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net: dsa: microchip: explicitly enable detection of L2 PTP frames

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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) <bastien.curutchet@bootlin.com>
Link: https://patch.msgid.link/20260727-ksz-new-ptp-v3-9-caba39e680e3@bootlin.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
This commit is contained in:
Bastien Curutchet (Schneider Electric)
2026-07-27 12:20:51 +02:00
committed by Jakub Kicinski
parent 46e8ceb399
commit 172397752e
1 changed files with 3 additions and 2 deletions
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5
drivers/net/dsa/microchip/ksz_ptp.c
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@@ -953,8 +953,9 @@ 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;