Ivan Grokhotkov 3323f31cfb soc: implement XTAL frequency detection ... ROM code already implements XTAL frequency detection, but it uses the 8M clock before the clock tuning parameters are initialized. With the zero clock tuning parameter, 8M clock has significant frequency deviation at high temperatures, which can lead to erroneous detection of 40 MHz crystal as a 26 MHz one. This change adds XTAL frequency detection code to rtc_clk_init routine, and detection is performed after the 8M clock tuning parameter as been initialized.		2017-04-24 15:29:30 +08:00
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test_rtc_clk.c	soc: implement XTAL frequency detection	2017-04-24 15:29:30 +08:00