From 3a68ba6fbab786a50f380894c832bf36ba7335f3 Mon Sep 17 00:00:00 2001 From: Vladimir Oltean Date: Mon, 6 Jan 2020 03:34:10 +0200 Subject: net: phylink: make QSGMII a valid PHY mode for in-band AN QSGMII is a SerDes protocol clocked at 5 Gbaud (4 times higher than SGMII which is clocked at 1.25 Gbaud), with the same 8b/10b encoding and some extra symbols for synchronization. Logically it offers 4 SGMII interfaces multiplexed onto the same physical lanes. Each MAC PCS has its own in-band AN process with the system side of the QSGMII PHY, which is identical to the regular SGMII AN process. So allow QSGMII as a valid in-band AN mode, since it is no different from software perspective from regular SGMII. Signed-off-by: Vladimir Oltean Signed-off-by: David S. Miller --- drivers/net/phy/phylink.c | 1 + 1 file changed, 1 insertion(+) (limited to 'drivers/net/phy/phylink.c') diff --git a/drivers/net/phy/phylink.c b/drivers/net/phy/phylink.c index 1edca9725370..88686e0f9ae1 100644 --- a/drivers/net/phy/phylink.c +++ b/drivers/net/phy/phylink.c @@ -281,6 +281,7 @@ static int phylink_parse_mode(struct phylink *pl, struct fwnode_handle *fwnode) switch (pl->link_config.interface) { case PHY_INTERFACE_MODE_SGMII: + case PHY_INTERFACE_MODE_QSGMII: phylink_set(pl->supported, 10baseT_Half); phylink_set(pl->supported, 10baseT_Full); phylink_set(pl->supported, 100baseT_Half); -- cgit v1.2.3-59-g8ed1b