linux-kernel - [PATCH v3 0/2] Add FriendlyElec NanoPi M5 support for Rockchip RK3576

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Message-Id: <20250621124900.214098-1-inindev@gmail.com>
Date: Sat, 21 Jun 2025 08:48:58 -0400
From: John Clark <inindev@...il.com>
To: heiko@...ech.de
Cc: robh@...nel.org,
	krzk+dt@...nel.org,
	conor+dt@...nel.org,
	linux-arm-kernel@...ts.infradead.org,
	linux-rockchip@...ts.infradead.org,
	devicetree@...r.kernel.org,
	linux-kernel@...r.kernel.org,
	John Clark <inindev@...il.com>
Subject: [PATCH v3 0/2] Add FriendlyElec NanoPi M5 support for Rockchip RK3576

This series adds device tree support for the FriendlyElec NanoPi M5 board,
powered by the Rockchip RK3576 SoC (4x Cortex-A72, 4x Cortex-A53, Mali-G52
MC3 GPU, 6 TOPS NPU). The patches enable basic booting and connectivity,
including dual 1Gbps Ethernet, USB 3.2, microSD, M.2 PCIe NVMe, and HDMI.

Changes in v3:
- Improved (even more) fspi1m1_pins comment for clarity, specifying
  gpio1_d5, gpio1_c4-c7 (clk, d0-d4) for SPI NOR flash.
- Removed redundant #address-cells and #size-cells from sfc1 node, as they
  are inherited from rk3576.dtsi.

Changes in v2:
- Fixed DT schema warnings (Rob Herring):
  - Renamed spi-nor@0 to flash@0
  - Renamed pmic@23 pinctrl nodes to end with -pins
  - Renamed hym8563@51 to rtc@51 and removed clock-frequency
  - Renamed button@1 to button-user
- Addressed Heiko Stuebner's feedback:
  - Sorted non-addressed nodes alphabetically
  - Added blank lines in regulator nodes
  - Improved fspi1m1_pins comment to clarify SPI NOR flash pinmux
  - Moved status property in saradc to last

Patch 1: Updates DT bindings in rockchip.yaml
Patch 2: Adds NanoPi M5 device tree and Makefile entry

No MAINTAINERS update needed, as the new file is covered by the existing
ARM/Rockchip SoC entry.

Tested on NanoPi M5 with successful boot and feature validation.

Signed-off-by: John Clark <inindev@...il.com>
---
John Clark (2):
  dt-bindings: arm: rockchip: add FriendlyElec NanoPi M5 board
  arm64: dts: rockchip: Add FriendlyElec NanoPi M5 support

 .../devicetree/bindings/arm/rockchip.yaml     |   6 +
 arch/arm64/boot/dts/rockchip/Makefile         |   1 +
 .../boot/dts/rockchip/rk3576-nanopi-m5.dts    | 999 ++++++++++++++++++
 3 files changed, 1006 insertions(+)
 create mode 100644 arch/arm64/boot/dts/rockchip/rk3576-nanopi-m5.dts

-- 
2.39.5