linux-kernel - Re: [RFC 3/4] MIPS: Ingenic: Initial X1000 SoC support

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Date:   Wed, 7 Mar 2018 14:35:41 +0000
From:   James Hogan <jhogan@...nel.org>
To:     PrasannaKumar Muralidharan <prasannatsmkumar@...il.com>
Cc:     Rob Herring <robh+dt@...nel.org>,
        Mark Rutland <mark.rutland@....com>,
        Ralf Baechle <ralf@...ux-mips.org>,
        Michael Turquette <mturquette@...libre.com>,
        sboyd@...eaurora.org,
        "open list:OPEN FIRMWARE AND FLATTENED DEVICE TREE BINDINGS" 
        <devicetree@...r.kernel.org>,
        Linux-MIPS <linux-mips@...ux-mips.org>,
        linux-clk@...r.kernel.org,
        open list <linux-kernel@...r.kernel.org>,
        Paul Cercueil <paul@...pouillou.net>,
        Mathieu Malaterre <malat@...ian.org>,
        Dominik Peklo <dom.peklo@...il.com>
Subject: Re: [RFC 3/4] MIPS: Ingenic: Initial X1000 SoC support

On Wed, Mar 07, 2018 at 07:14:49PM +0530, PrasannaKumar Muralidharan wrote:
> > Does X1000 use a different PRID, or is it basically just a JZ4780 core
> > with different SoC peripherals?
> 
> Yes X1000 does have a different PRID (PRID = 0x2ed1024f). X1000 has

Right, so thats 0x2e000000 | PRID_COMP_INGENIC_D1 | PRID_IMP_JZRISC |
0x4f, which cpu-probe.c already handles (apparently the D1 company code
is used for JZ4770 & JZ4775 too).

> I used to get my code tested from Domink but I could not reach him for
> quite some time. Before buying the development board myself I would
> like to see if anyone can help me in testing. Do you have any contact
> with Ingenic who can help in testing this?

Not personally, but I'll ask around. Of course if nobody much cares
about it in practice and nobody has the hardware, there may be little
value in supporting it upstream.

Cheers
James

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