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riscv: aw_timer enablement for D1
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Authored by mhorne on Jan 24 2025, 7:36 PM.
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Details

Summary

The SBI timer functionality is partially broken on the Allwinner D1, so
we require this driver to provide an eventtimer/system timer interrupts.

The timecounter interface, on the other hand, is not required. The
generic RISC-V timer driver uses the native rdtime instruction, and
implements vdso, so this should be preferred.

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rG FreeBSD src repository
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