From 157ac9f52fd9b9a22cf12f7755a905fb34ef72f7 Mon Sep 17 00:00:00 2001 From: Gabor Juhos Date: Fri, 25 Dec 2020 08:02:47 +0100 Subject: [PATCH] net: phy: define PSGMII PHY interface mode The PSGMII interface is similar to QSGMII. The main difference is that the PSGMII interface combines five SGMII lines into a single link while in QSGMII only four lines are combined. Similarly to the QSGMII, this interface mode might also needs special handling within the MAC driver. Add definitions for the PHY layer to allow to express this type of connection between the MAC and PHY. Signed-off-by: Gabor Juhos --- Documentation/devicetree/bindings/net/ethernet-controller.yaml | 1 + drivers/net/phy/phylink.c | 2 ++ include/linux/phy.h | 3 +++ 3 files changed, 6 insertions(+) --- a/Documentation/devicetree/bindings/net/ethernet-controller.yaml +++ b/Documentation/devicetree/bindings/net/ethernet-controller.yaml @@ -64,6 +64,7 @@ properties: - mii - gmii - sgmii + - psgmii - qsgmii - tbi - rev-mii --- a/drivers/net/phy/phy-core.c +++ b/drivers/net/phy/phy-core.c @@ -140,6 +140,8 @@ int phy_interface_num_ports(phy_interfac case PHY_INTERFACE_MODE_QSGMII: case PHY_INTERFACE_MODE_QUSGMII: return 4; + case PHY_INTERFACE_MODE_PSGMII: + return 5; case PHY_INTERFACE_MODE_MAX: WARN_ONCE(1, "PHY_INTERFACE_MODE_MAX isn't a valid interface mode"); return 0; --- a/drivers/net/phy/phylink.c +++ b/drivers/net/phy/phylink.c @@ -371,6 +371,7 @@ void phylink_get_linkmodes(unsigned long case PHY_INTERFACE_MODE_RGMII_RXID: case PHY_INTERFACE_MODE_RGMII_ID: case PHY_INTERFACE_MODE_RGMII: + case PHY_INTERFACE_MODE_PSGMII: case PHY_INTERFACE_MODE_QSGMII: case PHY_INTERFACE_MODE_QUSGMII: case PHY_INTERFACE_MODE_SGMII: @@ -636,6 +637,7 @@ static int phylink_parse_mode(struct phy switch (pl->link_config.interface) { case PHY_INTERFACE_MODE_SGMII: + case PHY_INTERFACE_MODE_PSGMII: case PHY_INTERFACE_MODE_QSGMII: case PHY_INTERFACE_MODE_QUSGMII: phylink_set(pl->supported, 10baseT_Half); --- a/include/linux/phy.h +++ b/include/linux/phy.h @@ -141,6 +141,7 @@ typedef enum { PHY_INTERFACE_MODE_XGMII, PHY_INTERFACE_MODE_XLGMII, PHY_INTERFACE_MODE_MOCA, + PHY_INTERFACE_MODE_PSGMII, PHY_INTERFACE_MODE_QSGMII, PHY_INTERFACE_MODE_TRGMII, PHY_INTERFACE_MODE_100BASEX, @@ -248,6 +249,8 @@ static inline const char *phy_modes(phy_ return "xlgmii"; case PHY_INTERFACE_MODE_MOCA: return "moca"; + case PHY_INTERFACE_MODE_PSGMII: + return "psgmii"; case PHY_INTERFACE_MODE_QSGMII: return "qsgmii"; case PHY_INTERFACE_MODE_TRGMII: