linux-kernel - Re: [PATCH v4 4/4] arm64: dts: allwinner: h616: Add BigTreeTech Pi support

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Date:   Sun, 13 Aug 2023 17:57:24 +0200
From:   Jernej Škrabec <jernej.skrabec@...il.com>
To:     Martin Botka <martin@...u3d.com>,
        Martin Botka <martin.botka1@...il.com>,
        Icenowy Zheng <uwu@...nowy.me>
Cc:     Konrad Dybcio <konrad.dybcio@...ainline.org>,
        AngeloGioacchino Del Regno 
        <angelogioacchino.delregno@...ainline.org>,
        Marijn Suijten <marijn.suijten@...ainline.org>,
        Jami Kettunen <jamipkettunen@...ainline.org>,
        Paul Bouchara <paul.bouchara@...ainline.org>,
        Martin Botka <martin.botka@...ainline.org>,
        Andre Przywara <andre.przywara@....com>,
        Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Conor Dooley <conor+dt@...nel.org>,
        Chen-Yu Tsai <wens@...e.org>,
        Samuel Holland <samuel@...lland.org>,
        Ludwig Kormann <ludwig.kormann@...42.de>,
        Andrew Lunn <andrew@...n.ch>, Heiko Stuebner <heiko@...ech.de>,
        Shawn Guo <shawnguo@...nel.org>,
        Bjorn Andersson <andersson@...nel.org>,
        Chris Morgan <macromorgan@...mail.com>,
        Jagan Teki <jagan@...eble.ai>,
        Maxime Ripard <mripard@...nel.org>, devicetree@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org, linux-sunxi@...ts.linux.dev,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH v4 4/4] arm64: dts: allwinner: h616: Add BigTreeTech Pi support

Dne nedelja, 13. avgust 2023 ob 17:42:10 CEST je Icenowy Zheng napisal(a):
> 在 2023-08-07星期一的 16:53 +0200，Martin Botka写道：
> 
> > The BigTreeTech Pi is an H616 based board based on CB1.
> > Just in Rpi format board.
> > 
> > It features the same internals as BTT CB1 but adds:
> >     - Fan port
> >     - IR receiver
> >     - ADXL345 Accelerometer connector via SPI
> >     - 24V DC power supply via terminal plugs
> >     - USB to CAN module connector (The actual USB to CAN happens on
> > the external module)
> > 
> > List of currently working things is same as BTT CB1 but also:
> >     - IR receiver
> >     - ADXL345 connector
> > 
> > Signed-off-by: Martin Botka <martin@...u3d.com>
> > Reviewed-by: Andre Przywara <andre.przywara@....com>
> > ---
> > Changes in V2:
> >     - Add UART alongside aliases and chosen for it
> >     - Add model string
> >     - Enable IR receiver
> >     - Enable SPI0 for ADXL345 connector
> > Changes in V3:
> >     - Add missing semicolons
> >     - Add pinctrl for SPI0
> > 
> >  arch/arm64/boot/dts/allwinner/Makefile        |  1 +
> >  .../allwinner/sun50i-h616-bigtreetech-pi.dts  | 70
> > +++++++++++++++++++
> >  2 files changed, 71 insertions(+)
> >  create mode 100644 arch/arm64/boot/dts/allwinner/sun50i-h616-
> > bigtreetech-pi.dts
> > 
> > diff --git a/arch/arm64/boot/dts/allwinner/Makefile
> > b/arch/arm64/boot/dts/allwinner/Makefile
> > index 7b386428510b..0b6232a7f328 100644
> > --- a/arch/arm64/boot/dts/allwinner/Makefile
> > +++ b/arch/arm64/boot/dts/allwinner/Makefile
> > @@ -39,5 +39,6 @@ dtb-$(CONFIG_ARCH_SUNXI) += sun50i-h6-pine-h64-
> > model-b.dtb
> >  dtb-$(CONFIG_ARCH_SUNXI) += sun50i-h6-tanix-tx6.dtb
> >  dtb-$(CONFIG_ARCH_SUNXI) += sun50i-h6-tanix-tx6-mini.dtb
> >  dtb-$(CONFIG_ARCH_SUNXI) += sun50i-h616-bigtreetech-cb1-manta.dtb
> > +dtb-$(CONFIG_ARCH_SUNXI) += sun50i-h616-bigtreetech-pi.dtb
> >  dtb-$(CONFIG_ARCH_SUNXI) += sun50i-h616-orangepi-zero2.dtb
> >  dtb-$(CONFIG_ARCH_SUNXI) += sun50i-h616-x96-mate.dtb
> > diff --git a/arch/arm64/boot/dts/allwinner/sun50i-h616-bigtreetech-
> > pi.dts b/arch/arm64/boot/dts/allwinner/sun50i-h616-bigtreetech-pi.dts
> > new file mode 100644
> > index 000000000000..b0d0386e8f13
> > --- /dev/null
> > +++ b/arch/arm64/boot/dts/allwinner/sun50i-h616-bigtreetech-pi.dts
> > @@ -0,0 +1,70 @@
> > +// SPDX-License-Identifier: (GPL-2.0+ or MIT)
> > +/*
> > + * Copyright (C) 2023 Martin Botka <martin@...u3d.com>.
> > + */
> > +
> > +/dts-v1/;
> > +
> > +#include "sun50i-h616-bigtreetech-cb1.dtsi"
> > +
> > +/ {
> > +       model = "BigTreeTech Pi";
> > +       compatible = "bigtreetech,pi", "allwinner,sun50i-h616";
> 
> As you say it's based on CB1 too, why no CB1 compatible here? (although
> the manta compatible won't apply)

Because it doesn't contain module per se.

Best regards,
Jernej

> 
> > +
> > +       aliases {
> > +               serial0 = &uart0;
> > +       };
> > +
> > +       chosen {
> > +               stdout-path = "serial0:115200n8";
> > +       };
> > +};
> > +
> > +&ehci0 {
> > +       status = "okay";
> > +};
> > +
> > +&ehci1 {
> > +       status = "okay";
> > +};
> > +
> > +&ehci2 {
> > +       status = "okay";
> > +};
> > +
> > +&ehci3 {
> > +       status = "okay";
> > +};
> > +
> > +&ir {
> > +       status = "okay";
> > +};
> > +
> > +&ohci0 {
> > +       status = "okay";
> > +};
> > +
> > +&ohci1 {
> > +       status = "okay";
> > +};
> > +
> > +&ohci2 {
> > +       status = "okay";
> > +};
> > +
> > +&ohci3 {
> > +       status = "okay";
> > +};
> > +
> > +&spi0 {
> > +       /* SPI connection for onboard connector for ADXL345
> > accelerometer */
> > +       status = "okay";
> > +       pinctrl-names = "default";
> > +       pinctrl-0 = <&spi0_pins>, <&spi0_cs0_pin>;
> > +};
> > +
> > +&uart0 {
> > +       pinctrl-names = "default";
> > +       pinctrl-0 = <&uart0_ph_pins>;
> > +       status = "okay";
> > +};