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

Thierry Reding
2014-08-18T07:16:30Z

From: Thierry Reding <treding@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@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