[riot-notifications] [RIOT-OS/RIOT] cpu/samd5x: CPU init fixes (#11655)

Dylan Laduranty notifications at github.com
Tue Jun 18 09:51:51 CEST 2019


dylad commented on this pull request.

I'll test it on hardware when everything will be addressed.

>  
+    /* Without LBYPASS, startup takes very long, reson unknown. */

Reason is sillicon bug,
check errata [there](http://ww1.microchip.com/downloads/en/DeviceDoc/SAM-D5X-E5X-Family-Silicon-Errata-and-Data-Sheet-Clarification-80000748F.pdf). section 2.13


>      OSCCTRL->Dpll[0].DPLLCTRLB.reg = OSCCTRL_DPLLCTRLB_REFCLK_GCLK
-                       | OSCCTRL_DPLLCTRLB_WUF

I would be better to not remove this regarding errata stuff.

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