- Put all clock and control unit driver in BUS_PASS_RESOURCE except
for the DE2 CCU as it needs the main CCU to be available.
- Use BUS_PASS_CPU for a20_cpu_cfg as it makes more sense.
- For aw_syscon use SCHEDULER pass as we need it early for drivers
that attach in BUS_PASS_SUPPORTDEV
- For the rest we can use BUS_PASS_SUPPORTDEV
Allwinner H3 and H5 share many internal components, that's why they can
use the same drivers.
This patch adds the compatible strings to enable clock drivers
probing on Allwinner NanoPI NEO2 device.
Tested on: NanoPi NEO2 (by submitter), OrangePi PC2 (by manu)
Submitted by: Manuel Stühn (freebsdnewbie@freenet.de)
MFC after: 2 months
Differential Revision: https://reviews.freebsd.org/D20069
Since latest DTS update the rtc is supposed to register two clocks :
- osc32k (the 32k oscillator on the board that the RTC uses directly and
that other peripheral can use)
- iosc (the internal oscillator of the RTC when available which frequency
depend on the SoC revision)
Since we need the RTC before the proper clock control unit (because it uses
those clocks) attach it a BUS_PASS_BUS + MIDDLE and attach the clock control
unit at BUS_PASS_BUS + LAST for the SoC that requires it.
Tested On: A20, H3, A64
MFC after: 1 month
Very similar to the A10 RTC controller with a few register offsets changed
and a different location for the LOSC switch status.
Submitted by: Emmanuel Vadot <manu@bidouilliste.com>
Reviewed by: jmcneill
Approved by: adrian (mentor)
Differential Revision: https://reviews.freebsd.org/D5500
