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arm64: amd-seattle: Fix PCI bus range due to SMMU limitation
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Since PCIe is using SMMUv1 which only supports 15-bit stream ID,
only 7-bit PCI bus id is used to specify stream ID. Therefore,
we only limit the PCI bus range to 0x7f.

Signed-off-by: Suravee Suthikulpanit <Suravee.Suthikulpanit@amd.com>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
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Suravee Suthikulpanit authored and Arnd Bergmann committed Dec 4, 2014
1 parent 6bc474d commit 70bcc9b
Showing 1 changed file with 1 addition and 1 deletion.
2 changes: 1 addition & 1 deletion arch/arm64/boot/dts/amd/amd-seattle-soc.dtsi
Original file line number Diff line number Diff line change
Expand Up @@ -147,7 +147,7 @@
#size-cells = <2>;
#interrupt-cells = <1>;
device_type = "pci";
bus-range = <0 0xff>;
bus-range = <0 0x7f>;
msi-parent = <&v2m0>;
reg = <0 0xf0000000 0 0x10000000>;

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