linux-kernel - [PATCH v14 15/15] arm64: dts: imx95-19x19-evk: Add PCIe1 endpoint function overlay file

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Message-Id: <20250207-ep-msi-v14-15-9671b136f2b8@nxp.com>
Date: Fri, 07 Feb 2025 14:39:57 -0500
From: Frank Li <Frank.Li@....com>
To: Kishon Vijay Abraham I <kishon@...nel.org>, 
 "Rafael J. Wysocki" <rafael@...nel.org>, 
 Thomas Gleixner <tglx@...utronix.de>, Anup Patel <apatel@...tanamicro.com>, 
 Kishon Vijay Abraham I <kishon@...nel.org>, Marc Zyngier <maz@...nel.org>, 
 Greg Kroah-Hartman <gregkh@...uxfoundation.org>, 
 "Rafael J. Wysocki" <rafael@...nel.org>, Danilo Krummrich <dakr@...nel.org>, 
 Manivannan Sadhasivam <manivannan.sadhasivam@...aro.org>, 
 Krzysztof Wilczyński <kw@...ux.com>, 
 Kishon Vijay Abraham I <kishon@...nel.org>, 
 Bjorn Helgaas <bhelgaas@...gle.com>, Arnd Bergmann <arnd@...db.de>, 
 Shuah Khan <shuah@...nel.org>, Richard Zhu <hongxing.zhu@....com>, 
 Lucas Stach <l.stach@...gutronix.de>, 
 Lorenzo Pieralisi <lpieralisi@...nel.org>, Rob Herring <robh@...nel.org>, 
 Shawn Guo <shawnguo@...nel.org>, Sascha Hauer <s.hauer@...gutronix.de>, 
 Pengutronix Kernel Team <kernel@...gutronix.de>, 
 Fabio Estevam <festevam@...il.com>, 
 Krzysztof Kozlowski <krzk+dt@...nel.org>, 
 Conor Dooley <conor+dt@...nel.org>
Cc: Niklas Cassel <cassel@...nel.org>, dlemoal@...nel.org, jdmason@...zu.us, 
 linux-kernel@...r.kernel.org, linux-arm-kernel@...ts.infradead.org, 
 linux-pci@...r.kernel.org, linux-kselftest@...r.kernel.org, 
 imx@...ts.linux.dev, devicetree@...r.kernel.org, 
 Frank Li <Frank.Li@....com>
Subject: [PATCH v14 15/15] arm64: dts: imx95-19x19-evk: Add PCIe1 endpoint
 function overlay file

Add an overlay file to configure PCIe1 to function as an endpoint. Enable
PCIe1 to work as endpoint mode on the imx95-19x19-evk platform.

Signed-off-by: Frank Li <Frank.Li@....com>
---
change from v13 to v14
- new patch
---
 arch/arm64/boot/dts/freescale/Makefile              |  3 +++
 .../dts/freescale/imx95-19x19-evk-pcie1-ep.dtso     | 21 +++++++++++++++++++++
 2 files changed, 24 insertions(+)

diff --git a/arch/arm64/boot/dts/freescale/Makefile b/arch/arm64/boot/dts/freescale/Makefile
index 839432153cc7a..d892303fa7eab 100644
--- a/arch/arm64/boot/dts/freescale/Makefile
+++ b/arch/arm64/boot/dts/freescale/Makefile
@@ -287,6 +287,9 @@ imx8mm-kontron-dl-dtbs			:= imx8mm-kontron-bl.dtb imx8mm-kontron-dl.dtbo

 dtb-$(CONFIG_ARCH_MXC) += imx8mm-kontron-dl.dtb

+imx95-19x19-evk-pcie1-ep-dtbs += imx95-19x19-evk.dtb imx95-19x19-evk-pcie1-ep.dtbo
+dtb-$(CONFIG_ARCH_MXC) += imx95-19x19-evk-pcie1-ep.dtb
+
 imx8mm-venice-gw72xx-0x-imx219-dtbs	:= imx8mm-venice-gw72xx-0x.dtb imx8mm-venice-gw72xx-0x-imx219.dtbo
 imx8mm-venice-gw72xx-0x-rpidsi-dtbs	:= imx8mm-venice-gw72xx-0x.dtb imx8mm-venice-gw72xx-0x-rpidsi.dtbo
 imx8mm-venice-gw72xx-0x-rs232-rts-dtbs	:= imx8mm-venice-gw72xx-0x.dtb imx8mm-venice-gw72xx-0x-rs232-rts.dtbo
diff --git a/arch/arm64/boot/dts/freescale/imx95-19x19-evk-pcie1-ep.dtso b/arch/arm64/boot/dts/freescale/imx95-19x19-evk-pcie1-ep.dtso
new file mode 100644
index 0000000000000..696588e768e61
--- /dev/null
+++ b/arch/arm64/boot/dts/freescale/imx95-19x19-evk-pcie1-ep.dtso
@@ -0,0 +1,21 @@
+// SPDX-License-Identifier: (GPL-2.0+ OR MIT)
+/*
+ * Copyright 2024 NXP
+ */
+
+#include <dt-bindings/gpio/gpio.h>
+
+/dts-v1/;
+/plugin/;
+
+&pcie1 {
+	status = "disabled";
+};
+
+&pcie1_ep {
+	pinctrl-0 = <&pinctrl_pcie0>;
+	pinctrl-names = "default";
+	reset-gpio = <&i2c7_pcal6524 16 GPIO_ACTIVE_LOW>;
+	vpcie-supply = <&reg_slot_pwr>;
+	status = "okay";
+};

-- 
2.34.1