TDA4VM: VLAN configuration for eth0 interface in u-boot

Adam Kubiak

Intellectual 920 points

Part Number: TDA4VM

Hi,

Is it possible to configure a VLAN for the eth0 interface in u-boot?

Currently we are using SDK 7.0.

Kind regards,

Adam

over 4 years ago

0 Vineet Roy over 4 years ago

TI__Mastermind 37435 points

Hi Adam,

Can you try by setting the vlan environment variable to the value you want. Anything less than 4096 should enable VLAN.

Eg:

setenv vlan 4012

saveenv

Regards

Vineet

0 Adam Kubiak over 4 years ago in reply to Vineet Roy

Intellectual 920 points

Hi Vineet,

I should have been more specific.

Can it be configured in the device tree?

Kind regards,

Adam

0 Sekhar Nori over 4 years ago in reply to Adam Kubiak

TI__Expert 6385 points

Hi Adam, there is no such support in device tree. Thanks, Sekhar

0 Adam Kubiak over 4 years ago in reply to Sekhar Nori

Intellectual 920 points

Hi Sekhar,

Thank you for the information.

Since setting VLAN in device tree is not supported will the setenv vlan command work in u-boot?

If yes will it work without any issues with the flashing of Linux via Ethernet?

Kind regards,

Adam

0 Sekhar Nori over 4 years ago in reply to Adam Kubiak

TI__Expert 6385 points

Hi Adam,

This U-Boot feature has not been tried. VLAN is only tested in Linux. Based on doc/README.VLAN in U-Boot sources, it should work without driver changes. I did check that the receive buffer size in driver is set to 1536 which should accommodate VLAN tags.

Did you try it out and face any issues?

Thanks,

Sekhar

0 Adam Kubiak over 4 years ago in reply to Sekhar Nori

Intellectual 920 points

Hi Sekhar,

We have not tested it yet.

We will do so and if we encounter any problems we will make a separate thread.

Thank you for the support.

Kind regards,

Adam

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TDA4VM: VLAN configuration for eth0 interface in u-boot