Detection of L2 PTP frames needs to be enabled for PTP to work at the L2 layer. The bit enabling this detection is set by default on the switches currently supported by the driver, but it is unset by default on the KSZ8463 for which support will be added in upcoming patches. Explicitly enable the detection of L2 PTP frames for all switches when PTP is enabled. Signed-off-by: Bastien Curutchet (Schneider Electric) --- drivers/net/dsa/microchip/ksz_ptp.c | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) diff --git a/drivers/net/dsa/microchip/ksz_ptp.c b/drivers/net/dsa/microchip/ksz_ptp.c index dab7016c6f38a37ed6e2dc60a1f1251aea6a7cbc..7bb5191e780f151fe74ff0163ea1fa8b0f3ebee9 100644 --- a/drivers/net/dsa/microchip/ksz_ptp.c +++ b/drivers/net/dsa/microchip/ksz_ptp.c @@ -947,8 +947,9 @@ int ksz_ptp_clock_register(struct dsa_switch *ds) /* Currently only P2P mode is supported. When 802_1AS bit is set, it * forwards all PTP packets to host port and none to other ports. */ - ret = ksz_rmw16(dev, regs[PTP_MSG_CONF1], PTP_TC_P2P | PTP_802_1AS, - PTP_TC_P2P | PTP_802_1AS); + ret = ksz_rmw16(dev, regs[PTP_MSG_CONF1], + PTP_TC_P2P | PTP_802_1AS | PTP_ETH_ENABLE, + PTP_TC_P2P | PTP_802_1AS | PTP_ETH_ENABLE); if (ret) return ret; -- 2.53.0