From 70bcc9ba15690f1e616fd5f60831f4602dd39670 Mon Sep 17 00:00:00 2001 From: Suravee Suthikulpanit Date: Sun, 30 Nov 2014 21:46:40 -0600 Subject: [PATCH] arm64: amd-seattle: Fix PCI bus range due to SMMU limitation 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 Signed-off-by: Arnd Bergmann --- arch/arm64/boot/dts/amd/amd-seattle-soc.dtsi | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/arm64/boot/dts/amd/amd-seattle-soc.dtsi b/arch/arm64/boot/dts/amd/amd-seattle-soc.dtsi index 0c8e7ae96fed..2874d92881fd 100644 --- a/arch/arm64/boot/dts/amd/amd-seattle-soc.dtsi +++ b/arch/arm64/boot/dts/amd/amd-seattle-soc.dtsi @@ -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>; -- 2.30.2