fix(mhu): use MHUv2 if PLAT_MHU_VERSION undefined
If RSS Comms is used but PLAT_MHU_VERSION was undefined then it should
default to MHUv2 to avoid breaking existing configurations which did not
need to specify PLAT_MHU_VERSION as on MHUv2 was available.
Change-Id: I8353b49b9f61414a664c2802f90ba3b2bc526887
Signed-off-by: Joel Goddard <joel.goddard@arm.com>
diff --git a/drivers/arm/rss/rss_comms.mk b/drivers/arm/rss/rss_comms.mk
index 91b830c..0d1e308 100644
--- a/drivers/arm/rss/rss_comms.mk
+++ b/drivers/arm/rss/rss_comms.mk
@@ -13,6 +13,9 @@
rss_comms_protocol_pointer_access.c \
)
+# Default to MHUv2 if PLAT_MHU_VERSION undefined
+PLAT_MHU_VERSION ?= 2
+
ifeq (${PLAT_MHU_VERSION}, 3)
RSS_COMMS_SOURCES += $(addprefix drivers/arm/mhu/, \
mhu_v3_x.c \