linux-kernel - Re: [PATCH 2/3] riscv: dts: fu540-c000: define hart clocks

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Message-ID: <CAEUhbmUUCprZ20rUUsiM4YWgH=WKsUh_WqnxXbyB7jQqdQB9Hw@mail.gmail.com>
Date:   Thu, 17 Jun 2021 06:56:06 +0800
From:   Bin Meng <bmeng.cn@...il.com>
To:     David Abdurachmanov <david.abdurachmanov@...il.com>
Cc:     Yash Shah <yash.shah@...ive.com>,
        Paul Walmsley <paul.walmsley@...ive.com>,
        Palmer Dabbelt <palmer@...belt.com>,
        Rob Herring <robh+dt@...nel.org>,
        linux-riscv <linux-riscv@...ts.infradead.org>,
        linux-kernel <linux-kernel@...r.kernel.org>,
        devicetree <devicetree@...r.kernel.org>,
        Sachin Ghadi <sachin.ghadi@...ive.com>,
        Albert Ou <aou@...s.berkeley.edu>,
        Green Wan <green.wan@...ive.com>,
        Atish Patra <atish.patra@....com>,
        Anup Patel <anup@...infault.org>,
        Alistair Francis <alistair.francis@....com>,
        lollivier@...libre.com, deepa.kernel@...il.com
Subject: Re: [PATCH 2/3] riscv: dts: fu540-c000: define hart clocks

On Wed, Jun 16, 2021 at 11:14 PM David Abdurachmanov
<david.abdurachmanov@...il.com> wrote:
>
> On Wed, Jun 16, 2021 at 6:17 AM Bin Meng <bmeng.cn@...il.com> wrote:
> >
> > On Tue, Jun 16, 2020 at 8:01 PM Yash Shah <yash.shah@...ive.com> wrote:
> > >
> > > Declare that each hart defined in the FU540 DT data is clocked by the
> > > COREPLL. This is in preparation for enabling CPUFreq for the
> > > FU540-C000 SoC on the HiFive Unleashed board.
> > >
> > > Signed-off-by: Yash Shah <yash.shah@...ive.com>
> > > ---
> > >  arch/riscv/boot/dts/sifive/fu540-c000.dtsi | 5 +++++
> > >  1 file changed, 5 insertions(+)
> > >
> >
> > Any idea of why this patch was not applied?
>
> There was a decision not to upstream CPUFreq stuff for Unleashed thus
> the whole series probably was abandoned. Not all Unleashed can operate
> in a stable way at 1.4GHz. IIRC other issues could exist. See Palmer
> reply for the whole series.

Thanks, but the DT change is still valid, and should be upstreamed.

Regards,
Bin