linux-kernel - Re: [PATCH v2 3/3] ARM64: dts: meson-gxl: Add support for the Smartlabs SML-5442TW

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Message-ID: <f0439f033d6f23bd489b31ba7c81a8ad6878079d.camel@baylibre.com>
Date:   Thu, 08 Nov 2018 18:03:44 +0100
From:   jbrunet@...libre.com
To:     Christian Hewitt <christianshewitt@...il.com>
Cc:     Rob Herring <robh+dt@...nel.org>,
        Mark Rutland <mark.rutland@....com>,
        Carlo Caione <carlo@...one.org>,
        Kevin Hilman <khilman@...libre.com>,
        Martin Blumenstingl <martin.blumenstingl@...glemail.com>,
        Neil Armstrong <narmstrong@...libre.com>,
        Jianxin Pan <jianxin.pan@...ogic.com>,
        Thierry Reding <treding@...dia.com>,
        David Lechner <david@...hnology.com>,
        Andreas Färber <afaerber@...e.de>,
        Noralf Trønnes <noralf@...nnes.org>,
        Johan Hovold <johan@...nel.org>, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        linux-amlogic@...ts.infradead.org
Subject: Re: [PATCH v2 3/3] ARM64: dts: meson-gxl: Add support for the
 Smartlabs SML-5442TW

On Thu, 2018-11-08 at 21:01 +0400, Christian Hewitt wrote:
> The Smartlabs SML-5442TW is broadly similar to the P231 reference design
> but with the following differences:
> 
> - Yellow and Blue front-panel LEDs are available but disabled
> - Red/Green LED is used to signal off/on status
> - GPIOX_17 is set high to enable the QCA9377 wireless module
> - uart_AO can be accessed after opening the case; soldered pins exist
> 
> Signed-off-by: Christian Hewitt <christianshewitt@...il.com>
> ---
>  arch/arm64/boot/dts/amlogic/Makefile               |   1 +
>  .../boot/dts/amlogic/meson-gxl-s905d-sml5442tw.dts | 316
> +++++++++++++++++++++
>  2 files changed, 317 insertions(+)
>  create mode 100644 arch/arm64/boot/dts/amlogic/meson-gxl-s905d-
> sml5442tw.dts
> 
> diff --git a/arch/arm64/boot/dts/amlogic/Makefile
> b/arch/arm64/boot/dts/amlogic/Makefile
> index c31f29d6..37d7dbd 100644
> --- a/arch/arm64/boot/dts/amlogic/Makefile
> +++ b/arch/arm64/boot/dts/amlogic/Makefile
> @@ -18,6 +18,7 @@ dtb-$(CONFIG_ARCH_MESON) += meson-gxl-s905x-nexbox-
> a95x.dtb
>  dtb-$(CONFIG_ARCH_MESON) += meson-gxl-s905x-p212.dtb
>  dtb-$(CONFIG_ARCH_MESON) += meson-gxl-s905d-p230.dtb
>  dtb-$(CONFIG_ARCH_MESON) += meson-gxl-s905d-p231.dtb
> +dtb-$(CONFIG_ARCH_MESON) += meson-gxl-s905d-sml5442tw.dtb
>  dtb-$(CONFIG_ARCH_MESON) += meson-gxl-s805x-p241.dtb
>  dtb-$(CONFIG_ARCH_MESON) += meson-gxl-s905w-p281.dtb
>  dtb-$(CONFIG_ARCH_MESON) += meson-gxl-s905w-tx3-mini.dtb
> diff --git a/arch/arm64/boot/dts/amlogic/meson-gxl-s905d-sml5442tw.dts
> b/arch/arm64/boot/dts/amlogic/meson-gxl-s905d-sml5442tw.dts
> new file mode 100644
> index 0000000..a081984
> --- /dev/null
> +++ b/arch/arm64/boot/dts/amlogic/meson-gxl-s905d-sml5442tw.dts
> @@ -0,0 +1,316 @@
> +// SPDX-License-Identifier: (GPL-2.0+ OR MIT)
> +/*
> + * Copyright (c) 2016 Endless Computers, Inc.
