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Subject: Re: [PATCH 2/2] arm64: dts: meson: add initial device-tree for Minix
 NEO U9-H
To:     Christian Hewitt <christianshewitt@gmail.com>,
        Rob Herring <robh+dt@kernel.org>,
        Mark Rutland <mark.rutland@arm.com>,
        Kevin Hilman <khilman@baylibre.com>,
        devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org,
        linux-amlogic@lists.infradead.org, linux-kernel@vger.kernel.org
References: <20210201210508.1528-1-christianshewitt@gmail.com>
 <20210201210508.1528-2-christianshewitt@gmail.com>
From:   Neil Armstrong <narmstrong@baylibre.com>
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Organization: Baylibre
Message-ID: <35942a39-517a-2437-8f53-f885d7f6d274@baylibre.com>
Date:   Wed, 10 Feb 2021 09:11:32 +0100
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In-Reply-To: <20210201210508.1528-2-christianshewitt@gmail.com>
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On 01/02/2021 22:05, Christian Hewitt wrote:
> Minix NEO U9-H is based on the Amlogic Q200 reference board with an
> S912-H chip and the following specs:
> 
> - 2GB DDR3 RAM
> - 16GB eMMC
> - 10/100/1000 Base-T Ethernet
> - AP6356S Wireless (802.11 a/b/g/n/ac, BT 4.1)
> - RTC chip
> - HDMI 2.1 video
> - S/PDIF optical output
> - ES8323 audio codec
> - Analogue headphone output
> - 3x USB 2.0 ports (1x OTG)
> - IR receiver
> - 1x Power LED (white)
> - 1x Power button (rear)
> - 1x Update/Reset button (underside)
> - 1x micro SD card slot
> 
> Tested-by: Wes Bradley <komplex@live.ie>
> Signed-off-by: Christian Hewitt <christianshewitt@gmail.com>
> ---
>  arch/arm64/boot/dts/amlogic/Makefile          |   1 +
>  .../dts/amlogic/meson-gxm-minix-neo-u9h.dts   | 120 ++++++++++++++++++
>  2 files changed, 121 insertions(+)
>  create mode 100644 arch/arm64/boot/dts/amlogic/meson-gxm-minix-neo-u9h.dts
> 
> diff --git a/arch/arm64/boot/dts/amlogic/Makefile b/arch/arm64/boot/dts/amlogic/Makefile
> index dce41cd3f347..46e67de3d6d2 100644
> --- a/arch/arm64/boot/dts/amlogic/Makefile
> +++ b/arch/arm64/boot/dts/amlogic/Makefile
> @@ -38,6 +38,7 @@ dtb-$(CONFIG_ARCH_MESON) += meson-gxl-s905w-p281.dtb
>  dtb-$(CONFIG_ARCH_MESON) += meson-gxl-s905w-tx3-mini.dtb
>  dtb-$(CONFIG_ARCH_MESON) += meson-gxl-s905d-libretech-pc.dtb
>  dtb-$(CONFIG_ARCH_MESON) += meson-gxm-khadas-vim2.dtb
> +dtb-$(CONFIG_ARCH_MESON) += meson-gxm-minix-neo-u9h.dtb
>  dtb-$(CONFIG_ARCH_MESON) += meson-gxm-nexbox-a1.dtb
>  dtb-$(CONFIG_ARCH_MESON) += meson-gxm-q200.dtb
>  dtb-$(CONFIG_ARCH_MESON) += meson-gxm-q201.dtb
> diff --git a/arch/arm64/boot/dts/amlogic/meson-gxm-minix-neo-u9h.dts b/arch/arm64/boot/dts/amlogic/meson-gxm-minix-neo-u9h.dts
> new file mode 100644
> index 000000000000..a414cd39c2b1
> --- /dev/null
