[PATCH 2/2] arm64: dts: rockchip: Add NanoPC T6

[Krzysztof Kozlowski]

On 02/08/2023 07:14, Thomas McKahan wrote:
> Add the NanoPC T6, a single board computer from FriendlyElec based on
> the RK3588.
> 
> Initial device tree supports debug UART, SD, eMMC, PCIe 3, PMIC,
> and 40 pin GPIO assignments.
> 
> Signed-off-by: Thomas McKahan <tmckahan at singleboardsolutions.com>
> ---
>  arch/arm64/boot/dts/rockchip/Makefile         |   1 +
>  .../boot/dts/rockchip/rk3588-nanopc-t6.dts    | 845 ++++++++++++++++++
>  2 files changed, 846 insertions(+)
>  create mode 100644 arch/arm64/boot/dts/rockchip/rk3588-nanopc-t6.dts
> 
> diff --git a/arch/arm64/boot/dts/rockchip/Makefile b/arch/arm64/boot/dts/rockchip/Makefile
> index 1ebbb3e9c2f9..e7728007fd1b 100644
> --- a/arch/arm64/boot/dts/rockchip/Makefile
> +++ b/arch/arm64/boot/dts/rockchip/Makefile
> @@ -100,6 +100,7 @@ dtb-$(CONFIG_ARCH_ROCKCHIP) += rk3568-rock-3a.dtb
>  dtb-$(CONFIG_ARCH_ROCKCHIP) += rk3588-edgeble-neu6a-io.dtb
>  dtb-$(CONFIG_ARCH_ROCKCHIP) += rk3588-edgeble-neu6b-io.dtb
>  dtb-$(CONFIG_ARCH_ROCKCHIP) += rk3588-evb1-v10.dtb
> +dtb-$(CONFIG_ARCH_ROCKCHIP) += rk3588-nanopc-t6.dtb
>  dtb-$(CONFIG_ARCH_ROCKCHIP) += rk3588-rock-5b.dtb
>  dtb-$(CONFIG_ARCH_ROCKCHIP) += rk3588s-indiedroid-nova.dtb
>  dtb-$(CONFIG_ARCH_ROCKCHIP) += rk3588s-khadas-edge2.dtb
> diff --git a/arch/arm64/boot/dts/rockchip/rk3588-nanopc-t6.dts b/arch/arm64/boot/dts/rockchip/rk3588-nanopc-t6.dts
> new file mode 100644
> index 000000000000..2362da2c53d9
> --- /dev/null
> +++ b/arch/arm64/boot/dts/rockchip/rk3588-nanopc-t6.dts
> @@ -0,0 +1,845 @@
> +// SPDX-License-Identifier: (GPL-2.0+ OR MIT)
> +/*
> + * Copyright (c) 2021 Rockchip Electronics Co., Ltd.
> + * Copyright (c) 2023 Thomas McKahan
> + *
> + */
> +
> +/dts-v1/;
> +
> +#include <dt-bindings/gpio/gpio.h>
> +#include <dt-bindings/pinctrl/rockchip.h>
> +#include <dt-bindings/usb/pd.h>
> +#include "rk3588.dtsi"
> +
> +/ {
> +	model = "FriendlyElec NanoPC-T6";
> +	compatible = "friendlyarm,nanopc-t6", "rockchip,rk3588";
> +
> +	aliases {
> +		mmc0 = &sdhci;
> +		mmc1 = &sdmmc;
> +		serial2 = &uart2;
> +	};
> +
> +	chosen {
> +		stdout-path = "serial2:1500000n8";
> +	};
> +
> +	sound {
> +		status = "okay";

Was it disabled anywhere? Anyway, compatible is always the first property.


