[PATCH v3 0/3] arm64: dts: freescale: add Free Mobile Nodebox v3 CPU Module (LX2160A)

[PATCH v3 0/3] arm64: dts: freescale: add Free Mobile Nodebox v3 CPU Module (LX2160A)

[Vincent Jardin via B4 Relay]

The Nodebox v3 is a Free Mobile CPU module built around the NXP LX2160A
(16x Cortex-A72, DPAA2).

The same fsl-lx2160a-nbxv3.dtsi shall be used verbatim by the
U-Boot port, sent in parallel to the U-Boot list, so the two trees
cannot drift.

Dependency:

the DTS uses gpio hogs on the QorIQ GPIO controllers, which
needs the commit
  78c0baf85cd0 ("dt-bindings: gpio: fsl,qoriq-gpio: allow gpio-hog child nodes")
already in gpio/for-next and that will likely arrive in v7.4-rc1.
Until it lands, dtbs_check reports the five hog nodes, the rest of the
tree validates clean against the current schemas.

Signed-off-by: Vincent Jardin <vjardin@free.fr>
---
Changes in v3:
- Drop the thermtrip hog on gpio1 line 23, should have been clean'd
  before
- Link to v2: https://lore.kernel.org/r/20260907-for-upstream-nbxv3-dts-v2-0-6b4afd36180b@free.fr

Changes in v2: (from Sashiko's comments)
- Makefile: dtb entry in alphabetical order (before qds).
- Move the XSPI1_A_DATA[7:4] GPIO mux group from &fspi to &gpio1, so
  the reset hogs on gpio1 do not depend on the fspi probe.
- gpio hogs: describe ethsw-reset# and ethsw-mdio-en with their
  active-low polarity (GPIO_ACTIVE_LOW), same electrical levels.
- Link to v1: https://lore.kernel.org/r/20260907-for-upstream-nbxv3-dts-v1-0-f43fd0028b78@free.fr

---
Vincent Jardin (3):
      dt-bindings: vendor-prefixes: add Free Mobile
      dt-bindings: arm: fsl: add freemobile,nbxv3 board
      arm64: dts: freescale: add Nodebox v3 CPU Module

 Documentation/devicetree/bindings/arm/fsl.yaml     |   6 +
 .../devicetree/bindings/vendor-prefixes.yaml       |   2 +
 arch/arm64/boot/dts/freescale/Makefile             |   2 +
 .../arm64/boot/dts/freescale/fsl-lx2160a-nbxv3.dts |  34 +++
 .../boot/dts/freescale/fsl-lx2160a-nbxv3.dtsi      | 335 +++++++++++++++++++++
 5 files changed, 379 insertions(+)
---
base-commit: df2908090cda368b01ff43709f51890076c56157
change-id: 20260907-for-upstream-nbxv3-dts-bbecd04038a2

Best regards,
-- 
Vincent Jardin <vjardin@free.fr>

[PATCH v3 1/3] dt-bindings: vendor-prefixes: add Free Mobile

[Vincent Jardin via B4 Relay]

From: Vincent Jardin <vjardin@free.fr>

Free Mobile is a French mobile network operator. Add its vendor
prefix, used by the Nodebox v3 CPU Module (freemobile,nbxv3).

Signed-off-by: Vincent Jardin <vjardin@free.fr>
---
 Documentation/devicetree/bindings/vendor-prefixes.yaml | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/Documentation/devicetree/bindings/vendor-prefixes.yaml b/Documentation/devicetree/bindings/vendor-prefixes.yaml
index ba20029693734..e467da45cd7ac 100644
--- a/Documentation/devicetree/bindings/vendor-prefixes.yaml
+++ b/Documentation/devicetree/bindings/vendor-prefixes.yaml
@@ -626,6 +626,8 @@ patternProperties:
     description: Freebox SAS
   "^freecom,.*":
     description: Freecom Gmbh
+  "^freemobile,.*":
+    description: Free Mobile
   "^frida,.*":
     description: Shenzhen Frida LCD Co., Ltd.
   "^friendlyarm,.*":

-- 
2.43.0

[PATCH v3 2/3] dt-bindings: arm: fsl: add freemobile,nbxv3 board

[Vincent Jardin via B4 Relay]

From: Vincent Jardin <vjardin@free.fr>

Add the Free Mobile Nodebox v3 CPU module to the list of
NXP, former Freescale, LX2160A-based boards.

