riscv: Add Zbb support for building U-Boot
This patch adds ISA string to the -march to generate zbb instructions
for U-Boot binaries, along with optimized string functions introduced
from Linux kernel.
Signed-off-by: Yu Chien Peter Lin <peterlin@andestech.com>
Reviewed-by: Leo Yu-Chi Liang <ycliang@andestech.com>
diff --git a/arch/riscv/lib/Makefile b/arch/riscv/lib/Makefile
index 02c4d8f..9a05b66 100644
--- a/arch/riscv/lib/Makefile
+++ b/arch/riscv/lib/Makefile
@@ -42,5 +42,8 @@
obj-$(CONFIG_$(SPL_TPL_)USE_ARCH_MEMSET) += memset.o
obj-$(CONFIG_$(SPL_TPL_)USE_ARCH_MEMMOVE) += memmove.o
obj-$(CONFIG_$(SPL_TPL_)USE_ARCH_MEMCPY) += memcpy.o
+obj-$(CONFIG_$(SPL_TPL_)USE_ARCH_STRLEN) += strlen_zbb.o
+obj-$(CONFIG_$(SPL_TPL_)USE_ARCH_STRCMP) += strcmp_zbb.o
+obj-$(CONFIG_$(SPL_TPL_)USE_ARCH_STRNCMP) += strncmp_zbb.o
obj-$(CONFIG_$(SPL_TPL_)SEMIHOSTING) += semihosting.o