> From: Sean Anderson [mailto:sean...@gmail.com] > Sent: Tuesday, January 28, 2020 5:40 AM > To: U-Boot Mailing List > Cc: Bin Meng; Lukas Auer; anup.pa...@wdc.com; Rick Jian-Zhi Chen(陳建志) > Subject: [PATCH] riscv: Remove unnecessary instruction > > The add instruction on risc-v can have any three sources and targets, so > there is no need for an intermediate mov. > > Signed-off-by: Sean Anderson <sean...@gmail.com>
Reviewed-by: Rick Chen <r...@andestech.com> > --- > arch/riscv/cpu/start.S | 5 ++--- > 1 file changed, 2 insertions(+), 3 deletions(-) > > diff --git a/arch/riscv/cpu/start.S b/arch/riscv/cpu/start.S index > 1a55b7d570..365163ad19 100644 > --- a/arch/riscv/cpu/start.S > +++ b/arch/riscv/cpu/start.S > @@ -359,9 +359,8 @@ relocate_secondary_harts: > call_board_init_r: > jal invalidate_icache_all > jal flush_dcache_all > - la t0, board_init_r > - mv t4, t0 /* offset of board_init_r() */ > - add t4, t4, t6 /* real address of board_init_r() */ > + la t0, board_init_r /* offset of board_init_r() */ > + add t4, t0, t6 /* real address of board_init_r() */ > /* > * setup parameters for board_init_r > */ > --