> +		compatible = "simple-audio-card";
> +		pinctrl-names = "default";
> +		pinctrl-0 = <&hp_det>;
> +
> +		simple-audio-card,name = "realtek,rt5616-codec";
> +		simple-audio-card,format = "i2s";
> +		simple-audio-card,mclk-fs = <256>;
> +
> +		simple-audio-card,hp-det-gpio = <&gpio1 RK_PC4 GPIO_ACTIVE_LOW>;
> +		simple-audio-card,hp-pin-name = "Headphones";
> +
> +		simple-audio-card,widgets =
> +			"Headphone", "Headphones",
> +			"Microphone", "Microphone Jack";
> +		simple-audio-card,routing =
> +			"Headphones", "HPOL",
> +			"Headphones", "HPOR",
> +			"MIC1", "Microphone Jack",
> +			"Microphone Jack", "micbias1";
> +
> +		simple-audio-card,cpu {
> +			sound-dai = <&i2s0_8ch>;
> +		};
> +		simple-audio-card,codec {
> +			sound-dai = <&rt5616>;
> +		};
> +	};
> +
> +	leds {
> +		compatible = "gpio-leds";
> +
> +		sys_led: led-0 {
> +			gpios = <&gpio2 RK_PB7 GPIO_ACTIVE_HIGH>;
> +			label = "system-led";
> +			pinctrl-names = "default";
> +			pinctrl-0 = <&sys_led_pin>;
> +			linux,default-trigger = "heartbeat";
> +		};
> +
> +		usr_led: led-1 {
> +			gpios = <&gpio2 RK_PC0 GPIO_ACTIVE_HIGH>;
> +			label = "user-led";
> +			pinctrl-names = "default";
> +			pinctrl-0 = <&usr_led_pin>;
> +		};
> +	};
> +
> +	vcc12v_dcin: vcc12v-dcin-regulator {
> +		compatible = "regulator-fixed";
> +		regulator-name = "vcc12v_dcin";
> +		regulator-always-on;
> +		regulator-boot-on;
> +		regulator-min-microvolt = <12000000>;
> +		regulator-max-microvolt = <12000000>;
> +	};
> +
> +	/* vcc5v0_sys powers peripherals */
> +	vcc5v0_sys: vcc5v0-sys-regulator {
> +		compatible = "regulator-fixed";
> +		regulator-name = "vcc5v0_sys";
> +		regulator-always-on;
> +		regulator-boot-on;
> +		regulator-min-microvolt = <5000000>;
> +		regulator-max-microvolt = <5000000>;
> +		vin-supply = <&vcc12v_dcin>;
> +	};
> +
> +	/* vcc4v0_sys powers the RK806, RK860's */
> +	vcc4v0_sys: vcc4v0-sys-regulator {
> +		compatible = "regulator-fixed";
> +		regulator-name = "vcc4v0_sys";
> +		regulator-always-on;
> +		regulator-boot-on;
> +		regulator-min-microvolt = <4000000>;
> +		regulator-max-microvolt = <4000000>;
> +		vin-supply = <&vcc12v_dcin>;
> +	};
> +
> +	vcc_1v1_nldo_s3: vcc-1v1-nldo-s3-regulator {
> +		compatible = "regulator-fixed";
> +		regulator-name = "vcc-1v1-nldo-s3";
> +		regulator-always-on;
> +		regulator-boot-on;
> +		regulator-min-microvolt = <1100000>;
> +		regulator-max-microvolt = <1100000>;
> +		vin-supply = <&vcc4v0_sys>;
> +	};
> +
> +	vbus5v0_typec: vbus5v0-typec {

What happened with -regulator suffix?

> +		compatible = "regulator-fixed";
> +		enable-active-high;
> +		gpio = <&gpio1 RK_PD2 GPIO_ACTIVE_HIGH>;
> +		pinctrl-names = "default";
> +		pinctrl-0 = <&typec5v_pwren>;
> +		regulator-name = "vbus5v0_typec";
> +		regulator-min-microvolt = <5000000>;
> +		regulator-max-microvolt = <5000000>;
> +		vin-supply = <&vcc5v0_sys>;
> +	};
> +
> +	vcc3v3_pcie30: vcc3v3-pcie30 {

What happened with -regulator suffix?


...

> +		};
> +

Drop stray blank line.

> +	};
> +
> +	hym8563: hym8563 at 51 {

Node names should be generic. See also an explanation and list of
examples (not exhaustive) in DT specification:
https://devicetree-specification.readthedocs.io/en/latest/chapter2-devicetree-basics.html#generic-names-recommendation