> + * Author: Carlo Caione <carlo@...lessm.com>
> + * Copyright (c) 2018 BayLibre, SAS
> + * Author: Neil Armstrong <narmstrong@...libre.com>
> + */
> +
> +/dts-v1/;
> +
> +#include "meson-gxl-s905d.dtsi"
> +
> +/ {
> +	compatible = "smartlabs,sml5442tw", "amlogic,s905d", "amlogic,meson-
> gxl";
> +	model = "Smartlabs SML-5442TW";
> +
> +	aliases {
> +		serial0 = &uart_AO;
> +		serial1 = &uart_A;
> +		ethernet0 = &ethmac;
> +	};
> +
> +	chosen {
> +		stdout-path = "serial0:115200n8";
> +	};
> +
> +	memory@0 {
> +		device_type = "memory";
> +		reg = <0x0 0x0 0x0 0x80000000>;
> +	};
> +
> +	leds {
> +		compatible = "gpio-leds";
> +
> +		yellow {
> +			label = "sml5442tw:yellow";
> +			gpios = <&gpio_ao GPIOAO_6 GPIO_ACTIVE_HIGH>;
> +			default-state = "off";
> +		};
> +
> +		blue {
> +			label = "sml5442tw:blue";
> +			gpios = <&gpio GPIODV_28 GPIO_ACTIVE_HIGH>;
> +			default-state = "off";
> +		};
> +
> +		green {
> +			label = "sml5442tw:green";
> +			gpios = <&gpio_ao GPIOAO_9 GPIO_ACTIVE_HIGH>;
> +			default-state = "on";
> +		};
> +
> +		red {
> +			label = "sml5442tw:red";
> +			gpios = <&gpio GPIODV_27 GPIO_ACTIVE_HIGH>;
> +			default-state = "off";
> +		};
> +	};
> +
> +	hdmi_5v: regulator-hdmi-5v {
> +		compatible = "regulator-fixed";
> +
> +		regulator-name = "HDMI_5V";
> +		regulator-min-microvolt = <5000000>;
> +		regulator-max-microvolt = <5000000>;
> +
> +		gpio = <&gpio GPIOH_3 GPIO_ACTIVE_HIGH>;
> +		enable-active-high;
> +		regulator-always-on;
> +	};
> +
> +	vddio_ao18: regulator-vddio_ao18 {
> +		compatible = "regulator-fixed";
> +		regulator-name = "VDDIO_AO18";
> +		regulator-min-microvolt = <1800000>;
> +		regulator-max-microvolt = <1800000>;
> +	};
> +
> +	vddio_boot: regulator-vddio_boot {
> +		compatible = "regulator-fixed";
> +		regulator-name = "VDDIO_BOOT";
> +		regulator-min-microvolt = <1800000>;
> +		regulator-max-microvolt = <1800000>;
> +	};
> +
> +	vddao_3v3: regulator-vddao_3v3 {
> +		compatible = "regulator-fixed";
> +		regulator-name = "VDDAO_3V3";
> +		regulator-min-microvolt = <3300000>;
> +		regulator-max-microvolt = <3300000>;
> +	};
> +
> +	vcc_3v3: regulator-vcc_3v3 {
> +		compatible = "regulator-fixed";
> +		regulator-name = "VCC_3V3";
> +		regulator-min-microvolt = <3300000>;
> +		regulator-max-microvolt = <3300000>;
> +	};
> +
> +	emmc_pwrseq: emmc-pwrseq {
> +		compatible = "mmc-pwrseq-emmc";
> +		reset-gpios = <&gpio BOOT_9 GPIO_ACTIVE_LOW>;
> +	};
> +
> +	wifi32k: wifi32k {
> +		compatible = "pwm-clock";
> +		#clock-cells = <0>;
> +		clock-frequency = <32768>;
> +		pwms = <&pwm_ef 0 30518 0>; /* PWM_E at 32.768KHz */
> +	};
> +
> +	sdio_pwrseq: sdio-pwrseq {
> +		compatible = "mmc-pwrseq-simple";
> +		reset-gpios = <&gpio GPIOX_6 GPIO_ACTIVE_LOW>;
> +		clocks = <&wifi32k>;
> +		clock-names = "ext_clock";
> +	};
> +
> +	cvbs-connector {
> +		compatible = "composite-video-connector";
> +
> +		port {
> +			cvbs_connector_in: endpoint {
> +				remote-endpoint = <&cvbs_vdac_out>;
> +			};
> +		};
> +	};
> +
> +	hdmi-connector {
> +		compatible = "hdmi-connector";
> +		type = "a";
> +
> +		port {
> +			hdmi_connector_in: endpoint {
> +				remote-endpoint = <&hdmi_tx_tmds_out>;
> +			};
> +		};
> +	};
> +
> +	sound {
> +		compatible = "simple-audio-card";
> +		simple-audio-card,name = "meson-gx-audio";
> +
> +		simple-audio-card,dai-link@0 {
> +			/* HDMI Output */
> +			format = "i2s";
> +			mclk-fs = <256>;
> +			bitclock-master =  <&i2s_dai>;
> +			frame-master = <&i2s_dai>;
> +			plat {
> +				sound-dai = <&aiu_i2s_dma>;
> +			};
> +
> +			cpu {
> +				sound-dai = <&i2s_dai>;
> +			};
> +
> +			codec {
> +				sound-dai = <&hdmi_tx>;
> +			};
> +		};
> +	};
> +};

Still not good, sorry !

