arc: add dependences on MMU presence
Depending on MMU presence in CPU there're differences in HW behavior.
For example address of instruction that caused exception is put in
ECR register if MMU exists and in ERET register otherwise.
Signed-off-by: Alexey Brodkin <abrodkin@synopsys.com>
Signed-off-by: Igor Guryanov <guryanov@synopsys.com>
diff --git a/arch/arc/config.mk b/arch/arc/config.mk
index e408800..5321987 100644
--- a/arch/arc/config.mk
+++ b/arch/arc/config.mk
@@ -21,6 +21,10 @@
CROSS_COMPILE := $(ARC_CROSS_COMPILE)
endif
+ifdef CONFIG_ARC_MMU_VER
+CONFIG_MMU = 1
+endif
+
PLATFORM_CPPFLAGS += -ffixed-r25 -D__ARC__ -gdwarf-2
# Needed for relocation