ARM: tegra: Enable PCIe on Beaver

The Beaver has an ethernet NIC connected to the PCIe bus. Enable the
PCIe controller and the network device driver so that the device can
boot over the network.

In addition the board has a mini-PCIe expansion slot.

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-beaver.dts

@@ -28,6 +28,33 @@
 		reg = <0x80000000 0x7ff00000>;
 	};
 
+	pcie-controller@00003000 {
+		status = "okay";
+
+		avdd-pexa-supply = <&ldo1_reg>;
+		vdd-pexa-supply = <&ldo1_reg>;
+		avdd-pexb-supply = <&ldo1_reg>;
+		vdd-pexb-supply = <&ldo1_reg>;
+		avdd-pex-pll-supply = <&ldo1_reg>;
+		avdd-plle-supply = <&ldo1_reg>;
+		vddio-pex-ctl-supply = <&sys_3v3_reg>;
+		hvdd-pex-supply = <&sys_3v3_pexs_reg>;
+
+		pci@1,0 {
+			status = "okay";
+			nvidia,num-lanes = <2>;
+		};
+
+		pci@2,0 {
+			nvidia,num-lanes = <2>;
+		};
+
+		pci@3,0 {
+			status = "okay";
+			nvidia,num-lanes = <2>;
+		};
+	};
+
 	i2c@7000c000 {
 		status = "okay";
 		clock-frequency = <100000>;
@@ -51,6 +78,110 @@
 	i2c@7000d000 {
 		status = "okay";
 		clock-frequency = <100000>;
+
+		pmic: tps65911@2d {
+			compatible = "ti,tps65911";
+			reg = <0x2d>;
+
+			interrupts = <GIC_SPI 86 IRQ_TYPE_LEVEL_HIGH>;
+			#interrupt-cells = <2>;
+			interrupt-controller;
+
+			ti,system-power-controller;
+
+			#gpio-cells = <2>;
+			gpio-controller;
+
+			vcc1-supply = <&vdd_5v_in_reg>;
+			vcc2-supply = <&vdd_5v_in_reg>;
+			vcc3-supply = <&vio_reg>;
+			vcc4-supply = <&vdd_5v_in_reg>;
+			vcc5-supply = <&vdd_5v_in_reg>;
+			vcc6-supply = <&vdd2_reg>;
+			vcc7-supply = <&vdd_5v_in_reg>;
+			vccio-supply = <&vdd_5v_in_reg>;
+
+			regulators {
+				#address-cells = <1>;
+				#size-cells = <0>;
+
+				vdd1_reg: vdd1 {
+					regulator-name = "vddio_ddr_1v2";
+					regulator-min-microvolt = <1200000>;
+					regulator-max-microvolt = <1200000>;
+					regulator-always-on;
+				};
+
+				vdd2_reg: vdd2 {
+					regulator-name = "vdd_1v5_gen";
+					regulator-min-microvolt = <1500000>;
+					regulator-max-microvolt = <1500000>;
+					regulator-always-on;
+				};
+
+				vddctrl_reg: vddctrl {
+					regulator-name = "vdd_cpu,vdd_sys";
+					regulator-min-microvolt = <1000000>;
+					regulator-max-microvolt = <1000000>;
+					regulator-always-on;
+				};
+
+				vio_reg: vio {
+					regulator-name = "vdd_1v8_gen";
+					regulator-min-microvolt = <1800000>;
+					regulator-max-microvolt = <1800000>;
+					regulator-always-on;
+				};
+
+				ldo1_reg: ldo1 {
+					regulator-name = "vdd_pexa,vdd_pexb";
+					regulator-min-microvolt = <1050000>;
+					regulator-max-microvolt = <1050000>;
+				};
+
+				ldo2_reg: ldo2 {
+					regulator-name = "vdd_sata,avdd_plle";
+					regulator-min-microvolt = <1050000>;
+					regulator-max-microvolt = <1050000>;
+				};
+
+				/* LDO3 is not connected to anything */
+
+				ldo4_reg: ldo4 {
+					regulator-name = "vdd_rtc";
+					regulator-min-microvolt = <1200000>;
+					regulator-max-microvolt = <1200000>;
+					regulator-always-on;
+				};
+
+				ldo5_reg: ldo5 {
+					regulator-name = "vddio_sdmmc,avdd_vdac";
+					regulator-min-microvolt = <3300000>;
+					regulator-max-microvolt = <3300000>;
+					regulator-always-on;
+				};
+
+				ldo6_reg: ldo6 {
+					regulator-name = "avdd_dsi_csi,pwrdet_mipi";
+					regulator-min-microvolt = <1200000>;
+					regulator-max-microvolt = <1200000>;
+				};
+
+				ldo7_reg: ldo7 {
+					regulator-name = "vdd_pllm,x,u,a_p_c_s";
+					regulator-min-microvolt = <1200000>;
+					regulator-max-microvolt = <1200000>;
+					regulator-always-on;
+				};
+
+				ldo8_reg: ldo8 {
+					regulator-name = "vdd_ddr_hs";
+					regulator-min-microvolt = <1000000>;
+					regulator-max-microvolt = <1000000>;
+					regulator-always-on;
+				};
+			};
+		};
 	};
 
