Re: [PATCH 2/3] can: rockchip: add RK3588 CAN-FD support

From: Marc Kleine-Budde

Date: Thu Jul 02 2026 - 04:21:51 EST


On 02.07.2026 10:53:53, Cunhao Lu wrote:
> That works for me. I will prepare a v2 with:
>
> - the binding schema changed to use enum as suggested by Krzysztof
> - RKCANFD_QUIRK_RK3568_ERRATUM_6 enabled for RK3588v2
> - your Haikou patch added to the series

Is the SoC you're using actually a 'v2' silicon revision? At least on
the rk3568 the downstream kernel has code to read the revision.

> > But if it actually works, then personally I'm more than fine with
> > enabling CAN-FD :-D .
> >
> > I guess Marc might have more insight where the FD issue triggered on
> > the RK3568.
>
> I will also double-check that CAN-FD still works with the v2 changes and
> wait for Marc's feedback on the CAN-FD issue before deciding whether
> RKCANFD_QUIRK_CANFD_BROKEN should stay disabled for RK3588v2.

Compile the latest https://github.com/linux-can/can-utils/ and test:

$ cangen can0 -I 2 -Li -Di -p 10 -f -g 1 -c32 -b
$ cansequence -rv can1 -f

regards,
Marc

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