[PATCH v2 2/5] arm64: dts: ls1028a: describe the Lynx 10G SerDes

Ioana Ciornei ioana.ciornei at nxp.com
Wed Jul 1 06:11:34 PDT 2026


From: Vladimir Oltean <vladimir.oltean at nxp.com>

Describe the Lynx 10G SerDes block and its 4 SerDes lanes found on the
LS1028A SoC. The node is left disabled at the SoC level; board DTs will
be expected to enable it once the consumer Ethernet nodes use it.

Signed-off-by: Vladimir Oltean <vladimir.oltean at nxp.com>
Signed-off-by: Ioana Ciornei <ioana.ciornei at nxp.com>
---
Changes in v2:
- Change the size of the region to 0x2000
---
 .../arm64/boot/dts/freescale/fsl-ls1028a.dtsi | 29 +++++++++++++++++++
 1 file changed, 29 insertions(+)

diff --git a/arch/arm64/boot/dts/freescale/fsl-ls1028a.dtsi b/arch/arm64/boot/dts/freescale/fsl-ls1028a.dtsi
index f4ba3d16ab86..ef62968590fa 100644
--- a/arch/arm64/boot/dts/freescale/fsl-ls1028a.dtsi
+++ b/arch/arm64/boot/dts/freescale/fsl-ls1028a.dtsi
@@ -250,6 +250,35 @@ ls1028a_uid: unique-id at 1c {
 			};
 		};
 
+		serdes: phy at 1ea0000 {
+			compatible = "fsl,ls1028a-serdes";
+			reg = <0x00 0x1ea0000 0x0 0x2000>;
+			#address-cells = <1>;
+			#size-cells = <0>;
+			#phy-cells = <1>;
+			status = "disabled";
+
+			serdes_lane_a: phy at 0 {
+				reg = <0>;
+				#phy-cells = <0>;
+			};
+
+			serdes_lane_b: phy at 1 {
+				reg = <1>;
+				#phy-cells = <0>;
+			};
+
+			serdes_lane_c: phy at 2 {
+				reg = <2>;
+				#phy-cells = <0>;
+			};
+
+			serdes_lane_d: phy at 3 {
+				reg = <3>;
+				#phy-cells = <0>;
+			};
+		};
+
 		scfg: syscon at 1fc0000 {
 			compatible = "fsl,ls1028a-scfg", "syscon";
 			reg = <0x0 0x1fc0000 0x0 0x10000>;
-- 
2.25.1




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