linux.git/drivers/net/phy, branch v4.9-rc5

net: phy: dp83848: add dp83822 PHY support

2016-10-29T21:25:17+00:00

This PHY has a compatible register set with DP83848x so
add support for it.

Acked-by: Andrew F. Davis 
Signed-off-by: Roger Quadros 
Signed-off-by: David S. Miller

at803x: double check SGMII side autoneg

2016-10-27T20:05:17+00:00

In SGMII mode, we observed an autonegotiation issue
after power-down-up cycles where the copper side
reports successful link establishment but the
SGMII side's link is down.

This happened in a setup where the at8031 is
connected over SGMII to a eTSEC (fsl gianfar),
but so far could not be reproduced with other
Ethernet device / driver combinations.

This commit adds a wrapper function for at8031
that in case of operating in SGMII mode double
checks SGMII link state when generic aneg_done()
succeeds. It prints a warning on failure but
intentionally does not try to recover from this
state. As a result, if you ever see a warning
'803x_aneg_done: SGMII link is not ok' you will
end up having an Ethernet link up but won't get
any data through. This should not happen, if it
does, please contact the module maintainer.

Signed-off-by: Zefir Kurtisi 
Signed-off-by: David S. Miller

Revert "at803x: fix suspend/resume for SGMII link"

2016-10-27T20:05:16+00:00

This reverts commit 98267311fe3b334ae7c107fa0e2413adcf3ba735.

Suspending the SGMII alongside the copper side
made the at803x inaccessable while powered down,
e.g. it can't be re-probed after suspend.

Signed-off-by: Zefir Kurtisi 
Signed-off-by: David S. Miller

net: phy: Trigger state machine on state change and not polling.

2016-10-13T16:03:47+00:00

The phy_start() is used to indicate the PHY is now ready to do its
work. The state is changed, normally to PHY_UP which means that both
the MAC and the PHY are ready.

If the phy driver is using polling, when the next poll happens, the
state machine notices the PHY is now in PHY_UP, and kicks off
auto-negotiation, if needed.

If however, the PHY is using interrupts, there is no polling. The phy
is stuck in PHY_UP until the next interrupt comes along. And there is
no reason for the PHY to interrupt.

Have phy_start() schedule the state machine to run, which both speeds
up the polling use case, and makes the interrupt use case actually
work.

This problems exists whenever there is a state change which will not
cause an interrupt. Trigger the state machine in these cases,
e.g. phy_error().

Signed-off-by: Andrew Lunn 
Cc: Kyle Roeschley 
Tested-by: Kyle Roeschley 
Signed-off-by: David S. Miller

drivers: net: phy: Correct duplicate MDIO_XGENE entry

2016-10-07T01:15:42+00:00

An extra entry for MDIO_XGENE got added during merging.
Delete it.

Reviewed-by: Andrew Lunn 
Signed-off-by: Laura Abbott 
Acked-by: Florian Fainelli 
Signed-off-by: David S. Miller

net: phy: Add Wake-on-LAN driver for Microsemi PHYs.

2016-10-07T00:48:04+00:00

Wake-on-LAN (WoL) is an Ethernet networking standard that allows
a computer/device to be turned on or awakened by a network message.

VSC8531 PHY can support this feature configure by driver set function.
WoL status get by driver get function.

Tested on Beaglebone Black with VSC 8531 PHY.

Signed-off-by: Raju Lakkaraju 
Signed-off-by: David S. Miller

phy: micrel.c: Enable ksz9031 energy-detect power-down mode

2016-10-06T01:19:06+00:00

Set bit 0 in register 1C.23 to enable the EDPD feature of the
KSZ9031 PHY. This reduces power consumption when the link is
down.

Signed-off-by: Mike Looijmans 
Reviewed-by: Andrew Lunn 
Reviewed-by: Florian Fainelli

net: phy: Add Edge-rate driver for Microsemi PHYs.

2016-10-04T04:47:30+00:00

Edge-rate:
As system and networking speeds increase, a signal's output transition,
also know as the edge rate or slew rate (V/ns), takes on greater importance
because high-speed signals come with a price. That price is an assortment of
interference problems like ringing on the line, signal overshoot and
undershoot, extended signal settling times, crosstalk noise, transmission
line reflections, false signal detection by the receiving device and
electromagnetic interference (EMI) -- all of which can negate the potential
gains designers are seeking when they try to increase system speeds through
the use of higher performance logic devices. The fact is, faster signaling
edge rates can cause a higher level of electrical noise or other type of
interference that can actually lead to slower line speeds and lower maximum
system frequencies. This parameter allow the board designers to change the
driving strange, and thereby change the EMI behavioral.

Edge-rate parameters (vddmac, edge-slowdown) get from Device Tree.

Tested on Beaglebone Black with VSC 8531 PHY.

Signed-off-by: Raju Lakkaraju 
Signed-off-by: David S. Miller

Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net

2016-09-23T10:46:57+00:00

net: phy: Add MAC-IF driver for Microsemi PHYs.

2016-09-20T08:39:23+00:00

All the review comments updated and resending for review.

This is MAC interface feature.
Microsemi PHY can support RGMII, RMII or GMII/MII interface between MAC and PHY.
MAC-IF function program the right value based on Device tree configuration.

Tested on Beaglebone Black with VSC 8531 PHY.

Signed-off-by: Raju Lakkaraju 
Reviewed-by: Andrew Lunn 
Signed-off-by: David S. Miller