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https://github.com/espressif/esp-idf.git
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Merge branch 'feat/support_120m_tsens' into 'master'
feature(psram): Add timing tuning point adjustment via temperature sensor Closes IDF-10506 See merge request espressif/esp-idf!31771
This commit is contained in:
C.S.M
commit
c2cb7d4ed3
@ -27,6 +27,13 @@
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#include "bootloader_flash.h"
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#include "esp32s3/rom/spi_flash.h"
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#include "esp32s3/rom/opi_flash.h"
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#if CONFIG_SPIRAM_TIMING_TUNING_POINT_VIA_TEMPERATURE_SENSOR
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#include "mspi_timing_tuning_configs.h"
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#include "freertos/FreeRTOS.h"
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#include "esp_private/cache_utils.h"
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#include "esp_private/sar_periph_ctrl.h"
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#include "esp_private/startup_internal.h"
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#endif // CONFIG_SPIRAM_TIMING_TUNING_POINT_VIA_TEMPERATURE_SENSOR
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#define OPI_PSRAM_SYNC_READ 0x0000
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#define OPI_PSRAM_SYNC_WRITE 0x8080
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@ -411,6 +418,12 @@ static bool get_working_pll_freq(const uint8_t *reference_data, bool is_flash, u
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}
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#endif //Frequency Scanning
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#if CONFIG_SPIRAM_TIMING_TUNING_POINT_VIA_TEMPERATURE_SENSOR
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// These arrays store the frequency scan result of the timing points
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int psram_pass_freq_min[MSPI_TIMING_CONFIG_NUM_MAX] = {0};
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int psram_pass_freq_max[MSPI_TIMING_CONFIG_NUM_MAX] = {0};
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#endif // CONFIG_SPIRAM_TIMING_TUNING_POINT_VIA_TEMPERATURE_SENSOR
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static uint32_t s_select_best_tuning_config_dtr(const mspi_timing_config_t *configs, uint32_t consecutive_length, uint32_t end, const uint8_t *reference_data, bool is_flash)
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{
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#if (MSPI_TIMING_CORE_CLOCK_MHZ == 160)
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@ -441,10 +454,11 @@ static uint32_t s_select_best_tuning_config_dtr(const mspi_timing_config_t *conf
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bool ret = false;
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//This `max_freq` is the max pll frequency that per MSPI timing tuning config can work
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uint32_t max_freq = 0;
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uint32_t temp_max_freq = 0;
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uint32_t temp_min_freq = 0;
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#if !CONFIG_SPIRAM_TIMING_TUNING_POINT_VIA_TEMPERATURE_SENSOR
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uint32_t max_freq = 0;
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for (; current_point <= end; current_point++) {
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if (is_flash) {
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mspi_timing_config_flash_set_tuning_regs(configs, current_point);
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@ -465,6 +479,48 @@ static uint32_t s_select_best_tuning_config_dtr(const mspi_timing_config_t *conf
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} else {
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ESP_EARLY_LOGD(TAG, "freq scan success, max pll is %" PRIu32 "mhz, best point is index %" PRIu32, max_freq, best_point);
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}
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#else
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uint32_t freq_diff_min = 0xffffffff;
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for (; current_point <= end; current_point++) {
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if (is_flash) {
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mspi_timing_config_flash_set_tuning_regs(configs, current_point);
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} else {
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mspi_timing_config_psram_set_tuning_regs(configs, current_point);
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}
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ret = get_working_pll_freq(reference_data, is_flash, &temp_max_freq, &temp_min_freq);
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if (ret == true) {
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if (temp_min_freq == MSPI_TIMING_PLL_FREQ_SCAN_RANGE_MHZ_MIN) {
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// divided by 4 for mspi clk frequency
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psram_pass_freq_min[current_point] = (temp_max_freq - MSPI_TIMING_PLL_FREQ_SCAN_WIDTH_MHZ) / 4; // use MSPI_TIMING_PLL_FREQ_SCAN_WIDTH_MHZ to calculate the real frequency
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psram_pass_freq_max[current_point] = temp_max_freq / 4;
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} else if (temp_max_freq == MSPI_TIMING_PLL_FREQ_SCAN_RANGE_MHZ_MAX) {
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psram_pass_freq_min[current_point] = temp_min_freq / 4;
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psram_pass_freq_max[current_point] = (temp_min_freq + MSPI_TIMING_PLL_FREQ_SCAN_WIDTH_MHZ) / 4; // use MSPI_TIMING_PLL_FREQ_SCAN_WIDTH_MHZ to calculate the real frequency
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} else {
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psram_pass_freq_min[current_point] = temp_min_freq / 4;
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psram_pass_freq_max[current_point] = temp_max_freq / 4;
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}
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ESP_EARLY_LOGD(TAG, "sample point %" PRIu32 ", max pll is %" PRIu32 " mhz, min pll is %" PRIu32 " mhz, max spi is %" PRIu32 " mhz, min spi is %" PRIu32 " mhz", current_point, temp_max_freq, temp_min_freq, psram_pass_freq_max[current_point], psram_pass_freq_min[current_point]);
