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From: Heinrich Schuchardt <xypron.glpk@gmx.de>
To: Jason Cooper <jason@lakedaemon.net>, Andrew Lunn <andrew@lunn.ch>,
	Gregory Clement <gregory.clement@bootlin.com>,
	Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>,
	Russell King <linux@armlinux.org.uk>
Cc: Mark Rutland <mark.rutland@arm.com>,
	devicetree@vger.kernel.org,
	Heinrich Schuchardt <xypron.glpk@gmx.de>,
	linux-kernel@vger.kernel.org, Rob Herring <robh+dt@kernel.org>,
	linux-arm-kernel@lists.infradead.org
Subject: [PATCH 1/1] arm64: dts: marvell: mcbin: enlarge PCI memory window
Date: Fri, 17 May 2019 18:11:23 +0200	[thread overview]
Message-ID: <20190517161123.9293-1-xypron.glpk@gmx.de> (raw)

Running a graphics adapter on the MACCHIATObin fails due to an
insufficently sized memory window.

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]

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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             reply	other threads:[~2019-05-17 16:11 UTC|newest]

Thread overview: 5+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-05-17 16:11 Heinrich Schuchardt [this message]
2019-05-17 20:08 ` [PATCH 1/1] arm64: dts: marvell: mcbin: enlarge PCI memory window Gregory CLEMENT
2019-05-17 20:55   ` Heinrich Schuchardt
2019-05-17 21:26     ` Gregory CLEMENT
2019-05-20 15:54 ` Thomas Petazzoni

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