linux-kernel - Re: [RESEND] Re: [PATCH] PCI: dw-rockchip: Skip waiting for link up

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Message-ID: <0C31787C387488ED+fd39bfe6-0844-4a87-bf48-675dd6d6a2df@radxa.com>
Date: Mon, 10 Nov 2025 16:52:46 +0900
From: FUKAUMI Naoki <naoki@...xa.com>
To: Shawn Lin <shawn.lin@...k-chips.com>, Niklas Cassel <cassel@...nel.org>
Cc: Damien Le Moal <dlemoal@...nel.org>, Anand Moon <linux.amoon@...il.com>,
 linux-pci@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
 linux-rockchip@...ts.infradead.org, linux-kernel@...r.kernel.org,
 Dragan Simic <dsimic@...jaro.org>, Lorenzo Pieralisi
 <lpieralisi@...nel.org>, Krzysztof Wilczyński
 <kw@...ux.com>, Rob Herring <robh@...nel.org>,
 Bjorn Helgaas <bhelgaas@...gle.com>, Heiko Stuebner <heiko@...ech.de>,
 mani@...nel.org
Subject: Re: [RESEND] Re: [PATCH] PCI: dw-rockchip: Skip waiting for link up

Hi Shawn,

On 11/10/25 16:12, Shawn Lin wrote:
(snip)> Thanks for testing. I just got a ASM2806 switch as yours and 
verified it
> on vanilla v6.18-rc5. After 30 times of cold boot, two NVMes behind
> ASM2806 work as expected. Nothing special happened when I checked
> with PA as well. You could help check the log and lspci dump there[1].
> 
> [1]https://pastebin.com/sAF1fT0g

Thanks for the info!

I tried ASM2806 on Radxa ROCK 5B (RK3588).
  https://gist.github.com/RadxaNaoki/640e47d377add9fe38301de164d4058e

It doesn't work on PCIe 2.0 (M.2 E Key), but it does work on PCIe 3.0 
(M.2 M Key).

Could you try PCIe 2.0 slot on your board?

Best regards,

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