| # SPDX-FileCopyrightText: <text>Copyright 2022, 2025 Arm Limited and/or |
| # its affiliates <open-source-office@arm.com></text> |
| # SPDX-License-Identifier: Apache-2.0 |
| |
| description: | |
| The Arm Ethos-U is a micro NPU that enables neural networks to be hardware |
| accelerated on embedded devices. The Ethos-U NPU driver is provided as a |
| Zephyr module that is hooked up into the Tensorflow Lite Micro framework |
| as a 'TFLM custom operation'. |
| |
| This device tree entry defines board specific properties like the register |
| map address and interrupt line, and is therefore expected to be included |
| into the device specific device tree file. |
| |
| compatible: "arm,ethos-u" |
| |
| include: base.yaml |
| |
| properties: |
| reg: |
| required: true |
| |
| interrupts: |
| required: true |
| |
| secure-enable: |
| type: boolean |
| description: Configure Ethos-U NPU to operate in secure- or non-secure mode |
| |
| privilege-enable: |
| type: boolean |
| description: Configure Ethos-U NPU to operate in privileged- or non-privileged mode |
| |
| fast-memory-region: |
| type: phandle |
| description: | |
| Phandle to a node compatible with "zephyr,memory-region" that represents |
| a dedicated fast SRAM region used by the Ethos-U driver as scratch |
| memory (spill cache). This is used by Ethos-U65/Ethos-U85 when the model has |
| been compiled in Dedicated SRAM mode with Vela. |
| If omitted, the driver passes NULL/0 to ethosu_init() and no fast |
| scratch area is used. |
