[PATCH 0/4] arm64: tegra: add initial Tegra238 and E2426-1099+E2423-1099 support

[Chun Ng]

Hi all,

This series adds initial support for the NVIDIA Tegra238 SoC and the
E2426-1099+E2423-1099 engineering reference platform. The series follows
the pattern used for Tegra234 and other recent Tegra SoCs.

It introduces Tegra238 clock and reset binding headers, documents the
E2426-1099+E2423-1099 platform compatibles, relaxes the tegra186-hsp
binding schema for HSP configurations used on Tegra238, and adds the
initial Tegra238 SoC device tree plus board DTS.

The device tree added here is minimal scaffolding only. It is not yet
bootable, and further enablement will follow in later series.

The patch order puts bindings before implementation: clock/reset IDs
first, then platform documentation, then the HSP schema update required
by tegra238.dtsi, and finally the SoC and board device trees.

This series is based on linux-next commit 785f0eb2f85d
("Add linux-next specific files for 20260320").

Tested with:
- make ARCH=arm64 CHECK_DTBS=yes nvidia/tegra238-e2426-1099+e2423-1099.dtb
- make ARCH=arm64 dt_binding_check

Chun Ng (4):
  dt-bindings: tegra: Add Tegra238 clock and reset definitions
  dt-bindings: tegra: Document E2426-1099+E2423-1099 platform
  dt-bindings: mailbox: tegra186-hsp: allow doorbell+shared or
    shared-only
  arm64: tegra: add e2426-1099+e2423-1099 support

 .../devicetree/bindings/arm/tegra.yaml        |   4 +
 .../bindings/mailbox/nvidia,tegra186-hsp.yaml |   7 +
 arch/arm64/boot/dts/nvidia/Makefile           |   2 +
 .../nvidia/tegra238-e2426-1099+e2423-1099.dts |  16 +
 arch/arm64/boot/dts/nvidia/tegra238.dtsi      | 190 ++++++++++++
 include/dt-bindings/clock/nvidia,tegra238.h   | 279 ++++++++++++++++++
 include/dt-bindings/reset/nvidia,tegra238.h   | 125 ++++++++
 7 files changed, 623 insertions(+)
 create mode 100644 arch/arm64/boot/dts/nvidia/tegra238-e2426-1099+e2423-1099.dts
 create mode 100644 arch/arm64/boot/dts/nvidia/tegra238.dtsi
 create mode 100644 include/dt-bindings/clock/nvidia,tegra238.h
 create mode 100644 include/dt-bindings/reset/nvidia,tegra238.h


base-commit: 785f0eb2f85decbe7c1ef9ae922931f0194ffc2e
-- 
2.43.0