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39 lines
673 B
Plaintext
39 lines
673 B
Plaintext
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/*
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* pcie-32bit-dma-overlay.dts
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*/
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/dts-v1/;
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/plugin/;
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/ {
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compatible = "brcm,bcm2711";
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fragment@0 {
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target-path = "/aliases";
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__overlay__ {
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/*
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* Removing this alias stops the firmware patching the
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* PCIE DT dma-ranges based on the detected chip
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* revision.
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*/
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pcie0 = "";
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};
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};
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fragment@1 {
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target = <&pcie0>;
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__overlay__ {
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/*
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* The size of the range is rounded up to a power of 2,
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* so the range ends up being 0-4GB, and the MSI vector
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* gets pushed beyond 4GB.
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*/
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#address-cells = <3>;
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#size-cells = <2>;
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dma-ranges = <0x02000000 0x0 0x00000000 0x0 0x00000000
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0x0 0x80000000>;
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};
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};
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};
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