 	spi@7000da00 {
@@ -86,4 +217,118 @@
 		nvidia,vbus-gpio = <&gpio 236 0>; /* PDD4 */
 		status = "okay";
 	};
+
+	regulators {
+		compatible = "simple-bus";
+		#address-cells = <1>;
+		#size-cells = <0>;
+
+		vdd_5v_in_reg: regulator@0 {
+			compatible = "regulator-fixed";
+			reg = <0>;
+			regulator-name = "vdd_5v_in";
+			regulator-min-microvolt = <5000000>;
+			regulator-max-microvolt = <5000000>;
+			regulator-always-on;
+		};
+
+		chargepump_5v_reg: regulator@1 {
+			compatible = "regulator-fixed";
+			reg = <1>;
+			regulator-name = "chargepump_5v";
+			regulator-min-microvolt = <5000000>;
+			regulator-max-microvolt = <5000000>;
+			regulator-boot-on;
+			regulator-always-on;
+			enable-active-high;
+			gpio = <&pmic 0 GPIO_ACTIVE_HIGH>;
+		};
+
+		ddr_reg: regulator@2 {
+			compatible = "regulator-fixed";
+			reg = <2>;
+			regulator-name = "vdd_ddr";
+			regulator-min-microvolt = <1500000>;
+			regulator-max-microvolt = <1500000>;
+			regulator-always-on;
+			regulator-boot-on;
+			enable-active-high;
+			gpio = <&pmic 7 GPIO_ACTIVE_HIGH>;
+			vin-supply = <&vdd_5v_in_reg>;
+		};
+
+		vdd_5v_sata_reg: regulator@3 {
+			compatible = "regulator-fixed";
+			reg = <3>;
+			regulator-name = "vdd_5v_sata";
+			regulator-min-microvolt = <5000000>;
+			regulator-max-microvolt = <5000000>;
+			regulator-always-on;
+			regulator-boot-on;
+			enable-active-high;
+			gpio = <&gpio TEGRA_GPIO(D, 6) GPIO_ACTIVE_HIGH>;
+			vin-supply = <&vdd_5v_in_reg>;
+		};
+
+		usb1_vbus_reg: regulator@4 {
+			compatible = "regulator-fixed";
+			reg = <4>;
+			regulator-name = "usb1_vbus";
+			regulator-min-microvolt = <5000000>;
+			regulator-max-microvolt = <5000000>;
+			enable-active-high;
+			gpio = <&gpio TEGRA_GPIO(DD, 6) GPIO_ACTIVE_HIGH>;
+			gpio-open-drain;
+			vin-supply = <&vdd_5v_in_reg>;
+		};
+
+		usb3_vbus_reg: regulator@5 {
+			compatible = "regulator-fixed";
+			reg = <5>;
+			regulator-name = "usb3_vbus";
+			regulator-min-microvolt = <5000000>;
+			regulator-max-microvolt = <5000000>;
+			enable-active-high;
+			gpio = <&gpio TEGRA_GPIO(DD, 4) GPIO_ACTIVE_HIGH>;
+			gpio-open-drain;
+			vin-supply = <&vdd_5v_in_reg>;
+		};
+
+		sys_3v3_reg: regulator@6 {
+			compatible = "regulator-fixed";
+			reg = <6>;
+			regulator-name = "sys_3v3,vdd_3v3_alw";
+			regulator-min-microvolt = <3300000>;
+			regulator-max-microvolt = <3300000>;
+			regulator-always-on;
+			regulator-boot-on;
+			enable-active-high;
+			gpio = <&pmic 6 GPIO_ACTIVE_HIGH>;
+			vin-supply = <&vdd_5v_in_reg>;
+		};
+
+		sys_3v3_pexs_reg: regulator@7 {
+			compatible = "regulator-fixed";
+			reg = <7>;
+			regulator-name = "sys_3v3_pexs";
+			regulator-min-microvolt = <3300000>;
+			regulator-max-microvolt = <3300000>;
+			regulator-always-on;
+			regulator-boot-on;
+			enable-active-high;
+			gpio = <&gpio TEGRA_GPIO(L, 7) GPIO_ACTIVE_HIGH>;
+			vin-supply = <&sys_3v3_reg>;
+		};
+
+		vdd_5v0_hdmi: regulator@8 {
+			compatible = "regulator-fixed";
+			reg = <8>;
+			regulator-name = "+VDD_5V_HDMI";
+			regulator-min-microvolt = <5000000>;
+			regulator-max-microvolt = <5000000>;
+			regulator-always-on;
+			regulator-boot-on;
+			vin-supply = <&sys_3v3_reg>;
+		};
+	};
 };

include/configs/beaver.h

@@ -76,6 +76,16 @@
 #define CONFIG_USB_HOST_ETHER
 #define CONFIG_USB_ETHER_ASIX
 
+/* PCI host support */
+#define CONFIG_PCI
+#define CONFIG_PCI_TEGRA
+#define CONFIG_PCI_PNP
+#define CONFIG_CMD_PCI
+#define CONFIG_CMD_PCI_ENUM
+
+/* PCI networking support */
+#define CONFIG_RTL8169
+
 /* General networking support */
 #define CONFIG_CMD_NET
 #define CONFIG_CMD_DHCP