linux-kernel - Re: [PATCH v2 2/3] arm64: dts: meson-gxl: add support for JetHub H1

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Message-ID: <1jfsulua2e.fsf@starbuckisacylon.baylibre.com>
Date:   Fri, 03 Sep 2021 14:10:51 +0200
From:   Jerome Brunet <jbrunet@...libre.com>
To:     Vyacheslav Bocharov <adeep@...ina.in>,
        Neil Armstrong <narmstrong@...libre.com>,
        Kevin Hilman <khilman@...libre.com>
Cc:     linux-amlogic@...ts.infradead.org,
        linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH v2 2/3] arm64: dts: meson-gxl: add support for JetHub H1


On Fri 03 Sep 2021 at 09:00, Vyacheslav Bocharov <adeep@...ina.in> wrote:

> JetHome Jethub H1 (http://jethome.ru/jethub-h1) is a home automation controller with the following features:
>
> - square plastic case
> - Amlogic S905W (ARM Cortex-A53) quad-core up to 1.5GHz
> - no video out
> - 1GB LPDDR4
> - 8/16GB eMMC flash
> - 2 x USB 2.0
> - 1 x 10/100Mbps ethernet
> - WiFi / Bluetooth RTL8822CS IEEE 802.11a/b/g/n/ac, Bluetooth 5.0.
> - TI CC2538 + CC2592 Zigbee Wireless Module with up to 20dBm output power and Zigbee 3.0 support.
> - MicroSD 2.x/3.x/4.x DS/HS cards.
> - 1 x gpio LED
> - ADC user Button
> - DC source 5V microUSB
>
> Signed-off-by: Vyacheslav Bocharov <adeep@...ina.in>
> ---
>  arch/arm64/boot/dts/amlogic/Makefile          |   1 +
>  .../meson-gxl-s905w-jethome-jethub-j80.dts    | 241 ++++++++++++++++++
>  2 files changed, 242 insertions(+)
>  create mode 100644 arch/arm64/boot/dts/amlogic/meson-gxl-s905w-jethome-jethub-j80.dts
>
> diff --git a/arch/arm64/boot/dts/amlogic/Makefile b/arch/arm64/boot/dts/amlogic/Makefile
> index faa0a79a34f5..2c3ce7c401a5 100644
> --- a/arch/arm64/boot/dts/amlogic/Makefile
> +++ b/arch/arm64/boot/dts/amlogic/Makefile
> @@ -38,6 +38,7 @@ dtb-$(CONFIG_ARCH_MESON) += meson-gxl-s805x-p241.dtb
>  dtb-$(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-$(CONFIG_ARCH_MESON) += meson-gxl-s905w-jethome-jethub-j80.dtb
>  dtb-$(CONFIG_ARCH_MESON) += meson-gxm-khadas-vim2.dtb
>  dtb-$(CONFIG_ARCH_MESON) += meson-gxm-mecool-kiii-pro.dtb
>  dtb-$(CONFIG_ARCH_MESON) += meson-gxm-minix-neo-u9h.dtb
> diff --git a/arch/arm64/boot/dts/amlogic/meson-gxl-s905w-jethome-jethub-j80.dts b/arch/arm64/boot/dts/amlogic/meson-gxl-s905w-jethome-jethub-j80.dts
> new file mode 100644
> index 000000000000..d67a1bc50f7b
> --- /dev/null
> +++ b/arch/arm64/boot/dts/amlogic/meson-gxl-s905w-jethome-jethub-j80.dts
> @@ -0,0 +1,241 @@
> +// SPDX-License-Identifier: (GPL-2.0+ OR MIT)
> +/*
> + * Copyright (c) 2021 Vyacheslav Bocharov <adeep@...ina.in>
> + * Copyright (c) 2020 JetHome
> + * Author: Aleksandr Kazantsev <ak@...p.ru>
> + * Author: Alexey Shevelkin <ash@...p.ru>
> + * Author: Vyacheslav Bocharov <adeep@...ina.in>
> +*/
> +
> +/dts-v1/;
> +
> +#include "meson-gxl.dtsi"
> +
> +/ {
> +	memory@0 {
> +		device_type = "memory";
> +		reg = <0x0 0x0 0x0 0x40000000>;
> +	};
> +
> +	reserved-memory {
> +		linux,cma {
> +			size = <0x0 0x1000000>;
> +		};
> +	};
> +
> +	aliases {
> +		serial0 = &uart_AO;   /* Console */
> +		serial1 = &uart_A;    /* Bluetooth */
> +		serial2 = &uart_AO_B; /* Wireless module 1 */
> +		serial3 = &uart_C;    /* Wireless module 2 */
> +		ethernet0 = &ethmac;
> +	};
> +
> +	chosen {
> +		stdout-path = "serial0:115200n8";
> +	};
> +
> +	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";
> +	};
> +};
> +
> +&efuse {
> +	sn: sn@14 {
> +		reg = <0x14 0x10>;
> +	};

