This series cherry-picks the upstream board devicetree, add board configuration and U-Boot devicetree pieces for the board. A wiki page for the board could be found here[1].
I've tested booting from SD-card and network through EFI and PXE. On-board LEDs are driven correctly, and button states could be read. [1]: https://wiki.friendlyelec.com/wiki/index.php/NanoPi_Zero2 Jonas Karlman (1): arm64: dts: rockchip: Add FriendlyElec NanoPi Zero2 Yao Zi (1): board: rockchip: Add FriendlyElec NanoPi Zero2 arch/arm/dts/rk3528-nanopi-zero2-u-boot.dtsi | 11 + arch/arm/mach-rockchip/rk3528/MAINTAINERS | 6 + configs/nanopi-zero2_defconfig | 46 +++ doc/board/rockchip/rockchip.rst | 1 + .../arm64/rockchip/rk3528-nanopi-zero2.dts | 340 ++++++++++++++++++ 5 files changed, 404 insertions(+) create mode 100644 arch/arm/dts/rk3528-nanopi-zero2-u-boot.dtsi create mode 100644 configs/nanopi-zero2_defconfig create mode 100644 dts/upstream/src/arm64/rockchip/rk3528-nanopi-zero2.dts -- 2.50.1

