From: Markus Stockhausen <markus.stockhausen@gmx.de>
Date: Thu, 18 Sep 2025 09:10:50 +0000 (-0400)
Subject: realtek: DTS: add macro for switch port with SerDes
X-Git-Url: http://git.openwrt.org/?a=commitdiff_plain;h=06c895f5d3a98669aa0f6ac3a06815474e57234d;p=openwrt%2Fstaging%2Fblocktrron.git

realtek: DTS: add macro for switch port with SerDes

In the future the PCS & DSA drivers will lookup the SerDes of a
switch port via pcs-handle (like upstream does). Provide a macro
that allows to expand the existing port definitions. To link a
SerDes to port simply do

Either in short form:

replace SWITCH_PORT(0, 1, qsgmii)
with    SWITCH_PORT_SDS(0, 1, 3, qsgmii) (Link to SerDes 3)

Or in long form:

port@24 {
	reg = <24>;
	label = "lan25";
	pcs-handle = <&serdes4>; (Link to SerDes 4)
	phy-handle = <&phy24>;
	phy-mode = "1000base-x";
	managed = "in-band-status";
	sfp = <&sfp0>;
};

Signed-off-by: Markus Stockhausen <markus.stockhausen@gmx.de>
Link: https://github.com/openwrt/openwrt/pull/20075
Signed-off-by: Robert Marko <robimarko@gmail.com>
---

diff --git a/target/linux/realtek/dts/macros.dtsi b/target/linux/realtek/dts/macros.dtsi
index b47b782669..fbdd3fbb1c 100644
--- a/target/linux/realtek/dts/macros.dtsi
+++ b/target/linux/realtek/dts/macros.dtsi
@@ -42,11 +42,20 @@
 		reg = <##n>; \
 	};
 
-#define SWITCH_PORT(n, s, m) \
-	port##n: port@##n { \
-		reg = <##n>; \
-		label = SWITCH_PORT_LABEL(s) ; \
-		phy-handle = <&phy##n>; \
+#define SWITCH_PORT(p, l, m) \
+	port##p: port@##p { \
+		reg = <##p>; \
+		label = SWITCH_PORT_LABEL(l) ; \
+		phy-handle = <&phy##p>; \
+		phy-mode = #m ; \
+	};
+
+#define SWITCH_PORT_SDS(p, l, s, m) \
+	port##p: port@##p { \
+		reg = <##p>; \
+		label = SWITCH_PORT_LABEL(l) ; \
+		pcs-handle = <&serdes##s>; \
+		phy-handle = <&phy##p>; \
 		phy-mode = #m ; \
 	};