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linux/arch/arm64/boot
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Josua Mayer e2ded08723 arm64: dts: marvell: cn9132-clearfog: fix multi-lane pci x2 and x4 ports 
commit 794a066688 upstream.

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.

This issue may be addressed in the comphy driver at a future point.

Fixes: e9ff907f40 ("arm64: dts: add description for solidrun cn9132 cex7 module and clearfog board")
Cc: stable@vger.kernel.org
Signed-off-by: Josua Mayer <josua@solid-run.com>
Signed-off-by: Gregory CLEMENT <gregory.clement@bootlin.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
History 2025-10-02 13:44:14 +02:00
..
dts arm64: dts: marvell: cn9132-clearfog: fix multi-lane pci x2 and x4 ports 2025-10-02 13:44:14 +02:00
.gitignore arm64: boot: Support Flat Image Tree 2024-04-12 15:48:32 +01:00
install.sh kbuild: Abort make on install failures 2024-07-20 13:34:54 +09:00
Makefile arm64: boot: add Image.xz support 2024-09-01 20:43:27 -07:00