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light sleep: set wifi light sleep clock source to rtc slow clock

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This commit is contained in:
Li Shuai 2021-04-08 11:40:19 +08:00
parent e3c13f8770
commit 366d0a724a
1 changed files with 5 additions and 0 deletions
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5
components/esp_system/port/soc/esp32s3/clk.c
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@ -311,6 +311,11 @@ __attribute__((weak)) void esp_perip_clk_init(void)
CLEAR_PERI_REG_MASK(SYSTEM_WIFI_CLK_EN_REG, wifi_bt_sdio_clk);
SET_PERI_REG_MASK(SYSTEM_WIFI_CLK_EN_REG, SYSTEM_WIFI_CLK_EN);
/* Set WiFi light sleep clock source to RTC slow clock */
REG_SET_FIELD(SYSTEM_BT_LPCK_DIV_INT_REG, SYSTEM_BT_LPCK_DIV_NUM, 0);
CLEAR_PERI_REG_MASK(SYSTEM_BT_LPCK_DIV_FRAC_REG, SYSTEM_LPCLK_SEL_8M);
SET_PERI_REG_MASK(SYSTEM_BT_LPCK_DIV_FRAC_REG, SYSTEM_LPCLK_SEL_RTC_SLOW);
/* Enable RNG clock. */
periph_module_enable(PERIPH_RNG_MODULE);
}