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change(esp_hw_support): set cpu clk 80m by selecting source pll240m and divider 3

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squash! change(esp_hw_support): set cpu clk 80m by selecting source pll240m and divider 3

squash! change(esp_hw_support): set cpu clk 80m by selecting source pll240m and divider 3

squash! change(esp_hw_support): set cpu clk 80m by selecting source pll240m and divider 3
This commit is contained in:
Lou Tianhao 2024-07-16 21:13:14 +08:00
parent 538e3a767b
commit 04485a655f
1 changed files with 12 additions and 3 deletions
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15
components/esp_hw_support/port/esp32c5/rtc_clk.c
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@ -20,6 +20,8 @@
#include "hal/gpio_ll.h"
#include "soc/lp_aon_reg.h"
#include "esp_private/sleep_event.h"
#include "hal/efuse_hal.h"
#include "soc/chip_revision.h"
#if SOC_MODEM_CLOCK_SUPPORTED
#include "esp_private/esp_modem_clock.h"
@ -265,9 +267,16 @@ bool rtc_clk_cpu_freq_mhz_to_config(uint32_t freq_mhz, rtc_cpu_freq_config_t *ou
divider = 1;
} else if (freq_mhz == 80) {
real_freq_mhz = freq_mhz;
source = SOC_CPU_CLK_SRC_PLL_F160M;
source_freq_mhz = CLK_LL_PLL_160M_FREQ_MHZ;
divider = 2;
if (!ESP_CHIP_REV_ABOVE(efuse_hal_chip_revision(), 1)) {
// ESP32C5 has a root clock ICG issue when switching SOC_CPU_CLK_SRC from PLL_F160M to PLL_F240M
source = SOC_CPU_CLK_SRC_PLL_F240M;
source_freq_mhz = CLK_LL_PLL_240M_FREQ_MHZ;
divider = 3;
} else {
source = SOC_CPU_CLK_SRC_PLL_F160M;
source_freq_mhz = CLK_LL_PLL_160M_FREQ_MHZ;
divider = 2;
}
} else {
// unsupported frequency
return false;