ARM: dts: vf610-zii-dev-rev-b: correct phy-mode for 6185 dsa link
authorRussell King (Oracle) <rmk+kernel@armlinux.org.uk>
Wed, 20 Oct 2021 15:50:13 +0000 (16:50 +0100)
committerShawn Guo <shawnguo@kernel.org>
Sun, 21 Nov 2021 02:38:45 +0000 (10:38 +0800)
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) <rmk+kernel@armlinux.org.uk>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
arch/arm/boot/dts/vf610-zii-dev-rev-b.dts

index 043ddd7..80698e9 100644 (file)
                                                reg = <5>;
                                                label = "dsa";
                                                link = <&switch2port9>;
-                                               phy-mode = "rgmii-txid";
+                                               phy-mode = "1000base-x";
 
                                                fixed-link {
                                                        speed = <1000>;
                                        switch2port9: port@9 {
                                                reg = <9>;
                                                label = "dsa";
-                                               phy-mode = "rgmii-txid";
+                                               phy-mode = "1000base-x";
                                                link = <&switch1port5
                                                        &switch0port5>;