[PATCH v2 1/8] riscv: Make A ISA extension selectable

Make the Atomic (A) ISA extension selectable. Thus CPUs such as Ibex without the A extension can be supported.

Signed-off-by: Chia-Wei Wang chiawei_wang@aspeedtech.com Reviewed-by: Leo Yu-Chi Liang ycliang@andestech.com --- arch/riscv/Kconfig | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/arch/riscv/Kconfig b/arch/riscv/Kconfig index fa3b016c527..c5859c5c541 100644 --- a/arch/riscv/Kconfig +++ b/arch/riscv/Kconfig @@ -308,7 +308,10 @@ config TPL_USE_ARCH_STRNCMP endmenu

config RISCV_ISA_A - def_bool y + bool "Standard extension for Atomic Instructions" + default y + help + Adds "A" to the ISA string passed to the compiler.

config DMA_ADDR_T_64BIT bool