• Table of contents
• Overview
  • System Requirements
  • Supported Devices List
  • Supported Boards List
  • HWIP and Driver List
• Samples
• Limitations
• Next Release

---

This page describes the content of R-Car X5H Automotive System-on-Chip (SoC) Zephyr components, restrictions, and points for caution.
This product is an Alpha version of a product under development. Please read the following notes carefully before using this product.

Note: This release version is currently supported on https://docs.zephyrproject.org/4.3.0/. Support for newer versions will be added in future releases.

Supported Host OS

• Ubuntu version 24.04 LTS and later
• Windows 10 or 11

Zephyr Development Environments

For development environment setup, please refer to the Getting started for Zephyr v4.3.0.

For getting the Zephyr source code step, please use the following command instead of the default west initialization command to get wip_rcarsoc repository:

• Replace: west init ~/zephyrproject,
• by: west init -m https://github.com/renesas/zephyr.git --mr wip_rcarsoc

Work In Progress (WIP) branch

Branch name	Information
ZephyrOS:wip_rcarsoc	Includes Zephyr OS, device drivers, board support, and related components.

Release tag: https://github.com/renesas/zephyr/tree/wip_rcarsoc_20260514

Group name	Chip Part Number/SoC Name
R-Car X5H	R8A7800

Board name (Zephyr board name)	Status	Samples and Demo hardware connection
R-Car X5H Ironhide	Available on Renesas wip_rcarsoc branch	R-Car X5H Ironhide Sample and Demo hardware configuration

Renesas HW IP	Mapping to Zephyr	Status	Board
I/O Ports	GPIO	Available on Renesas wip_rcarsoc branch	All available devices
I/O Ports	Pinctrl	Available on Renesas wip_rcarsoc branch	All available devices
SCIF1 (UART)	UART	Available on Renesas wip_rcarsoc branch	All available devices
Generic Timer	System Timer	Available on Renesas wip_rcarsoc branch	All available devices
Clock Controller	Clock Control	Available on Renesas wip_rcarsoc branch	All available devices

Refer to the R-Car X5H Ironhide Sample and Demo hardware configuration section in the sidebar for instructions on executing the samples.

The supported modules currently utilize only the hardware resources (e.g., channels and port pins) available on the R-Car X5H Ironhide board. Full hardware support will be included in the end of July/End release

Release version	Release date	Release Scope
Phase2	July 31 2026	Support modules list: I2S (SSIU, ADG), I2C, Audio-Codec (AK4619), Ethernet (TSNES), PHY, MDIO, Ethernet (RSW3 – Forwarding feature), DMA (Audio-DMAC) and Sub-system Audio. Zephyr version: 4.4.0 Note: The plan is still under discussion and may be adjusted.