Re: Raspberry PI4 NIC problem

[Jared McNeill <jmcneill%invisible.ca@localhost>]

Hi! I just committed some changes to genet and brgphy that should help. 
Can you cvs up and try again?

On Mon, 25 May 2020, Shin'ichiro TAYA wrote:

> I have RPI4 running NetBSD-current/evbarm64 (9.99.60).
> But NIC(genet) doesn't work.
>
> I thoroughly compare the source code & dmesg between raspbian & NetBSD.
> I found phy-mode is "rgmii" for raspbian but "ramie-rxid" for NetBSD.
>
> See
> https://github.com/raspberrypi/linux/blob/rpi-4.19.y/arch/arm/boot/dts/bcm2838.dtsi
> or fdtdump bcm2711-rpi-4-b.dtb of raspbian.
>
> This means  bit 16 of GENET_EXT_RGMII_OOB_CTRL is set to 1.
> I modified genet_update_link() and set
> GENET_EXT_RGMII_OOB_ID_MODE_DISABLE to GENET_EXT_RGMII_OOB_CTRL and it
> works fine.
> Also I rewrite phy-mode in bcm2711-rpi-4-b.dts and ti works fine.
>
> Am I missing something?