1. 489b25a riscv: Adjust board_get_usable_ram_top() for 32-bit by Bin Meng · Sun Jan 31 20:35:57 2021 +0800
  2. 25269c0 riscv: cpu: fu540: Add support for cpu fu540 by Pragnesh Patel · Fri May 29 11:33:34 2020 +0530