1. 947fc2d timer: Return count from timer_ops.get_count by Sean Anderson · Wed Oct 07 14:37:44 2020 -0400
  2. 9baaaef riscv: Rework riscv timer driver to only support S-mode by Sean Anderson · Mon Sep 28 10:52:21 2020 -0400
  3. 2539903 timer: Add generic driver for RISC-V privileged architecture defined timer by Bin Meng · Wed Dec 12 06:12:27 2018 -0800