Add Sparx5 serdes driver node, and enable it generally for all
reference boards.

Signed-off-by: Lars Povlsen <lars.povl...@microchip.com>
Signed-off-by: Steen Hegelund <steen.hegel...@microchip.com>
Reviewed-by: Andrew Lunn <and...@lunn.ch>
Reviewed-by: Alexandre Belloni <alexandre.bell...@bootlin.com>
---
 arch/arm64/boot/dts/microchip/sparx5.dtsi | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/arch/arm64/boot/dts/microchip/sparx5.dtsi 
b/arch/arm64/boot/dts/microchip/sparx5.dtsi
index 380281f312d8..29c606194bc7 100644
--- a/arch/arm64/boot/dts/microchip/sparx5.dtsi
+++ b/arch/arm64/boot/dts/microchip/sparx5.dtsi
@@ -383,5 +383,13 @@ tmon0: tmon@610508110 {
                        #thermal-sensor-cells = <0>;
                        clocks = <&ahb_clk>;
                };
+
+               serdes: serdes@10808000 {
+                       compatible = "microchip,sparx5-serdes";
+                       #phy-cells = <1>;
+                       clocks = <&sys_clk>;
+                       reg = <0x6 0x10808000 0x5d0000>;
+               };
+
        };
 };
-- 
2.30.0

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