already defined in meson-gx.dtsi

also, what about a new line between the nodes ?

> +	bt_mac: bt_mac@6 {
> +		reg = <0x6 0x6>;
> +	};
> +	wifi_mac: wifi_mac@C {
> +		reg = <0xc 0x6>;
> +	};
> +	serial: serial@32 {
> +		reg = <0x32 0x20>;
> +	};

Isn't serial and sn the same thing ?

> +};
> +
> +&eth_mac {
> +	reg = <0x0 0x6>;
> +};
> +
> +&bid {
> +	reg = <0x12 0x20>;
> +};
> +
> +

Suggest running checkpatch

> +&usb {
> +	status = "okay";
> +	dr_mode = "host";
> +};
> +
> +&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 = <50000000>;
> +
> +	non-removable;
> +	disable-wp;
> +
> +	/* WiFi firmware requires power to be kept while in suspend */
> +	keep-power-in-suspend;
> +
> +	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 = <50000000>;
> +	disable-wp;
> +
> +	cd-gpios = <&gpio CARD_6 GPIO_ACTIVE_LOW>;
> +
> +	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 = <200000000>;
> +	non-removable;
> +	disable-wp;
> +	mmc-ddr-1_8v;
> +	mmc-hs200-1_8v;
> +
> +	mmc-pwrseq = <&emmc_pwrseq>;
> +	vmmc-supply = <&vcc_3v3>;
> +	vqmmc-supply = <&vddio_boot>;
> +};
> +
> +/* Console UART */
> +&uart_AO {
> +	status = "okay";
> +	pinctrl-0 = <&uart_ao_a_pins>;
> +	pinctrl-names = "default";
> +};
> +
> +/* S905W only has access to its internal PHY */
> +&ethmac {
> +	status = "okay";
> +	phy-mode = "rmii";
> +	phy-handle = <&internal_phy>;
> +};
> +
> +&internal_phy {
> +	status = "okay";
> +	pinctrl-0 = <&eth_link_led_pins>, <&eth_act_led_pins>;
> +	pinctrl-names = "default";
> +};
> +
> +&uart_A {
> +	status = "okay";
> +	pinctrl-0 = <&uart_a_pins>, <&uart_a_cts_rts_pins>;
> +	pinctrl-names = "default";
> +	uart-has-rtscts;
> +};
> +
> +&uart_C {
> +	status = "okay";
> +	pinctrl-0 = <&uart_c_pins>;
> +	pinctrl-names = "default";
> +};
> +
> +&uart_AO_B {
> +	status = "okay";
> +	pinctrl-0 = <&uart_ao_b_pins>, <&uart_ao_b_cts_rts_pins>;
> +	pinctrl-names = "default";
> +	uart-has-rtscts;
> +};
> +
> +&i2c_B {
> +	status = "okay";
> +	pinctrl-names = "default";
> +	pinctrl-0 = <&i2c_b_pins>;
> +
> +	pcf8563: pcf8563@51 {
> +		compatible = "nxp,pcf8563";
> +		reg = <0x51>;
> +		status = "okay";
> +	};
> +};