fix(startup): move rtc initialization before MSPI timing tuning to improve stability

This commit is contained in:
Xiao Xufeng
2024-08-05 00:35:10 +08:00
parent fc847a0e9f
commit f81cece9d4
19 changed files with 175 additions and 133 deletions
@@ -356,24 +356,6 @@ bool rtc_dig_8m_enabled(void)
return clk_ll_rc_fast_digi_is_enabled();
}
// Workaround for bootloader not calibrated well issue.
// Placed in IRAM because disabling BBPLL may influence the cache
void rtc_clk_recalib_bbpll(void)
{
rtc_cpu_freq_config_t old_config;
rtc_clk_cpu_freq_get_config(&old_config);
// There are two paths we arrive here: 1. CPU reset. 2. Other reset reasons.
// - For other reasons, the bootloader will set CPU source to BBPLL and enable it. But there are calibration issues.
// Turn off the BBPLL and do calibration again to fix the issue.
// - For CPU reset, the CPU source will be set to XTAL, while the BBPLL is kept to meet USB Serial JTAG's
// requirements. In this case, we don't touch BBPLL to avoid USJ disconnection.
if (old_config.source == SOC_CPU_CLK_SRC_PLL) {
rtc_clk_cpu_freq_set_xtal();
rtc_clk_cpu_freq_set_config(&old_config);
}
}
/* Name used in libphy.a:phy_chip_v7.o
* TODO: update the library to use rtc_clk_xtal_freq_get
*/
@@ -423,25 +423,6 @@ bool rtc_dig_8m_enabled(void)
return clk_ll_rc_fast_digi_is_enabled();
}
// Workaround for bootloader not calibrated well issue.
// Placed in IRAM because disabling BBPLL may influence the cache
void rtc_clk_recalib_bbpll(void)
{
rtc_cpu_freq_config_t old_config;
rtc_clk_cpu_freq_get_config(&old_config);
// There are two paths we arrive here: 1. CPU reset. 2. Other reset reasons.
// - For other reasons, the bootloader will set CPU source to BBPLL and enable it. But there are calibration issues.
// Turn off the BBPLL and do calibration again to fix the issue.
// - For CPU reset, the CPU source will be set to XTAL, while the BBPLL is kept to meet USB Serial JTAG's
// requirements. In this case, we don't touch BBPLL to avoid USJ disconnection.
if (old_config.source == SOC_CPU_CLK_SRC_PLL) {
rtc_clk_cpu_freq_set_xtal();
rtc_clk_cpu_freq_set_config(&old_config);
}
}
/* Name used in libphy.a:phy_chip_v7.o
* TODO: update the library to use rtc_clk_xtal_freq_get
*/
@@ -427,25 +427,6 @@ bool rtc_dig_8m_enabled(void)
return clk_ll_rc_fast_digi_is_enabled();
}
// Workaround for bootloader not calibrated well issue.
// Placed in IRAM because disabling BBPLL may influence the cache
void rtc_clk_recalib_bbpll(void)
{
rtc_cpu_freq_config_t old_config;
rtc_clk_cpu_freq_get_config(&old_config);
// There are two paths we arrive here: 1. CPU reset. 2. Other reset reasons.
// - For other reasons, the bootloader will set CPU source to BBPLL and enable it. But there are calibration issues.
// Turn off the BBPLL and do calibration again to fix the issue.
// - For CPU reset, the CPU source will be set to XTAL, while the BBPLL is kept to meet USB Serial JTAG's
// requirements. In this case, we don't touch BBPLL to avoid USJ disconnection.
if (old_config.source == SOC_CPU_CLK_SRC_PLL) {
rtc_clk_cpu_freq_set_xtal();
rtc_clk_cpu_freq_set_config(&old_config);
}
}
/* Name used in libphy.a:phy_chip_v7.o
* TODO: update the library to use rtc_clk_xtal_freq_get
*/
@@ -238,7 +238,7 @@ static void rtc_clk_cpu_freq_to_pll_mhz(int cpu_freq_mhz)
/**
* Switch to FLASH_PLL as cpu clock source.
* On ESP32H2, FLASH_PLL frequency is 64MHz.
* PLL must alreay be enabled.
* PLL must already be enabled.
*/
static void rtc_clk_cpu_freq_to_flash_pll(uint32_t cpu_freq_mhz, uint32_t cpu_divider)
{
@@ -474,21 +474,3 @@ bool rtc_dig_8m_enabled(void)
{
return clk_ll_rc_fast_digi_is_enabled();
}
// Workaround for bootloader not calibrated well issue.
// Placed in IRAM because disabling BBPLL may influence the cache
void rtc_clk_recalib_bbpll(void)
{
rtc_cpu_freq_config_t old_config;
rtc_clk_cpu_freq_get_config(&old_config);
// There are two paths we arrive here: 1. CPU reset. 2. Other reset reasons.
// - For other reasons, the bootloader will set CPU source to BBPLL and enable it. But there are calibration issues.
// Turn off the BBPLL and do calibration again to fix the issue. Flash_PLL comes from the same source as PLL.
// - For CPU reset, the CPU source will be set to XTAL, while the BBPLL is kept to meet USB Serial JTAG's
// requirements. In this case, we don't touch BBPLL to avoid USJ disconnection.
if (old_config.source == SOC_CPU_CLK_SRC_PLL || old_config.source == SOC_CPU_CLK_SRC_FLASH_PLL) {
rtc_clk_cpu_freq_set_xtal();
rtc_clk_cpu_freq_set_config(&old_config);
}
}
@@ -187,7 +187,7 @@ static void rtc_clk_bbpll_configure(soc_xtal_freq_t xtal_freq, int pll_freq)
static void rtc_clk_cpu_freq_to_pll_mhz(int cpu_freq_mhz)
{
/* There are totally 6 LDO slaves(all on by default). At the moment of swithing LDO slave, LDO voltage will also change instantaneously.
/* There are totally 6 LDO slaves(all on by default). At the moment of switching LDO slave, LDO voltage will also change instantaneously.
* LDO slave can reduce the voltage change caused by switching frequency.
* 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;
*
@@ -460,25 +460,6 @@ bool rtc_dig_8m_enabled(void)
return clk_ll_rc_fast_digi_is_enabled();
}
// Workaround for bootloader not calibrated well issue.
// Placed in IRAM because disabling BBPLL may influence the cache
void rtc_clk_recalib_bbpll(void)
{
rtc_cpu_freq_config_t old_config;
rtc_clk_cpu_freq_get_config(&old_config);
// There are two paths we arrive here: 1. CPU reset. 2. Other reset reasons.
// - For other reasons, the bootloader will set CPU source to BBPLL and enable it. But there are calibration issues.
// Turn off the BBPLL and do calibration again to fix the issue.
// - For CPU reset, the CPU source will be set to XTAL, while the BBPLL is kept to meet USB Serial JTAG's
// requirements. In this case, we don't touch BBPLL to avoid USJ disconnection.
if (old_config.source == SOC_CPU_CLK_SRC_PLL) {
rtc_clk_cpu_freq_set_xtal();
rtc_clk_cpu_freq_set_config(&old_config);
}
}
/* Name used in libphy.a:phy_chip_v7.o
* TODO: update the library to use rtc_clk_xtal_freq_get
*/