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From bacf6a02fe12125d2d675f0c6238d9265d31b45f Mon Sep 17 00:00:00 2001
From: Phil Elwell <phil@raspberrypi.org>
Date: Fri, 12 Jul 2019 11:43:03 +0100
Subject: [PATCH] bcm2838.dtsi: Use BCM2711 PCIe compatible string
The BCM2711 PCIe controller has a limited address range in the B0
silicon, and the driver uses a compatible string to identify the
limitation. The current Pi 4 firmware will override the compatible
string if it detects a downstream DTB and it is running on a newer
revision but set the default value to enable the workaround for
backwards-compatibility with old firmware.
Signed-off-by: Phil Elwell <phil@raspberrypi.org>
---
arch/arm/boot/dts/bcm2838.dtsi | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
--- a/arch/arm/boot/dts/bcm2838.dtsi
+++ b/arch/arm/boot/dts/bcm2838.dtsi
@@ -327,7 +327,8 @@
#interrupt-cells = <1>;
#size-cells = <2>;
bus-range = <0x0 0x01>;
- compatible = "brcm,bcm7211-pcie", "brcm,bcm7445-pcie",
+ compatible = "brcm,bcm2711b0-pcie", // Safe value
+ "brcm,bcm2711-pcie",
"brcm,pci-plat-dev";
max-link-speed = <2>;
tot-num-pcie = <1>;
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