On Mon, Oct 11, 2021 at 05:22:09PM +0300, alexandru.tachici@xxxxxxxxxx wrote: > From: Alexandru Tachici <alexandru.tachici@xxxxxxxxxx> > > The 802.3gc specification defines the 10-BaseT1L link > mode for ethernet trafic on twisted wire pair. > > PMA status register can be used to detect if the phy supports > 2.4 V TX level and PCS control register can be used to > enable/disable PCS level loopback. > > Signed-off-by: Alexandru Tachici <alexandru.tachici@xxxxxxxxxx> Reviewed-by: Oleksij Rempel <o.rempel@xxxxxxxxxxxxxx> Thank you! Question on maintainers: IEEE 802.3 spec, documents register bits in the little-endian order. In the mdio.h we use big-endian, it makes comparison with the spec a bit more challenging. May be we should fix it? Regards, Oleksij > --- > include/uapi/linux/mdio.h | 16 ++++++++++++++++ > 1 file changed, 16 insertions(+) > > diff --git a/include/uapi/linux/mdio.h b/include/uapi/linux/mdio.h > index bdf77dffa5a4..8ae82fe3aece 100644 > --- a/include/uapi/linux/mdio.h > +++ b/include/uapi/linux/mdio.h > @@ -65,6 +65,8 @@ > #define MDIO_PCS_10GBRT_STAT2 33 /* 10GBASE-R/-T PCS status 2 */ > #define MDIO_AN_10GBT_CTRL 32 /* 10GBASE-T auto-negotiation control */ > #define MDIO_AN_10GBT_STAT 33 /* 10GBASE-T auto-negotiation status */ > +#define MDIO_PMA_10T1L_STAT 2295 /* 10BASE-T1L PMA status */ > +#define MDIO_PCS_10T1L_CTRL 2278 /* 10BASE-T1L PCS control */ > > /* LASI (Link Alarm Status Interrupt) registers, defined by XENPAK MSA. */ > #define MDIO_PMA_LASI_RXCTRL 0x9000 /* RX_ALARM control */ > @@ -262,6 +264,20 @@ > #define MDIO_AN_10GBT_STAT_MS 0x4000 /* Master/slave config */ > #define MDIO_AN_10GBT_STAT_MSFLT 0x8000 /* Master/slave config fault */ > > +/* 10BASE-T1L PMA status register. */ > +#define MDIO_PMA_10T1L_STAT_LINK 0x0001 /* PMA receive link up */ > +#define MDIO_PMA_10T1L_STAT_FAULT 0x0002 /* Fault condition detected */ > +#define MDIO_PMA_10T1L_STAT_POLARITY 0x0004 /* Receive polarity is reversed */ > +#define MDIO_PMA_10T1L_STAT_RECV_FAULT 0x0200 /* Able to detect fault on receive path */ > +#define MDIO_PMA_10T1L_STAT_EEE 0x0400 /* PHY has EEE ability */ > +#define MDIO_PMA_10T1L_STAT_LOW_POWER 0x0800 /* PMA has low-power ability */ > +#define MDIO_PMA_10T1L_STAT_2V4_ABLE 0x1000 /* PHY has 2.4 Vpp operating mode ability */ > +#define MDIO_PMA_10T1L_STAT_LB_ABLE 0x2000 /* PHY has loopback ability */ > + > +/* 10BASE-T1L PCS control register. */ > +#define MDIO_PCS_10T1L_CTRL_LB 0x4000 /* Enable PCS level loopback mode */ > +#define MDIO_PCS_10T1L_CTRL_RESET 0x8000 /* PCS reset */ > + > /* EEE Supported/Advertisement/LP Advertisement registers. > * > * EEE capability Register (3.20), Advertisement (7.60) and > -- > 2.25.1 -- Pengutronix e.K. | | Steuerwalder Str. 21 | http://www.pengutronix.de/ | 31137 Hildesheim, Germany | Phone: +49-5121-206917-0 | Amtsgericht Hildesheim, HRA 2686 | Fax: +49-5121-206917-5555 |
