diff options
| author | Damien Le Moal <damien.lemoal@wdc.com> | 2019-10-28 13:10:33 +0100 |
|---|---|---|
| committer | Paul Walmsley <paul.walmsley@sifive.com> | 2019-11-13 22:20:02 +0100 |
| commit | eded8bc66a0c2c43a1789ac6c973e2c5d47eac12 (patch) | |
| tree | 69141b205a7739d3b268a3e2fa30922ea7e428e3 | |
| parent | riscv: abstract out CSR names for supervisor vs machine mode (diff) | |
| download | linux-eded8bc66a0c2c43a1789ac6c973e2c5d47eac12.tar.xz linux-eded8bc66a0c2c43a1789ac6c973e2c5d47eac12.zip | |
riscv: don't allow selecting SBI based drivers for M-mode
When running in M-mode we can't use SBI based drivers. Add a new
CONFIG_RISCV_SBI that drivers that do SBI calls can depend on
instead.
Signed-off-by: Damien Le Moal <damien.lemoal@wdc.com>
Reviewed-by: Anup Patel <anup@brainfault.org>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Paul Walmsley <paul.walmsley@sifive.com>
| -rw-r--r-- | arch/riscv/Kconfig | 6 | ||||
| -rw-r--r-- | drivers/tty/hvc/Kconfig | 2 | ||||
| -rw-r--r-- | drivers/tty/serial/Kconfig | 2 |
3 files changed, 8 insertions, 2 deletions
diff --git a/arch/riscv/Kconfig b/arch/riscv/Kconfig index 86b7e8b0471c..b85492c42ccb 100644 --- a/arch/riscv/Kconfig +++ b/arch/riscv/Kconfig @@ -76,6 +76,12 @@ config ARCH_MMAP_RND_BITS_MAX config RISCV_M_MODE bool +# set if we are running in S-mode and can use SBI calls +config RISCV_SBI + bool + depends on !RISCV_M_MODE + default y + config MMU def_bool y diff --git a/drivers/tty/hvc/Kconfig b/drivers/tty/hvc/Kconfig index 4d22b911111f..4487a6b9acc8 100644 --- a/drivers/tty/hvc/Kconfig +++ b/drivers/tty/hvc/Kconfig @@ -89,7 +89,7 @@ config HVC_DCC config HVC_RISCV_SBI bool "RISC-V SBI console support" - depends on RISCV + depends on RISCV_SBI select HVC_DRIVER help This enables support for console output via RISC-V SBI calls, which diff --git a/drivers/tty/serial/Kconfig b/drivers/tty/serial/Kconfig index 67a9eb3f94ce..540142c5b7b3 100644 --- a/drivers/tty/serial/Kconfig +++ b/drivers/tty/serial/Kconfig @@ -88,7 +88,7 @@ config SERIAL_EARLYCON_ARM_SEMIHOST config SERIAL_EARLYCON_RISCV_SBI bool "Early console using RISC-V SBI" - depends on RISCV + depends on RISCV_SBI select SERIAL_CORE select SERIAL_CORE_CONSOLE select SERIAL_EARLYCON |