linux-kernel - Re: [PATCH 2/2] Add support for the Nexbox A1 board based on the Amlogic S912 SoC.

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Message-ID: <20161123225205.re77xff5vcccaltl@rob-hp-laptop>
Date:   Wed, 23 Nov 2016 16:52:05 -0600
From:   Rob Herring <robh@...nel.org>
To:     Neil Armstrong <narmstrong@...libre.com>
Cc:     khilman@...libre.com, carlo@...one.org,
        linux-amlogic@...ts.infradead.org,
        linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
        devicetree@...r.kernel.org
Subject: Re: [PATCH 2/2] Add support for the Nexbox A1 board based on the
 Amlogic S912 SoC.

On Mon, Nov 21, 2016 at 05:29:05PM +0100, Neil Armstrong wrote:
> Signed-off-by: Neil Armstrong <narmstrong@...libre.com>
> ---
>  Documentation/devicetree/bindings/arm/amlogic.txt  |   1 +
>  arch/arm64/boot/dts/amlogic/Makefile               |   1 +
>  .../arm64/boot/dts/amlogic/meson-gxm-nexbox-a1.dts | 169 +++++++++++++++++++++
>  3 files changed, 171 insertions(+)
>  create mode 100644 arch/arm64/boot/dts/amlogic/meson-gxm-nexbox-a1.dts

A few nits below, otherwise:

Acked-by: Rob Herring <robh@...nel.org>

> 
> diff --git a/Documentation/devicetree/bindings/arm/amlogic.txt b/Documentation/devicetree/bindings/arm/amlogic.txt
> index 1144214..6ef7c52 100644
> --- a/Documentation/devicetree/bindings/arm/amlogic.txt
> +++ b/Documentation/devicetree/bindings/arm/amlogic.txt
> @@ -45,3 +45,4 @@ Board compatible values:
>    - "amlogic,p231" (Meson gxl s905d)
>    - "amlogic,q200" (Meson gxm s912)
>    - "amlogic,q201" (Meson gxm s912)
> +  - "nexbox,a1" (Meson gxm s912)
> diff --git a/arch/arm64/boot/dts/amlogic/Makefile b/arch/arm64/boot/dts/amlogic/Makefile
> index 7752a16..2fbb8e3 100644
> --- a/arch/arm64/boot/dts/amlogic/Makefile
> +++ b/arch/arm64/boot/dts/amlogic/Makefile
> @@ -10,6 +10,7 @@ dtb-$(CONFIG_ARCH_MESON) += meson-gxl-s905d-p230.dtb
>  dtb-$(CONFIG_ARCH_MESON) += meson-gxl-s905d-p231.dtb
>  dtb-$(CONFIG_ARCH_MESON) += meson-gxm-s912-q200.dtb
>  dtb-$(CONFIG_ARCH_MESON) += meson-gxm-s912-q201.dtb
> +dtb-$(CONFIG_ARCH_MESON) += meson-gxm-nexbox-a1.dtb
>  
>  always		:= $(dtb-y)
>  subdir-y	:= $(dts-dirs)
> diff --git a/arch/arm64/boot/dts/amlogic/meson-gxm-nexbox-a1.dts b/arch/arm64/boot/dts/amlogic/meson-gxm-nexbox-a1.dts
> new file mode 100644
> index 0000000..d320727
> --- /dev/null
> +++ b/arch/arm64/boot/dts/amlogic/meson-gxm-nexbox-a1.dts
> @@ -0,0 +1,169 @@
> +/*
> + * Copyright (c) 2016 BayLibre, SAS.
> + * Author: Neil Armstrong <narmstrong@...libre.com>
> + *
> + * Copyright (c) 2016 Endless Computers, Inc.
> + * Author: Carlo Caione <carlo@...lessm.com>
> + *
> + * This file is dual-licensed: you can use it either under the terms
> + * of the GPL or the X11 license, at your option. Note that this dual
> + * licensing only applies to this file, and not this project as a
> + * whole.
> + *
> + *  a) This library is free software; you can redistribute it and/or
> + *     modify it under the terms of the GNU General Public License as
> + *     published by the Free Software Foundation; either version 2 of the
> + *     License, or (at your option) any later version.
> + *
> + *     This library is distributed in the hope that it will be useful,
> + *     but WITHOUT ANY WARRANTY; without even the implied warranty of
> + *     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
> + *     GNU General Public License for more details.
> + *
> + * Or, alternatively,
> + *
> + *  b) Permission is hereby granted, free of charge, to any person
> + *     obtaining a copy of this software and associated documentation
> + *     files (the "Software"), to deal in the Software without
> + *     restriction, including without limitation the rights to use,
> + *     copy, modify, merge, publish, distribute, sublicense, and/or
> + *     sell copies of the Software, and to permit persons to whom the
> + *     Software is furnished to do so, subject to the following
> + *     conditions:
> + *
> + *     The above copyright notice and this permission notice shall be
> + *     included in all copies or substantial portions of the Software.
> + *
> + *     THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
> + *     EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
> + *     OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
> + *     NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
> + *     HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
> + *     WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
> + *     FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
> + *     OTHER DEALINGS IN THE SOFTWARE.
> + */
> +
> +/dts-v1/;
> +
> +#include "meson-gxm.dtsi"
> +
> +/ {
> +	compatible = "nexbox,a1", "amlogic,s912", "amlogic,meson-gxm";
> +	model = "NEXBOX A1";
> +
> +	aliases {
> +		serial0 = &uart_AO;
> +	};
> +
> +	chosen {
> +		stdout-path = "serial0:115200n8";
> +	};
> +
> +	memory@0 {
> +		device_type = "memory";
> +		reg = <0x0 0x0 0x0 0x80000000>;
> +	};
> +
> +	vddio_boot: regulator-vddio_boot {

