1 From f78a15dcaf63a5ad478670fd1d52d85261e88f37 Mon Sep 17 00:00:00 2001
2 From: Phil Elwell <phil@raspberrypi.com>
3 Date: Mon, 26 Oct 2020 10:35:43 +0000
4 Subject: [PATCH] ARM: dts: Expand PCIe space on BCM2711
6 Attempts to connect external GPUs to Compute Module 4's PCIe bus have
7 highlighted that the existing "outbound window" - the fraction of the
8 PCI address base that is appears in the host's memory map - is
9 restrictively small. Expand the window to a full 1GB.
11 See: https://www.raspberrypi.org/forums/viewtopic.php?f=98&t=288902
13 Signed-off-by: Phil Elwell <phil@raspberrypi.com>
15 arch/arm/boot/dts/bcm2711.dtsi | 4 ++--
16 1 file changed, 2 insertions(+), 2 deletions(-)
18 --- a/arch/arm/boot/dts/bcm2711.dtsi
19 +++ b/arch/arm/boot/dts/bcm2711.dtsi
22 msi-parent = <&pcie0>;
24 - ranges = <0x02000000 0x0 0xf8000000 0x6 0x00000000
26 + ranges = <0x02000000 0x0 0xc0000000 0x6 0x00000000
29 * The wrapper around the PCIe block has a bug
30 * preventing it from accessing beyond the first 3GB of