Merge branch 'net-dsa-lantiq_gswip-sgmii-2500base-x-and-flow-control-fixes'

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Jan Havran says:

====================
net: dsa: lantiq_gswip: SGMII/2500BASE-X and flow-control fixes

This series fixes three issues in the lantiq_gswip / mxl-gsw1xx DSA driver
found while bringing up a MaxLinear GSW145 over SGMII on a Marvell
Armada 7040 board, with the switch CPU port running 2500BASE-X and the
user ports at 1000BASE-T.

Patch 1 reorders the SerDes NCO clock-rate setup ahead of the SGMII shell
reset. Without it, only the rate the switch was left at by the straps or
the boot loader links up; the other rate comes up but forwards no traffic.

Patch 2 adds the missing SPEED_2500 case to gswip_port_set_speed(); without
it the CPU port was forced to 10 Mbps at 2.5G link-up.

Tested on GSW145 hardware only. The register values are backed by the
public GSW145 data sheet and by the driver's own field encoding; the
xRX200/xRX300 data sheets are not public.
====================

Link: https://patch.msgid.link/20260907134818.16670-1-havran.jan@email.cz
Signed-off-by: Jakub Kicinski <kuba@kernel.org>

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This commit is contained in:

Jakub Kicinski 2026-09-09 17:58:04 -07:00

parent 10973152f2 6b597ba4c2

commit b9e72f3307

2 changed files with 16 additions and 14 deletions

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1

drivers/net/dsa/lantiq/lantiq_gswip_common.c

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29

drivers/net/dsa/lantiq/mxl-gsw1xx.c

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