From: Heinrich Schuchardt <xypron.glpk@gmx.de>
To: Gregory CLEMENT <gregory.clement@bootlin.com>,
Jason Cooper <jason@lakedaemon.net>, Andrew Lunn <andrew@lunn.ch>,
Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>,
Russell King <linux@armlinux.org.uk>
Cc: Mark Rutland <mark.rutland@arm.com>,
devicetree@vger.kernel.org, linux-kernel@vger.kernel.org,
Rob Herring <robh+dt@kernel.org>,
Thomas Petazzoni <thomas.petazzoni@bootlin.com>,
linux-arm-kernel@lists.infradead.org
Subject: Re: [PATCH 1/1] arm64: dts: marvell: mcbin: enlarge PCI memory window
Date: Fri, 17 May 2019 22:55:50 +0200 [thread overview]
Message-ID: <f633e7d1-264b-8a17-7bc0-452ab38883af@gmx.de> (raw)
In-Reply-To: <87k1eozvxb.fsf@FE-laptop>
On 5/17/19 10:08 PM, Gregory CLEMENT wrote:
> Hi Heinrich Schuchardt,
>
>> Running a graphics adapter on the MACCHIATObin fails due to an
>> insufficently sized memory window.
> I think "insufficient" is enough or I miss something.
Thanks for reviewing. Do I have to resend with corrected wording?
>
>>
>> Enlarge the memory window for the PCIe slot to 512 MiB.
>>
>> With the patch I am able to use a GT710 graphics adapter with 1 GB onboard
>> memory.
>>
>> These are the mapped memory areas that the graphics adapter is actually
>> using:
>>
>> Region 0: Memory at cc000000 (32-bit, non-prefetchable) [size=16M]
>> Region 1: Memory at c0000000 (64-bit, prefetchable) [size=128M]
>> Region 3: Memory at c8000000 (64-bit, prefetchable) [size=32M]
>> Region 5: I/O ports at 1000 [size=128]
>> Expansion ROM at ca000000 [disabled] [size=512K]
>
>>From my point of view this patch is correct, I don't think it is a
> problem to map more memory. So I applied on it mvebu/dt64.
>
To which repository are your referring?
Best regards
Heinrich
> But I add also Thomas in CC who know better the PCIe support on mvebu/
>
> Thanks,
>
> Gregory
>
>
>>
>> Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
>> ---
>> arch/arm64/boot/dts/marvell/armada-8040-mcbin.dtsi | 2 ++
>> 1 file changed, 2 insertions(+)
>>
>> diff --git a/arch/arm64/boot/dts/marvell/armada-8040-mcbin.dtsi b/arch/arm64/boot/dts/marvell/armada-8040-mcbin.dtsi
>> index 329f8ceeebea..205071b45a32 100644
>> --- a/arch/arm64/boot/dts/marvell/armada-8040-mcbin.dtsi
>> +++ b/arch/arm64/boot/dts/marvell/armada-8040-mcbin.dtsi
>> @@ -184,6 +184,8 @@
>> num-lanes = <4>;
>> num-viewport = <8>;
>> reset-gpios = <&cp0_gpio2 20 GPIO_ACTIVE_LOW>;
>> + ranges = <0x81000000 0x0 0xf9010000 0x0 0xf9010000 0x0 0x10000
>> + 0x82000000 0x0 0xc0000000 0x0 0xc0000000 0x0 0x20000000>;
>> status = "okay";
>> };
>>
>> --
>> 2.20.1
>>
>
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next prev parent reply other threads:[~2019-05-17 20:56 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-05-17 16:11 [PATCH 1/1] arm64: dts: marvell: mcbin: enlarge PCI memory window Heinrich Schuchardt
2019-05-17 20:08 ` Gregory CLEMENT
2019-05-17 20:55 ` Heinrich Schuchardt [this message]
2019-05-17 21:26 ` Gregory CLEMENT
2019-05-20 15:54 ` Thomas Petazzoni
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