2021-07-02 20:14:22

by Michael Walle

Subject: [PATCH] arm64: dts: ls1028: sl28: fix networking for variant 2

The PHY configuration for the variant 2 is still missing the flag for
in-band signalling between PHY and MAC. Both sides - MAC and PHY - have
to match the setting. For now, Linux only supports setting the MAC side
and thus it has to match the setting the bootloader is configuring.
Enable in-band signalling to make ethernet work.

Fixes: ab43f0307449 ("arm64: dts: ls1028a: sl28: add support for variant 2")
Signed-off-by: Michael Walle <[email protected]>
---
What make things worse and why this might slipped through is that the
setting in the PHY is persistent even after a soft reset of the PHY.

arch/arm64/boot/dts/freescale/fsl-ls1028a-kontron-sl28-var2.dts | 2 ++
1 file changed, 2 insertions(+)

diff --git a/arch/arm64/boot/dts/freescale/fsl-ls1028a-kontron-sl28-var2.dts b/arch/arm64/boot/dts/freescale/fsl-ls1028a-kontron-sl28-var2.dts
index dd764b720fb0..f6a79c8080d1 100644
--- a/arch/arm64/boot/dts/freescale/fsl-ls1028a-kontron-sl28-var2.dts
+++ b/arch/arm64/boot/dts/freescale/fsl-ls1028a-kontron-sl28-var2.dts
@@ -54,6 +54,7 @@

&mscc_felix_port0 {
label = "swp0";
+ managed = "in-band-status";
phy-handle = <&phy0>;
phy-mode = "sgmii";
status = "okay";
@@ -61,6 +62,7 @@

&mscc_felix_port1 {
label = "swp1";
+ managed = "in-band-status";
phy-handle = <&phy1>;
phy-mode = "sgmii";
status = "okay";
--
2.20.1

2021-07-23 02:43:15

by Shawn Guo

Subject: Re: [PATCH] arm64: dts: ls1028: sl28: fix networking for variant 2

On Fri, Jul 02, 2021 at 09:49:14PM +0200, Michael Walle wrote:
> The PHY configuration for the variant 2 is still missing the flag for
> in-band signalling between PHY and MAC. Both sides - MAC and PHY - have
> to match the setting. For now, Linux only supports setting the MAC side
> and thus it has to match the setting the bootloader is configuring.
> Enable in-band signalling to make ethernet work.
>
> Fixes: ab43f0307449 ("arm64: dts: ls1028a: sl28: add support for variant 2")
> Signed-off-by: Michael Walle <[email protected]>

Applied, thanks!