Thread (3 messages) flat view 3 messages, 3 authors, 2021-11-21
STALE1743d

[PATCH] ARM: dts: vf610-zii-dev-rev-b: correct phy-mode for 6185 dsa link

From: Russell King (Oracle) <hidden>
Date: 2021-10-20 15:50:35
Also in: linux-devicetree
Subsystem: the rest · Maintainer: Linus Torvalds

DT currently lists the port mode for the 88E6352 switch 1 to 88E6185
switch 2 as "rgmii-id" but referring to the schematics, it is in fact
a serdes link. The 88E6352 is configured with P5_MODE=6, S_SEL=1 and
S_MODE=1, which means port 5 is configured as 1000BASE-X.

This is confirmed by the value in the 88E6352 port 5 status register,
0x4e09, where C_MODE=9 meaning 1000BASE-X. It is also confirmed by
the 88E6185 port 9 status register, 0x5e8c, where C_MODE=4 meaning
cross-chip SERDES mode is selected.

Signed-off-by: Russell King (Oracle) <redacted>
---
 arch/arm/boot/dts/vf610-zii-dev-rev-b.dts | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/arch/arm/boot/dts/vf610-zii-dev-rev-b.dts b/arch/arm/boot/dts/vf610-zii-dev-rev-b.dts
index 39be99b3cf0d..a71316cdae02 100644
--- a/arch/arm/boot/dts/vf610-zii-dev-rev-b.dts
+++ b/arch/arm/boot/dts/vf610-zii-dev-rev-b.dts
@@ -155,7 +155,7 @@ switch1port5: port@5 {
 						reg = <5>;
 						label = "dsa";
 						link = <&switch2port9>;
-						phy-mode = "rgmii-txid";
+						phy-mode = "1000base-x";
 
 						fixed-link {
 							speed = <1000>;
@@ -242,7 +242,7 @@ port@4 {
 					switch2port9: port@9 {
 						reg = <9>;
 						label = "dsa";
-						phy-mode = "rgmii-txid";
+						phy-mode = "1000base-x";
 						link = <&switch1port5
 							&switch0port5>;
 
-- 
2.30.2


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