Using L2 Ethernet Switch

[vladimirovseych]

Hello, Dear Everyone!

I can't find enough information about linux driver for L2 Ethernet Switch in i.MX28.

Does 3.x and 4.x kernel support this hardware module?

And how one can setup the switch from userspace?

Thanks.

[art]

Refer to the Chapter 16 of the attached document. This is about the latest L2.6.35 Linux BSP for the i.MX28 EVK board by FSL/NXP, available for download on the NXP web site (check the "Board Support Packages" section):

http://www.nxp.com/products/microcontrollers-and-processors/arm-processors/i.mx-applications-process...

Have a great day,
Artur

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[vladimirovseych]

GitHub - genesi/linux-legacy: Legacy 2.6.31 kernel for Efika MX systems Is that?

[vladimirovseych]

Thank you, Artur.

If I understand there is no switch driver for 3.x,4.x kernel. So I'll try to port it. But I didn't manage to find sources(fec_switch.c,.h) at nxp.com. Would you be so kind to write here a direct link to 2.6 kernel sources with switch driver?

[lategoodbye]

Hi Vladimir,

you are right. The L2 switch driver has never been ported to mainline.

Please use

linux-2.6-imx.git - Freescale i.MX Linux Tree

Stefan

[lukaszmajewski]

Was there any follow up on porting this driver to newest Linux kernel?

I've poked around and I was not able to find any patches related to L2 switch (fec_switch.[ch])

[lukaszmajewski]

I've "refurbished" the old NXP's L2 switch driver (for iMX28) to be usable on 4.19.y kernel. It seems like it works.

However, this driver shall be rewritten (and upstreamed) to use Distributed Switch Architecture [DSA] framework.

Link to the sources:

Commits · lmajewski/linux-imx28-l2switch · GitHub