[PATCH 1/1] arm64: dts: imx8mp-evk: add PCIe Endpoint function overlay file

From: Frank Li
Date: Tue Oct 01 2024 - 14:38:19 EST


PCIe of i.MX8MP is dual role PCIe controller, which can work as root
complex (RC) mode and endpoint (EP) mode. Add overlay file to let it work
as EP mode.

Signed-off-by: Frank Li <Frank.Li@xxxxxxx>
---
arch/arm64/boot/dts/freescale/Makefile | 2 ++
.../boot/dts/freescale/imx8mp-evk-pcie-ep.dtso | 18 ++++++++++++++++++
2 files changed, 20 insertions(+)
create mode 100644 arch/arm64/boot/dts/freescale/imx8mp-evk-pcie-ep.dtso

diff --git a/arch/arm64/boot/dts/freescale/Makefile b/arch/arm64/boot/dts/freescale/Makefile
index 9d3df8b218a2e..0d8cf020ec2dd 100644
--- a/arch/arm64/boot/dts/freescale/Makefile
+++ b/arch/arm64/boot/dts/freescale/Makefile
@@ -197,7 +197,9 @@ dtb-$(CONFIG_ARCH_MXC) += imx8mp-verdin-wifi-mallow.dtb
dtb-$(CONFIG_ARCH_MXC) += imx8mp-verdin-wifi-yavia.dtb

imx8mp-evk-mx8-dlvds-lcd1-dtbs += imx8mp-evk.dtb imx8mp-evk-mx8-dlvds-lcd1.dtbo
+imx8mp-evk-pcie-ep-dtbs += imx8mp-evk.dtb imx8mp-evk-pcie-ep.dtbo
dtb-$(CONFIG_ARCH_MXC) += imx8mp-evk-mx8-dlvds-lcd1.dtb
+dtb-$(CONFIG_ARCH_MXC) += imx8mp-evk-pcie-ep.dtb

imx8mp-tqma8mpql-mba8mpxl-lvds-dtbs += imx8mp-tqma8mpql-mba8mpxl.dtb imx8mp-tqma8mpql-mba8mpxl-lvds.dtbo
imx8mp-tqma8mpql-mba8mpxl-lvds-g133han01-dtbs += imx8mp-tqma8mpql-mba8mpxl.dtb imx8mp-tqma8mpql-mba8mpxl-lvds-g133han01.dtbo
diff --git a/arch/arm64/boot/dts/freescale/imx8mp-evk-pcie-ep.dtso b/arch/arm64/boot/dts/freescale/imx8mp-evk-pcie-ep.dtso
new file mode 100644
index 0000000000000..400e36db9dccf
--- /dev/null
+++ b/arch/arm64/boot/dts/freescale/imx8mp-evk-pcie-ep.dtso
@@ -0,0 +1,18 @@
+// SPDX-License-Identifier: (GPL-2.0+ OR MIT)
+/*
+ * Copyright 2024 NXP
+ */
+
+/dts-v1/;
+/plugin/;
+
+&pcie {
+ status = "disabled";
+};
+
+&pcie_ep {
+ pinctrl-0 = <&pinctrl_pcie0>;
+ pinctrl-names = "default";
+ status = "okay";
+};
+
--
2.34.1