riscv: cpu: set gp before board_init_f_init_reserve

Restore global pointer before board_init_f_init_reserve call,
as "a0" can be set in harts_early_init call and we end up with
invalid global pointer.

Signed-off-by: Nikita Shubin <n.shubin@yadro.com>
Reviewed-by: Leo Yu-Chi Liang <ycliang@andestech.com>

diff --git a/arch/riscv/cpu/start.S b/arch/riscv/cpu/start.S
index f2ef556..ac81783 100644 (file)
--- a/arch/riscv/cpu/start.S
+++ b/arch/riscv/cpu/start.S
@@ -143,6 +143,7 @@ call_harts_early_init:
        bnez    tp, secondary_hart_loop
 #endif
 
+       mv      a0, s0
        jal     board_init_f_init_reserve
 
        SREG    s1, GD_FIRMWARE_FDT_ADDR(gp)