2014-04-15 6:50 GMT-07:00 Thomas Petazzoni <thomas.petazzoni@xxxxxxxxxxxxxxxxxx>: > This commit adds the necessary definitions for the PHY layer to > recognize "qsgmii" as a valid PHY interface. A QSMII interface, as > defined at > http://en.wikipedia.org/wiki/Media_Independent_Interface#Quad_Serial_Gigabit_Media_Independent_Interface, > is "is a method of combining four SGMII lines into a 5Gbit/s > interface. QSGMII, like SGMII, uses LVDS signalling for the TX and RX > data and a single LVDS clock signal. QSGMII uses significantly fewer > signal lines than four SGMII busses." > > This type of MAC <-> PHY connection might require special handling on > the MAC driver side, so it should be possible to express this type of > MAC <-> PHY connection, for example in the Device Tree. > > Signed-off-by: Thomas Petazzoni <thomas.petazzoni@xxxxxxxxxxxxxxxxxx> Reviewed-by: Florian Fainelli <f.fainelli@xxxxxxxxx> > Cc: devicetree@xxxxxxxxxxxxxxx > --- > Documentation/devicetree/bindings/net/ethernet.txt | 2 +- > include/linux/phy.h | 3 +++ > 2 files changed, 4 insertions(+), 1 deletion(-) > > diff --git a/Documentation/devicetree/bindings/net/ethernet.txt b/Documentation/devicetree/bindings/net/ethernet.txt > index 9ecd43d..3fc3605 100644 > --- a/Documentation/devicetree/bindings/net/ethernet.txt > +++ b/Documentation/devicetree/bindings/net/ethernet.txt > @@ -10,7 +10,7 @@ The following properties are common to the Ethernet controllers: > - max-frame-size: number, maximum transfer unit (IEEE defined MTU), rather than > the maximum frame size (there's contradiction in ePAPR). > - phy-mode: string, operation mode of the PHY interface; supported values are > - "mii", "gmii", "sgmii", "tbi", "rev-mii", "rmii", "rgmii", "rgmii-id", > + "mii", "gmii", "sgmii", "qsgmii", "tbi", "rev-mii", "rmii", "rgmii", "rgmii-id", > "rgmii-rxid", "rgmii-txid", "rtbi", "smii", "xgmii"; this is now a de-facto > standard property; > - phy-connection-type: the same as "phy-mode" property but described in ePAPR; > diff --git a/include/linux/phy.h b/include/linux/phy.h > index 24126c4..4d0221f 100644 > --- a/include/linux/phy.h > +++ b/include/linux/phy.h > @@ -75,6 +75,7 @@ typedef enum { > PHY_INTERFACE_MODE_SMII, > PHY_INTERFACE_MODE_XGMII, > PHY_INTERFACE_MODE_MOCA, > + PHY_INTERFACE_MODE_QSGMII, > PHY_INTERFACE_MODE_MAX, > } phy_interface_t; > > @@ -116,6 +117,8 @@ static inline const char *phy_modes(phy_interface_t interface) > return "xgmii"; > case PHY_INTERFACE_MODE_MOCA: > return "moca"; > + case PHY_INTERFACE_MODE_QSGMII: > + return "qsgmii"; > default: > return "unknown"; > } > -- > 1.8.3.2 > > > _______________________________________________ > linux-arm-kernel mailing list > linux-arm-kernel@xxxxxxxxxxxxxxxxxxx > http://lists.infradead.org/mailman/listinfo/linux-arm-kernel -- Florian -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
