[PATCH net 0/3] net: dsa: lantiq_gswip: SGMII/2500BASE-X and flow-control fixes
From: Jan Havran (Advantech Czech) <hidden>
Date: 2026-09-07 13:50:52
Also in:
lkml
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. Patch 3 corrects the GSWIP_MDIO_PHY_FCONTX_EN field value (a typo present since the original vrx200 driver). 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. Jan Havran (Advantech Czech) (3): net: dsa: mxl-gsw1xx: set SerDes NCO rate before SGMII reset net: dsa: lantiq_gswip: handle SPEED_2500 in gswip_port_set_speed() net: dsa: lantiq_gswip: fix GSWIP_MDIO_PHY_FCONTX_EN value drivers/net/dsa/lantiq/lantiq_gswip.h | 2 +- drivers/net/dsa/lantiq/lantiq_gswip_common.c | 1 + drivers/net/dsa/lantiq/mxl-gsw1xx.c | 29 ++++++++++---------- 3 files changed, 17 insertions(+), 15 deletions(-) base-commit: 38b6be101006d3e7af972999f45d4f1e8250587a -- 2.39.5