Re: (subset) [PATCH v2 0/4] PCI: rockchip: 5.0 GT/s speed may be dangerous

Heiko Stuebner
2025-12-22T13:39:06Z

On Mon, 17 Nov 2025 18:46:43 -0300, Geraldo Nascimento wrote:
> Dragan Simic already had warned me of potential issues with 5.0 GT/s
> speed operation in Rockchip PCIe. However, in recent interactions
> with Shawn Lin from Rockchip it came to my attention there's grave
> danger in the unknown errata regarding 5.0 GT/s operational speed
> of their PCIe core. Even if the odds are low, to contain any damage,
> let's cover the remaining corner-cases where the default would lead
> to 5.0 GT/s operation as well as add a comment to Root Complex driver
> core, documenting this danger. Furthermore, remove redundant
> declaration of max-link-speed from rk3399-nanopi-r4s.dtsi
>
> [...]

Applied, thanks!

[3/4] arm64: dts: rockchip: remove dangerous max-link-speed from helios64
commit: 0368e4afcf20f377c81fa77b1c7d0dee4a625a44
[4/4] arm64: dts: rockchip: remove redundant max-link-speed from nanopi-r4s
commit: ce652c98a7bfa0b7c675ef5cd85c44c186db96af

Best regards,
--
Heiko Stuebner <heiko@sntech.de>