Most RISC-V SoCs have similar cleanup_before_linux() functions. Let's provide a weak symbol as fallback to reduce duplicated code.
Signed-off-by: Yao Zi ziyao@disroot.org --- arch/riscv/cpu/cpu.c | 17 +++++++++++++++++ 1 file changed, 17 insertions(+)
diff --git a/arch/riscv/cpu/cpu.c b/arch/riscv/cpu/cpu.c index 06ecd92b9bc..5b31da64cbd 100644 --- a/arch/riscv/cpu/cpu.c +++ b/arch/riscv/cpu/cpu.c @@ -11,11 +11,13 @@ #include <event.h> #include <hang.h> #include <init.h> +#include <irq_func.h> #include <log.h> #include <asm/encoding.h> #include <asm/system.h> #include <asm/hwcap.h> #include <asm/cpufeature.h> +#include <asm/cache.h> #include <dm/uclass-internal.h> #include <linux/bitops.h> #include <linux/log2.h> @@ -729,3 +731,18 @@ void reset_cpu(void) hang(); } #endif + +/* + * cleanup_before_linux() is called just before we call linux, which prepares + * the processor for linux. + * this weak implementation is used by default. we disable interrupts and flush + * the cache. + */ +__weak int cleanup_before_linux(void) +{ + disable_interrupts(); + + cache_flush(); + + return 0; +}