Re: [PATCH v8] PCI: loongson: Override PCIe bridge supported speeds for Loongson-3C6000 series
From: Manivannan Sadhasivam
Date: Tue May 12 2026 - 07:39:51 EST
On Sun, 12 Apr 2026 18:17:31 +0800, Xi Ruoyao wrote:
> Older steppings of the Loongson-3C6000 series incorrectly report the
> supported link speeds on their PCIe bridges (device IDs 0x3c19, 0x3c29)
> as only 2.5 GT/s, despite the upstream bus supporting speeds from
> 2.5 GT/s up to 16 GT/s.
>
> As a result, since commit 774c71c52aa4 ("PCI/bwctrl: Enable only if more
> than one speed is supported"), bwctrl will be disabled if there's only
> one 2.5 GT/s value in vector `supported_speeds`.
>
> [...]
Applied, thanks!
[1/1] PCI: loongson: Override PCIe bridge supported speeds for Loongson-3C6000 series
commit: 72644ef266d2d7c679d1c8d8dd7ff5a7ab2171e9
Best regards,
--
Manivannan Sadhasivam <mani@xxxxxxxxxx>