cert_create: Introduce TBBR CoT makefile
Move all TBBR-specific stuff out of the tool's makefile into a
sub-makefile. This will make it easier to define and select an alternate
chain of trust in the future.
Change-Id: I92e366a1999b74cf51127d1771b64b807cd94b29
Signed-off-by: Sandrine Bailleux <sandrine.bailleux@arm.com>
diff --git a/tools/cert_create/src/tbbr/tbbr.mk b/tools/cert_create/src/tbbr/tbbr.mk
new file mode 100644
index 0000000..ee82d31
--- /dev/null
+++ b/tools/cert_create/src/tbbr/tbbr.mk
@@ -0,0 +1,29 @@
+#
+# Copyright (c) 2020, Arm Limited. All rights reserved.
+#
+# SPDX-License-Identifier: BSD-3-Clause
+#
+
+USE_TBBR_DEFS := 1
+$(eval $(call add_define,USE_TBBR_DEFS))
+
+ifeq (${USE_TBBR_DEFS},1)
+# In this case, cert_tool is platform-independent
+PLAT_MSG := TBBR Generic
+PLAT_INCLUDE := ../../include/tools_share
+else
+PLAT_MSG := ${PLAT}
+
+TF_PLATFORM_ROOT := ../../plat/
+include ${MAKE_HELPERS_DIRECTORY}plat_helpers.mk
+
+PLAT_INCLUDE := $(wildcard ${PLAT_DIR}include)
+
+ifeq ($(PLAT_INCLUDE),)
+ $(error "Error: Invalid platform '${PLAT}' has no include directory.")
+endif
+endif
+
+OBJECTS += src/tbbr/tbb_cert.o \
+ src/tbbr/tbb_ext.o \
+ src/tbbr/tbb_key.o