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esp_rom: add common ROM API to update CPU tick rate

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This commit is contained in:
morris
2023-04-19 11:54:57 +08:00
parent 22adf838c9
commit d5fb4ff7c8
20 changed files with 61 additions and 81 deletions
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9
components/esp_hw_support/port/esp32s3/rtc_clk.c
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@@ -10,7 +10,6 @@
#include <assert.h>
#include <stdlib.h>
#include "sdkconfig.h"
#include "esp32s3/rom/ets_sys.h"
#include "esp32s3/rom/rtc.h"
#include "soc/rtc.h"
#include "esp_private/rtc_clk.h"
@@ -215,14 +214,14 @@ static void rtc_clk_cpu_freq_to_pll_mhz(int cpu_freq_mhz)
/* switch clock source */
clk_ll_cpu_set_src(SOC_CPU_CLK_SRC_PLL);
rtc_clk_apb_freq_update(80 * MHZ);
ets_update_cpu_frequency(cpu_freq_mhz);
esp_rom_set_cpu_ticks_per_us(cpu_freq_mhz);
} else {
clk_ll_cpu_set_freq_mhz_from_pll(cpu_freq_mhz);
clk_ll_cpu_set_divider(1);
/* switch clock source */
clk_ll_cpu_set_src(SOC_CPU_CLK_SRC_PLL);
rtc_clk_apb_freq_update(80 * MHZ);
ets_update_cpu_frequency(cpu_freq_mhz);
esp_rom_set_cpu_ticks_per_us(cpu_freq_mhz);
REG_SET_FIELD(RTC_CNTL_DATE_REG, RTC_CNTL_SLAVE_PD, DEFAULT_LDO_SLAVE >> pd_slave);
}
}
@@ -380,7 +379,7 @@ void rtc_clk_cpu_freq_to_xtal(int cpu_freq, int div)
REGI2C_WRITE_MASK(I2C_DIG_REG, I2C_DIG_REG_EXT_RTC_DREG, g_rtc_dbias_pvt_non_240m);
REGI2C_WRITE_MASK(I2C_DIG_REG, I2C_DIG_REG_EXT_DIG_DREG, g_dig_dbias_pvt_non_240m);
esp_rom_delay_us(40);
ets_update_cpu_frequency(cpu_freq);
esp_rom_set_cpu_ticks_per_us(cpu_freq);
/* Set divider from XTAL to APB clock. Need to set divider to 1 (reg. value 0) first. */
clk_ll_cpu_set_divider(1);
clk_ll_cpu_set_divider(div);
@@ -392,7 +391,7 @@ void rtc_clk_cpu_freq_to_xtal(int cpu_freq, int div)
static void rtc_clk_cpu_freq_to_8m(void)
{
ets_update_cpu_frequency(20);
esp_rom_set_cpu_ticks_per_us(20);
REGI2C_WRITE_MASK(I2C_DIG_REG, I2C_DIG_REG_EXT_RTC_DREG, g_rtc_dbias_pvt_non_240m);
REGI2C_WRITE_MASK(I2C_DIG_REG, I2C_DIG_REG_EXT_DIG_DREG, g_dig_dbias_pvt_non_240m);
esp_rom_delay_us(40);