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Subject[PATCH 1/1] arm64: dts: marvell: mcbin: enlarge PCI memory window
Date
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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