[PATCH 5.7 064/179] arm64: dts: clearfog-gt-8k: fix switch link configuration

From: Greg Kroah-Hartman
Date: Mon Jul 27 2020 - 10:21:27 EST

From: Russell King <rmk+kernel@xxxxxxxxxxxxxxx>

[ Upstream commit 7c6719a1aaca51ffd7cdf3905e70aa8313f6ef26 ]

The commit below caused a regression for clearfog-gt-8k, where the link
between the switch and the host does not come up.

Investigation revealed two issues:
- MV88E6xxx DSA no longer allows an in-band link to come up as the link
is programmed to be forced down. Commit "net: dsa: mv88e6xxx: fix
in-band AN link establishment" addresses this.

- The dts configured dissimilar link modes at each end of the host to
switch link; the host was configured using a fixed link (so has no
in-band status) and the switch was configured to expect in-band

With both issues fixed, the regression is resolved.

Fixes: 34b5e6a33c1a ("net: dsa: mv88e6xxx: Configure MAC when using fixed link")
Reported-by: Martin Rowe <martin.p.rowe@xxxxxxxxx>
Signed-off-by: Russell King <rmk+kernel@xxxxxxxxxxxxxxx>
Reviewed-by: Andrew Lunn <andrew@xxxxxxx>
Signed-off-by: David S. Miller <davem@xxxxxxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
arch/arm64/boot/dts/marvell/armada-8040-clearfog-gt-8k.dts | 5 +----
1 file changed, 1 insertion(+), 4 deletions(-)

diff --git a/arch/arm64/boot/dts/marvell/armada-8040-clearfog-gt-8k.dts b/arch/arm64/boot/dts/marvell/armada-8040-clearfog-gt-8k.dts
index b90d78a5724b2..e32a491e909f1 100644
--- a/arch/arm64/boot/dts/marvell/armada-8040-clearfog-gt-8k.dts
+++ b/arch/arm64/boot/dts/marvell/armada-8040-clearfog-gt-8k.dts
@@ -454,10 +454,7 @@
status = "okay";
phy-mode = "2500base-x";
phys = <&cp1_comphy5 2>;
- fixed-link {
- speed = <2500>;
- full-duplex;
- };
+ managed = "in-band-status";

&cp1_spi1 {