modules: tfa: integrate trusted-firmware-a

This commit integrates trusted-firmware-a as a zephyr module

Signed-off-by: Huifeng Zhang <Huifeng.Zhang@arm.com>

modules/trusted-firmware-a/CMakeLists.txt

@@ -0,0 +1,36 @@
+# Copyright (c) 2022 Arm Limited (or its affiliates). All rights reserved.
+# SPDX-License-Identifier: Apache-2.0
+
+if (CONFIG_BUILD_WITH_TFA)
+  set(TFA_BINARY_DIR ${CMAKE_BINARY_DIR}/tfa)
+
+  file(MAKE_DIRECTORY ${TFA_BINARY_DIR})
+
+  include(ExternalProject)
+
+  ExternalProject_Add(
+    tfa
+    SOURCE_DIR ${ZEPHYR_TRUSTED_FIRMWARE_A_MODULE_DIR}
+    BINARY_DIR ${TFA_BINARY_DIR}
+    CONFIGURE_COMMAND ""
+    BUILD_COMMAND ""
+    INSTALL_COMMAND ""
+    BUILD_ALWAYS True
+    USES_TERMINAL_BUILD True
+  )
+
+  if (CONFIG_TFA_MAKE_BUILD_TYPE_DEBUG)
+    set(TFA_BUILD_DEBUG "1")
+  else()
+    set(TFA_BUILD_DEBUG "0")
+  endif()
+
+  set_property(GLOBAL APPEND PROPERTY extra_post_build_commands
+      COMMAND make -C ${ZEPHYR_TRUSTED_FIRMWARE_A_MODULE_DIR}
+            DEBUG=${TFA_BUILD_DEBUG}
+            CROSS_COMPILE=${CROSS_COMPILE}
+            BUILD_BASE=${TFA_BINARY_DIR} PLAT=${TFA_PLAT}
+            BL33=${CMAKE_BINARY_DIR}/zephyr/${KERNEL_BIN_NAME}
+            all fip
+  )
+endif()

modules/trusted-firmware-a/Kconfig

@@ -0,0 +1,22 @@
+# Copyright (c) 2022 Arm Limited (or its affiliates). All rights reserved.
+# SPDX-License-Identifier: Apache-2.0
+
+config ZEPHYR_TRUSTED_FIRMWARE_A_MODULE
+	bool
+
+menuconfig BUILD_WITH_TFA
+	bool "Build with TF-A as the Secure Execution Environment"
+	help
+	  When enabled, this option instructs the Zephyr build process to
+	  additionally generate a TF-A image for the Secure Execution
+	  environment, along with the Zephyr image. The Zephyr image
+	  itself is to be executed in the Non-Secure Processing Environment.
+
+if BUILD_WITH_TFA
+
+config TFA_MAKE_BUILD_TYPE_DEBUG
+	bool "Debug build"
+	help
+	  When enabled, the build type of TF-A would be debug.
+
+endif # BUILD_WITH_TFA