ARM: tegra: Add Tegra30 PCIe device tree node

Add the device tree node for the PCIe controller found on Tegra30 SoCs.

Signed-off-by: Thierry Reding <treding@nvidia.com>
Signed-off-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Tom Warren <twarren@nvidia.com>

arch/arm/dts/tegra30.dtsi

@@ -16,6 +16,80 @@
 		#interrupt-cells = <3>;
 	};
 
+	pcie-controller@00003000 {
+		compatible = "nvidia,tegra30-pcie";
+		device_type = "pci";
+		reg = <0x00003000 0x00000800   /* PADS registers */
+		       0x00003800 0x00000200   /* AFI registers */
+		       0x10000000 0x10000000>; /* configuration space */
+		reg-names = "pads", "afi", "cs";
+		interrupts = <GIC_SPI 98 IRQ_TYPE_LEVEL_HIGH   /* controller interrupt */
+		              GIC_SPI 99 IRQ_TYPE_LEVEL_HIGH>; /* MSI interrupt */
+		interrupt-names = "intr", "msi";
+
+		#interrupt-cells = <1>;
+		interrupt-map-mask = <0 0 0 0>;
+		interrupt-map = <0 0 0 0 &intc GIC_SPI 98 IRQ_TYPE_LEVEL_HIGH>;
+
+		bus-range = <0x00 0xff>;
+		#address-cells = <3>;
+		#size-cells = <2>;
+
+		ranges = <0x82000000 0 0x00000000 0x00000000 0 0x00001000   /* port 0 configuration space */
+			  0x82000000 0 0x00001000 0x00001000 0 0x00001000   /* port 1 configuration space */
+			  0x82000000 0 0x00004000 0x00004000 0 0x00001000   /* port 2 configuration space */
+			  0x81000000 0 0          0x02000000 0 0x00010000   /* downstream I/O */
+			  0x82000000 0 0x20000000 0x20000000 0 0x10000000   /* non-prefetchable memory */
+			  0xc2000000 0 0x30000000 0x30000000 0 0x10000000>; /* prefetchable memory */
+
+		clocks = <&tegra_car TEGRA30_CLK_PCIE>,
+			 <&tegra_car TEGRA30_CLK_AFI>,
+			 <&tegra_car TEGRA30_CLK_PCIEX>,
+			 <&tegra_car TEGRA30_CLK_PLL_E>,
+			 <&tegra_car TEGRA30_CLK_CML0>;
+		clock-names = "pex", "afi", "pcie_xclk", "pll_e", "cml";
+		status = "disabled";
+
+		pci@1,0 {
+			device_type = "pci";
+			assigned-addresses = <0x82000800 0 0x00000000 0 0x1000>;
+			reg = <0x000800 0 0 0 0>;
+			status = "disabled";
+
+			#address-cells = <3>;
+			#size-cells = <2>;
+			ranges;
+
+			nvidia,num-lanes = <2>;
+		};
+
+		pci@2,0 {
+			device_type = "pci";
+			assigned-addresses = <0x82001000 0 0x00001000 0 0x1000>;
+			reg = <0x001000 0 0 0 0>;
+			status = "disabled";
+
+			#address-cells = <3>;
+			#size-cells = <2>;
+			ranges;
+
+			nvidia,num-lanes = <2>;
+		};
+
+		pci@3,0 {
+			device_type = "pci";
+			assigned-addresses = <0x82001800 0 0x00004000 0 0x1000>;
+			reg = <0x001800 0 0 0 0>;
+			status = "disabled";
+
+			#address-cells = <3>;
+			#size-cells = <2>;
+			ranges;
+
+			nvidia,num-lanes = <2>;
+		};
+	};
+
 	tegra_car: clock {
 		compatible = "nvidia,tegra30-car";
 		reg = <0x60006000 0x1000>;

include/dt-bindings/clock/tegra30-car.h

@@ -92,7 +92,7 @@
 #define TEGRA30_CLK_OWR 71
 #define TEGRA30_CLK_AFI 72
 #define TEGRA30_CLK_CSITE 73
-/* 74 */
+#define TEGRA30_CLK_PCIEX 74
 #define TEGRA30_CLK_AVPUCQ 75
 #define TEGRA30_CLK_LA 76
 /* 77 */