linux-toradex.git/drivers/net/phy/micrel.c, branch v4.10

net: phy: micrel: KSZ8795 do not set SUPPORTED_[Asym_]Pause

2017-01-29T23:45:15+00:00

As pr commit "net: phy: phy drivers should not set SUPPORTED_[Asym_]Pause"
this phy driver should not set these feature bits.

Signed-off-by: Sean Nyekjaer 
Fixes: 9d162ed69f51 ("net: phy: micrel: add support for KSZ8795")
Reviewed-by: Florian Fainelli 
Signed-off-by: David S. Miller

net: phy: micrel: add support for KSZ8795

2017-01-27T16:10:50+00:00

This is adds support for the PHYs in the KSZ8795 5port managed switch.

It will allow to detect the link between the switch and the soc
and uses the same read_status functions as the KSZ8873MLL switch.

Signed-off-by: Sean Nyekjaer 
Signed-off-by: David S. Miller

net: phy: phy drivers should not set SUPPORTED_[Asym_]Pause

2016-12-11T04:31:19+00:00

Instead of having individual PHY drivers set the SUPPORTED_Pause and
SUPPORTED_Asym_Pause flags, phylib itself should set those flags,
unless there is a hardware erratum or other special case.  During
autonegotiation, the PHYs will determine whether to enable pause
frame support.

Pause frames are a feature that is supported by the MAC.  It is the MAC
that generates the frames and that processes them.  The PHY can only be
configured to allow them to pass through.

This commit also effectively reverts the recently applied c7a61319
("net: phy: dp83848: Support ethernet pause frames").

So the new process is:

1) Unless the PHY driver overrides it, phylib sets the SUPPORTED_Pause
and SUPPORTED_AsymPause bits in phydev->supported.  This indicates that
the PHY supports pause frames.

2) The MAC driver checks phydev->supported before it calls phy_start().
If (SUPPORTED_Pause | SUPPORTED_AsymPause) is set, then the MAC driver
sets those bits in phydev->advertising, if it wants to enable pause
frame support.

3) When the link state changes, the MAC driver checks phydev->pause and
phydev->asym_pause,  If the bits are set, then it enables the corresponding
features in the MAC.  The algorithm is:

	if (phydev->pause)
		The MAC should be programmed to receive and honor
                pause frames it receives, i.e. enable receive flow control.

	if (phydev->pause != phydev->asym_pause)
		The MAC should be programmed to transmit pause
		frames when needed, i.e. enable transmit flow control.

Signed-off-by: Timur Tabi 
Signed-off-by: David S. Miller

net: phy: micrel: fix KSZ8041FTL supported value

2016-11-24T01:18:36+00:00

Fix setting of SUPPORTED_FIBRE bit as it was not present in features
of KSZ8041.

Signed-off-by: Kirill Esipov 
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

phy: micrel: Reenable interrupts during resume for ksz9031

2016-08-23T23:56:54+00:00

Like the ksz8081, the ksz9031 has the behavior where it will clear the
interrupt enable bits when leaving power down. This takes advantage of the
solution provided by f5aba91.

Signed-off-by: Xander Huff 
Signed-off-by: Nathan Sullivan 
Reviewed-by: Florian Fainelli 
Signed-off-by: David S. Miller

net: phy: micrel: Add specific suspend

2016-08-09T23:19:15+00:00

Disable all interrupts when suspend, they will be enabled
when resume. Otherwise, the suspend/resume process will be
blocked occasionally.

Signed-off-by: Wenyou Yang 
Acked-by: Nicolas Ferre 
Signed-off-by: David S. Miller

phy/micrel: Change phy_id_mask for KSZ8721

2016-08-01T03:37:12+00:00

There are KSZ8721 PHYs with phy_id 0x00221619. In order to detect them
as PHY_ID_KSZ8001 compatible while staying different to PHY_ID_KSZ9021
ignore the last two bits when matching PHY_ID

Signed-off-by: Alexander Stein 
Signed-off-by: David S. Miller

net: phy: micrel: Add KSZ8041FTL fiber mode support

2016-07-15T18:53:02+00:00

We can't detect the FXEN (fiber mode) bootstrap pin, so configure
it via a boolean device tree property "micrel,fiber-mode".
If it is enabled, auto-negotiation is not supported.
The only available modes are 100base-fx (full duplex and half duplex).

Signed-off-by: Philipp Zabel 
Signed-off-by: David S. Miller

phy: micrel: Use MICREL_PHY_ID_MASK definition

2016-05-12T20:55:33+00:00

Replace the hardcoded mask 0x00fffff0 with MICREL_PHY_ID_MASK for
better readability.

Suggested-by: Andrew Lunn 
Signed-off-by: Fabio Estevam 
Reviewed-by: Andrew Lunn 
Acked-by: Florian Fainelli 
Signed-off-by: David S. Miller