[meta-freescale] imx6q: force 100 mbps network

[Prasant J]

On Wed, Feb 26, 2014 at 5:59 PM, Prasant J <pj0585 at gmail.com> wrote:

>
>
> On Wed, Feb 26, 2014 at 5:37 PM, Gary Thomas <gary at mlbassoc.com> wrote:
>
>> On 2014-02-26 05:03, Prasant J wrote:
>> > Hi,
>> >
>> > I'm using linux-3.0.35 on my custom hardware (uses imx6 quad) based on
>> sabresd platform. I'm using yocto root filesystem (this is a soft float
>> build).
>> >
>> > I want to force my system to use 100 mbps ethernet speed even if the
>> network supports 1000 mbps link. How can I enable this ?
>> >
>> > My custom hardware uses Micrel's Gigabit Ethernet PHY KSZ9021RNI.
>> >
>> > I can change the network speed (by ssh-ing into the linux system) using:
>> > ethtool -s eth0 autoneg off speed 100
>> > but I want network speed of 100 mbps when network is initialized during
>> startup.
>> >
>> > Any inputs will be of help.
>>
>> If you are using init-ifupdown to manage the network, you can
>> change /etc/network/interfaces to look something like this:
>>
>> auto eth0
>> iface eth0 inet dhcp
>>       pre-up ethtool -s eth0 speed 100 duplex full autoneg off
>>
>
> Hi Gary,
>
> That will help.
> I guess the same will work when I configure staticip by modifying the
> /etc/network/interfaces file.
>
> I will try this one. Thanks once again!
>
>
This did not work :(

This is from the serial log:

Configuring network interfaces... Cannot get current device settings: No
such device
  not setting speed
  not setting duplex
  not setting autoneg


I guess before ifup is executed, ethtool cannot get eth0.

Any other suggestions?

-Pj
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