[PATCH 0/6] PCI: dwc: Revert Link Up IRQ support

[FUKAUMI Naoki]

Hi Niklas,

On 11/27/25 16:43, Niklas Cassel wrote:
> Hello FUKAUMI Naoki,
> 
> On Thu, Nov 27, 2025 at 04:34:53PM +0900, FUKAUMI Naoki wrote:
>> Hi all,
>>
>> I'm very sorry, but my ROCK 5C appears to be unreliable. (It worked fine
>> with vanilla v6.13, so I thought it was fine.)
>>
>> I replaced it with another 5C (Lite), and now every method (Niklas's patch,
>> Shawn's patch, and applying patch 1 and 2) seems to work.
> 
> Could you please give us some more information.

Sorry for the confusion.

> Does the Rock 5C Lite have a PCIe switch?

ROCK 5C and 5C Lite use the same board design, only SoC is different, 
but there is no difference regarding PCIe functionality.

They have a PCIe 2.1 connector, and I've been testing a HAT with ASM2806 
via PCIe 2.1 connector.

> Does Rock 5C Lite work fine with the current code in mainline?
> (i.e. with bus enumeration when Link Up IRQ is triggered).

No, bus enumeration behind ASM2806 on ROCK 5C Lite (and any other 
RK358x-based boards I have) is not working with vanilla kernel.

Best regards,

--
FUKAUMI Naoki
Radxa Computer (Shenzhen) Co., Ltd.

> Kind regards,
> Niklas
>