> +		compatible = "haoyu,hym8563";
> +		reg = <0x51>;
> +		#clock-cells = <0>;
> +		clock-output-names = "hym8563";
> +		pinctrl-names = "default";
> +		pinctrl-0 = <&hym8563_int>;
> +		interrupt-parent = <&gpio0>;
> +		interrupts = <RK_PB0 IRQ_TYPE_LEVEL_LOW>;
> +		wakeup-source;
> +	};
> +
> +};
> +
> +&i2c7 {
> +	clock-frequency = <200000>;
> +	status = "okay";
> +
> +	rt5616: codec at 1b {
> +		compatible = "realtek,rt5616";
> +		reg = <0x1b>;
> +		clocks = <&cru I2S0_8CH_MCLKOUT>;
> +		clock-names = "mclk";
> +		#sound-dai-cells = <0>;
> +		assigned-clocks = <&cru I2S0_8CH_MCLKOUT>;
> +		assigned-clock-rates = <12288000>;
> +
> +		port {
> +			rt5616_p0_0: endpoint {
> +				remote-endpoint = <&i2s0_8ch_p0_0>;
> +			};
> +		};
> +	};
> +
> +	/* connected with MIPI-CSI1 */
> +};
> +
> +&i2c8 {
> +	pinctrl-0 = <&i2c8m2_xfer>;
> +};
> +
> +&i2s0_8ch {
> +	pinctrl-names = "default";
> +	pinctrl-0 = <&i2s0_lrck
> +				 &i2s0_mclk
> +				 &i2s0_sclk
> +				 &i2s0_sdi0
> +				 &i2s0_sdo0>;

Odd alignment.

> +	status = "okay";
> +
> +	i2s0_8ch_p0: port {
> +		i2s0_8ch_p0_0: endpoint {
> +			dai-format = "i2s";
> +			mclk-fs = <256>;
> +			remote-endpoint = <&rt5616_p0_0>;
> +		};
> +	};
> +};
> +
> +&pcie30phy {
> +	status = "okay";
> +};
> +

...

> +&spi2 {
> +	status = "okay";
> +	assigned-clocks = <&cru CLK_SPI2>;
> +	assigned-clock-rates = <200000000>;
> +	pinctrl-names = "default";
> +	pinctrl-0 = <&spi2m2_cs0 &spi2m2_pins>;
> +	num-cs = <1>;
> +
> +	pmic at 0 {
> +		compatible = "rockchip,rk806";
> +		spi-max-frequency = <1000000>;
> +		reg = <0x0>;
> +
> +		interrupt-parent = <&gpio0>;
> +		interrupts = <7 IRQ_TYPE_LEVEL_LOW>;
> +
> +		pinctrl-names = "default";
> +		pinctrl-0 = <&pmic_pins>, <&rk806_dvs1_null>,
> +			    <&rk806_dvs2_null>, <&rk806_dvs3_null>;
> +
> +		vcc1-supply = <&vcc4v0_sys>;
> +		vcc2-supply = <&vcc4v0_sys>;
> +		vcc3-supply = <&vcc4v0_sys>;
> +		vcc4-supply = <&vcc4v0_sys>;
> +		vcc5-supply = <&vcc4v0_sys>;
> +		vcc6-supply = <&vcc4v0_sys>;
> +		vcc7-supply = <&vcc4v0_sys>;
> +		vcc8-supply = <&vcc4v0_sys>;
> +		vcc9-supply = <&vcc4v0_sys>;
> +		vcc10-supply = <&vcc4v0_sys>;
> +		vcc11-supply = <&vcc_2v0_pldo_s3>;
> +		vcc12-supply = <&vcc4v0_sys>;
> +		vcc13-supply = <&vcc_1v1_nldo_s3>;
> +		vcc14-supply = <&vcc_1v1_nldo_s3>;
> +		vcca-supply = <&vcc4v0_sys>;
> +
> +		gpio-controller;
> +		#gpio-cells = <2>;
> +
> +		rk806_dvs1_null: dvs1-null-pins {
> +			pins = "gpio_pwrctrl2";
> +			function = "pin_fun0";
> +		};
> +
> +		rk806_dvs2_null: dvs2-null-pins {
> +			pins = "gpio_pwrctrl2";
> +			function = "pin_fun0";
> +		};
> +
> +		rk806_dvs3_null: dvs3-null-pins {
> +			pins = "gpio_pwrctrl3";
> +			function = "pin_fun0";
> +		};
> +
> +		regulators {
> +			vdd_gpu_s0: vdd_gpu_mem_s0: dcdc-reg1 {
> +				regulator-boot-on;

Boolean properties are not first, but last. regulator-name is the first
one. This odd style...

> +				regulator-min-microvolt = <550000>;
> +				regulator-max-microvolt = <950000>;
> +				regulator-ramp-delay = <12500>;
> +				regulator-name = "vdd_gpu_s0";
> +				regulator-enable-ramp-delay = <400>;
> +
> +				regulator-state-mem {
> +					regulator-off-in-suspend;
> +				};
> +			};



Best regards,
Krzysztof