CFT: alpha test of Ethernet driver for RPi4

[Robert Crowston]

This is brilliant news! Well done.

I’m happy to help. I have a few different Pi4s lying around and a JTAG.

Does ethernet work for netbsd yet or is this still in development there?

(Wish I had better news on the pcie front. I can detect the peripheral, that is, the USB controller, and configure it, but still no luck in mapping the PCI-E bars into the address space. If you learnt any tricks to get the Pi 4’s DMA to behave, give me a shout.)

On Sat, Mar 28, 2020 at 16:22, Mike Karels <mike at karels.net> wrote:

> I have a driver for the Ethernet on the RPi4 that is nearly ready for
> initial testing. If you have a RPi4 and are willing to test, let me
> know. Also, if anyone is able to review the busdma hooks, that would
> be appreciated.
>
> There are a lot of loose ends. The main missing feature is checksum
> offload. There are also some question marks in the initialization code
> that make configuration fairly noisy at the moment.
>
> This driver is derived in part from the NetBSD bcmgenet.c driver by
> Jared McNeill. I also used framework from the Allwinner if_awg.c driver,
> also by Jared McNeill.
>
> Mike
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