[U-Boot] [PATCH 17/23] ARM: tegra: Enable PCIe on TrimSlice

[Thierry Reding]

From: Thierry Reding <treding at nvidia.com>

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

Signed-off-by: Thierry Reding <treding at nvidia.com>
---
 arch/arm/dts/tegra20-trimslice.dts   | 35 +++++++++++++++++++++++++++++++++++
 board/compulab/trimslice/trimslice.c |  8 ++++++++
 include/configs/trimslice.h          | 10 ++++++++++
 3 files changed, 53 insertions(+)

diff --git a/arch/arm/dts/tegra20-trimslice.dts b/arch/arm/dts/tegra20-trimslice.dts
index ee31476c1eb8..298a0379c591 100644
--- a/arch/arm/dts/tegra20-trimslice.dts
+++ b/arch/arm/dts/tegra20-trimslice.dts
@@ -42,6 +42,16 @@
 		status = "disabled";
 	};
 
+	pcie-controller {
+		status = "okay";
+		pex-clk-supply = <&pci_clk_reg>;
+		vdd-supply = <&pci_vdd_reg>;
+
+		pci at 1,0 {
+			status = "okay";
+		};
+	};
+
 	usb at c5000000 {
 		nvidia,vbus-gpio = <&gpio 170 0>; /* PV2 */
 	};
@@ -61,4 +71,29 @@
 		wp-gpios = <&gpio 122 0>; /* gpio PP2 */
 		bus-width = <4>;
 	};
+
+	regulators {
+		compatible = "simple-bus";
+		#address-cells = <1>;
+		#size-cells = <0>;
+
+		pci_clk_reg: regulator at 3 {
+			compatible = "regulator-fixed";
+			reg = <3>;
+			regulator-name = "pci_clk";
+			regulator-min-microvolt = <3300000>;
+			regulator-max-microvolt = <3300000>;
+			regulator-always-on;
+		};
+
+		pci_vdd_reg: regulator at 4 {
+			compatible = "regulator-fixed";
+			reg = <4>;
+			regulator-name = "pci_vdd";
+			regulator-min-microvolt = <1050000>;
+			regulator-max-microvolt = <1050000>;
+			regulator-always-on;
+		};
+	};
+
 };
diff --git a/board/compulab/trimslice/trimslice.c b/board/compulab/trimslice/trimslice.c
index 723293fef35a..c9da80d5eb1c 100644
--- a/board/compulab/trimslice/trimslice.c
+++ b/board/compulab/trimslice/trimslice.c
@@ -13,6 +13,7 @@
 #include <asm/arch/pinmux.h>
 #include <asm/gpio.h>
 #include <i2c.h>
+#include <netdev.h>
 
 void pin_mux_usb(void)
 {
@@ -40,3 +41,10 @@ void pin_mux_mmc(void)
 	/* For CD GPIO PP1 */
 	pinmux_tristate_disable(PMUX_PINGRP_DAP3);
 }
+
+#ifdef CONFIG_PCI
+int board_eth_init(bd_t *bis)
+{
+	return pci_eth_init(bis);
+}
+#endif
diff --git a/include/configs/trimslice.h b/include/configs/trimslice.h
index f81cfa2e354d..285dc7a9e660 100644
--- a/include/configs/trimslice.h
+++ b/include/configs/trimslice.h
@@ -68,6 +68,16 @@
 #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
-- 
2.0.4