Andrew Turner a3dff126f9 Add a driver for the EFI RTC. This uses the EFI Runtime Services to query ... the system time. As we seem to only read this time on boot, and this is the only source of time on many arm64 machines we need to enable this by default there. As this is not always the case with U-Boot firmware, or when we have been booted from a non-UEFI environment we only enable the device driver when the Runtime Services are present and reading the time doesn't result in an error. PR: 212185 Reviewed by: imp, kib Tested by: emaste Relnotes: yes Sponsored by: DARPA, AFRL Differential Revision: https://reviews.freebsd.org/D12650		2017-11-21 17:23:16 +00:00
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Makefile	Add a driver for the EFI RTC. This uses the EFI Runtime Services to query	2017-11-21 17:23:16 +00:00