linux-kernel - Re: [PATCH 2/5] riscv: Add the T-HEAD SoC family Kconfig option

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Message-ID: <CAJF2gTSZmjScBERVxxsEJ-q-HdXn+daT5-H-QvGt2iWxPCaT3g@mail.gmail.com>
Date:   Mon, 8 May 2023 14:58:02 +0800
From:   Guo Ren <guoren@...nel.org>
To:     Conor Dooley <conor.dooley@...rochip.com>
Cc:     Conor Dooley <conor@...nel.org>,
        Jisheng Zhang <jszhang@...nel.org>,
        Thomas Gleixner <tglx@...utronix.de>,
        Marc Zyngier <maz@...nel.org>,
        Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Conor Dooley <conor+dt@...nel.org>,
        Palmer Dabbelt <palmer@...belt.com>,
        Paul Walmsley <paul.walmsley@...ive.com>,
        Albert Ou <aou@...s.berkeley.edu>,
        linux-kernel@...r.kernel.org, devicetree@...r.kernel.org,
        linux-riscv@...ts.infradead.org
Subject: Re: [PATCH 2/5] riscv: Add the T-HEAD SoC family Kconfig option

On Mon, May 8, 2023 at 2:53 PM Conor Dooley <conor.dooley@...rochip.com> wrote:
>
> On Mon, May 08, 2023 at 02:42:10PM +0800, Guo Ren wrote:
> > On Mon, May 8, 2023 at 5:22 AM Conor Dooley <conor@...nel.org> wrote:
> > >
> > > On Mon, May 08, 2023 at 02:23:01AM +0800, Jisheng Zhang wrote:
> > > > The first SoC in the T-HEAD series is light(a.k.a th1520), containing
> > > > quad T-HEAD C910 cores.
> > > >
> > > > Signed-off-by: Jisheng Zhang <jszhang@...nel.org>
> > > > ---
> > > >  arch/riscv/Kconfig.socs | 6 ++++++
> > > >  1 file changed, 6 insertions(+)
> > > >
> > > > diff --git a/arch/riscv/Kconfig.socs b/arch/riscv/Kconfig.socs
> > > > index 1cf69f958f10..ce10a38dff37 100644
> > > > --- a/arch/riscv/Kconfig.socs
> > > > +++ b/arch/riscv/Kconfig.socs
> > > > @@ -41,6 +41,12 @@ config ARCH_SUNXI
> > > >         This enables support for Allwinner sun20i platform hardware,
> > > >         including boards based on the D1 and D1s SoCs.
> > > >
> > > > +config ARCH_THEAD
> > >
> > > Could you please add a defconfig patch, adding this option, so that we
> > > build support for this platform by default?
>
> > Yes, but it's another patch, see: 'commit eb20e7cb91ba ("riscv:
> > defconfig: Enable the Allwinner D1 platform and drivers")'
>
> But that's ARCH_SUNXI for the Allwinner D1. If the TH1520 is a
> first-party SoC, and not an Allwinner product, it needs a new Kconfig
> entry etc.
> If it is an Allwinner, then the dts etc should be in the Allwinner
> directory too.
Do you mean?
config ARCH_THEAD
        def_bool SOC_THEAD

config SOC_THEAD
        bool "T-HEAD SoCs"

In defconfig:
+CONFIG_SOC_THEAD=y

>
> Cheers,
> Conor.



-- 
Best Regards
 Guo Ren