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| author | davidcunado-arm <david.cunado@arm.com> | 2017-11-23 23:41:24 +0000 |
|---|---|---|
| committer | GitHub <noreply@github.com> | 2017-11-23 23:41:24 +0000 |
| commit | 71f8a6a9b0cdfcc773542844e1fcb89ba93bcbf5 (patch) | |
| tree | 19c1299ef5fc877d4982f14f881f49cfe35a05c2 /make_helpers | |
| parent | 1c64838d4b0e061f22b1b31b8fd64ea4510e1ded (diff) | |
| parent | 1d791530d0f3a4a02e285a38f35fecac4feec70c (diff) | |
Merge pull request #1145 from etienne-lms/rfc-armv7-2
Support ARMv7 architectures
Diffstat (limited to 'make_helpers')
| -rw-r--r-- | make_helpers/armv7-a-cpus.mk | 50 |
1 files changed, 50 insertions, 0 deletions
diff --git a/make_helpers/armv7-a-cpus.mk b/make_helpers/armv7-a-cpus.mk new file mode 100644 index 00000000..20e7ec53 --- /dev/null +++ b/make_helpers/armv7-a-cpus.mk @@ -0,0 +1,50 @@ +# +# 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 march32-directive through MARCH32_DIRECTIVE +ifdef MARCH32_DIRECTIVE +march32-directive := $(MARCH32_DIRECTIVE) +else +march32-set-${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 +march32-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 $(call add_define,ARMV7_SUPPORTS_LARGE_PAGE_ADDRESSING)) +$(eval $(call add_define,ARMV7_SUPPORTS_VIRTUALIZATION)) +$(eval $(call add_define,ARMV7_SUPPORTS_GENERIC_TIMER)) +endif |