1 files changed, 72 insertions, 0 deletions
diff --git a/drivers/auth/mbedtls/mbedtls_crypto.mk b/drivers/auth/mbedtls/mbedtls_crypto.mk
new file mode 100644
index 00000000..d6fc7eb5
--- /dev/null
+++ b/drivers/auth/mbedtls/mbedtls_crypto.mk
@@ -0,0 +1,72 @@
+#
+# Copyright (c) 2015-2017, ARM Limited and Contributors. All rights reserved.
+#
+# SPDX-License-Identifier: BSD-3-Clause
+#
+
+include drivers/auth/mbedtls/mbedtls_common.mk
+
+# The platform may define the variable 'TF_MBEDTLS_KEY_ALG' to select the key
+# algorithm to use. If the variable is not defined, select it based on algorithm
+# used for key generation `KEY_ALG`. If `KEY_ALG` is not defined or is
+# defined to `rsa`/`rsa_1_5`, then set the variable to `rsa`.
+ifeq (${TF_MBEDTLS_KEY_ALG},)
+    ifeq (${KEY_ALG}, ecdsa)
+        TF_MBEDTLS_KEY_ALG		:=	ecdsa
+    else
+        TF_MBEDTLS_KEY_ALG		:=	rsa
+    endif
+endif
+
+# If MBEDTLS_KEY_ALG build flag is defined use it to set TF_MBEDTLS_KEY_ALG for
+# backward compatibility
+ifdef MBEDTLS_KEY_ALG
+    ifeq (${ERROR_DEPRECATED},1)
+        $(error "MBEDTLS_KEY_ALG is deprecated. Please use the new build flag TF_MBEDTLS_KEY_ALG")
+    endif
+    $(warning "MBEDTLS_KEY_ALG is deprecated. Please use the new build flag TF_MBEDTLS_KEY_ALG")
+    TF_MBEDTLS_KEY_ALG	:= ${MBEDTLS_KEY_ALG}
+endif
+
+MBEDTLS_CRYPTO_SOURCES		:=	drivers/auth/mbedtls/mbedtls_crypto.c	\
+					$(addprefix ${MBEDTLS_DIR}/library/,	\
+					bignum.c				\
+					md.c					\
+					md_wrap.c				\
+					pk.c 					\
+					pk_wrap.c 				\
+					pkparse.c 				\
+					pkwrite.c 				\
+					sha256.c				\
+					)
+
+# Key algorithm specific files
+MBEDTLS_ECDSA_CRYPTO_SOURCES	+=	$(addprefix ${MBEDTLS_DIR}/library/,	\
+					ecdsa.c					\
+					ecp_curves.c				\
+					ecp.c					\
+					)
+
+MBEDTLS_RSA_CRYPTO_SOURCES	+=	$(addprefix ${MBEDTLS_DIR}/library/,	\
+					rsa.c					\
+					)
+
+ifeq (${TF_MBEDTLS_KEY_ALG},ecdsa)
+    MBEDTLS_CRYPTO_SOURCES	+=	$(MBEDTLS_ECDSA_CRYPTO_SOURCES)
+    TF_MBEDTLS_KEY_ALG_ID	:=	TF_MBEDTLS_ECDSA
+else ifeq (${TF_MBEDTLS_KEY_ALG},rsa)
+    MBEDTLS_CRYPTO_SOURCES	+=	$(MBEDTLS_RSA_CRYPTO_SOURCES)
+    TF_MBEDTLS_KEY_ALG_ID	:=	TF_MBEDTLS_RSA
+else ifeq (${TF_MBEDTLS_KEY_ALG},rsa+ecdsa)
+    MBEDTLS_CRYPTO_SOURCES	+=	$(MBEDTLS_ECDSA_CRYPTO_SOURCES)
+    MBEDTLS_CRYPTO_SOURCES	+=	$(MBEDTLS_RSA_CRYPTO_SOURCES)
+    TF_MBEDTLS_KEY_ALG_ID	:=	TF_MBEDTLS_RSA_AND_ECDSA
+else
+    $(error "TF_MBEDTLS_KEY_ALG=${TF_MBEDTLS_KEY_ALG} not supported on mbed TLS")
+endif
+
+# Needs to be set to drive mbed TLS configuration correctly
+$(eval $(call add_define,TF_MBEDTLS_KEY_ALG_ID))
+
+BL1_SOURCES			+=	${MBEDTLS_CRYPTO_SOURCES}
+BL2_SOURCES			+=	${MBEDTLS_CRYPTO_SOURCES}