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soc/rtc: Force power on 8M clock if it is used to derive RTC slow clock

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This commit is contained in:
Ivan Grokhotkov 2018-08-13 01:11:32 +03:00
parent 8365f0f5d2
commit 5bf3654637
1 changed files with 6 additions and 0 deletions
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6
components/soc/esp32/rtc_sleep.c
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@ -197,6 +197,12 @@ void rtc_sleep_init(rtc_sleep_config_t cfg)
REG_SET_FIELD(RTC_CNTL_OPTIONS0_REG, RTC_CNTL_XTL_FORCE_PU, cfg.xtal_fpu);
if (REG_GET_FIELD(RTC_CNTL_CLK_CONF_REG, RTC_CNTL_ANA_CLK_RTC_SEL) == RTC_SLOW_FREQ_8MD256) {
REG_SET_BIT(RTC_CNTL_CLK_CONF_REG, RTC_CNTL_CK8M_FORCE_PU);
} else {
REG_CLR_BIT(RTC_CNTL_CLK_CONF_REG, RTC_CNTL_CK8M_FORCE_PU);
}
/* enable VDDSDIO control by state machine */
REG_CLR_BIT(RTC_CNTL_SDIO_CONF_REG, RTC_CNTL_SDIO_FORCE);
REG_SET_FIELD(RTC_CNTL_SDIO_CONF_REG, RTC_CNTL_SDIO_PD_EN, cfg.vddsdio_pd_en);