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rtc: Clean up for S2,S3,C3

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This commit is contained in:
KonstantinKondrashov
2021-03-01 16:51:15 +08:00
parent ee7c66cc82
commit b31bf01484
12 changed files with 24 additions and 36 deletions
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components/esp_hw_support/port/esp32c3/rtc_time.c
+3 -9
View File
@@ -39,7 +39,7 @@
*/
uint32_t rtc_clk_cal_internal(rtc_cal_sel_t cal_clk, uint32_t slowclk_cycles)
{
/* On ESP32S3, choosing RTC_CAL_RTC_MUX results in calibration of
/* On ESP32C3, choosing RTC_CAL_RTC_MUX results in calibration of
* the 90k RTC clock regardless of the currenlty selected SLOW_CLK.
* On the ESP32, it used the currently selected SLOW_CLK.
* The following code emulates ESP32 behavior:
@@ -52,7 +52,7 @@ uint32_t rtc_clk_cal_internal(rtc_cal_sel_t cal_clk, uint32_t slowclk_cycles)
cal_clk = RTC_CAL_8MD256;
}
}
/* Enable requested clock (150k clock is always on) */
/* Enable requested clock (90k clock is always on) */
int dig_32k_xtal_state = REG_GET_FIELD(RTC_CNTL_CLK_CONF_REG, RTC_CNTL_DIG_XTAL32K_EN);
if (cal_clk == RTC_CAL_32K_XTAL && !dig_32k_xtal_state) {
REG_SET_FIELD(RTC_CNTL_CLK_CONF_REG, RTC_CNTL_DIG_XTAL32K_EN, 1);
@@ -84,7 +84,7 @@ uint32_t rtc_clk_cal_internal(rtc_cal_sel_t cal_clk, uint32_t slowclk_cycles)
REG_SET_FIELD(TIMG_RTCCALICFG2_REG(0), TIMG_RTC_CALI_TIMEOUT_THRES, RTC_SLOW_CLK_8MD256_CAL_TIMEOUT_THRES(slowclk_cycles));
expected_freq = RTC_SLOW_CLK_FREQ_8MD256;
} else {
REG_SET_FIELD(TIMG_RTCCALICFG2_REG(0), TIMG_RTC_CALI_TIMEOUT_THRES, RTC_SLOW_CLK_150K_CAL_TIMEOUT_THRES(slowclk_cycles));
REG_SET_FIELD(TIMG_RTCCALICFG2_REG(0), TIMG_RTC_CALI_TIMEOUT_THRES, RTC_SLOW_CLK_90K_CAL_TIMEOUT_THRES(slowclk_cycles));
expected_freq = RTC_SLOW_CLK_FREQ_90K;
}
uint32_t us_time_estimate = (uint32_t) (((uint64_t) slowclk_cycles) * MHZ / expected_freq);
@@ -150,12 +150,6 @@ uint64_t rtc_time_slowclk_to_us(uint64_t rtc_cycles, uint32_t period)
uint64_t rtc_time_get(void)
{
SET_PERI_REG_MASK(RTC_CNTL_TIME_UPDATE_REG, RTC_CNTL_TIME_UPDATE);
#if 0 // TODO ESP32-C3 IDF-2569: Re-enable it in the future
while (GET_PERI_REG_MASK(RTC_CNTL_TIME_UPDATE_REG, RTC_CNTL_TIME_VALID) == 0) {
esp_rom_delay_us(1); // might take 1 RTC slowclk period, don't flood RTC bus
}
SET_PERI_REG_MASK(RTC_CNTL_INT_CLR_REG, RTC_CNTL_TIME_VALID_INT_CLR);
#endif
uint64_t t = READ_PERI_REG(RTC_CNTL_TIME0_REG);
t |= ((uint64_t) READ_PERI_REG(RTC_CNTL_TIME1_REG)) << 32;
return t;
components/esp_hw_support/port/esp32s2/rtc_time.c
+2 -8
View File
@@ -61,7 +61,7 @@ static uint32_t rtc_clk_cal_internal_oneoff(rtc_cal_sel_t cal_clk, uint32_t slow
