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Date: Fri, 17 May 2019 22:55:50 +0200 From: Heinrich Schuchardt <xypron.glpk@....de> To: Gregory CLEMENT <gregory.clement@...tlin.com>, Jason Cooper <jason@...edaemon.net>, Andrew Lunn <andrew@...n.ch>, Sebastian Hesselbarth <sebastian.hesselbarth@...il.com>, Russell King <linux@...linux.org.uk> Cc: Rob Herring <robh+dt@...nel.org>, Mark Rutland <mark.rutland@....com>, linux-arm-kernel@...ts.infradead.org, devicetree@...r.kernel.org, linux-kernel@...r.kernel.org, Thomas Petazzoni <thomas.petazzoni@...tlin.com> Subject: Re: [PATCH 1/1] arm64: dts: marvell: mcbin: enlarge PCI memory window 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@....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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