaves; CPU frequency = 80M : open 4 LDO slaves; CPU frequency = 160M : open 5 LDO slaves; CPU frequency = 240M : open 6 LDO slaves;
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*
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@@ -460,25 +460,6 @@ bool rtc_dig_8m_enabled(void)
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return clk_ll_rc_fast_digi_is_enabled();
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}
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// Workaround for bootloader not calibrated well issue.
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// Placed in IRAM because disabling BBPLL may influence the cache
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void rtc_clk_recalib_bbpll(void)
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{
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rtc_cpu_freq_config_t old_config;
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rtc_clk_cpu_freq_get_config(&old_config);
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// There are two paths we arrive here: 1. CPU reset. 2. Other reset reasons.
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// - For other reasons, the bootloader will set CPU source to BBPLL and enable it. But there are calibration issues.
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// Turn off the BBPLL and do calibration again to fix the issue.
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// - For CPU reset, the CPU source will be set to XTAL, while the BBPLL is kept to meet USB Serial JTAG's
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// requirements. In this case, we don't touch BBPLL to avoid USJ disconnection.
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if (old_config.source == SOC_CPU_CLK_SRC_PLL) {
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rtc_clk_cpu_freq_set_xtal();
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rtc_clk_cpu_freq_set_config(&old_config);
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}
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}
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/* Name used in libphy.a:phy_chip_v7.o
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* TODO: update the library to use rtc_clk_xtal_freq_get
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*/
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