arm64: tegra: Enable PCIe on Jetson TX2

Enable x4 PCIe slot on Jetson TX2.

Signed-off-by: Manikanta Maddireddy <mmaddireddy@nvidia.com>
Reviewed-by: Mikko Perttunen <mperttunen@nvidia.com>
Tested-by: Mikko Perttunen <mperttunen@nvidia.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>

diff --git a/arch/arm64/boot/dts/nvidia/tegra186-p2771-0000.dts b/arch/arm64/boot/dts/nvidia/tegra186-p2771-0000.dts
index 8daadadec63a5f4470cbde4864c3986693a5d564..d45356fa1751a16985e4a5345b66589a7924a561 100644 (file)
--- a/arch/arm64/boot/dts/nvidia/tegra186-p2771-0000.dts
+++ b/arch/arm64/boot/dts/nvidia/tegra186-p2771-0000.dts
@@ -49,6 +49,30 @@
                vmmc-supply = <&vdd_sd>;
        };
 
+       pcie@10003000 {
+               status = "okay";
+
+               dvdd-pex-supply = <&vdd_pex>;
+               hvdd-pex-pll-supply = <&vdd_1v8>;
+               hvdd-pex-supply = <&vdd_1v8>;
+               vddio-pexctl-aud-supply = <&vdd_1v8>;
+
+               pci@1,0 {
+                       nvidia,num-lanes = <4>;
+                       status = "okay";
+               };
+
+               pci@2,0 {
+                       nvidia,num-lanes = <0>;
+                       status = "disabled";
+               };
+
+               pci@3,0 {
+                       nvidia,num-lanes = <1>;
+                       status = "disabled";
+               };
+       };
+
        gpio-keys {
                compatible = "gpio-keys";