The board's root is:
  "freemobile,nbxv3", "fsl,lx2160a"
and the DTS is at
  arch/arm64/boot/dts/freescale/fsl-lx2160a-nbxv3.dts.

It is needed for
  make CHECK_DTBS=y

Signed-off-by: Vincent Jardin <vjardin@free.fr>
---
 Documentation/devicetree/bindings/arm/fsl.yaml | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/Documentation/devicetree/bindings/arm/fsl.yaml b/Documentation/devicetree/bindings/arm/fsl.yaml
index 656f2596e1d53..baff4f4159b29 100644
--- a/Documentation/devicetree/bindings/arm/fsl.yaml
+++ b/Documentation/devicetree/bindings/arm/fsl.yaml
@@ -1937,6 +1937,12 @@ properties:
               - fsl,lx2162a-qds
           - const: fsl,lx2160a
 
+      - description: Free Mobile LX2160A based Boards
+        items:
+          - enum:
+              - freemobile,nbxv3
+          - const: fsl,lx2160a
+
       - description: SolidRun LX2160A CEX-7 based Boards
         items:
           - enum:

-- 
2.43.0

[PATCH v3 3/3] arm64: dts: freescale: add Nodebox v3 CPU Module

[Vincent Jardin via B4 Relay]

From: Vincent Jardin <vjardin@free.fr>

The Nodebox v3 is a Free Mobile CPU module built around the NXP
LX2160A (16x Cortex-A72, DPAA2).

The same .dtsi is used by the U-Boot port, so both Linux and
u-boot should not drift.

Signed-off-by: Vincent Jardin <vjardin@free.fr>
---
 arch/arm64/boot/dts/freescale/Makefile             |   2 +
 .../arm64/boot/dts/freescale/fsl-lx2160a-nbxv3.dts |  34 +++
 .../boot/dts/freescale/fsl-lx2160a-nbxv3.dtsi      | 335 +++++++++++++++++++++
 3 files changed, 371 insertions(+)

