ARM: tegra: tamonten: Add PCIe support

Add properties common to all Tamonten-derived boards to the Tamonten
DTSI and add the fixed 1.05 V regulator.
Signed-off-by: Thierry Reding <thierry.reding@avionic-design.de>
Signed-off-by: Thierry Reding <treding@nvidia.com>
Signed-off-by: Stephen Warren <swarren@nvidia.com>

arch/arm/boot/dts/tegra20-tamonten.dtsi

@@ -366,7 +366,7 @@ sm2_reg: sm2 {
 					regulator-always-on;
 				};
 
-				ldo0 {
+				pci_clk_reg: ldo0 {
 					regulator-name = "vdd_ldo0,vddio_pex_clk";
 					regulator-min-microvolt = <3300000>;
 					regulator-max-microvolt = <3300000>;
@@ -467,6 +467,11 @@ pmc {
 		nvidia,sys-clock-req-active-high;
 	};
 
+	pcie-controller {
+		pex-clk-supply = <&pci_clk_reg>;
+		vdd-supply = <&pci_vdd_reg>;
+	};
+
 	usb@c5008000 {
 		status = "okay";
 	};
@@ -509,5 +514,15 @@ vdd_5v0_reg: regulator@0 {
 			regulator-max-microvolt = <5000000>;
 			regulator-always-on;
 		};
+
+		pci_vdd_reg: regulator@1 {
+			compatible = "regulator-fixed";
+			reg = <1>;
+			regulator-name = "vdd_1v05";
+			regulator-min-microvolt = <1050000>;
+			regulator-max-microvolt = <1050000>;
+			gpio = <&pmic 2 0>;
+			enable-active-high;
+		};
 	};
 };