[10/11] arm64: dts: fast models: Enable PCIe ATS for Base RevC FVP
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Message ID 20200213165049.508908-11-jean-philippe@linaro.org
State New
Headers show
  • PCI/ATS: Device-tree support and other improvements
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Commit Message

Jean-Philippe Brucker Feb. 13, 2020, 4:50 p.m. UTC
Declare that the host controller supports ATS, so the OS can enable it
for ATS-capable PCIe endpoints.

Signed-off-by: Jean-Philippe Brucker <jean-philippe@linaro.org>
All endpoints support ATS provided they have the ats_supported=1 model
parameter. "lspci -vv" shows whether ATS is supported and enabled.
 arch/arm64/boot/dts/arm/fvp-base-revc.dts | 1 +
 1 file changed, 1 insertion(+)

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diff --git a/arch/arm64/boot/dts/arm/fvp-base-revc.dts b/arch/arm64/boot/dts/arm/fvp-base-revc.dts
index 62ab0d54ff71..6e5bb7bcb4b3 100644
--- a/arch/arm64/boot/dts/arm/fvp-base-revc.dts
+++ b/arch/arm64/boot/dts/arm/fvp-base-revc.dts
@@ -170,6 +170,7 @@  pci: pci@40000000 {
 		iommu-map = <0x0 &smmu 0x0 0x10000>;
+		ats-supported;
 	smmu: smmu@2b400000 {