Re: [PATCH v3 0/6] arm64: dts: rockchip: Add ROCK 2A/2F, Sige1 and NanoPi Zero2

Alex Bee
2025-07-13T19:16:26Z

Hi list, Hi Jonas,

> This series adds dt-bindings and initial device tree for the following
> Rockchip RK3528A boards:
> - Radxa ROCK 2A/2F
> - ArmSoM Sige1
> - FriendlyElec NanoPi Zero2

this only sub-related to this series: Is there any particular reason, why
we call the compatible "rockchip,rk3528" and not "rockchip,rk3528a"? From
what I can see all boards currently supported (and those in this series)
are having the RK3528A version of the SoC. I didn't follow the development
here, but there are differences - I did a quick compare of the datasheets
of those two SoC versions - it looks like RK3528 version has USB3-DRD
controller, while RK3528A has USB3 host-only controller. Also it seems to
have different video codec IPs and the DRAM controller additionally
supports LPDDR4X.
I guess it would be good to discuss this before this series is merged,
because re-naming *.dts files after they have been in a release is somewhat
impossible.

Regards,
Alex
>
> The bt/wifi_reg_on pins are described in the device tree using
> rfkill-gpio nodes.
>
> Changes in v3:
> - Rename led nodes to led-0/led-1
> - Remove pinctrl* props from sdio0
> - Collect a-b tags
>
> Changes in v2:
> - Limit sdmmc max-frequency to 100 MHz on ROCK 2A/2F
> - Drop clock-output-names prop from rtc node on Sige1 and NanoPi Zero2
> - Drop regulator-boot-on from usb 2.0 host regulators on Sige1
> - Add bluetooth and wifi nodes on Sige1
> - Collect t-b tag for NanoPi Zero2
>
> These boards can be booted from emmc or sd-card using the U-Boot 2025.07
> generic-rk3528 target or work-in-progress patches for these boards [1].
>
> For working bluetooth on ArmSoM Sige1 the patch "arm64: dts: rockchip:
> Fix UART DMA support for RK3528" [2] is required.
>
> [1] https://source.denx.de/u-boot/contributors/kwiboo/u-boot/-/commits/rk3528
> [2] https://lore.kernel.org/r/20250709210831.3170458-1-jonas@kwiboo.se
>
> Jonas Karlman (6):
> dt-bindings: arm: rockchip: Add Radxa ROCK 2A/2F
> arm64: dts: rockchip: Add Radxa ROCK 2A/2F
> dt-bindings: arm: rockchip: Add ArmSoM Sige1
> arm64: dts: rockchip: Add ArmSoM Sige1
> dt-bindings: arm: rockchip: Add FriendlyElec NanoPi Zero2
> arm64: dts: rockchip: Add FriendlyElec NanoPi Zero2
>
> .../devicetree/bindings/arm/rockchip.yaml | 17 +
> arch/arm64/boot/dts/rockchip/Makefile | 4 +
> .../boot/dts/rockchip/rk3528-armsom-sige1.dts | 465 ++++++++++++++++++
> .../boot/dts/rockchip/rk3528-nanopi-zero2.dts | 340 +++++++++++++
> .../boot/dts/rockchip/rk3528-rock-2.dtsi | 293 +++++++++++
> .../boot/dts/rockchip/rk3528-rock-2a.dts | 82 +++
> .../boot/dts/rockchip/rk3528-rock-2f.dts | 10 +
> 7 files changed, 1211 insertions(+)
> create mode 100644 arch/arm64/boot/dts/rockchip/rk3528-armsom-sige1.dts
> create mode 100644 arch/arm64/boot/dts/rockchip/rk3528-nanopi-zero2.dts
> create mode 100644 arch/arm64/boot/dts/rockchip/rk3528-rock-2.dtsi
> create mode 100644 arch/arm64/boot/dts/rockchip/rk3528-rock-2a.dts
> create mode 100644 arch/arm64/boot/dts/rockchip/rk3528-rock-2f.dts
>