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| author | Bin Meng <bmeng.cn@gmail.com> | 2020-04-16 18:09:32 +0300 |
|---|---|---|
| committer | Andes <uboot@andestech.com> | 2020-04-23 05:14:06 +0300 |
| commit | ff0fa6c1b31b6b48db7864dd01819842d6c02648 (patch) | |
| tree | c47c1cc35deade6d4dec2a86877cce2618c921c4 | |
| parent | 6fa022e8fc7fd180c05934e71d4b9351b549f5b7 (diff) | |
| download | u-boot-ff0fa6c1b31b6b48db7864dd01819842d6c02648.tar.xz | |
riscv: Add Kconfig option for SBI v0.2
SBI v0.2 is more scalable and extendable to handle future needs
for RISC-V supervisor interfaces. For example, with SBI v0.2 HSM
extension, only a single hart need to boot and enter operating
system. The booting hart can bring up secondary harts one by one
afterwards.
Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Atish Patra <atish.patra@wdc.com>
| -rw-r--r-- | arch/riscv/Kconfig | 20 |
1 files changed, 19 insertions, 1 deletions
diff --git a/arch/riscv/Kconfig b/arch/riscv/Kconfig index a252cdbb71..c729871813 100644 --- a/arch/riscv/Kconfig +++ b/arch/riscv/Kconfig @@ -226,14 +226,32 @@ config SBI bool default y if RISCV_SMODE || SPL_RISCV_SMODE +choice + prompt "SBI support" + default SBI_V01 + config SBI_V01 bool "SBI v0.1 support" - default y depends on SBI help This config allows kernel to use SBI v0.1 APIs. This will be deprecated in future once legacy M-mode software are no longer in use. +config SBI_V02 + bool "SBI v0.2 support" + depends on SBI + help + This config allows kernel to use SBI v0.2 APIs. SBI v0.2 is more + scalable and extendable to handle future needs for RISC-V supervisor + interfaces. For example, with SBI v0.2 HSM extension, only a single + hart need to boot and enter operating system. The booting hart can + bring up secondary harts one by one afterwards. + + Choose this option if OpenSBI v0.7 or above release is used together + with U-Boot. + +endchoice + config SBI_IPI bool depends on SBI |