[PATCH v2 3/4] arm64: dts: marvell: cn9132-clearfog: fix multi-lane pci x2 and x4 ports

Andrew Lunn andrew at lunn.ch
Thu Sep 11 15:12:48 PDT 2025


On Thu, Sep 11, 2025 at 08:28:06PM +0200, Josua Mayer wrote:
> The mvebu-comphy driver does not currently know how to pass correct
> lane-count to ATF while configuring the serdes lanes.
> 
> This causes the system to hard reset during reconfiguration, if a pci
> card is present and has established a link during bootloader.
> 
> Remove the comphy handles from the respective pci nodes to avoid runtime
> reconfiguration, relying solely on bootloader configuration - while
> avoiding the hard reset.
> 
> When bootloader has configured the lanes correctly, the pci ports are
> functional under Linux.

Does this require a specific bootloader? Can i use mainline grub or
bareboot?

	Andrew



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