From 94f18b9b24ee4d812ebd30ff848298a9f413f07a Mon Sep 17 00:00:00 2001 From: Nicolas Saenz Julienne Date: Wed, 26 Feb 2020 17:46:00 +0100 Subject: ARM: dts: bcm2711: Add pcie0 alias Some bcm2711 revisions have different DMA constraints on the their PCIE bus. The lower common denominator, being able to access the lower 3GB of memory, is the default setting for now. Newer SoC revisions are able to access the whole memory space. Raspberry Pi 4's firmware is aware of this limitation and will correct the PCIE's dma-ranges property if a pcie0 alias is available. So add it. Fixes: d5c8dc0d4c88 ("ARM: dts: bcm2711: Enable PCIe controller") Signed-off-by: Nicolas Saenz Julienne Reviewed-by: Phil Elwell Signed-off-by: Florian Fainelli --- arch/arm/boot/dts/bcm2711-rpi-4-b.dts | 1 + 1 file changed, 1 insertion(+) (limited to 'arch/arm/boot/dts') diff --git a/arch/arm/boot/dts/bcm2711-rpi-4-b.dts b/arch/arm/boot/dts/bcm2711-rpi-4-b.dts index b8c4b5bb265a..efea891b1a76 100644 --- a/arch/arm/boot/dts/bcm2711-rpi-4-b.dts +++ b/arch/arm/boot/dts/bcm2711-rpi-4-b.dts @@ -21,6 +21,7 @@ aliases { ethernet0 = &genet; + pcie0 = &pcie0; }; leds { -- cgit v1.2.3-59-g8ed1b