ARMv7 may not support large page addressing
ARCH_SUPPORTS_LARGE_PAGE_ADDRESSING allows build environment to
handle specific case when target ARMv7 core only supports 32bit MMU
descriptor mode.
If ARMv7 based platform does not set ARM_CORTEX_Ax=yes, platform
shall define ARMV7_SUPPORTS_LARGE_PAGE_ADDRESSING to enable
large page addressing support.
Signed-off-by: Etienne Carriere <etienne.carriere@linaro.org>
diff --git a/make_helpers/armv7-a-cpus.mk b/make_helpers/armv7-a-cpus.mk
index 5a1c75c..c6491aa 100644
--- a/make_helpers/armv7-a-cpus.mk
+++ b/make_helpers/armv7-a-cpus.mk
@@ -31,3 +31,12 @@
march32-set-yes ?= -march=armv7-a
march32-directive := ${march32-set-yes} ${march32-neon-yes}
endif
+
+# Platform may override these extension support directives:
+#
+# ARMV7_SUPPORTS_LARGE_PAGE_ADDRESSING
+# Defined if core supports the Large Page Addressing extension.
+
+ifeq ($(filter yes,$(ARM_CORTEX_A7) $(ARM_CORTEX_A12) $(ARM_CORTEX_A15) $(ARM_CORTEX_A17)),yes)
+$(eval $(call add_define,ARMV7_SUPPORTS_LARGE_PAGE_ADDRESSING))
+endif