ARM: dts: BCM5301X: Explicitly disable unused switch CPU ports

When redescribing ports I assumed that missing "label" (like "cpu")
means switch port isn't used. That was incorrect and I realized my
change made Linux always use the first (5) CPU port (there are 3 of
them).

While above should technically be possible it often isn't correct:
1. Non-default switch ports are often connected to Ethernet interfaces
   not fully covered by vendor setup (they may miss MACs)
2. On some devices non-default ports require specifying fixed link

This fixes network connectivity for some devices. It was reported &
tested for Netgear R8000. It also affects Linksys EA9200 with its
downstream DTS.

Fixes: ba4aebce23b2 ("ARM: dts: BCM5301X: Describe switch ports in the main DTS")
Signed-off-by: Rafał Miłecki <rafal@milecki.pl>
Link: https://lore.kernel.org/r/20231013103314.10306-1-zajec5@gmail.com
Signed-off-by: Florian Fainelli <florian.fainelli@broadcom.com>

1 files changed, 8 insertions, 0 deletions

diff --git a/arch/arm/boot/dts/broadcom/bcm47094-luxul-xwr-3100.dts b/arch/arm/boot/dts/broadcom/bcm47094-luxul-xwr-3100.dts
index ccf031c0e276..4d0ba315a204 100644
--- a/arch/arm/boot/dts/broadcom/bcm47094-luxul-xwr-3100.dts
+++ b/arch/arm/boot/dts/broadcom/bcm47094-luxul-xwr-3100.dts
@@ -147,5 +147,13 @@
 		port@5 {
 			label = "cpu";
 		};
+
+		port@7 {
+			status = "disabled";
+		};
+
+		port@8 {
+			status = "disabled";
+		};
 	};
 };