From mboxrd@z Thu Jan  1 00:00:00 1970
From: =?UTF-8?Q?Andreas_F=c3=a4rber?= <afaerber@suse.de>
Subject: Re: [PATCH 7/8] ARM64: dts: amlogic: Extend GXBaby GIC node
Date: Tue, 1 Mar 2016 23:46:59 +0100
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To: Andre Przywara <andre.przywara@arm.com>, linux-meson@googlegroups.com
Cc: Mark Rutland <mark.rutland@arm.com>, devicetree <devicetree@vger.kernel.org>, Matthias Brugger <mbrugger@suse.com>, Pawel Moll <pawel.moll@arm.com>, Ian Campbell <ijc+devicetree@hellion.org.uk>, Catalin Marinas <catalin.marinas@arm.com>, Nicolas Saenz <nicolassaenzj@gmail.com>, Will Deacon <will.deacon@arm.com>, LKML <linux-kernel@vger.kernel.org>, Rob Herring <robh+dt@kernel.org>, Kumar Gala <galak@codeaurora.org>, Carlo Caione <carlo@caione.org>, linux-arm-kernel@lists.infradead.org
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Am 01.03.2016 um 13:43 schrieb Andre Przywara:
> On 01/03/16 11:18, Andreas F=C3=A4rber wrote:
>> Am 01.03.2016 um 12:01 schrieb Andre Przywara:
>>> On 29/02/16 23:44, Andreas F=C3=A4rber wrote:
>>>>  			reg =3D <0x0 0xc4301000 0 0x1000>,
>>>> -			      <0x0 0xc4302000 0 0x0100>;
>>>> +			      <0x0 0xc4302000 0 0x0100>,
>>>
>>> Please use 0x2000 for the size here. I guess this is really the GIC=
-400
>>> from ARM, and in this case this is the right size, [1] is the refer=
ence
>>> here. This will enable EOI mode 1 for KVM.
>>
>> Will test later.
>>
>> Is there any easy way to find out whether or not this is that GIC-40=
0?
>=20
> If you can read registers: GICD_IIDR and PIDRx have some info:
> http://infocenter.arm.com/help/index.jsp?topic=3D/com.arm.doc.ddi0471=
b/CHDIFAEE.html
> So if your U-Boot for instance supports md, a dump of:
> md.l c4301008 1
> md.l c4301fd0 30
>=20
> would help to identify the GIC.

gxb_p200_v1#md.l c4301008 1
c4301008: 0200143b                               ;...
gxb_p200_v1#md.l c4301fd0 30
c4301fd0: 00000004 00000000 00000000 00000000    ................
c4301fe0: 00000090 000000b4 0000002b 00000000    ........+.......
c4301ff0: 0000000d 000000f0 00000005 000000b1    ................
c4302000: 00000060 000000f0 00000003 000003ff    `...............
c4302010: 00000000 000000ff 000003ff 00000000    ................
c4302020: 00000000 00000000 00000000 00000000    ................
c4302030: 00000000 00000000 00000000 00000000    ................
c4302040: 00000000 00000000 00000000 00000000    ................
c4302050: 00000000 00000000 00000000 00000000    ................
c4302060: 00000000 00000000 00000000 00000000    ................
c4302070: 00000000 00000000 00000000 00000000    ................
c4302080: 00000000 00000000 00000000 00000000    ................

Cheers,
Andreas

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