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// calculate the difference to psram_pass_freq and 120MHz
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int temp_min_freq_diff = abs(120 - psram_pass_freq_min[current_point]);
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int temp_max_freq_diff = abs(psram_pass_freq_max[current_point] - 120);
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if (abs(temp_min_freq_diff - temp_max_freq_diff) < freq_diff_min) {
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freq_diff_min = abs(temp_min_freq_diff - temp_max_freq_diff);
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best_point = current_point;
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}
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}
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}
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if (freq_diff_min == 0xffffffff) {
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ESP_EARLY_LOGW(TAG, "freq scan tuning fail, best point is fallen back to index %" PRIu32, end + 1 - consecutive_length);
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best_point = end + 1 - consecutive_length;
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} else {
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ESP_EARLY_LOGD(TAG, "freq scan success, best point is index %" PRIu32, best_point);
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}
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#endif
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return best_point;
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@ -630,3 +686,201 @@ uint8_t mspi_timing_config_get_flash_extra_dummy(void)
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return 0;
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#endif
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}
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#if CONFIG_SPIRAM_TIMING_TUNING_POINT_VIA_TEMPERATURE_SENSOR
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#define INTERVAL_IN_SECOND CONFIG_SPIRAM_TIMING_MEASURE_TEMPERATURE_INTERVAL_SECOND
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// These arrays store the frequency scan result of the timing points
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static int s_point_temp_range_min[MSPI_TIMING_CONFIG_NUM_MAX] = {0};
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static int s_point_temp_range_max[MSPI_TIMING_CONFIG_NUM_MAX] = {0};
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static uint32_t s_psram_best_point_idx = 0;
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void mspi_timing_setting_temperature_adjustment_best_point(uint32_t best_point)
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{
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s_psram_best_point_idx = best_point;
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}
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static void mspi_timing_set_psram_point_idx(uint32_t point_idx)
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{
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mspi_timing_config_t timing_configs = {0};
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s_psram_best_point_idx = point_idx;
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mspi_timing_get_psram_tuning_configs(&timing_configs);
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mspi_timing_psram_set_best_tuning_config(&timing_configs, point_idx);
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mspi_timing_config_psram_set_tuning_regs(&timing_configs, point_idx);
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}
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static void set_timing_point(uint32_t point_idx)
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{
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// Disable cache in order that cache would not touch psram
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spi_flash_disable_interrupts_caches_and_other_cpu();
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mspi_timing_set_psram_point_idx(point_idx);
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spi_flash_enable_interrupts_caches_and_other_cpu();
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}
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// A mean filter with window to make the temperature value smoother
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static esp_err_t temperature_sensor_get_celsius_filtered(int16_t *temp_filtered)
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{
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const int filter_window_len = 7;
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int16_t temp_arr[filter_window_len];
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int16_t temp_sum = 0;
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uint8_t temp_min_idx = 0;
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uint8_t temp_max_idx = 0;
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for (uint8_t idx = 0; idx < filter_window_len; idx++) {
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temp_arr[idx] = temp_sensor_get_raw_value(NULL);
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// record the index of the max and min temperature value
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if (temp_arr[idx] > temp_arr[temp_max_idx]) temp_max_idx = idx;
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if (temp_arr[idx] < temp_arr[temp_min_idx]) temp_min_idx = idx;
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temp_sum += temp_arr[idx];
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}
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// remove the max and min temperature value
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temp_sum -= temp_arr[temp_max_idx];
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temp_sum -= temp_arr[temp_min_idx];
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*temp_filtered = temp_sum / (filter_window_len - 2); // Don't calculate the temp_max and temp_min
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return ESP_OK;
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}
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/**
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* This task will:
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* 1. Calculate temperature ranges of timing points
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* 2. Monitor current temperature
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* 3. Switch timing point if temperature is beyond the range
