riscv: Add Kconfig to support RISC-V

[oweals/u-boot.git] / arch / riscv / config.mk

diff --git a/arch/riscv/config.mk b/arch/riscv/config.mk
new file mode 100644 (file)
index 0000000..6b681c4
--- /dev/null
+++ b/arch/riscv/config.mk
@@ -0,0 +1,33 @@
+#
+# (C) Copyright 2000-2002
+# Wolfgang Denk, DENX Software Engineering, wd@denx.de.
+#
+# Copyright (c) 2017 Microsemi Corporation.
+# Padmarao Begari, Microsemi Corporation <padmarao.begari@microsemi.com>
+#
+# Copyright (C) 2017 Andes Technology Corporation
+# Rick Chen, Andes Technology Corporation <rick@andestech.com>
+#
+# SPDX-License-Identifier:     GPL-2.0+
+
+ifeq ($(CROSS_COMPILE),)
+CROSS_COMPILE := riscv32-unknown-linux-gnu-
+endif
+
+32bit-emul             := elf32lriscv
+64bit-emul             := elf64lriscv
+
+ifdef CONFIG_32BIT
+PLATFORM_LDFLAGS       += -m $(32bit-emul)
+endif
+
+ifdef CONFIG_64BIT
+PLATFORM_LDFLAGS       += -m $(64bit-emul)
+endif
+
+CONFIG_STANDALONE_LOAD_ADDR = 0x00000000 \
+                             -T $(srctree)/examples/standalone/riscv.lds
+
+PLATFORM_CPPFLAGS      += -ffixed-gp -fpic
+PLATFORM_RELFLAGS += -fno-strict-aliasing -fno-common -gdwarf-2
+LDFLAGS_u-boot += --gc-sections -static -pie