net: dsa: lantiq_gswip: Let GSWIP automatically set the xMII clock

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commit 3e6fdeb28f upstream.

The xMII interface clock depends on the PHY interface (MII, RMII, RGMII)
as well as the current link speed. Explicitly configure the GSWIP to
automatically select the appropriate xMII interface clock.

This fixes an issue seen by some users where ports using an external
RMII or RGMII PHY were deaf (no RX or TX traffic could be seen). Most
likely this is due to an "invalid" xMII clock being selected either by
the bootloader or hardware-defaults.

Fixes: 14fceff477 ("net: dsa: Add Lantiq / Intel DSA driver for vrx200")
Signed-off-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

...

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Martin Blumenstingl 2021-03-24 20:36:04 +01:00 • committed by Greg Kroah-Hartman

parent 40375bc3d0

commit ba39959bfe

1 changed files with 7 additions and 2 deletions

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drivers/net/dsa/lantiq_gswip.c

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