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*/
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void adjust_psram_timing_point_task(void *arg)
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{
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int16_t temp_refer = 0, temp_curr = 0;
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(void)arg;
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temperature_sensor_power_acquire();
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temperature_sensor_get_celsius_filtered(&temp_refer); // get the refer temperature
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int temperature_freq_radio = 5; // It means that the frequency will reduce by 1MHz when the temperature rises 5℃
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const int temperature_safe_range = 5; // A temperature buffer zone to avoid switching timing points frequently
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// make sure the frequency of current timing point is greater than freq_thres_max and less than freq_thres_min
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const int freq_thres_max = 128; // threshold for maximum threshold frequency in specific temperature, should not change
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const int freq_thres_min = 112; // threshold for minimum threshold frequency in specific temperature, should not change
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int point_curr = s_psram_best_point_idx;
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bool valid_point[MSPI_TIMING_CONFIG_NUM_MAX] = {false};
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// 1. Get the delta of frequency we get at the specific temperature (freq_min) with the frequency min threshold (freq_diff = freq_thres_min - freq_min)
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// 2. Convert frequency difference to temperature difference by radio (5), temperature_diff = freq_diff * radio
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// 3. Calculate the range of temperature: temperature_thre_min = freq_min - temperature_diff
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// Same for the temperature_thre_max.
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// calculate temperature ranges of the every timing point
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for (uint32_t point = 0; point < MSPI_TIMING_CONFIG_NUM_MAX; point++) {
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if (psram_pass_freq_min[point] == 0 && psram_pass_freq_max[point] == 0) {
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continue;
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}
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valid_point[point] = true;
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uint32_t pass_freq_min = psram_pass_freq_min[point];
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uint32_t pass_freq_max = psram_pass_freq_max[point];
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if (pass_freq_max >= freq_thres_max) {
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// frequency pass_freq_max greater than freq_thres_max, it will decrease to freq_thres_max until temperature rise to s_point_temp_range_max
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s_point_temp_range_max[point] = temp_refer + (pass_freq_max - freq_thres_max) * temperature_freq_radio;
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} else {
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// frequency pass_freq_max less than freq_thres_max, it will increase to freq_thres_max until temperature drop to s_point_temp_range_max
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s_point_temp_range_max[point] = temp_refer - (freq_thres_max - pass_freq_max) * temperature_freq_radio;
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}
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if (pass_freq_min <= freq_thres_min) {
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// frequency pass_freq_min less than freq_thres_min, it will increase to freq_thres_min until temperature drop to s_point_temp_range_min
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s_point_temp_range_min[point] = temp_refer - (freq_thres_min - pass_freq_min) * temperature_freq_radio;
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} else {
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// frequency pass_freq_min greater than freq_thres_min, it will decrease to freq_thres_min until temperature rise to s_point_temp_range_min
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s_point_temp_range_min[point] = temp_refer + (pass_freq_min - freq_thres_min) * temperature_freq_radio;
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}
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}
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for (uint32_t point = 0; point < MSPI_TIMING_CONFIG_NUM_MAX - 1; point++) {
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if (valid_point[point] && valid_point[point + 1]) {
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// check temperature intersection
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if (s_point_temp_range_max[point] <= s_point_temp_range_min[point + 1]) {
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ESP_EARLY_LOGE(TAG, "no temperature intersection of neighboring phase points");
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abort();
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}
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}
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}
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while (1) {
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vTaskDelay(INTERVAL_IN_SECOND * 1000 / portTICK_PERIOD_MS);
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point_curr = s_psram_best_point_idx;
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temperature_sensor_get_celsius_filtered(&temp_curr);
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ESP_EARLY_LOGD(TAG, "Getting current temperature value is: %d", temp_curr);
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// Switch timing point if temperature is beyond the range
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if (s_point_temp_range_max[point_curr] == 0 && s_point_temp_range_min[point_curr] == 0) {
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// The current timing point has no frequency scan result (psram_pass_freq_min and psram_pass_freq_min equal to 0),
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// use the previous or next timing point's temperature range to decide what temperature to switch timing point.
