net: sfp: enhance quirk for Fibrestore 2.5G copper SFP module

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Enhance the quirk for Fibrestore 2.5G copper SFP module. The original
commit e27aca3760 ("net: sfp: add quirk for FS's 2.5G copper SFP")
introducing the quirk says that the PHY is inaccessible, but that is
not true.

The module uses Rollball protocol to talk to the PHY, and needs a 4
second wait before probing it, same as FS 10G module.

The PHY inside the module is Realtek RTL8221B-VB-CG PHY. The realtek
driver recently gained support to set it up via clause 45 accesses.

Signed-off-by: Marek Behún <kabel@kernel.org>
Reviewed-by: Jiri Pirko <jiri@nvidia.com>
Link: https://lore.kernel.org/r/20240423085039.26957-2-kabel@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>

...

This commit is contained in:

Marek Behún 2024-04-23 10:50:39 +02:00 • committed by Jakub Kicinski

parent 6999e0fc9a

commit cd4a32e600

1 changed files with 12 additions and 6 deletions

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18

drivers/net/phy/sfp.c

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