> +
> +&cec_AO {
> +	status = "okay";
> +	pinctrl-0 = <&ao_cec_pins>;
> +	pinctrl-names = "default";
> +	hdmi-phandle = <&hdmi_tx>;
> +};
> +
> +&cvbs_vdac_port {
> +	cvbs_vdac_out: endpoint {
> +		remote-endpoint = <&cvbs_connector_in>;
> +	};
> +};
> +
> +&ethmac {
> +	status = "okay";
> +	phy-mode = "rmii";
> +	phy-handle = <&internal_phy>;
> +};
> +
> +/* This will enable the bluetooth module */
> +&gpio {
> +	bt-en {
> +		gpio-hog;
> +		gpios = <GPIOX_17 GPIO_ACTIVE_HIGH>;
> +		output-high;
> +		line-name = "bt-en";
> +	};
> +};
> +
> +&hdmi_tx {
> +	status = "okay";
> +	pinctrl-0 = <&hdmi_hpd_pins>, <&hdmi_i2c_pins>;
> +	pinctrl-names = "default";
> +	hdmi-supply = <&hdmi_5v>;
> +};
> +
> +&hdmi_tx_tmds_port {
> +	hdmi_tx_tmds_out: endpoint {
> +		remote-endpoint = <&hdmi_connector_in>;
> +	};
> +};
> +
> +&i2c_A {
> +	status = "okay";
> +	pinctrl-0 = <&i2c_a_pins>;
> +	pinctrl-names = "default";
> +};
> +
> +&internal_phy {
> +	pinctrl-0 = <&eth_link_led_pins>, <&eth_act_led_pins>;
> +	pinctrl-names = "default";
> +};
> +
> +&ir {
> +	status = "okay";
> +	pinctrl-0 = <&remote_input_ao_pins>;
> +	pinctrl-names = "default";
> +	linux,rc-map-name = "rc-o2cz-khamsin";
> +};
> +
> +&pwm_ef {
> +	status = "okay";
> +	pinctrl-0 = <&pwm_e_pins>;
> +	pinctrl-names = "default";
> +	clocks = <&clkc CLKID_FCLK_DIV4>;
> +	clock-names = "clkin0";
> +};
> +
> +&saradc {
> +	status = "okay";
> +	vref-supply = <&vddio_ao18>;
> +};
> +
> +/* Wireless SDIO Module */
> +&sd_emmc_a {
> +	status = "okay";
> +	pinctrl-0 = <&sdio_pins>;
> +	pinctrl-1 = <&sdio_clk_gate_pins>;
> +	pinctrl-names = "default", "clk-gate";
> +	#address-cells = <1>;
> +	#size-cells = <0>;
> +
> +	bus-width = <4>;
> +	cap-sd-highspeed;
> +	max-frequency = <100000000>;
> +
> +	non-removable;
> +	disable-wp;
> +
> +	mmc-pwrseq = <&sdio_pwrseq>;
> +
> +	vmmc-supply = <&vddao_3v3>;
> +	vqmmc-supply = <&vddio_boot>;
> +};
> +
> +/* SD card */
> +&sd_emmc_b {
> +	status = "okay";
> +	pinctrl-0 = <&sdcard_pins>;
> +	pinctrl-1 = <&sdcard_clk_gate_pins>;
> +	pinctrl-names = "default", "clk-gate";
> +
> +	bus-width = <4>;
> +	cap-sd-highspeed;
> +	max-frequency = <100000000>;
> +	disable-wp;
> +
> +	cd-gpios = <&gpio CARD_6 GPIO_ACTIVE_HIGH>;
> +	cd-inverted;
> +
> +	vmmc-supply = <&vddao_3v3>;
> +	vqmmc-supply = <&vddio_boot>;
> +};
> +
> +/* eMMC */
> +&sd_emmc_c {
> +	status = "okay";
> +	pinctrl-0 = <&emmc_pins>, <&emmc_ds_pins>;
> +	pinctrl-1 = <&emmc_clk_gate_pins>;
> +	pinctrl-names = "default", "clk-gate";
> +
> +	bus-width = <8>;
> +	cap-mmc-highspeed;
> +	max-frequency = <100000000>;
> +	non-removable;
> +	disable-wp;
> +	mmc-ddr-1_8v;
> +	mmc-hs200-1_8v;
> +
> +	mmc-pwrseq = <&emmc_pwrseq>;
> +	vmmc-supply = <&vcc_3v3>;
> +	vqmmc-supply = <&vddio_boot>;
> +};
> +
> +/* This is connected to the Bluetooth module: */
> +&uart_A {
> +	status = "okay";
> +	pinctrl-0 = <&uart_a_pins>, <&uart_a_cts_rts_pins>;
> +	pinctrl-names = "default";
> +	uart-has-rtscts;
> +};
> +
> +/* This UART is brought out to the debug header */
> +&uart_AO {
> +	status = "okay";
> +	pinctrl-0 = <&uart_ao_a_pins>;
> +	pinctrl-names = "default";
> +};
> +
> +&usb0 {
> +	status = "okay";
> +};