Renesas R-Car and RZ SoC platform support
Platform glue code for Renesas's R-Car automotive system-on-chip line and RZ family of microprocessors, covering current parts like R-Car Gen5 (X5H), RZ/V2H, and RZ/T2H. These chips power car infotainment and ADAS systems, industrial controllers, and embedded Linux devices that Renesas continues to ship in 2025 and 2026.
recommendation
It should stay because this is active support code for silicon Renesas is still selling and launching new — RZ/V2H and RZ/T2H are listed as active products, and Renesas announced R-Car Gen5 sampling in December 2025. Patches were still landing in 2025 and 2026 to add functionality for new parts, and there is no replacement since these are SoC-specific drivers for current hardware.
repository signals
sources
- lore.kernel.org
Upstream had active 2026 maintenance for this directory, including refactoring of r9a09g057-sys.c for RZ/V2H support.
- lore.kernel.org
Upstream was still adding new functionality in 2025, with rz-sysc syscon/regmap support posted as a multi-version patch series touching this directory.
- renesas.com
Renesas lists RZ/V2H as an Active product, indicating the family supported here is still sold new.
- renesas.com
Renesas lists RZ/T2H as an Active product; this SoC family appears in this directory's Kconfig as supported hardware.
- renesas.com
Renesas announced Gen 5 R-Car X5H sampling and evaluation boards in December 2025, showing current new-deployment momentum for R-Car-class SoCs covered by this directory.
codex reasoning notes (technical)
Local shell inspection (`rg`, `sed`) showed this is live SoC support code, not a helper-only subtree: Kconfig names current R-Car Gen5, RZ/V2H, RZ/T2H, and related parts. `lore_activity` on drivers/soc/renesas/r9a09g057-sys.c returned 2025-2026 patch traffic with new support and fixes; no removal series was found, and a broad removal-subject probe timed out rather than surfacing evidence. Web search found official Renesas product/news pages marking relevant RZ parts Active and announcing new R-Car Gen5 sampling. No replacement driver exists because these are SoC-specific support drivers for current Renesas silicon.