linux-kernel - Re: [PATCH 1/3] riscv: dts: thead: add BeagleV Ahead board device tree

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Message-ID: <ZMME6cHQzHMLUCq+@x1>
Date:   Thu, 27 Jul 2023 16:59:37 -0700
From:   Drew Fustini <dfustini@...libre.com>
To:     Kwanghoon Son <k.son@...sung.com>
Cc:     'Jisheng Zhang' <jszhang@...nel.org>,
        'Conor Dooley' <conor@...nel.org>,
        'Guo Ren' <guoren@...nel.org>, 'Fu Wei' <wefu@...hat.com>,
        'Rob Herring' <robh+dt@...nel.org>,
        'Krzysztof Kozlowski' <krzysztof.kozlowski+dt@...aro.org>,
        'Conor Dooley' <conor+dt@...nel.org>,
        'Paul Walmsley' <paul.walmsley@...ive.com>,
        'Palmer Dabbelt' <palmer@...belt.com>,
        'Albert Ou' <aou@...s.berkeley.edu>,
        linux-riscv@...ts.infradead.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org,
        'Robert Nelson' <robertcnelson@...gleboard.org>,
        'Jason Kridner' <jkridner@...gleboard.org>
Subject: Re: [PATCH 1/3] riscv: dts: thead: add BeagleV Ahead board device
 tree

On Thu, Jul 27, 2023 at 06:55:37PM +0900, Kwanghoon Son wrote:
> > On Sun, Jul 23, 2023 at 10:29:57AM -0700, Drew Fustini wrote:
> > > On Sun, Jul 23, 2023 at 11:32:17AM +0100, Conor Dooley wrote:
> > > > On Sat, Jul 22, 2023 at 02:55:39PM -0700, Drew Fustini wrote:
> > > >
> > > > > +++ b/arch/riscv/boot/dts/thead/th1520-beaglev-ahead.dts
> > > > > @@ -0,0 +1,61 @@
> > > > > +// SPDX-License-Identifier: GPL-2.0
> > > >
> > > > Hmm, should this not be dual licensed?
> > > > I notice the other th1520 stuff isn't either..
> > >
> > > Good point, I'll resubmit with a dual license.
> > >
> > > Jisheng: are you okay with the other arch/riscv/boot/dts/thead files
> > > changing to a dual license?
> > 
> > When cooking the initial patch, I wrote the lpi4a dts files from
> > scratch based on sipeed opened sch file, and currently only I made
> > contributions to them, so it's easy to make the lpi4a dts files
> > dual license.
> 
> Thanks for your work.
> Is there any datasheet or user manual can get on public?
> I'm going to contribute drivers in my spare time,
> but it's hard to know the register file and dma information.
 
We (the BeagleBoard.org Foundation) have asked T-Head to publish public
documentation for the TH1520. It is our understanduing that this should
happen soon but we do not know exactly when. I'll followup in the this
thread once that happens.

Thanks,
Drew