linux-kernel - Re: [PATCH v2 6/7] arm64: dts: qcom: Add SM7125 device tree

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Message-ID: <CAEoe_eVAeNZVUHgpj64Redx5vg7wfzU4wjgH33TZ7ieoDifH-Q@mail.gmail.com>
Date:   Thu, 6 Jul 2023 17:36:35 +0200
From:   David Wronek <davidwronek@...il.com>
To:     Konrad Dybcio <konrad.dybcio@...aro.org>
Cc:     Andy Gross <agross@...nel.org>,
        Bjorn Andersson <andersson@...nel.org>,
        Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Conor Dooley <conor+dt@...nel.org>,
        Michael Turquette <mturquette@...libre.com>,
        Stephen Boyd <sboyd@...nel.org>,
        Taniya Das <quic_tdas@...cinc.com>,
        linux-arm-msm@...r.kernel.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org, linux-clk@...r.kernel.org,
        ~postmarketos/upstreaming@...ts.sr.ht, phone-devel@...r.kernel.org
Subject: Re: [PATCH v2 6/7] arm64: dts: qcom: Add SM7125 device tree

On Thu, Jul 6, 2023 at 5:25 PM Konrad Dybcio <konrad.dybcio@...aro.org> wrote:
> On 6.07.2023 14:40, David Wronek wrote:
> > The Snapdragon 720G (sm7125) is software-wise very similar to the
> > Snapdragon 7c with minor differences in clock speeds and as added here,
> > it uses the Kryo 465 instead of Kryo 468.
> >
> > Signed-off-by: David Wronek <davidwronek@...il.com>
> > ---
> Can you please paste the output of `dmesg | grep "secondary processor"`?
>
> That would let us determine the unique identifier of the cores.
>
> Konrad
I get this output with the command:
[    0.005884] CPU1: Booted secondary processor 0x0000000100 [0x51df805e]
[    0.007191] CPU2: Booted secondary processor 0x0000000200 [0x51df805e]
[    0.008559] CPU3: Booted secondary processor 0x0000000300 [0x51df805e]
[    0.010046] CPU4: Booted secondary processor 0x0000000400 [0x51df805e]
[    0.011639] CPU5: Booted secondary processor 0x0000000500 [0x51df805e]
[    0.014424] CPU6: Booted secondary processor 0x0000000600 [0x51ff804f]
[    0.016421] CPU7: Booted secondary processor 0x0000000700 [0x51ff804f]

Sincerely,
David
> >  arch/arm64/boot/dts/qcom/sm7125.dtsi | 16 ++++++++++++++++
> >  1 file changed, 16 insertions(+)
> >  create mode 100644 arch/arm64/boot/dts/qcom/sm7125.dtsi
> >
> > diff --git a/arch/arm64/boot/dts/qcom/sm7125.dtsi b/arch/arm64/boot/dts/qcom/sm7125.dtsi
> > new file mode 100644
> > index 000000000000..12dd72859a43
> > --- /dev/null
> > +++ b/arch/arm64/boot/dts/qcom/sm7125.dtsi
> > @@ -0,0 +1,16 @@
> > +// SPDX-License-Identifier: GPL-2.0
> > +/*
> > + * Copyright (c) 2021, The Linux Foundation. All rights reserved.
> > + */
> > +
> > +#include "sc7180.dtsi"
> > +
> > +/* SM7125 uses Kryo 465 instead of Kryo 468 */
> > +&CPU0 { compatible = "qcom,kryo465"; };
> > +&CPU1 { compatible = "qcom,kryo465"; };
> > +&CPU2 { compatible = "qcom,kryo465"; };
> > +&CPU3 { compatible = "qcom,kryo465"; };
> > +&CPU4 { compatible = "qcom,kryo465"; };
> > +&CPU5 { compatible = "qcom,kryo465"; };
> > +&CPU6 { compatible = "qcom,kryo465"; };
> > +&CPU7 { compatible = "qcom,kryo465"; };