1 files changed, 58 insertions, 0 deletions
diff --git a/make_helpers/armv7-a-cpus.mk b/make_helpers/armv7-a-cpus.mk
new file mode 100644
index 0000000..a8e9d50
--- /dev/null
+++ b/make_helpers/armv7-a-cpus.mk
@@ -0,0 +1,58 @@
+#
+# Copyright (c) 2017, ARM Limited and Contributors. All rights reserved.
+#
+# SPDX-License-Identifier: BSD-3-Clause
+#
+
+ifneq (${ARCH},aarch32)
+$(error ARM_ARCH_MAJOR=7 mandates ARCH=aarch32)
+endif
+
+# For ARMv7, set march32 from platform directive ARMV7_CORTEX_Ax=yes
+# and ARM_WITH_NEON=yes/no.
+#
+# GCC and Clang require -march=armv7-a for C-A9 and -march=armv7ve for C-A15.
+# armClang requires -march=armv7-a for all ARMv7 Cortex-A. To comply with
+# all, just drop -march and supply only -mcpu.
+
+# Platform can override march-directive through MARCH_DIRECTIVE
+ifdef MARCH_DIRECTIVE
+march-directive		:= $(MARCH_DIRECTIVE)
+else
+march32-set-${ARM_CORTEX_A5}	:= -mcpu=cortex-a5
+march32-set-${ARM_CORTEX_A7}	:= -mcpu=cortex-a7
+march32-set-${ARM_CORTEX_A9}	:= -mcpu=cortex-a9
+march32-set-${ARM_CORTEX_A12}	:= -mcpu=cortex-a12
+march32-set-${ARM_CORTEX_A15}	:= -mcpu=cortex-a15
+march32-set-${ARM_CORTEX_A17}	:= -mcpu=cortex-a17
+march32-neon-$(ARM_WITH_NEON)	:= -mfpu=neon
+
+# default to -march=armv7-a as target directive
+march32-set-yes			?= -march=armv7-a
+march-directive		:= ${march32-set-yes} ${march32-neon-yes}
+endif
+
+# Platform may override these extension support directives:
+#
+# ARMV7_SUPPORTS_LARGE_PAGE_ADDRESSING
+# Defined if core supports the Large Page Addressing extension.
+#
+# ARMV7_SUPPORTS_VIRTUALIZATION
+# Defined if ARMv7 core supports the Virtualization extension.
+#
+# ARMV7_SUPPORTS_GENERIC_TIMER
+# Defined if ARMv7 core supports the Generic Timer extension.
+
+ifeq ($(filter yes,$(ARM_CORTEX_A7) $(ARM_CORTEX_A12) $(ARM_CORTEX_A15) $(ARM_CORTEX_A17)),yes)
+$(eval $(call add_defines,\
+    $(sort \
+        ARMV7_SUPPORTS_LARGE_PAGE_ADDRESSING \
+        ARMV7_SUPPORTS_VIRTUALIZATION \
+        ARMV7_SUPPORTS_GENERIC_TIMER \
+        ARMV7_SUPPORTS_VFP \
+)))
+endif
+
+ifeq ($(ARM_CORTEX_A5),yes)
+$(eval $(call add_define,ARM_CORTEX_A5))
+endif