Add Ethos-u core driver

Change-Id: I541862775031c21e6483f26446a29dfe452382ab
diff --git a/CMakeLists.txt b/CMakeLists.txt
new file mode 100644
index 0000000..d53662d
--- /dev/null
+++ b/CMakeLists.txt
@@ -0,0 +1,105 @@
+#
+# Copyright (c) 2019-2020 Arm Limited. All rights reserved.
+#
+# SPDX-License-Identifier: Apache-2.0
+#
+# Licensed under the Apache License, Version 2.0 (the License); you may
+# not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+# www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an AS IS BASIS, WITHOUT
+# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+
+cmake_minimum_required(VERSION 3.15.6)
+
+project(ethosu_core_driver VERSION 0.0.1)
+
+#
+# Build options
+#
+
+option(DRIVER_BUILD_PMU "Driver supports NPU-PMU" ON)
+option(LOG_SUPPORT "Enable logging." ON)
+
+set(CMSIS_PATH "${CMAKE_CURRENT_SOURCE_DIR}/../library/cmsis" CACHE PATH "Path to CMSIS.")
+set(TIMING_ADAPTER_PATH "${CMAKE_CURRENT_SOURCE_DIR}/timing-adapter" CACHE STRING "Path to timing adapter.")
+
+if(EXISTS "${TIMING_ADAPTER_PATH}")
+    option(DRIVER_BUILD_TIMING_ADAPTER "Enable timing-adapter" ON)
+else()
+    option(DRIVER_BUILD_TIMING_ADAPTER "Enable timing-adapter" OFF)
+endif()
+
+#
+# Global settings
+#
+
+if(CMAKE_SYSTEM_PROCESSOR STREQUAL "cortex-m0")
+    add_compile_definitions(CPU_CORTEX_M0)
+elseif(CMAKE_SYSTEM_PROCESSOR STREQUAL "cortex-m3")
+    add_compile_definitions(CPU_CORTEX_M3)
+elseif(CMAKE_SYSTEM_PROCESSOR STREQUAL "cortex-m33")
+    add_compile_definitions(CPU_CORTEX_M33)
+    add_compile_definitions(__DSP_PRESENT=1)
+elseif(CMAKE_SYSTEM_PROCESSOR STREQUAL "cortex-m4")
+    add_compile_definitions(CPU_CORTEX_M4)
+elseif(CMAKE_SYSTEM_PROCESSOR STREQUAL "cortex-m55")
+    add_compile_definitions(CPU_CORTEX_M55)
+    add_compile_definitions(__DSP_PRESENT=1)
+    add_compile_definitions(__FPU_PRESENT=1)
+elseif(CMAKE_SYSTEM_PROCESSOR STREQUAL "cortex-m7")
+    add_compile_definitions(CPU_CORTEX_M7)
+else()
+    message(FATAL_ERROR "Unsupported compiler ${CMAKE_SYSTEM_PROCESSOR}.")
+endif()
+
+# Enable logging support
+if (LOG_SUPPORT)
+    add_compile_definitions(LOG_ENABLED)
+endif()
+
+# Make include directories available for current- and sub projects
+include_directories(include src)
+include_directories(${CMSIS_PATH}/CMSIS/Core/Include)
+
+#
+# Build libraries
+#
+
+# Build driver library
+add_library(ethosu_core_driver STATIC)
+target_include_directories(ethosu_core_driver
+                           PUBLIC include)
+target_sources(ethosu_core_driver PRIVATE src/ethosu_driver.c src/ethosu_device.c)
+
+# Build timing adapter
+if (DRIVER_BUILD_TIMING_ADAPTER)
+    add_subdirectory(timing-adapter)
+    target_link_libraries(ethosu_core_driver PUBLIC timing-adapter)
+endif()
+
+# Build PMU
+if (DRIVER_BUILD_PMU)
+    add_subdirectory(ethosu_pmu)
+    target_link_libraries(ethosu_core_driver PUBLIC ethosu_core_driver_pmu)
+endif()
+
+#
+# Print build status
+#
+
+message(STATUS "*******************************************************")
+message(STATUS "PROJECT_NAME                           : ${PROJECT_NAME}")
+message(STATUS "CMAKE_SYSTEM_PROCESSOR                 : ${CMAKE_SYSTEM_PROCESSOR}")
+message(STATUS "DRIVER_BUILD_PMU                       : ${DRIVER_BUILD_PMU}")
+message(STATUS "DRIVER_BUILD_TIMING_ADAPTER            : ${DRIVER_BUILD_TIMING_ADAPTER}")
+message(STATUS "LOG_SUPPORT                            : ${LOG_SUPPORT}")
+message(STATUS "CMSIS_PATH                             : ${CMSIS_PATH}")
+message(STATUS "TIMING_ADAPTER_PATH                    : ${TIMING_ADAPTER_PATH}")
+message(STATUS "*******************************************************")