REG_SET_FIELD(TIMG_RTCCALICFG2_REG(0), TIMG_RTC_CALI_TIMEOUT_THRES, RTC_SLOW_CLK_8MD256_CAL_TIMEOUT_THRES(slowclk_cycles));
expected_freq = RTC_SLOW_CLK_FREQ_8MD256;
} else {
REG_SET_FIELD(TIMG_RTCCALICFG2_REG(0), TIMG_RTC_CALI_TIMEOUT_THRES, RTC_SLOW_CLK_150K_CAL_TIMEOUT_THRES(slowclk_cycles));
REG_SET_FIELD(TIMG_RTCCALICFG2_REG(0), TIMG_RTC_CALI_TIMEOUT_THRES, RTC_SLOW_CLK_90K_CAL_TIMEOUT_THRES(slowclk_cycles));
expected_freq = RTC_SLOW_CLK_FREQ_90K;
}
uint32_t us_time_estimate = (uint32_t) (((uint64_t) slowclk_cycles) * MHZ / expected_freq);
@@ -150,7 +150,7 @@ uint32_t rtc_clk_cal_internal(rtc_cal_sel_t cal_clk, uint32_t slowclk_cycles, ui
cal_clk = RTC_CAL_8MD256;
}
}
/* Enable requested clock (150k clock is always on) */
/* Enable requested clock (90k clock is always on) */
int dig_32k_xtal_state = REG_GET_FIELD(RTC_CNTL_CLK_CONF_REG, RTC_CNTL_DIG_XTAL32K_EN);
if (cal_clk == RTC_CAL_32K_XTAL && !dig_32k_xtal_state) {
REG_SET_FIELD(RTC_CNTL_CLK_CONF_REG, RTC_CNTL_DIG_XTAL32K_EN, 1);
@@ -216,12 +216,6 @@ uint64_t rtc_time_slowclk_to_us(uint64_t rtc_cycles, uint32_t period)
uint64_t rtc_time_get(void)
{
SET_PERI_REG_MASK(RTC_CNTL_TIME_UPDATE_REG, RTC_CNTL_TIME_UPDATE);
#if 0 // ToDo: Re-enable it in the future
while (GET_PERI_REG_MASK(RTC_CNTL_TIME_UPDATE_REG, RTC_CNTL_TIME_VALID) == 0) {
esp_rom_delay_us(1); // might take 1 RTC slowclk period, don't flood RTC bus
}
SET_PERI_REG_MASK(RTC_CNTL_INT_CLR_REG, RTC_CNTL_TIME_VALID_INT_CLR);
#endif
uint64_t t = READ_PERI_REG(RTC_CNTL_TIME0_REG);
t |= ((uint64_t) READ_PERI_REG(RTC_CNTL_TIME1_REG)) << 32;
return t;
components/esp_hw_support/port/esp32s3/rtc_time.c
+2 -2
View File
@@ -51,7 +51,7 @@ uint32_t rtc_clk_cal_internal(rtc_cal_sel_t cal_clk, uint32_t slowclk_cycles)
cal_clk = RTC_CAL_8MD256;
}
}
/* Enable requested clock (150k clock is always on) */
/* Enable requested clock (90k clock is always on) */
int dig_32k_xtal_state = REG_GET_FIELD(RTC_CNTL_CLK_CONF_REG, RTC_CNTL_DIG_XTAL32K_EN);
if (cal_clk == RTC_CAL_32K_XTAL && !dig_32k_xtal_state) {
REG_SET_FIELD(RTC_CNTL_CLK_CONF_REG, RTC_CNTL_DIG_XTAL32K_EN, 1);
@@ -83,7 +83,7 @@ uint32_t rtc_clk_cal_internal(rtc_cal_sel_t cal_clk, uint32_t slowclk_cycles)
REG_SET_FIELD(TIMG_RTCCALICFG2_REG(0), TIMG_RTC_CALI_TIMEOUT_THRES, RTC_SLOW_CLK_8MD256_CAL_TIMEOUT_THRES(slowclk_cycles));
expected_freq = RTC_SLOW_CLK_FREQ_8MD256;
} else {
REG_SET_FIELD(TIMG_RTCCALICFG2_REG(0), TIMG_RTC_CALI_TIMEOUT_THRES, RTC_SLOW_CLK_150K_CAL_TIMEOUT_THRES(slowclk_cycles));
REG_SET_FIELD(TIMG_RTCCALICFG2_REG(0), TIMG_RTC_CALI_TIMEOUT_THRES, RTC_SLOW_CLK_90K_CAL_TIMEOUT_THRES(slowclk_cycles));
expected_freq = RTC_SLOW_CLK_FREQ_90K;
}
uint32_t us_time_estimate = (uint32_t) (((uint64_t) slowclk_cycles) * MHZ / expected_freq);