Rework AXI patch to not depend on CMake

Make ethosu_config.h define default macro's (with default
values) unless the user overrides them.

For CMake users, the macros can be defined on cmd line by
specifying CMAKE_C_FLAGS for cmake, like:

 cmake ... -DCMAKE_C_FLAGS='-DFOO=1 -DBAR=2'

Change-Id: I20fd3e07fdcfb7cba58da7198fd986f8821902bb
3 files changed
tree: 490f2eec76cf9daa02a5c92cf26aa0c7fa23857b
  1. .clang-format
  2. CMakeLists.txt
  3. LICENSE.txt
  4. README.md
  5. include/
  6. src/
README.md

Ethos-u Core Driver

This repository contains a device driver for the Ethos-u NPU.

Building

The source code comes with a CMake based build system. The driver is expeced to be cross compiled for any of the supported Arm Cortex-m CPUs, which will require the user to setup a custom toolchain file.

The user is also required to define CMAKE_SYSTEM_PROCESSOR for the target CPU, for example cortex-m55+nodsp+nofp. This can be done either in the toolchain file or on the command line.

$ mkdir build
$ cd build
$ cmake .. -DCMAKE_TOOLCHAIN_FILE=<toolchain> -DCMAKE_SYSTEM_PROCESSOR=cortex-m<nr><features>
$ make