[PATCH] arm64: dts: rockchip: Add FriendlyELEC NanoPC-T6 LTS

[Heiko Stübner]

Hi Marcin,

Am Dienstag, 20. August 2024, 16:42:08 CEST schrieb Marcin Juszkiewicz:
> From: Marcin Juszkiewicz <marcin.juszkiewicz at linaro.org>
> 
> FriendlyELEC introduced new version of NanoPC-T6 SBC.
> 
> MiniPCIe slot got removed and USB 2.0 configuration has changed.
> There are two external accessible ports and two ports on internal
> header.
> 
> There is on-board USB hub which provides:
> - one external connector (bottom one)
> - two internal ports on pin header
> - m.2 E port
> 
> Top USB 2.0 connector comes directly from SoC.
> 
> Signed-off-by: Marcin Juszkiewicz <marcin.juszkiewicz at linaro.org>
> ---
> FriendlyELEC introduced new version of NanoPC-T6 SBC.
> 
> MiniPCIe slot got removed and USB 2.0 configuration has changed.  There
> are two external accessible ports and two ports on internal header.
> 
> There is on-board USB hub which provides:
> - one external connector (bottom one)
> - two internal ports on pin header
> - m.2 E port
> 
> Top USB 2.0 connector comes directly from SoC.
> 
> I am not sure should it be separate source file or should it be
> integrated into rk3588-nanopc-t6.dts one. The differences are small:
> 
> - no vdd_4g_3v3 regulator on LTS
> - no vcc5v0_host_20 regulator on non-LTS
> - LTS one has more complex USB 2.0 setup
> 
> When I merge LTS differences into NanoPC-T6 dts file then my
> NanoPC-T6 LTS board boots fine. But I have no way to test on non-LTS
> one.
> ---
>  arch/arm64/boot/dts/rockchip/Makefile              |  1 +
>  .../boot/dts/rockchip/rk3588-nanopc-t6-lts.dts     | 60 ++++++++++++++++++++++

missing dt-binding addition (in a separate patch) to
Documentation/devicetree/bindings/arm/rockchip.yaml

Please group with the other nanopc-t6, look at the other FriendElec
entries for inspiration.


>  2 files changed, 61 insertions(+)
> 
> diff --git a/arch/arm64/boot/dts/rockchip/Makefile b/arch/arm64/boot/dts/rockchip/Makefile
> index fda1b980eb4b..0f982c741243 100644
> --- a/arch/arm64/boot/dts/rockchip/Makefile
> +++ b/arch/arm64/boot/dts/rockchip/Makefile
> @@ -128,6 +128,7 @@ dtb-$(CONFIG_ARCH_ROCKCHIP) += rk3588-evb1-v10.dtb
>  dtb-$(CONFIG_ARCH_ROCKCHIP) += rk3588-friendlyelec-cm3588-nas.dtb
>  dtb-$(CONFIG_ARCH_ROCKCHIP) += rk3588-jaguar.dtb
>  dtb-$(CONFIG_ARCH_ROCKCHIP) += rk3588-nanopc-t6.dtb
> +dtb-$(CONFIG_ARCH_ROCKCHIP) += rk3588-nanopc-t6-lts.dtb
>  dtb-$(CONFIG_ARCH_ROCKCHIP) += rk3588-ok3588-c.dtb
>  dtb-$(CONFIG_ARCH_ROCKCHIP) += rk3588-orangepi-5-plus.dtb
>  dtb-$(CONFIG_ARCH_ROCKCHIP) += rk3588-quartzpro64.dtb
> diff --git a/arch/arm64/boot/dts/rockchip/rk3588-nanopc-t6-lts.dts b/arch/arm64/boot/dts/rockchip/rk3588-nanopc-t6-lts.dts
> new file mode 100644
> index 000000000000..13f273cfe94f
> --- /dev/null
> +++ b/arch/arm64/boot/dts/rockchip/rk3588-nanopc-t6-lts.dts
> @@ -0,0 +1,60 @@
> +// SPDX-License-Identifier: (GPL-2.0+ OR MIT)
> +/*
> + * Copyright (c) 2021 Rockchip Electronics Co., Ltd.
> + * Copyright (c) 2023 Thomas McKahan
> + * Copyright (c) 2024 Marcin Juszkiewicz
> + *
> + */
> +
> +/dts-v1/;
> +
> +#include "rk3588-nanopc-t6.dts"
> +
> +/ {
> +	model = "FriendlyElec NanoPC-T6 LTS";
> +	compatible = "friendlyarm,nanopc-t6-lts", "rockchip,rk3588";
> +
> +	vcc5v0_host_20: vcc5v0-host-regulator {

most recent naming suggestion is would be regulator-foo.
Also please double check with the schematics what's the actual
name, your phandle doesn't match the regulator-name below.

> +		compatible = "regulator-fixed";
> +		enable-active-high;
> +		gpio = <&gpio1 RK_PA4 GPIO_ACTIVE_HIGH>;
> +		pinctrl-0 = <&usb20_host_pwren>;
> +		pinctrl-names = "default";
> +		regulator-always-on;
> +		regulator-boot-on;
> +		regulator-max-microvolt = <5000000>;
> +		regulator-min-microvolt = <5000000>;
> +		regulator-name = "vcc5v0_host";
> +		vin-supply = <&vcc5v0_sys>;
> +	};
> +};

Cheers
Heiko