> +++ b/arch/arm64/boot/dts/amlogic/meson-gxm-minix-neo-u9h.dts
> @@ -0,0 +1,120 @@
> +// SPDX-License-Identifier: (GPL-2.0+ OR MIT)
> +/*
> + * Copyright (c) Christian Hewitt <christianshewitt@gmail.com>
> + */
> +
> +/dts-v1/;
> +
> +#include "meson-gxm.dtsi"
> +#include "meson-gx-p23x-q20x.dtsi"
> +#include <dt-bindings/input/input.h>
> +#include <dt-bindings/leds/common.h>
> +
> +/ {
> +	compatible = "minix,neo-u9h", "amlogic,s912", "amlogic,meson-gxm";
> +	model = "Minix Neo U9-H";
> +
> +	leds {
> +		compatible = "gpio-leds";
> +
> +		white {
> +			color = <LED_COLOR_ID_WHITE>;
> +			function = LED_FUNCTION_POWER;
> +			gpios = <&gpio_ao GPIOAO_9 GPIO_ACTIVE_HIGH>;
> +			default-state = "on";
> +			panic-indicator;
> +		};
> +	};
> +
> +	adc-keys {
> +		compatible = "adc-keys";
> +		io-channels = <&saradc 0>;
> +		io-channel-names = "buttons";
> +		keyup-threshold-microvolt = <1710000>;
> +
> +		button-function {
> +			label = "update";
> +			linux,code = <KEY_VENDOR>;
> +			press-threshold-microvolt = <10000>;
> +		};
> +	};
> +
> +	gpio-keys-polled {
> +		compatible = "gpio-keys-polled";
> +		#address-cells = <1>;
> +		#size-cells = <0>;
> +		poll-interval = <100>;
> +
> +		button@0 {
> +			label = "power";
> +			linux,code = <KEY_POWER>;
> +			gpios = <&gpio_ao GPIOAO_2 GPIO_ACTIVE_LOW>;
> +		};
> +	};
> +};
> +
> +&ethmac {
> +	pinctrl-0 = <&eth_pins>;
> +	pinctrl-names = "default";
> +	phy-handle = <&external_phy>;
> +	amlogic,tx-delay-ns = <2>;
> +	phy-mode = "rgmii";
> +};
> +
> +&external_mdio {
> +	external_phy: ethernet-phy@0 {
> +		/* Realtek RTL8211F (0x001cc916) */
> +		reg = <0>;
> +		max-speed = <1000>;
> +
> +		reset-assert-us = <10000>;
> +		reset-deassert-us = <80000>;
> +		reset-gpios = <&gpio GPIOZ_14 GPIO_ACTIVE_LOW>;
> +
> +		interrupt-parent = <&gpio_intc>;
> +		/* MAC_INTR on GPIOZ_15 */
> +		interrupts = <25 IRQ_TYPE_LEVEL_LOW>;
> +	};
> +};
> +
> +&ir {
> +	linux,rc-map-name = "rc-minix-neo";
> +};
> +
> +&i2c_B {
> +	status = "okay";
> +	pinctrl-0 = <&i2c_b_pins>;
> +	pinctrl-names = "default";
> +
> +	rtc: rtc@51 {
> +		status = "okay";
> +		compatible = "haoyu,hym8563";
> +		reg = <0x51>;
> +		#clock-cells = <0>;
> +		clock-frequency = <32768>;
> +		clock-output-names = "xin32k";
> +		wakeup-source;
> +	};
> +};
> +
> +&sd_emmc_a {
> +	brcmf: wifi@1 {
> +		reg = <1>;
> +		compatible = "brcm,bcm4329-fmac";
> +	};
> +};
> +
> +&uart_A {
> +	status = "okay";
> +	pinctrl-0 = <&uart_a_pins>, <&uart_a_cts_rts_pins>;
> +	pinctrl-names = "default";
> +	uart-has-rtscts;
> +
> +	bluetooth {
> +		compatible = "brcm,bcm43438-bt";
> +		shutdown-gpios = <&gpio GPIOX_17 GPIO_ACTIVE_HIGH>;
> +		max-speed = <2000000>;
> +		clocks = <&wifi32k>;
> +		clock-names = "lpo";
> +	};
> +};
> 

Reviewed-by: Neil Armstrong <narmstrong@baylibre.com>