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// Use previous timing point's temperature range
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if (point_curr - 1 >= 0) {
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if (s_point_temp_range_max[point_curr - 1] != 0 && s_point_temp_range_min[point_curr - 1] != 0) {
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if (temp_curr < (s_point_temp_range_max[point_curr - 1] - temperature_safe_range)) {
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int point_next = point_curr - 1;
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set_timing_point(point_next);
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ESP_EARLY_LOGD(TAG, "PSRAM set timing point from %d to %ld\n", point_curr, point_next);
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continue;
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}
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}
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}
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// Use next timing point's temperature range
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if (point_curr + 1 < MSPI_TIMING_CONFIG_NUM_MAX) {
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if (s_point_temp_range_max[point_curr + 1] != 0 && s_point_temp_range_min[point_curr + 1] != 0) {
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if (temp_curr > s_point_temp_range_min[point_curr + 1] + temperature_safe_range) {
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int point_next = point_curr + 1;
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set_timing_point(point_next);
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ESP_EARLY_LOGD(TAG, "PSRAM set timing point from %d to %ld\n", point_curr, point_next);
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continue;
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}
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}
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}
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} else {
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// Current temperature is greater than the range, switch to next timing point
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if (point_curr + 1 < MSPI_TIMING_CONFIG_NUM_MAX) {
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if (temp_curr > s_point_temp_range_max[point_curr]) {
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int point_next = point_curr + 1;
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set_timing_point(point_next);
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ESP_EARLY_LOGD(TAG, "PSRAM set timing point from %d to %ld\n", point_curr, point_next);
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continue;
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}
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}
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// Current temperature is less than the range, switch to previous timing point
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if (point_curr - 1 >= 0) {
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if (temp_curr < s_point_temp_range_min[point_curr]) {
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int point_next = point_curr - 1;
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set_timing_point(point_next);
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ESP_EARLY_LOGD(TAG, "PSRAM set timing point from %d to %ld\n", point_curr, point_next);
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continue;
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}
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}
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}
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}
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}
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static esp_err_t psram_adjust_timing_point_via_tsens(void)
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{
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esp_rom_spiflash_chip_t *chip = &rom_spiflash_legacy_data->chip;
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uint8_t vender_id = (chip->device_id >> 16) & 0xff;
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if (vender_id == 0xC8 || vender_id == 0x20) {
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xTaskCreatePinnedToCore(adjust_psram_timing_point_task, "adjust_psram_timing_point_task", 1024 * 5, NULL, configMAX_PRIORITIES - 2, NULL, 0);
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} else {
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ESP_EARLY_LOGE(TAG, "The flash model has not been verified support this feature, please contact espressif business support");
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return ESP_ERR_NOT_SUPPORTED;
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}
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return ESP_OK;
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}
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ESP_SYSTEM_INIT_FN(psram_adjust_timing_point_via_temperature, SECONDARY, BIT(0), 240)
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{
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return psram_adjust_timing_point_via_tsens();
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}
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#endif //CONFIG_SPIRAM_TIMING_TUNING_POINT_VIA_TEMPERATURE_SENSOR
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@ -1,5 +1,5 @@
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/*
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* SPDX-FileCopyrightText: 2023 Espressif Systems (Shanghai) CO LTD
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* SPDX-FileCopyrightText: 2023-2024 Espressif Systems (Shanghai) CO LTD
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*
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* SPDX-License-Identifier: Apache-2.0
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*/
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@ -248,6 +248,13 @@ uint8_t mspi_timing_config_get_flash_extra_dummy(void);
