linux-kernel - Re: [PATCH v4 14/16] arm64: allwinner: A100: add the basical Allwinner A100 DTSI file

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Message-ID: <CAEExFWu0PUOD0R+QvEiOsoZy_7JO_53i6OH3JoavVvGASxEeuA@mail.gmail.com>
Date:   Fri, 24 Jul 2020 14:25:33 +0800
From:   Frank Lee <tiny.windzz@...il.com>
To:     Maxime Ripard <maxime@...no.tech>
Cc:     Frank Lee <frank@...winnertech.com>,
        Rob Herring <robh+dt@...nel.org>, Chen-Yu Tsai <wens@...e.org>,
        devicetree <devicetree@...r.kernel.org>,
        Linux ARM <linux-arm-kernel@...ts.infradead.org>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        黄烁生 <huangshuosheng@...winnertech.com>,
        liyong@...winnertech.com
Subject: Re: [PATCH v4 14/16] arm64: allwinner: A100: add the basical
 Allwinner A100 DTSI file

HI,

On Fri, Jul 24, 2020 at 12:54 AM Maxime Ripard <maxime@...no.tech> wrote:
>
> Hi,
>
> On Tue, Jul 14, 2020 at 03:20:29PM +0800, Frank Lee wrote:
> > From: Yangtao Li <frank@...winnertech.com>
> >
> > Allwinner A100 is a new SoC with Cortex-A53 cores, this commit adds
> > the basical DTSI file of it, including the clock, i2c, pins, sid, ths,
> > nmi, and UART support.
> >
> > Signed-off-by: Yangtao Li <frank@...winnertech.com>
> > ---
> >  .../arm64/boot/dts/allwinner/sun50i-a100.dtsi | 364 ++++++++++++++++++
> >  1 file changed, 364 insertions(+)
> >  create mode 100644 arch/arm64/boot/dts/allwinner/sun50i-a100.dtsi
> >
> > diff --git a/arch/arm64/boot/dts/allwinner/sun50i-a100.dtsi b/arch/arm64/boot/dts/allwinner/sun50i-a100.dtsi
> > new file mode 100644
> > index 000000000000..3fb2443f2121
> > --- /dev/null
> > +++ b/arch/arm64/boot/dts/allwinner/sun50i-a100.dtsi
> > @@ -0,0 +1,364 @@
> > +// SPDX-License-Identifier: (GPL-2.0+ or MIT)
> > +/*
> > + * Copyright (c) 2020 Yangtao Li <frank@...winnertech.com>
> > + */
> > +
> > +#include <dt-bindings/interrupt-controller/arm-gic.h>
> > +#include <dt-bindings/clock/sun50i-a100-ccu.h>
> > +#include <dt-bindings/clock/sun50i-a100-r-ccu.h>
> > +#include <dt-bindings/reset/sun50i-a100-ccu.h>
> > +#include <dt-bindings/reset/sun50i-a100-r-ccu.h>
> > +
> > +/ {
> > +     interrupt-parent = <&gic>;
> > +     #address-cells = <2>;
> > +     #size-cells = <2>;
> > +
> > +     cpus {
> > +             #address-cells = <1>;
> > +             #size-cells = <0>;
> > +
> > +             cpu0: cpu@0 {
> > +                     compatible = "arm,armv8";
>
> You should use the arm,cortex-a53 compatible here, arm,armv8 is for
> software models.
>
> > +             sid@...6000 {
>
> The node name is supposed to be the class of the device, and the DT spec
> defines a list of them already. eeprom would be better suited here.

EFuse is more accurate?

Thx,
Yangtao