Displaying 1 result from an estimated 1 matches for "crystal_mhz".
2015 Sep 18
2
PWM-based voltage management input clock
...the input clock frequency for the PWM controller. It seems like
RM is assuming an input clock of 27.648 MHz instead of the actual 27MHz
crystal found on the board.
I thus have the following questions:
- Is it a fixed value hardcoded in RM? (Current way it is done in Nouveau)
- Should we use crystal_MHz * 1.024?
I could spend some time hooking up my osciloscope to the VR to check if
it is a bringup issue but it would not help Nouveau much as we need to
reproduce the behaviour of RM anyway since this is the only validated
configuration.
Thanks in advance,
Martin
PS: The registers for this PWM...