[PATCH v4 0/2] Add FriendlyElec NanoPi M5 support for Rockchip RK3576

[John Clark]

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 v4:
 - Addressed Diederik's feedback:
   - Renamed pinctrl nodes to align with schematic labels
 - Moved pinctrl-0 and pinctrl-names into button-user sub-node

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 at 0 to flash at 0
  - Renamed pmic at 23 pinctrl nodes to end with -pins
  - Renamed hym8563 at 51 to rtc at 51 and removed clock-frequency
  - Renamed button at 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 at gmail.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

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2.39.5