diff options
| author | Bin Meng <bmeng.cn@gmail.com> | 2018-12-12 06:12:45 -0800 |
|---|---|---|
| committer | Andes <uboot@andestech.com> | 2018-12-18 09:56:27 +0800 |
| commit | 51ab4570f3920ae3d6822c96fe03ffb97e2072b4 (patch) | |
| tree | 7474fc94b643c1627d43c4b9029d1dc4d3f46f90 /arch/riscv/cpu/start.S | |
| parent | 7f5d35a547afb1e4d8e7ca780ab1b9f78ed11d68 (diff) | |
riscv: Save boot hart id to the global data
At present the hart id passed via a0 in the U-Boot entry is saved
to s0 at the beginning but does not preserve later. Save it to the
global data structure so that it can be used later.
Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Lukas Auer <lukas.auer@aisec.fraunhofer.de>
Reviewed-by: Anup Patel <anup@brainfault.org>
Diffstat (limited to 'arch/riscv/cpu/start.S')
| -rw-r--r-- | arch/riscv/cpu/start.S | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/arch/riscv/cpu/start.S b/arch/riscv/cpu/start.S index 47c3bf0434..81ea52b170 100644 --- a/arch/riscv/cpu/start.S +++ b/arch/riscv/cpu/start.S @@ -14,6 +14,7 @@ #include <common.h> #include <elf.h> #include <asm/encoding.h> +#include <generated/asm-offsets.h> #ifdef CONFIG_32BIT #define LREG lw @@ -70,6 +71,9 @@ call_board_init_f_0: jal board_init_f_init_reserve + /* save the boot hart id to global_data */ + SREG s0, GD_BOOT_HART(gp) + mv a0, zero /* a0 <-- boot_flags = 0 */ la t5, board_init_f jr t5 /* jump to board_init_f() */ |