diff --git a/arch/arm64/boot/dts/freescale/Makefile b/arch/arm64/boot/dts/freescale/Makefile
index 95ae85ab4adf5..faab8bf0e1676 100644
--- a/arch/arm64/boot/dts/freescale/Makefile
+++ b/arch/arm64/boot/dts/freescale/Makefile
@@ -55,6 +55,8 @@ DTC_FLAGS_fsl-lx2160a-half-twins := -Wno-interrupt_map
 dtb-$(CONFIG_ARCH_LAYERSCAPE) += fsl-lx2160a-half-twins.dtb
 DTC_FLAGS_fsl-lx2160a-honeycomb := -Wno-interrupt_map
 dtb-$(CONFIG_ARCH_LAYERSCAPE) += fsl-lx2160a-honeycomb.dtb
+DTC_FLAGS_fsl-lx2160a-nbxv3 := -Wno-interrupt_map
+dtb-$(CONFIG_ARCH_LAYERSCAPE) += fsl-lx2160a-nbxv3.dtb
 DTC_FLAGS_fsl-lx2160a-qds := -Wno-interrupt_map
 dtb-$(CONFIG_ARCH_LAYERSCAPE) += fsl-lx2160a-qds.dtb
 DTC_FLAGS_fsl-lx2160a-rdb := -Wno-interrupt_map
diff --git a/arch/arm64/boot/dts/freescale/fsl-lx2160a-nbxv3.dts b/arch/arm64/boot/dts/freescale/fsl-lx2160a-nbxv3.dts
new file mode 100644
index 0000000000000..b07e9def0a529
--- /dev/null
+++ b/arch/arm64/boot/dts/freescale/fsl-lx2160a-nbxv3.dts
@@ -0,0 +1,34 @@
+// SPDX-License-Identifier: (GPL-2.0+ OR MIT)
+/*
+ * Free Mobile Nodebox v3 CPU Module (LX2160A)
+ *
+ * Copyright 2026 Free Mobile, Vincent Jardin
+ */
+
+/dts-v1/;
+
+#include "fsl-lx2160a-rev2.dtsi"
+#include "fsl-lx2160a-nbxv3.dtsi"
+
+/ {
+	model = "Free Mobile Nodebox v3 CPU Module (LX2160A)";
+	compatible = "freemobile,nbxv3", "fsl,lx2160a";
+};
+
+&fspi {
+	pinctrl-names = "default";
+	pinctrl-0 = <&fspi_dqs_sck_cs10_pins>, <&fspi_data30_pins>;
+};
+
+&gpio1 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&gpio1_31_28_pins>;
+};
+
+&pcs_mdio13 {
+	status = "okay";
+};
+
+&pcs_mdio14 {
+	status = "okay";
+};
diff --git a/arch/arm64/boot/dts/freescale/fsl-lx2160a-nbxv3.dtsi b/arch/arm64/boot/dts/freescale/fsl-lx2160a-nbxv3.dtsi
new file mode 100644
index 0000000000000..807699d266e5f
--- /dev/null
+++ b/arch/arm64/boot/dts/freescale/fsl-lx2160a-nbxv3.dtsi
@@ -0,0 +1,335 @@
+// SPDX-License-Identifier: (GPL-2.0+ OR MIT)
+/*
+ * Free Mobile Nodebox v3 CPU Module (LX2160A)
+ *
+ * Copyright 2026 Free Mobile, Vincent Jardin
+ *
+ * This file is shared by the Linux kernel and U-Boot.
+ */
+
+#include <dt-bindings/gpio/gpio.h>
+#include <dt-bindings/interrupt-controller/irq.h>
+
+/ {
+	aliases {
+		serial0 = &uart0;
+	};
+
+	chosen {
+		stdout-path = "serial0:115200n8";
+	};
+
+	gpio-restart {
+		compatible = "gpio-restart";
+		gpios = <&gpio1 8 GPIO_ACTIVE_LOW>;
+		priority = <128>;
+	};
+};
+
+&crypto {
+	status = "okay";
+};
+
+&dspi0 {
+	status = "okay";
+
+	dpll@0 {
+		compatible = "microchip,zl30733";
+		reg = <0>;
+		spi-max-frequency = <12500000>;
+	};
+};
+
+&dspi2 {
+	status = "okay";
+};
+
+&dpmac13 {
+	status = "okay";
+	phy-handle = <&lan8023_phy_s0>;
+	phy-connection-type = "10gbase-r";
+};
+
+&dpmac14 {
+	status = "okay";
+	phy-handle = <&lan8023_phy_s1>;
+	phy-connection-type = "10gbase-r";
+};
+
+&dpmac17 {
+	status = "okay";
+	phy-handle = <&rtl8211fd>;
+	phy-connection-type = "rgmii-id";
+};
+
+&emdio1 {
+	status = "okay";
+
+	/* Microchip LAN8023 dual 10G PCS/retimer, Clause 45 only, one address per slice */
+	lan8023_phy_s0: ethernet-phy@2 {
+		compatible = "ethernet-phy-ieee802.3-c45";
+		reg = <2>;
+	};
+
+	lan8023_phy_s1: ethernet-phy@3 {
+		compatible = "ethernet-phy-ieee802.3-c45";
+		reg = <3>;
+	};
+
+	rtl8211fd: ethernet-phy@6 {
+		compatible = "ethernet-phy-id001c.c916";
+		reg = <6>;
+	};
+};
+
+&emdio2 {
+	status = "okay";
+};
+
+&esdhc1 {
+	status = "okay";
+	bus-width = <8>;
+	non-removable;
+	mmc-hs200-1_8v;
+	mmc-hs400-1_8v;
+};
+
+&fspi {
+	status = "okay";
+
+	/* GigaDevice GD55LB02GF, 256 MiB boot NOR */
+	flash@0 {
+		compatible = "jedec,spi-nor";
+		reg = <0>;
+		#address-cells = <1>;
+		#size-cells = <1>;
+		spi-max-frequency = <150000000>;
+		spi-rx-bus-width = <1>;
+		spi-tx-bus-width = <1>;
+	};
+};
+
+&fsl_mc {
+	status = "okay";
+};
+
+&gpio0 {
+	status = "okay";
+	gpio-line-names =
+		"", "",
+		"altfn:iic1-sda", "altfn:iic1-scl",
+		"altfn:uart4-sin", "altfn:uart4-sout",
+		"altfn:uart2-sin", "altfn:uart2-sout",
+		"altfn:uart3-sin", "altfn:uart3-sout",
+		"altfn:uart1-sin", "altfn:uart1-sout",
+		"altfn:spi3-pcs3", "altfn:spi3-pcs2",
+		"altfn:spi3-pcs1", "altfn:spi3-pcs0",
+		"altfn:spi1-sck", "altfn:spi1-sin",
+		"altfn:spi1-pcs2", "altfn:spi1-pcs1",
