| From 5fdc065751ee25688f99da501123f7e7d4020751 Mon Sep 17 00:00:00 2001 |
| From: Vladimir Oltean <vladimir.oltean@nxp.com> |
| Date: Fri, 22 Nov 2019 13:46:46 +0200 |
| Subject: [PATCH] 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 <vladimir.oltean@nxp.com> |
| --- |
| drivers/net/phy/phylink.c | 1 + |
| 1 file changed, 1 insertion(+) |
| |
| --- a/drivers/net/phy/phylink.c |
| +++ b/drivers/net/phy/phylink.c |
| @@ -283,6 +283,7 @@ static int phylink_parse_mode(struct phy |
| |
| 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); |