linux-kernel - Re: [PATCH 17/18] arm64: dts: renesas: Introduce r8a774b1-beacon-rzg2n-kit

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Date:   Thu, 17 Dec 2020 12:49:10 +0100
From:   Geert Uytterhoeven <geert@...ux-m68k.org>
To:     Adam Ford <aford173@...il.com>
Cc:     Linux-Renesas <linux-renesas-soc@...r.kernel.org>,
        Adam Ford-BE <aford@...conembedded.com>,
        Magnus Damm <magnus.damm@...il.com>,
        Rob Herring <robh+dt@...nel.org>,
        "open list:OPEN FIRMWARE AND FLATTENED DEVICE TREE BINDINGS" 
        <devicetree@...r.kernel.org>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH 17/18] arm64: dts: renesas: Introduce r8a774b1-beacon-rzg2n-kit

Hi Adam,

On Sun, Dec 13, 2020 at 7:38 PM Adam Ford <aford173@...il.com> wrote:
> Beacon EmebeddedWorks is introducing a new kit based on the
> RZ/G2N SoC from Renesas.
>
> The SOM supports eMMC, WiFi and Bluetooth, along with a Cat-M1
> cellular radio.
>
> The Baseboard has Ethernet, USB, HDMI, stereo audio in and out,
> along with a variety of push buttons and LED's, and support for
> a parallel RGB and an LVDS display.  It uses the same baseboard
> and SOM as the RZ/G2M.
>
> Signed-off-by: Adam Ford <aford173@...il.com>

Thanks for your patch!

> --- /dev/null
> +++ b/arch/arm64/boot/dts/renesas/r8a774b1-beacon-rzg2n-kit.dts
> @@ -0,0 +1,43 @@
> +// SPDX-License-Identifier: GPL-2.0
> +/*
> + * Copyright 2020, Compass Electronics Group, LLC
> + */
> +
> +/dts-v1/;
> +
> +#include "r8a774b1.dtsi"
> +#include "beacon-renesom-som.dtsi"
> +#include "beacon-renesom-baseboard.dtsi"
> +
> +/ {
> +       model = "Beacon Embedded Works RZ/G2N Development Kit";
> +       compatible =    "beacon,beacon-rzg2n", "renesas,r8a774b1";
> +
> +       aliases {
> +               serial0 = &scif2;
> +               serial1 = &hscif0;
> +               serial2 = &hscif1;
> +               serial3 = &scif0;
> +               serial4 = &hscif2;
> +               serial5 = &scif5;
> +               serial6 = &scif4;
> +               ethernet0 = &avb;
> +       };
> +
> +       chosen {
> +               stdout-path = "serial0:115200n8";
> +       };

No memory nodes? Are you relying on U-Boot to fill them in?
If yes, why do you have them in the other board DTS files?

> +};
> +
> +&du {
> +       status = "okay";

Missing pinctrl properties?

> +
> +       clocks = <&cpg CPG_MOD 724>,
> +               <&cpg CPG_MOD 723>,
> +               <&cpg CPG_MOD 721>,
> +               <&versaclock5 1>,
> +               <&x302_clk>,
> +               <&versaclock5 2>;
> +       clock-names = "du.0", "du.1", "du.3",
> +               "dclkin.0", "dclkin.1", "dclkin.3";
> +};

Gr{oetje,eeting}s,

                        Geert

-- 
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@...ux-m68k.org

In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
                                -- Linus Torvalds