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#endif //#if SOC_MEMSPI_TIMING_TUNING_BY_MSPI_DELAY
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#if CONFIG_SPIRAM_TIMING_TUNING_POINT_VIA_TEMPERATURE_SENSOR
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/**
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* @brief Set best point for psram timing tuning dynamic temperature scheme
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*/
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void mspi_timing_setting_temperature_adjustment_best_point(uint32_t best_point);
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#endif // CONFIG_SPIRAM_TIMING_TUNING_POINT_VIA_TEMPERATURE_SENSOR
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#ifdef __cplusplus
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}
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#endif
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@ -287,6 +287,9 @@ static void s_select_best_tuning_config(mspi_timing_config_t *config, uint32_t c
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} else {
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#if MSPI_TIMING_PSRAM_DTR_MODE
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best_point = s_tuning_cfg_drv.psram_select_best_tuning_config(timing_config, consecutive_length, end, reference_data, IS_DDR);
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#if CONFIG_SPIRAM_TIMING_TUNING_POINT_VIA_TEMPERATURE_SENSOR
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mspi_timing_setting_temperature_adjustment_best_point(best_point);
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#endif
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#elif MSPI_TIMING_PSRAM_STR_MODE
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best_point = s_tuning_cfg_drv.psram_select_best_tuning_config(timing_config, consecutive_length, end, NULL, IS_SDR);
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#endif
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@ -1,5 +1,5 @@
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/*
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* SPDX-FileCopyrightText: 2019-2021 Espressif Systems (Shanghai) CO LTD
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* SPDX-FileCopyrightText: 2019-2024 Espressif Systems (Shanghai) CO LTD
|
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*
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* SPDX-License-Identifier: Apache-2.0
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*/
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@ -15,7 +15,7 @@
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#define MSPI_TIMING_PSRAM_TEST_DATA_ADDR 0
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#define MSPI_TIMING_FLASH_TEST_DATA_ADDR ESP_BOOTLOADER_OFFSET
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/**
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* @note BACKGOURND:
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* @note BACKGROUND:
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*
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* The SPI FLASH module clock and SPI PSRAM module clock is divided from the SPI core clock, core clock is from system clock:
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*
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@ -24,7 +24,7 @@
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* RTC8M ----| |---- PSRAM Module Clock
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*
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*
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* DDR stands for double data rate, MSPI samples at both posedge and negedge. So the real spped will be doubled.
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* DDR stands for double data rate, MSPI samples at both posedge and negedge. So the real speed will be doubled.
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* Speed from high to low: 120M DDR > 80M DDR > 120 SDR > 80M SDR > ...
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*
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* Module with speed lower than 120M SDR doesn't need to be tuned
|
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@ -249,11 +249,16 @@ ESP_STATIC_ASSERT(CHECK_POWER_OF_2(MSPI_TIMING_CORE_CLOCK_MHZ / MSPI_TIMING_PSRA
|
||||
//------------------------------------------Frequency Scanning Related-----------------------------------------------//
|
||||
/**
|
||||
* On ESP32S3, only module clock 120M, DDR mode needs frequency scan. Frequency scanning is to get the max workable PLL
|
||||
* frequency under each successfull timing tuning configuration. PLL frequency may fluctuate under high temperature,
|
||||
* frequency under each successful timing tuning configuration. PLL frequency may fluctuate under high temperature,
|
||||
* this method is to get the tuning configuration that can work under higher PLL frequency.
|
||||
*/
|
||||
#if CONFIG_SPIRAM_TIMING_TUNING_POINT_VIA_TEMPERATURE_SENSOR
|
||||
#define MSPI_TIMING_PLL_FREQ_SCAN_RANGE_MHZ_MIN 424
|
||||
#else
|
||||
#define MSPI_TIMING_PLL_FREQ_SCAN_RANGE_MHZ_MIN 440
|
||||
#endif
|
||||
#define MSPI_TIMING_PLL_FREQ_SCAN_RANGE_MHZ_MAX 600
|
||||
#define MSPI_TIMING_PLL_FREQ_SCAN_THRESH_MHZ_LOW 448
|
||||
#define MSPI_TIMING_PLL_FREQ_SCAN_THRESH_MHZ_HIGH 520
|
||||
#define MSPI_TIMING_PLL_FREQ_SCAN_WIDTH_MHZ 160
|
||||
#define MSPI_TIMING_PLL_FREQ_SCAN_STEP_MHZ_MODULE_CLK_120M 8
|
||||
|
||||
@ -117,6 +117,25 @@ menu "SPI RAM config"
|
||||
bool "40Mhz clock speed"
|
||||
endchoice
|
||||
|
||||
config SPIRAM_TIMING_TUNING_POINT_VIA_TEMPERATURE_SENSOR
|
||||
depends on SPIRAM_SPEED_120M && SPIRAM_MODE_OCT && IDF_EXPERIMENTAL_FEATURES
|
||||
bool "Adjust PSRAM timing tuning point via on-chip temperature sensor in real-time"
|
||||
default n
|
||||
help
|
||||
Temperature would influence the source clock frequency so that the timing tuning point set in start-up
|
||||
might not be always proper when temperature varies in high range. This configuration would help checking
|
||||
the temperature in real-time, and adjust timing point automatically when temperature change.
