linux-kernel - [PATCH v3 09/10] arm64: dts: lx2160a-rdb: fully describe the two SFP+ cages

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Message-Id: <20250917090422.870033-10-ioana.ciornei@nxp.com>
Date: Wed, 17 Sep 2025 12:04:21 +0300
From: Ioana Ciornei <ioana.ciornei@....com>
To: Rob Herring <robh@...nel.org>,
	Krzysztof Kozlowski <krzk+dt@...nel.org>,
	Conor Dooley <conor+dt@...nel.org>,
	Linus Walleij <linus.walleij@...aro.org>,
	Bartosz Golaszewski <brgl@...ev.pl>,
	Shawn Guo <shawnguo@...nel.org>,
	Michael Walle <mwalle@...nel.org>,
	Lee Jones <lee@...nel.org>,
	devicetree@...r.kernel.org,
	linux-gpio@...r.kernel.org,
	linux-kernel@...r.kernel.org
Cc: Frank Li <Frank.Li@....com>
Subject: [PATCH v3 09/10] arm64: dts: lx2160a-rdb: fully describe the two SFP+ cages

Describe the two SFP+ cages found on the LX2160ARDB board with their
respective I2C buses and GPIO lines.

Signed-off-by: Ioana Ciornei <ioana.ciornei@....com>
---
Changes in v2:
- none
Changes in v3:
- Moved the reg property before address/cells-size.

 .../boot/dts/freescale/fsl-lx2160a-rdb.dts    | 47 +++++++++++++++++++
 1 file changed, 47 insertions(+)

diff --git a/arch/arm64/boot/dts/freescale/fsl-lx2160a-rdb.dts b/arch/arm64/boot/dts/freescale/fsl-lx2160a-rdb.dts
index 4ede1295f29d..1c1ed0c5f016 100644
--- a/arch/arm64/boot/dts/freescale/fsl-lx2160a-rdb.dts
+++ b/arch/arm64/boot/dts/freescale/fsl-lx2160a-rdb.dts
@@ -31,6 +31,28 @@ sb_3v3: regulator-sb3v3 {
 		regulator-boot-on;
 		regulator-always-on;
 	};
+
+	sfp2: sfp-2 {
+		compatible = "sff,sfp";
+		i2c-bus = <&sfp2_i2c>;
+		maximum-power-milliwatt = <2000>;
+		/* Leave commented out if using DPMAC_LINK_TYPE_FIXED mode */
+		/* tx-disable-gpios = <&sfp2_csr 0 GPIO_ACTIVE_HIGH>; */
+		los-gpios = <&sfp2_csr 4 GPIO_ACTIVE_HIGH>;
+		tx-fault-gpios = <&sfp2_csr 5 GPIO_ACTIVE_HIGH>;
+		mod-def0-gpios = <&sfp2_csr 7 GPIO_ACTIVE_LOW>;
+	};
+
+	sfp3: sfp-3 {
+		compatible = "sff,sfp";
+		i2c-bus = <&sfp3_i2c>;
+		maximum-power-milliwatt = <2000>;
+		/* Leave commented out if using DPMAC_LINK_TYPE_FIXED mode */
+		/* tx-disable-gpios = <&sfp3_csr 0 GPIO_ACTIVE_HIGH>; */
+		los-gpios = <&sfp3_csr 4 GPIO_ACTIVE_HIGH>;
+		tx-fault-gpios = <&sfp3_csr 5 GPIO_ACTIVE_HIGH>;
+		mod-def0-gpios = <&sfp3_csr 7 GPIO_ACTIVE_LOW>;
+	};
 };
 
 &crypto {
@@ -236,6 +258,31 @@ temperature-sensor@4d {
 				vcc-supply = <&sb_3v3>;
 			};
 		};
+
+		i2c@7 {
+			reg = <0x7>;
+			#address-cells = <1>;
+			#size-cells = <0>;
+
+			i2c-mux@75 {
+				compatible = "nxp,pca9547";
+				reg = <0x75>;
+				#address-cells = <1>;
+				#size-cells = <0>;
+
+				sfp2_i2c: i2c@4 {
+					reg = <0x4>;
+					#address-cells = <1>;
+					#size-cells = <0>;
+				};
+
+				sfp3_i2c: i2c@5 {
+					reg = <0x5>;
+					#address-cells = <1>;
+					#size-cells = <0>;
+				};
+			};
+		};
 	};
 };
 
-- 
2.25.1