+		"altfn:spi1-pcs0", "altfn:spi1-sout",
+		"altfn:iic6-sda", "altfn:iic6-scl",
+		"altfn:spi3-sin", "altfn:spi3-sout",
+		"altfn:iic4-sda", "altfn:iic4-scl",
+		"altfn:iic3-sda", "altfn:iic3-scl",
+		"altfn:iic2-sda", "altfn:iic2-scl";
+};
+
+&gpio1 {
+	status = "okay";
+	gpio-line-names =
+		"", "", "", "", "", "",
+		"cfg-rcw-src2", "cfg-rcw-src3",
+		"reset-req-b",
+		"altfn:sdhc2-clk", "altfn:sdhc2-ds",
+		"altfn:sdhc2-dat0", "altfn:sdhc2-dat1",
+		"altfn:sdhc2-dat2", "altfn:sdhc2-dat3",
+		"altfn:sdhc2-dat4", "altfn:sdhc2-dat5",
+		"altfn:sdhc2-dat6", "altfn:sdhc2-dat7",
+		"altfn:sdhc2-cmd",
+		"cfg-svr1",
+		"altfn:xspi1-cs0", "altfn:xspi1-sck",
+		"altfn:xspi1-dqs",
+		"altfn:xspi1-data0", "altfn:xspi1-data1",
+		"", "",
+		"flash-reset#", "pltrst#", "", "ethsw-reset#";
+
+	pltrst-hog {
+		gpio-hog;
+		gpios = <29 GPIO_ACTIVE_LOW>;
+		output-low;
+		line-name = "pltrst#";
+	};
+
+	/* Boot NOR reset, released: electrical high */
+	flash-reset-hog {
+		gpio-hog;
+		gpios = <28 GPIO_ACTIVE_LOW>;
+		output-low;
+		line-name = "flash-reset#";
+	};
+
+	/* Ethernet switch reset, released: electrical high */
+	ethsw-reset-hog {
+		gpio-hog;
+		gpios = <31 GPIO_ACTIVE_LOW>;
+		output-low;
+		line-name = "ethsw-reset#";
+	};
+};
+
+&gpio2 {
+	status = "okay";
+	gpio-line-names =
+		"lan8023-mdint",
+		"i2c2-alert#", "i2c4-alert#", "i2c6-alert#",
+		"u800-tca9539-int#",
+		"spi3-alert#",
+		"wake0", "wake1",
+		"carrier-hot#",
+		"u1300-rtl8211fd-int#",
+		"ethsw-int#",
+		"", "",
+		"u1700-zl30733-clk-gpio0", "u1700-zl30733-clk-gpio1",
+		"u1700-zl30733-clk-gpio2", "u1700-zl30733-clk-gpio3",
+		"", "", "", "", "", "", "", "",
+		"", "", "", "", "", "", "";
+};
+
+&gpio3 {
+	status = "okay";
+	gpio-line-names =
+		"altfn:ec1-txd3", "altfn:ec1-txd2",
+		"altfn:ec1-txd1", "altfn:ec1-txd0",
+		"altfn:ec1-tx-en", "altfn:ec1-gtx-clk",
+		"altfn:ec1-rxd3", "altfn:ec1-rxd2",
+		"altfn:ec1-rxd1", "altfn:ec1-rxd0",
+		"altfn:ec1-rx-clk", "altfn:ec1-rx-dv",
+		"", "",
+		"ptp-refclk-in",
+		"", "", "", "", "", "", "", "",
+		"u1700-zl30733-pps-out",
+		"",
+		"ethsw-mdio-en",
+		"usb01-oc#",	/* USB1_PWRFAULT and USB2_PWRFAULT share one net */
+		"",
+		"usb01-oc#",
+		"altfn:spi3-sck",
+		"", "";
+
+	/* Low enables the carrier-side EMDIO2 level translator */
+	ethsw-mdio-en-hog {
+		gpio-hog;
+		gpios = <25 GPIO_ACTIVE_LOW>;
+		output-high;
+		line-name = "ethsw-mdio-en";
+	};
+};
+
+/* On-module management bus */
+&i2c0 {
+	status = "okay";
+
+	eeprom@52 {
+		compatible = "atmel,24c32";
+		reg = <0x52>;
+		pagesize = <32>;
+	};
+
+	/* Board ID straps */
+	gpio@74 {
+		compatible = "ti,tca9539";
+		reg = <0x74>;
+		gpio-controller;
+		#gpio-cells = <2>;
+		gpio-line-names =
+			"boardid-0x0001", "boardid-0x0002",
+			"boardid-0x0004", "boardid-0x0008",
+			"boardid-0x0010", "boardid-0x0020",
+			"boardid-0x0040", "boardid-0x0080",
+			"boardid-0x0100", "boardid-0x0200",
+			"boardid-0x0400", "boardid-0x0800",
+			"boardid-0x1000", "boardid-0x2000",
+			"boardid-0x4000", "boardid-0x8000";
+	};
+
+	u800: gpio@75 {
+		compatible = "ti,tca9539";
+		reg = <0x75>;
+		gpio-controller;
+		#gpio-cells = <2>;
+		interrupt-controller;
+		#interrupt-cells = <2>;
+		interrupt-parent = <&gpio2>;
+		interrupts = <4 IRQ_TYPE_LEVEL_LOW>;
+		gpio-line-names =
+			"carrier-gpio0", "carrier-gpio1",
+			"carrier-gpio2", "carrier-gpio3",
+			"carrier-gpio4", "carrier-gpio5",
+			"carrier-gpio6", "carrier-gpio7",
+			"carrier-gpio8", "carrier-gpio9",
+			"carrier-gpio10", "carrier-gpio11",
+			"", "", "",
+			"lan8023-rst";
+	};
+
+	/* +0V8_VDD core rail, MPS MPQ8646 (MPQ8785 core) over PMBus */
+	vdd08: regulator@10 {
+		compatible = "mps,mpq8646";
+		reg = <0x10>;
+	};
+
+	/* SO-DIMM SPD temperature sensors */
+	temperature-sensor@18 {
+		compatible = "jedec,jc-42.4-temp";
+		reg = <0x18>;
+	};
+
+	temperature-sensor@19 {
+		compatible = "jedec,jc-42.4-temp";
+		reg = <0x19>;
+	};
+};
+
+&i2c1 {
+	status = "okay";
+};
+
+&i2c2 {
+	status = "okay";
+};
+
+&i2c3 {
+	status = "okay";
+};
+
+&i2c5 {
+	status = "okay";
+};
+
+&pcie3 {
+	status = "okay";
+};
+
+&pcie4 {
+	status = "okay";
+};
+
+&pcie5 {
+	status = "okay";
+};
+
+&pcie6 {
+	status = "okay";
+};
+
+&uart0 {
+	status = "okay";
+};
+
+&usb0 {
+	status = "okay";
+};
+
+&usb1 {
+	status = "okay";
+};

