Re: [BISECTED, REGRESSION] Broken networking on MIPS/OCTEON EdgeRouter Lite

From: Vinod Koul
Date: Fri Mar 22 2019 - 02:45:14 EST


On 22-03-19, 02:21, Aaro Koskinen wrote:
> Hi,
>
> When booting v5.1-rc1 on EdgeRouter Lite (MIPS/OCTEON), with at803x phy
> driver enabled, networking no longer works - I even need to go physically
> power cycle the board before getting networking to work again (otherwise
> bootloader cannot tftp an older working image).
>
> Bisected to:
>
> commit 6d4cd041f0af5b4c8fc742b4a68eac22e420e28c
> Author: Vinod Koul <vkoul@xxxxxxxxxx>
> Date: Thu Feb 21 15:53:15 2019 +0530
>
> net: phy: at803x: disable delay only for RGMII mode

Hello,

So with cd28d1d6e52e ("net: phy: at803x: Disable phy delay for RGMII
mode") it works for you but not 6d4cd041f0af ("net: phy: at803x: disable
delay only for RGMII mode"). That is bit more weird case :)

So does the ethernet expect RGMII mode or RGMII_ID mode here, looks like
disable delay is expected as well?

Can you point me to the DT node as well..

> Booting v5.1-rc1 with this commit reverted makes networking to work
> fine again.

--
~Vinod