linux-kernel - Re: [PATCH v4 1/2] arm64: dts: lx2160a: update PCIe nodes to match rev2 silicon

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Message-ID: <20220913020323.GD1728671@dragon>
Date:   Tue, 13 Sep 2022 10:03:23 +0800
From:   Shawn Guo <shawnguo@...nel.org>
To:     Leo Li <leoyang.li@....com>
Cc:     Olof Johansson <olof@...om.net>,
        "devicetree@...r.kernel.org" <devicetree@...r.kernel.org>,
        "robh+dt@...nel.org" <robh+dt@...nel.org>,
        "linux-arm-kernel@...ts.infradead.org" 
        <linux-arm-kernel@...ts.infradead.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        "Z.Q. Hou" <zhiqiang.hou@....com>
Subject: Re: [PATCH v4 1/2] arm64: dts: lx2160a: update PCIe nodes to match
 rev2 silicon

On Mon, Sep 12, 2022 at 08:25:39PM +0000, Leo Li wrote:
> 
> 
> > -----Original Message-----
> > From: Olof Johansson <olof@...om.net>
> > Sent: Monday, September 12, 2022 2:05 AM
> > To: Leo Li <leoyang.li@....com>
> > Cc: shawnguo@...nel.org; devicetree@...r.kernel.org;
> > robh+dt@...nel.org; linux-arm-kernel@...ts.infradead.org; linux-
> > kernel@...r.kernel.org; Z.Q. Hou <zhiqiang.hou@....com>
> > Subject: Re: [PATCH v4 1/2] arm64: dts: lx2160a: update PCIe nodes to match
> > rev2 silicon
> > 
> > Hi,
> > 
> > On Wed, Aug 17, 2022 at 1:26 PM Li Yang <leoyang.li@....com> wrote:
> > >
> > > The original dts was created based on the non-production rev1 silicon
> > > which was only used for evaluation.  Update the PCIe nodes to align
> > > with the different controller used in production rev2 silicon.
> > 
> > How can I confirm what version of silicon I have on a system?
> > 
> > My non-evaluation commercially purchased system (HoneyComb LX2K) has:
> > 
> > # cat /sys/bus/soc/devices/soc0/revision
> > 1.0
> 
> This is different from the information I got.  If there is still active Rev1.0 system in use, I would agree that we probably need to create a new device tree for the rev2 silicon.  Thanks for the information.

Dropped both patches.

Shawn