warp7: Enable Trusted Board Boot for WaRP7
This patch enables Trusted Board Boot for warp7. A subsequent patch
contains build/run instructions.
Signed-off-by: Bryan O'Donoghue <bryan.odonoghue@linaro.org>
Signed-off-by: Jun Nie <jun.nie@linaro.org>
diff --git a/plat/imx/imx7/warp7/platform.mk b/plat/imx/imx7/warp7/platform.mk
index a771865..f7bd4ae 100644
--- a/plat/imx/imx7/warp7/platform.mk
+++ b/plat/imx/imx7/warp7/platform.mk
@@ -62,6 +62,43 @@
plat/imx/imx7/warp7/warp7_image_load.c \
${XLAT_TABLES_LIB_SRCS}
+ifneq (${TRUSTED_BOARD_BOOT},0)
+
+include drivers/auth/mbedtls/mbedtls_crypto.mk
+include drivers/auth/mbedtls/mbedtls_x509.mk
+
+AUTH_SOURCES := drivers/auth/auth_mod.c \
+ drivers/auth/crypto_mod.c \
+ drivers/auth/img_parser_mod.c \
+ drivers/auth/tbbr/tbbr_cot.c
+
+BL2_SOURCES += ${AUTH_SOURCES} \
+ plat/common/tbbr/plat_tbbr.c \
+ plat/imx/imx7/warp7/warp7_trusted_boot.c \
+ plat/imx/imx7/warp7/warp7_rotpk.S
+
+ROT_KEY = $(BUILD_PLAT)/rot_key.pem
+ROTPK_HASH = $(BUILD_PLAT)/rotpk_sha256.bin
+
+$(eval $(call add_define_val,ROTPK_HASH,'"$(ROTPK_HASH)"'))
+$(eval $(call MAKE_LIB_DIRS))
+
+$(BUILD_PLAT)/bl2/warp7_rotpk.o: $(ROTPK_HASH)
+
+certificates: $(ROT_KEY)
+
+$(ROT_KEY): | $(BUILD_PLAT)
+ @echo " OPENSSL $@"
+ @if [ ! -f $(ROT_KEY) ]; then \
+ openssl genrsa 2048 > $@ 2>/dev/null; \
+ fi
+
+$(ROTPK_HASH): $(ROT_KEY)
+ @echo " OPENSSL $@"
+ $(Q)openssl rsa -in $< -pubout -outform DER 2>/dev/null |\
+ openssl dgst -sha256 -binary > $@ 2>/dev/null
+endif
+
# Build config flags
# ------------------
@@ -86,6 +123,21 @@
PLAT_WARP7_UART :=1
$(eval $(call add_define,PLAT_WARP7_UART))
+# Add the build options to pack BLx images and kernel device tree
+# in the FIP if the platform requires.
+ifneq ($(BL2),)
+$(eval $(call TOOL_ADD_PAYLOAD,${BUILD_PLAT}/tb_fw.crt,--tb-fw-cert))
+endif
+ifneq ($(BL32_EXTRA1),)
+$(eval $(call TOOL_ADD_IMG,BL32_EXTRA1,--tos-fw-extra1))
+endif
+ifneq ($(BL32_EXTRA2),)
+$(eval $(call TOOL_ADD_IMG,BL32_EXTRA2,--tos-fw-extra2))
+endif
+ifneq ($(HW_CONFIG),)
+$(eval $(call TOOL_ADD_IMG,HW_CONFIG,--hw-config))
+endif
+
# Verify build config
# -------------------