-- 
2.43.0

Re: [PATCH v3 2/3] dt-bindings: arm: fsl: add freemobile,nbxv3 board

[Krzysztof Kozlowski]

On Tue, Sep 08, 2026 at 04:12:44AM +0200, Vincent Jardin wrote:
> Add the Free Mobile Nodebox v3 CPU module to the list of
> NXP, former Freescale, LX2160A-based boards.
> 
> The board's root is:
>   "freemobile,nbxv3", "fsl,lx2160a"
> and the DTS is at
>   arch/arm64/boot/dts/freescale/fsl-lx2160a-nbxv3.dts.

This paragraph is irrelevant.

> 
> It is needed for
>   make CHECK_DTBS=y

So is this. Also not really correct, ABI needs to be documented
regardless.

Please use `git log` to understand how such commits can be written.

Best regards,
Krzysztof

Re: [PATCH v3 1/3] dt-bindings: vendor-prefixes: add Free Mobile

[Krzysztof Kozlowski]

On Tue, Sep 08, 2026 at 04:12:43AM +0200, Vincent Jardin wrote:
> Free Mobile is a French mobile network operator. Add its vendor
> prefix, used by the Nodebox v3 CPU Module (freemobile,nbxv3).
> 
> Signed-off-by: Vincent Jardin <vjardin@free.fr>
> ---
>  Documentation/devicetree/bindings/vendor-prefixes.yaml | 2 ++
>  1 file changed, 2 insertions(+)

Acked-by: Krzysztof Kozlowski <krzysztof.kozlowski@oss.qualcomm.com>

Best regards,
Krzysztof

Re: [PATCH v3 3/3] arm64: dts: freescale: add Nodebox v3 CPU Module

[Frank Li]

On Tue, Sep 08, 2026 at 04:12:45AM +0200, Vincent Jardin via B4 Relay wrote:
> From: Vincent Jardin <vjardin@free.fr>
>
> The Nodebox v3 is a Free Mobile CPU module built around the NXP
> LX2160A (16x Cortex-A72, DPAA2).
>
> The same .dtsi is used by the U-Boot port, so both Linux and
> u-boot should not drift.

