diff options
Diffstat (limited to 'firmware/fw_base.S')
| -rw-r--r-- | firmware/fw_base.S | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/firmware/fw_base.S b/firmware/fw_base.S index dccaef1..cf2c6a0 100644 --- a/firmware/fw_base.S +++ b/firmware/fw_base.S @@ -25,6 +25,8 @@ _start: csrr a6, CSR_MHARTID blt zero, a6, _wait_for_boot_hart + li ra, 0 + call _reset_regs /* Zero-out BSS */ la a4, _bss_start la a5, _bss_end @@ -392,6 +394,8 @@ _trap_handler_all_mode: .globl _reset_regs _reset_regs: + /* flush the instruction cache */ + fence.i /* Reset all registers except ra, a0,a1 */ li sp, 0 li gp, 0 |