On Wed, 11 Oct 2023 at 23:42, Randolph randolph@andestech.com wrote:
Introduce common Kconfig symbol for riscv architecture. This symbol SPL_LOAD_FIT_OPENSBI_OS_BOOT is like falcon mode on ARM, the Falcon boot is a shortcut boot method for SD/eMMC targets. It skips the loading the RAM version U-Boot. Instead, it will loads the FIT image and boots directly to Linux.
When SPL_OPENSBI_OS_BOOT is enabled, linux.itb is created after compilation instead of the default u-boot.itb. It initialises memory with the U-Boot SPL at the first stage, just as a normal boot process does at the beginning. Instead of jumping to the U-Boot proper from OpenSBI before booting the Linux kernel, the RISC-V falcon mode process jumps directly to the Linux kernel to gain shorter booting time.
Signed-off-by: Randolph randolph@andestech.com
arch/riscv/Kconfig | 8 ++++++++ 1 file changed, 8 insertions(+)
Reviewed-by: Simon Glass sjg@chromium.org