Needn't this paragraph.

>
> Signed-off-by: Vincent Jardin <vjardin@free.fr>
> ---
>  arch/arm64/boot/dts/freescale/Makefile             |   2 +
>  .../arm64/boot/dts/freescale/fsl-lx2160a-nbxv3.dts |  34 +++
>  .../boot/dts/freescale/fsl-lx2160a-nbxv3.dtsi      | 335 +++++++++++++++++++++
>  3 files changed, 371 insertions(+)
>
...
> +
> +&gpio1 {
> +	status = "okay";
> +	gpio-line-names =
> +		"", "", "", "", "", "",
> +		"cfg-rcw-src2", "cfg-rcw-src3",
> +		"reset-req-b",
> +		"altfn:sdhc2-clk", "altfn:sdhc2-ds",
> +		"altfn:sdhc2-dat0", "altfn:sdhc2-dat1",
> +		"altfn:sdhc2-dat2", "altfn:sdhc2-dat3",
> +		"altfn:sdhc2-dat4", "altfn:sdhc2-dat5",
> +		"altfn:sdhc2-dat6", "altfn:sdhc2-dat7",
> +		"altfn:sdhc2-cmd",
> +		"cfg-svr1",
> +		"altfn:xspi1-cs0", "altfn:xspi1-sck",
> +		"altfn:xspi1-dqs",
> +		"altfn:xspi1-data0", "altfn:xspi1-data1",
> +		"", "",
> +		"flash-reset#", "pltrst#", "", "ethsw-reset#";
> +
> +	pltrst-hog {
> +		gpio-hog;
> +		gpios = <29 GPIO_ACTIVE_LOW>;
> +		output-low;
> +		line-name = "pltrst#";
> +	};
> +
> +	/* Boot NOR reset, released: electrical high */
> +	flash-reset-hog {
> +		gpio-hog;
> +		gpios = <28 GPIO_ACTIVE_LOW>;
> +		output-low;
> +		line-name = "flash-reset#";
> +	};
> +
> +	/* Ethernet switch reset, released: electrical high */
> +	ethsw-reset-hog {
> +		gpio-hog;
> +		gpios = <31 GPIO_ACTIVE_LOW>;
> +		output-low;
> +		line-name = "ethsw-reset#";
> +	};

Does related devices have "reset" property to descript reset?

> +};
> +
> +&gpio2 {
> +	status = "okay";
> +	gpio-line-names =
> +		"lan8023-mdint",
> +		"i2c2-alert#", "i2c4-alert#", "i2c6-alert#",
> +		"u800-tca9539-int#",
> +		"spi3-alert#",
> +		"wake0", "wake1",
> +		"carrier-hot#",
> +		"u1300-rtl8211fd-int#",
> +		"ethsw-int#",
> +		"", "",
> +		"u1700-zl30733-clk-gpio0", "u1700-zl30733-clk-gpio1",
> +		"u1700-zl30733-clk-gpio2", "u1700-zl30733-clk-gpio3",
> +		"", "", "", "", "", "", "", "",
> +		"", "", "", "", "", "", "";
> +};
> +
> +&gpio3 {
> +	status = "okay";
> +	gpio-line-names =
> +		"altfn:ec1-txd3", "altfn:ec1-txd2",
> +		"altfn:ec1-txd1", "altfn:ec1-txd0",
> +		"altfn:ec1-tx-en", "altfn:ec1-gtx-clk",
> +		"altfn:ec1-rxd3", "altfn:ec1-rxd2",
> +		"altfn:ec1-rxd1", "altfn:ec1-rxd0",
> +		"altfn:ec1-rx-clk", "altfn:ec1-rx-dv",
> +		"", "",
> +		"ptp-refclk-in",
> +		"", "", "", "", "", "", "", "",
> +		"u1700-zl30733-pps-out",
> +		"",
> +		"ethsw-mdio-en",
> +		"usb01-oc#",	/* USB1_PWRFAULT and USB2_PWRFAULT share one net */
> +		"",
> +		"usb01-oc#",
> +		"altfn:spi3-sck",
> +		"", "";
> +
> +	/* Low enables the carrier-side EMDIO2 level translator */
> +	ethsw-mdio-en-hog {
> +		gpio-hog;
> +		gpios = <25 GPIO_ACTIVE_LOW>;
> +		output-high;
> +		line-name = "ethsw-mdio-en";

The same here, most EN module as regualtor.

Frank