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From:   Frank Wunderlich <frank-w@public-files.de>
To:     =?UTF-8?Q?Ar=C4=B1n=C3=A7_=C3=9CNAL?= <arinc.unal@arinc9.com>
Cc:     Rob Herring <robh+dt@kernel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@linaro.org>,
        Matthias Brugger <matthias.bgg@gmail.com>,
        AngeloGioacchino Del Regno 
        <angelogioacchino.delregno@collabora.com>,
        devicetree@vger.kernel.org, linux-kernel@vger.kernel.org,
        linux-arm-kernel@lists.infradead.org,
        linux-mediatek@lists.infradead.org, erkin.bozoglu@xeront.com
Subject: Aw: Re:  Re: Re: [PATCH v3 0/5] arm: dts: mt7623: relocate gmacs,
 mt7530 switch, and add port@5
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Date:   Sun, 19 Feb 2023 14:52:14 +0100
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Precedence: bulk

> Gesendet: Samstag, 18=2E Februar 2023 um 20:34 Uhr
> Von: "Ar=C4=B1n=C3=A7 =C3=9CNAL" <arinc=2Eunal@arinc9=2Ecom>
> An: frank-w@public-files=2Ede
> On 18=2E02=2E2023 22:11, Frank Wunderlich wrote:
> > Am 18=2E Februar 2023 18:02:11 MEZ schrieb "Ar=C4=B1n=C3=A7 =C3=9CNAL"=
 <arinc=2Eunal@arinc9=2Ecom>:
> >> On 18=2E02=2E2023 15:18, Frank Wunderlich wrote:
> Can you also remove this from mt7530=2Ec and do the test again? See if t=
he=20
> performance changes at all=2E
>=20
>          /* Set core clock into 500Mhz */
>          core_write(priv, CORE_GSWPLL_GRP2,
>                     RG_GSWPLL_POSDIV_500M(1) |
>                     RG_GSWPLL_FBKDIV_500M(25));
>=20

with these disabled i have a bit better performance (625 Mbits/sec instead=
 of 600) and no retransmitts on first iperf3-run=2E

not yet tried any rgmii-delay option (have no idea which is the right one =
on which position), but yes, mostly it does not improve performance=2E=2E=
=2Eit simply does work or does not work=2E

regards Frank