Add a device tree enabling PCIe Root Port support on an Agilex F-series
Development Kit which has the P-tile variant of the PCIe IP.
Signed-off-by: Matthew Gerlach <matthew.gerlach@xxxxxxxxxxxxxxx>
---
v6:
- Fix SPDX header.
- Make compatible property first.
- Fix comment line wrapping.
- Don't include .dts.
v3:
- Remove accepted patches from patch set.
---
arch/arm64/boot/dts/intel/Makefile | 1 +
.../socfpga_agilex7f_socdk_pcie_root_port.dts | 87 +++++++++++++++++++
2 files changed, 88 insertions(+)
create mode 100644 arch/arm64/boot/dts/intel/socfpga_agilex7f_socdk_pcie_root_port.dts
diff --git a/arch/arm64/boot/dts/intel/Makefile b/arch/arm64/boot/dts/intel/Makefile
index d39cfb723f5b..737e81c3c3f7 100644
--- a/arch/arm64/boot/dts/intel/Makefile
+++ b/arch/arm64/boot/dts/intel/Makefile
@@ -2,6 +2,7 @@
dtb-$(CONFIG_ARCH_INTEL_SOCFPGA) += socfpga_agilex_n6000.dtb \
socfpga_agilex_socdk.dtb \
socfpga_agilex_socdk_nand.dtb \
+ socfpga_agilex7f_socdk_pcie_root_port.dtb \
socfpga_agilex5_socdk.dtb \
socfpga_n5x_socdk.dtb
dtb-$(CONFIG_ARCH_KEEMBAY) += keembay-evm.dtb
diff --git a/arch/arm64/boot/dts/intel/socfpga_agilex7f_socdk_pcie_root_port.dts b/arch/arm64/boot/dts/intel/socfpga_agilex7f_socdk_pcie_root_port.dts
new file mode 100644
index 000000000000..3588c845cf9c
--- /dev/null
+++ b/arch/arm64/boot/dts/intel/socfpga_agilex7f_socdk_pcie_root_port.dts
@@ -0,0 +1,87 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Copyright (C) 2024, Intel Corporation
+ */
+
+#include "socfpga_agilex.dtsi"
+#include "socfpga_agilex_socdk.dtsi"
+#include "socfpga_agilex_pcie_root_port.dtsi"
+
+&gmac0 {
+ status = "okay";
+ phy-mode = "rgmii";
+ phy-handle = <&phy0>;
+
+ max-frame-size = <9000>;
+
+ mdio0 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ compatible = "snps,dwmac-mdio";
+ phy0: ethernet-phy@0 {
+ reg = <4>;
+
+ txd0-skew-ps = <0>; /* -420ps */
+ txd1-skew-ps = <0>; /* -420ps */
+ txd2-skew-ps = <0>; /* -420ps */
+ txd3-skew-ps = <0>; /* -420ps */
+ rxd0-skew-ps = <420>; /* 0ps */
+ rxd1-skew-ps = <420>; /* 0ps */
+ rxd2-skew-ps = <420>; /* 0ps */
+ rxd3-skew-ps = <420>; /* 0ps */
+ txen-skew-ps = <0>; /* -420ps */
+ txc-skew-ps = <900>; /* 0ps */
+ rxdv-skew-ps = <420>; /* 0ps */
+ rxc-skew-ps = <1680>; /* 780ps */
+ };
+ };
+};
+
+&mmc {
+ status = "okay";
+ cap-sd-highspeed;
+ broken-cd;
+ bus-width = <4>;
+ clk-phase-sd-hs = <0>, <135>;
+};
+
+&qspi {
+ status = "okay";
+ flash@0 {
+ compatible = "micron,mt25qu02g", "jedec,spi-nor";
+ reg = <0>;
+ spi-max-frequency = <100000000>;
+
+ m25p,fast-read;
+ cdns,read-delay = <2>;
+ cdns,tshsl-ns = <50>;
+ cdns,tsd2d-ns = <50>;
+ cdns,tchsh-ns = <4>;
+ cdns,tslch-ns = <4>;
+
+ partitions {
+ compatible = "fixed-partitions";
+ #address-cells = <1>;
+ #size-cells = <1>;
+
+ qspi_boot: partition@0 {
+ label = "Boot and fpga data";
+ reg = <0x0 0x04200000>;
+ };
+
+ root: partition@4200000 {
+ label = "Root Filesystem - UBIFS";
+ reg = <0x04200000 0x0BE00000>;
+ };
+ };
+ };
+};
+
+&pcie_0_pcie_aglx {
+ compatible = "altr,pcie-root-port-3.0-p-tile";
+ status = "okay";
+};
+
+&pcie_0_msi_irq {
+ status = "okay";
+};
--
2.34.1
