On 32bit RISC-V calls to __ashrdi3 and __lshrdi3 are generated. These functions are normally provided by glibc but U-Boot is freestanding and needs its own implementation.
Signed-off-by: Heinrich Schuchardt heinrich.schuchardt@canonical.com --- v2: new patch --- arch/riscv/lib/Makefile | 1 + arch/riscv/lib/bitops.S | 15 +++++++++++++++ 2 files changed, 16 insertions(+) create mode 100644 arch/riscv/lib/bitops.S
diff --git a/arch/riscv/lib/Makefile b/arch/riscv/lib/Makefile index 06020fcc2a..cfd7a47f65 100644 --- a/arch/riscv/lib/Makefile +++ b/arch/riscv/lib/Makefile @@ -6,6 +6,7 @@ # Copyright (C) 2017 Andes Technology Corporation # Rick Chen, Andes Technology Corporation rick@andestech.com
+obj-y += bitops.o obj-$(CONFIG_CMD_BOOTM) += bootm.o obj-$(CONFIG_CMD_BOOTI) += bootm.o image.o obj-$(CONFIG_CMD_GO) += boot.o diff --git a/arch/riscv/lib/bitops.S b/arch/riscv/lib/bitops.S new file mode 100644 index 0000000000..a2a1ab2376 --- /dev/null +++ b/arch/riscv/lib/bitops.S @@ -0,0 +1,15 @@ +/* SPDX-License-Identifier: GPL-2.0+ */ + +#include <config.h> +#include <linux/linkage.h> + +.pushsection .text.rvbitops, "ax" +ENTRY(__ashldi3) + sll a0, a0, a1 + ret +ENDPROC(__ashldi3) + +ENTRY(__lshrdi3) + srl a0, a0, a1 + ret +ENDPROC(__lshrdi3)