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From f78a15dcaf63a5ad478670fd1d52d85261e88f37 Mon Sep 17 00:00:00 2001
From: Phil Elwell <phil@raspberrypi.com>
Date: Mon, 26 Oct 2020 10:35:43 +0000
Subject: [PATCH] ARM: dts: Expand PCIe space on BCM2711
Attempts to connect external GPUs to Compute Module 4's PCIe bus have
highlighted that the existing "outbound window" - the fraction of the
PCI address base that is appears in the host's memory map - is
restrictively small. Expand the window to a full 1GB.
See: https://www.raspberrypi.org/forums/viewtopic.php?f=98&t=288902
Signed-off-by: Phil Elwell <phil@raspberrypi.com>
---
arch/arm/boot/dts/bcm2711.dtsi | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
--- a/arch/arm/boot/dts/bcm2711.dtsi
+++ b/arch/arm/boot/dts/bcm2711.dtsi
@@ -503,8 +503,8 @@
msi-controller;
msi-parent = <&pcie0>;
- ranges = <0x02000000 0x0 0xf8000000 0x6 0x00000000
- 0x0 0x04000000>;
+ ranges = <0x02000000 0x0 0xc0000000 0x6 0x00000000
+ 0x0 0x40000000>;
/*
* The wrapper around the PCIe block has a bug
* preventing it from accessing beyond the first 3GB of
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