layerscape: add patches-5.4

[openwrt/staging/wigyori.git] / target / linux / layerscape / patches-5.4 / 701-net-0379-net-phylink-make-QSGMII-a-valid-PHY-mode-for-in-band.patch

diff --git a/target/linux/layerscape/patches-5.4/701-net-0379-net-phylink-make-QSGMII-a-valid-PHY-mode-for-in-band.patch b/target/linux/layerscape/patches-5.4/701-net-0379-net-phylink-make-QSGMII-a-valid-PHY-mode-for-in-band.patch
new file mode 100644 (file)
index 0000000..44c9a86
--- /dev/null
+++ b/target/linux/layerscape/patches-5.4/701-net-0379-net-phylink-make-QSGMII-a-valid-PHY-mode-for-in-band.patch
@@ -0,0 +1,30 @@
+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);