diff options
Diffstat (limited to 'target/linux/bcm27xx/patches-5.4/950-0422-bcm2838.dtsi-Use-BCM2711-PCIe-compatible-string.patch')
| -rw-r--r-- | target/linux/bcm27xx/patches-5.4/950-0422-bcm2838.dtsi-Use-BCM2711-PCIe-compatible-string.patch | 29 |
1 files changed, 29 insertions, 0 deletions
diff --git a/target/linux/bcm27xx/patches-5.4/950-0422-bcm2838.dtsi-Use-BCM2711-PCIe-compatible-string.patch b/target/linux/bcm27xx/patches-5.4/950-0422-bcm2838.dtsi-Use-BCM2711-PCIe-compatible-string.patch new file mode 100644 index 0000000000..2f5d87b004 --- /dev/null +++ b/target/linux/bcm27xx/patches-5.4/950-0422-bcm2838.dtsi-Use-BCM2711-PCIe-compatible-string.patch @@ -0,0 +1,29 @@ +From 8be8dc74799fe7c0e09dfa53aa41e954ffba291c 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 +@@ -314,7 +314,8 @@ + #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>; |