Re: [PATCH net] xgene: Don't fail probe, if there is no clk resource for SGMII interfaces

From: Tom Bogendoerfer
Date: Thu Jul 27 2017 - 17:39:29 EST


On Thu, Jul 27, 2017 at 02:03:42PM -0700, Laura Abbott wrote:
> This change causes boot failures for me on my APM Mustang system running
> Fedora rawhide:
>
> [ 16.669089] Synchronous External Abort: synchronous external abort (0x9600000
> [ 16.669099] Internal error: : 96000010 [#1] SMP
> [ 16.669103] Modules linked in: xgene_enet(+) at803x realtek mdio_xgene xgenes
> [ 16.669127] CPU: 2 PID: 534 Comm: systemd-udevd Not tainted 4.13.0-0.rc1.git1
> [ 16.669128] Hardware name: AppliedMicro X-Gene Mustang Board/X-Gene Mustang 6
> [ 16.669131] task: ffff8003e6f8ce00 task.stack: ffff8003e4fd8000
> [ 16.669144] PC is at xgene_enet_wr_mac+0xa0/0x128 [xgene_enet]
> [ 16.669152] LR is at xgene_enet_wr_mac+0x64/0x128 [xgene_enet]

on the first glance I don't see anything clock related there.

What firmware version is installed on your mustang board ? I saw
ethernet related crashes with mustang boards because the device tree
in firmware was too old for the xgene ethernet driver.

Thoms.

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