diff options
| author | Heinrich Schuchardt | 2022-11-08 15:53:12 +0100 |
|---|---|---|
| committer | Leo Yu-Chi Liang | 2022-11-15 15:37:17 +0800 |
| commit | 5c89467262f1bad0fe089a8d2c3b1560a1f7a3db (patch) | |
| tree | 91942813f86ca66b89f99261110f3d102bc1de49 /arch/riscv | |
| parent | c277c787a09254ebdf919c7cfc94631fe854677d (diff) | |
riscv: clarify meaning of CONFIG_SBI_V02
Describe that CONFIG_SBI_V02=y does not mean SBI specification v0.2
but v0.2 or later.
Signed-off-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>
Reviewed-by: Rick Chen <rick@andestech.com>
Diffstat (limited to 'arch/riscv')
| -rw-r--r-- | arch/riscv/Kconfig | 14 |
1 files changed, 7 insertions, 7 deletions
diff --git a/arch/riscv/Kconfig b/arch/riscv/Kconfig index 4d64e9be3f2..ebc4bef220e 100644 --- a/arch/riscv/Kconfig +++ b/arch/riscv/Kconfig @@ -257,16 +257,16 @@ config SBI_V01 deprecated in future once legacy M-mode software are no longer in use. config SBI_V02 - bool "SBI v0.2 support" + bool "SBI v0.2 or later 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. + The SBI specification introduced the concept of extensions in version + v0.2. With this configuration option U-Boot can detect and use SBI + extensions. With the HSM extension introduced in SBI 0.2, only a + single hart needs to boot and enter the 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 + Choose this option if OpenSBI release v0.7 or above is used together with U-Boot. endchoice |