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-rw-r--r--plat/arm/board/common/board_common.mk21
-rw-r--r--plat/arm/common/arm_common.mk2
2 files changed, 23 insertions, 0 deletions
diff --git a/plat/arm/board/common/board_common.mk b/plat/arm/board/common/board_common.mk
index 459156b2a..1885a600a 100644
--- a/plat/arm/board/common/board_common.mk
+++ b/plat/arm/board/common/board_common.mk
@@ -68,4 +68,25 @@ BL1_SOURCES += plat/arm/board/common/board_arm_trusted_boot.c \
BL2_SOURCES += plat/arm/board/common/board_arm_trusted_boot.c \
plat/arm/board/common/rotpk/arm_dev_rotpk.S
+# Allows platform code to provide implementation variants depending on the
+# selected chain of trust.
+$(eval $(call add_define,ARM_COT_${COT}))
+
+ifeq (${COT},dualroot)
+# Platform Root of Trust key files.
+ARM_PROT_KEY := plat/arm/board/common/protpk/arm_protprivk_rsa.pem
+ARM_PROTPK_HASH := plat/arm/board/common/protpk/arm_protpk_rsa_sha256.bin
+
+# Provide the private key to cert_create tool. It needs it to sign the images.
+PROT_KEY := ${ARM_PROT_KEY}
+
+$(eval $(call add_define_val,ARM_PROTPK_HASH,'"$(ARM_PROTPK_HASH)"'))
+
+BL1_SOURCES += plat/arm/board/common/protpk/arm_dev_protpk.S
+BL2_SOURCES += plat/arm/board/common/protpk/arm_dev_protpk.S
+
+$(BUILD_PLAT)/bl1/arm_dev_protpk.o: $(ARM_PROTPK_HASH)
+$(BUILD_PLAT)/bl2/arm_dev_protpk.o: $(ARM_PROTPK_HASH)
+endif
+
endif
diff --git a/plat/arm/common/arm_common.mk b/plat/arm/common/arm_common.mk
index 17058d1a5..3521780a5 100644
--- a/plat/arm/common/arm_common.mk
+++ b/plat/arm/common/arm_common.mk
@@ -294,6 +294,8 @@ ifneq (${TRUSTED_BOARD_BOOT},0)
# Include the selected chain of trust sources.
ifeq (${COT},tbbr)
AUTH_SOURCES += drivers/auth/tbbr/tbbr_cot.c
+ else ifeq (${COT},dualroot)
+ AUTH_SOURCES += drivers/auth/dualroot/cot.c
else
$(error Unknown chain of trust ${COT})
endif