From mboxrd@z Thu Jan  1 00:00:00 1970
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Date: Wed, 7 Mar 2018 15:10:25 +0000
From: James Hogan <jhogan@kernel.org>
To: PrasannaKumar Muralidharan <prasannatsmkumar@gmail.com>
Cc: Rob Herring <robh+dt@kernel.org>, Mark Rutland <mark.rutland@arm.com>,
	Ralf Baechle <ralf@linux-mips.org>,
	Michael Turquette <mturquette@baylibre.com>, sboyd@codeaurora.org,
	"open list:OPEN FIRMWARE AND FLATTENED DEVICE TREE BINDINGS" <devicetree@vger.kernel.org>,
	Linux-MIPS <linux-mips@linux-mips.org>, linux-clk@vger.kernel.org,
	open list <linux-kernel@vger.kernel.org>,
	Paul Cercueil <paul@crapouillou.net>,
	Mathieu Malaterre <malat@debian.org>,
	Dominik Peklo <dom.peklo@gmail.com>
Subject: Re: [RFC 3/4] MIPS: Ingenic: Initial X1000 SoC support
Message-ID: <20180307151025.GP4197@saruman>
References: <20170927151527.25570-1-prasannatsmkumar@gmail.com>
 <20170927151527.25570-4-prasannatsmkumar@gmail.com>
 <20180306000832.GL4197@saruman>
 <CANc+2y5_R5xYQuLbW7NAjO4mcW5RNn3Da77tAhYU5zj=0rkBDQ@mail.gmail.com>
 <20180307143541.GN4197@saruman>
 <CANc+2y5wsvGWszu3pePYhs2wb1_AgPdjG+ugfOCzbZVfVHDMvw@mail.gmail.com>
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On Wed, Mar 07, 2018 at 08:35:00PM +0530, PrasannaKumar Muralidharan wrote:
> On 7 March 2018 at 20:05, James Hogan <jhogan@kernel.org> wrote:
> > On Wed, Mar 07, 2018 at 07:14:49PM +0530, PrasannaKumar Muralidharan wr=
ote:
> >> > Does X1000 use a different PRID, or is it basically just a JZ4780 co=
re
> >> > with different SoC peripherals?
> >>
> >> Yes X1000 does have a different PRID (PRID =3D 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).
>=20
> Okay. Does this mean I need not modify get_board_mach_type() and
> get_system_type()?

You still need to modify them, otherwise it won't understand
"ingenic,x1000" compatible string, and will call it a JZ4740 in
/proc/cpuinfo.

> >> 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.
>=20
> Seems Jiaxun is interested in the board and is willing to help.

Okay, cool.

Cheers
James

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