Ivan Grokhotkov f11ad0c904 soc/rtc: fix spurious warnings about XTAL frequency on startup ...

1. Make sure that 8MD256 clock used to estimate XTAL frequency is enabled
   before trying to use rtc_clk_cal_ratio.
   This fixes "Bogus XTAL frequency: 0 MHz" warnings after software reset.

2. Don't call rtc_clk_xtal_freq_estimate if XTAL frequency is already
   known. This reduces startup time after deep sleep or software reset.

3. Compare known XTAL frequency and estimated one before printing a
   warning. This fixes "Possibly invalid CONFIG_ESP32_XTAL_FREQ setting
   (40MHz). Detected 40 MHz." warnings.

2017-10-26 19:53:53 +08:00

..

include/soc

soc/rtc: add a function to wait for slow clock cycle

2017-10-26 19:53:53 +08:00

test

soc/rtc: add tests for CPU frequency switching

2017-10-26 19:53:53 +08:00

cpu_util.c

soc: add source code of rtc_clk, rtc_pm

2017-04-11 15:45:54 +08:00

i2c_apll.h

soc: add source code of rtc_clk, rtc_pm

2017-04-11 15:45:54 +08:00

i2c_bbpll.h

soc: add source code of rtc_clk, rtc_pm

2017-04-11 15:45:54 +08:00

i2c_rtc_clk.h

soc: add source code of rtc_clk, rtc_pm

2017-04-11 15:45:54 +08:00

rtc_clk.c

soc/rtc: fix spurious warnings about XTAL frequency on startup

2017-10-26 19:53:53 +08:00

rtc_init.c

soc: fix typo in register name

2017-07-06 12:36:06 +08:00

rtc_pm.c

soc: add source code of rtc_clk, rtc_pm

2017-04-11 15:45:54 +08:00

rtc_sleep.c

sleep: add light sleep, factor out APIs common for deep/light sleep

2017-09-01 10:36:14 +08:00

rtc_time.c

soc/rtc: add a function to wait for slow clock cycle

2017-10-26 19:53:53 +08:00

soc_log.h

soc: add source code of rtc_clk, rtc_pm

2017-04-11 15:45:54 +08:00

soc_memory_layout.c

Add logic to make external RAM usable with malloc()

2017-09-28 17:17:50 +08:00