linux-kernel - Re: [PATCH v2] arm64: dts: rockchip: Enable PCIe for Radxa Rock Pi 4 board

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Message-ID: <CAFjve-AT6c-yweF0mOPea-caG3n43nZzVPcwef-qp+n35JN9ig@mail.gmail.com>
Date:   Tue, 19 Nov 2019 08:44:06 +0800
From:   Tom Cubie <tom@...xa.com>
To:     "Matwey V. Kornilov" <matwey.kornilov@...il.com>
Cc:     Heiko Stuebner <heiko@...ech.de>,
        Mark Rutland <mark.rutland@....com>,
        "open list:OPEN FIRMWARE AND FLATTENED DEVICE TREE BINDINGS" 
        <devicetree@...r.kernel.org>,
        open list <linux-kernel@...r.kernel.org>,
        "open list:ARM/Rockchip SoC support" 
        <linux-rockchip@...ts.infradead.org>,
        Rob Herring <robh+dt@...nel.org>,
        Akash Gajjar <akash@...nedev.com>,
        Ezequiel Garcia <ezequiel@...labora.com>,
        "moderated list:ARM/Rockchip SoC support" 
        <linux-arm-kernel@...ts.infradead.org>
Subject: Re: [PATCH v2] arm64: dts: rockchip: Enable PCIe for Radxa Rock Pi 4 board

Hi, Matwey

On Tue, Nov 19, 2019 at 2:41 AM Matwey V. Kornilov
<matwey.kornilov@...il.com> wrote:
>
> Current schematics
> (https://dl.radxa.com/rockpi4/docs/hw/rockpi4/rockpi4_v13_sch_20181112.pdf)
> is controversial on 1.8 supply:
>
> On sheet 15 it says that 1.8 is supplied by VCC_1V8
> at the same time on sheet 3 it says that it is supplied by VCCA_1V8

I am sorry for the confusion of the schematic. Please ignore the power
tree on sheet 3, it's from the original reference design, I think we
have different power paths on ROCK Pi 4. Please refer the circuits
starting from sheet 5 below. It reflects the real hardware. We will
fix the power tree and upload a new version of the schematic.

>
> >
> > Thanks
> > Heiko
> >
> >
>
>
> --
> With best regards,
> Matwey V. Kornilov
>
> _______________________________________________
> Linux-rockchip mailing list
> Linux-rockchip@...ts.infradead.org
> http://lists.infradead.org/mailman/listinfo/linux-rockchip

-- 
radxa rock pi 4 - the next generation Pi.

radxa.com

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