target/linux/bcm27xx/patches-5.10/950-0361-ARM-dts-Expand-PCIe-space-on-BCM2711.patch

   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
   5
   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.
  10
  11 See: https://www.raspberrypi.org/forums/viewtopic.php?f=98&t=288902
  12
  13 Signed-off-by: Phil Elwell <phil@raspberrypi.com>
  14 ---
  15  arch/arm/boot/dts/bcm2711.dtsi | 4 ++--
  16  1 file changed, 2 insertions(+), 2 deletions(-)
  17
  18 --- a/arch/arm/boot/dts/bcm2711.dtsi
  19 +++ b/arch/arm/boot/dts/bcm2711.dtsi
  20 @@ -510,8 +510,8 @@
  21                         msi-controller;
  22                         msi-parent = <&pcie0>;
  23
  24 -                       ranges = <0x02000000 0x0 0xf8000000 0x6 0x00000000
  25 -                                 0x0 0x04000000>;
  26 +                       ranges = <0x02000000 0x0 0xc0000000 0x6 0x00000000
  27 +                                 0x0 0x40000000>;
  28                         /*
  29                          * The wrapper around the PCIe block has a bug
  30                          * preventing it from accessing beyond the first 3GB of