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Use the arm virtual counter in the arm64 loader

Description

Use the arm virtual counter in the arm64 loader

It exist on all ARMv8+ CPUs, and other boot loaders rely on it being
present.

Sponsored by: Innovate UK
Differential Revision: https://reviews.freebsd.org/D30410

Details

Provenance
andrewAuthored on May 12 2021, 7:45 AM
Differential Revision
D30410: Use the arm virtual counter to get the time on arm64
Parents
rG25593adbc125: arm: allwinner: Add clock driver for Display Engine to the build
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