riscv: add SPL support
U-Boot SPL on the generic RISC-V CPU supports two boot flows, directly jumping to the image and via OpenSBI firmware. In the first case, both U-Boot SPL and proper must be compiled to run in the same privilege mode. Using OpenSBI firmware, U-Boot SPL must be compiled for machine mode and U-Boot proper for supervisor mode. To be able to use SPL, boards have to provide a supported SPL boot device. Signed-off-by: NLukas Auer <lukas.auer@aisec.fraunhofer.de> Reviewed-by: NBin Meng <bmeng.cn@gmail.com> Tested-by: NBin Meng <bmeng.cn@gmail.com> Reviewed-by: NAnup Patel <anup.patel@wdc.com>
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arch/riscv/cpu/u-boot-spl.lds
0 → 100644
arch/riscv/include/asm/spl.h
0 → 100644
arch/riscv/lib/spl.c
0 → 100644
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