|
||||
(see External RAM documentation for more details)
|
||||
|
||||
config SPIRAM_TIMING_MEASURE_TEMPERATURE_INTERVAL_SECOND
|
||||
depends on SPIRAM_TIMING_TUNING_POINT_VIA_TEMPERATURE_SENSOR
|
||||
int "PSRAM timing tuning measure temperature interval (unit: second)"
|
||||
default 5
|
||||
help
|
||||
Due to adjusting timing point automatically when temperature change, the task will measure current
|
||||
temperature value in some specific interval. This configuration option would help you to set the
|
||||
proper interval. The interval unit is second.
|
||||
|
||||
config SPIRAM_SPEED
|
||||
int
|
||||
default 120 if SPIRAM_SPEED_120M
|
||||
|
||||
@ -105,6 +105,10 @@ SECONDARY: 220: esp_usb_console_init_restart_timer in components/esp_system/port
|
||||
# This makes more sense to be done after esp_pm_impl_init (called from init_pm).
|
||||
SECONDARY: 230: usb_serial_jtag_conn_status_init in components/esp_driver_usb_serial_jtag/src/usb_serial_jtag_connection_monitor.c on BIT(0)
|
||||
|
||||
# psram adjust timing point need a separate task which should be created at startup.
|
||||
# Valid only `CONFIG_SPIRAM_TIMING_TUNING_POINT_VIA_TEMPERATURE_SENSOR` is enabled.
|
||||
SECONDARY: 240: psram_adjust_timing_point_via_temperature in components/esp_hw_support/mspi_timing_by_mspi_delay.c on BIT(0)
|
||||
|
||||
# Has to be the last step!
|
||||
# Now that the application is about to start, disable boot watchdog
|
||||
SECONDARY: 999: init_disable_rtc_wdt in components/esp_system/startup_funcs.c on BIT(0)
|
||||
|
||||
@ -99,6 +99,10 @@ All Supported Modes and Speeds
|
||||
|
||||
Note 20 celsius degree is not a totally correct number. This value may changes among chips.
|
||||
|
||||
.. note::
|
||||
|
||||
The PSRAM requires a phase point calibration algorithm when operating at 120M. The phase point setting is related to the temperature at startup. When the temperature increases / decreases significantly during the operation of the chip, the PSRAM may experience read/write errors. To solve this problem, you can enable dynamic adjustment of the PSRAM phase point based on the temperature value with :ref:`CONFIG_SPIRAM_TIMING_TUNING_POINT_VIA_TEMPERATURE_SENSOR`. This creates a task that measures the temperature every :ref:`CONFIG_SPIRAM_TIMING_MEASURE_TEMPERATURE_INTERVAL_SECOND` seconds and adjusts the PSRAM phase point accordingly.
|
||||
|
||||
F8R8 Hardware
|
||||
^^^^^^^^^^^^^
|
||||
|
||||
|
||||
@ -99,6 +99,10 @@ SPI Flash 和片外 SPI RAM 配置
|
||||
|
||||
请注意，20 摄氏度并不是一个完全准确的数字，这个值在不同芯片间可能会有所不同。
|
||||
|
||||
.. note::
|
||||
|
||||
PSRAM 在 120M 运行时需要相位点校准算法。相位点设置与启动时的温度有关。当芯片运行期间温度大幅上升（下降）时，PSRAM 可能会出现读写错误。为解决这一问题，可以使能 :ref:`CONFIG_SPIRAM_TIMING_TUNING_POINT_VIA_TEMPERATURE_SENSOR`，根据温度值动态调整 PSRAM 相位点。这将创建一个任务，每隔 :ref:`CONFIG_SPIRAM_TIMING_MEASURE_TEMPERATURE_INTERVAL_SECOND` 秒测量一次温度，并相应调整 PSRAM 相位点。
|
||||
|
||||
F8R8 硬件
|
||||
^^^^^^^^^
|
||||
|
||||
|
||||
Loading…
Reference in New Issue
Block a user