Don't use '_' in node names.

> +		compatible = "regulator-fixed";
> +		regulator-name = "VDDIO_BOOT";
> +		regulator-min-microvolt = <1800000>;
> +		regulator-max-microvolt = <1800000>;
> +	};
> +
> +	vddao_3v3: regulator-vddao_3v3 {

ditto

> +		compatible = "regulator-fixed";
> +		regulator-name = "VDDAO_3V3";
> +		regulator-min-microvolt = <3300000>;
> +		regulator-max-microvolt = <3300000>;
> +	};
> +
> +	vcc_3v3: regulator-vcc_3v3 {

ditto

> +		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>;
> +	};
> +};
> +
> +/* This UART is brought out to the DB9 connector */
> +&uart_AO {
> +	status = "okay";
> +	pinctrl-0 = <&uart_ao_a_pins>;
> +	pinctrl-names = "default";
> +};
> +
> +&ir {
> +	status = "okay";
> +	pinctrl-0 = <&remote_input_ao_pins>;
> +	pinctrl-names = "default";
> +};
> +
> +/* SD card */
> +&sd_emmc_b {
> +	status = "okay";
> +	pinctrl-0 = <&sdcard_pins>;
> +	pinctrl-names = "default";
> +
> +	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>;
> +	pinctrl-names = "default";
> +
> +	bus-width = <8>;
> +	cap-sd-highspeed;
> +	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>;
> +};
> +
> +&ethmac {
> +	status = "okay";
> +
> +	pinctrl-0 = <&eth_pins>;
> +	pinctrl-names = "default";
> +
> +	/* Select external PHY by default */
> +	phy-handle = <&external_phy>;
> +
> +	snps,reset-gpio = <&gpio GPIOZ_14 0>;
> +	snps,reset-delays-us = <0 10000 1000000>;
> +	snps,reset-active-low;
> +
> +	/* External PHY is in RGMII */
> +	phy-mode = "rgmii";
> +};
> +
> +&external_mdio {
> +	external_phy: ethernet-phy@0 {
> +		compatible = "ethernet-phy-id001c.c916", "ethernet-phy-ieee802.3-c22";
> +		reg = <0>;
> +		max-speed = <1000>;
> +	};
> +};
> -- 
> 2.7.0
> 
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