arm64: dts: imx8mp-evk: add PCIe Endpoint function overlay file

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@nxp.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>

diff --git a/arch/arm64/boot/dts/freescale/Makefile b/arch/arm64/boot/dts/freescale/Makefile
index 13d6ba52bf3c5c8ddaa592f0ed6b269d4007c3dd..0377e0969ce9916889ee73af71751cd769706a20 100644 (file)
--- a/arch/arm64/boot/dts/freescale/Makefile
+++ b/arch/arm64/boot/dts/freescale/Makefile
@@ -210,7 +210,9 @@ 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 (file)
index 0000000..244e820
--- /dev/null
+++ b/arch/arm64/boot/dts/freescale/imx8mp-evk-pcie-ep.dtso
@@ -0,0 +1,17 @@
+// 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";
+};