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| author | Randolph <randolph@andestech.com> | 2023-10-12 14:35:04 +0800 |
|---|---|---|
| committer | Leo Yu-Chi Liang <ycliang@andestech.com> | 2023-10-19 17:29:33 +0800 |
| commit | e09a2287c1faf8951ec7e7517788dae55d41a2c6 (patch) | |
| tree | 851202eba8b78673672a63c4e3bb5cf6b9c01837 | |
| parent | 5367b9e798279bd28d920212e842f637eec359bc (diff) | |
| download | u-boot-e09a2287c1faf8951ec7e7517788dae55d41a2c6.zip u-boot-e09a2287c1faf8951ec7e7517788dae55d41a2c6.tar.gz u-boot-e09a2287c1faf8951ec7e7517788dae55d41a2c6.tar.bz2 | |
riscv: kconfig: introduce SPL_LOAD_FIT_OPENSBI_OS_BOOT symbol
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>
Reviewed-by: Simon Glass <sjg@chromium.org>
| -rw-r--r-- | arch/riscv/Kconfig | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/arch/riscv/Kconfig b/arch/riscv/Kconfig index 183885e..49b6e1a 100644 --- a/arch/riscv/Kconfig +++ b/arch/riscv/Kconfig @@ -424,4 +424,12 @@ config TPL_USE_ARCH_MEMSET endmenu +config SPL_LOAD_FIT_OPENSBI_OS_BOOT + bool "Enable SPL (OpenSBI OS boot mode) applying linux from FIT" + depends on SPL_LOAD_FIT + help + Use fw_dynamic from the FIT image, and u-boot SPL will invoke it directly. + This is a shortcut boot flow, from u-boot SPL -> OpenSBI -> u-boot proper + -> linux to u-boot SPL -> OpenSBI -> linux. + endmenu |