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