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

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: broadcom: Move bcm54xx_auxctl_{read, write} to common library

2016-11-24T20:45:53+00:00

We are going to need these functions to implement support for Broadcom
Wirespeed, aka downshift.

Signed-off-by: Florian Fainelli 
Signed-off-by: David S. Miller

net: phy: broadcom: Add BCM54810 PHY entry

2016-11-07T18:11:22+00:00

The BCM54810 PHY requires some semi-unique configuration, which results
in some additional configuration in addition to the standard config.
Also, some users of the BCM54810 require the PHY lanes to be swapped.
Since there is no way to detect this, add a device tree query to see if
it is applicable.

Inspired-by: Vikas Soni 
Signed-off-by: Jon Mason 
Reviewed-by: Florian Fainelli 
Reviewed-by: Andrew Lunn 
Signed-off-by: David S. Miller

net: phy: broadcom: add bcm54xx_auxctl_read

2016-11-07T18:11:21+00:00

Add a helper function to read the AUXCTL register for the BCM54xx.  This
mirrors the bcm54xx_auxctl_write function already present in the code.

Signed-off-by: Jon Mason 
Reviewed-by: Florian Fainelli 
Signed-off-by: David S. Miller

net: phy: broadcom: Add support for BCM54612E

2016-10-26T21:15:26+00:00

This PHY has internal delays enabled after reset. This clears the
internal delay enables unless the interface specifically requests them.

Signed-off-by: Xo Wang 
Reviewed-by: Florian Fainelli 
Reviewed-by: Joel Stanley 
Signed-off-by: David S. Miller

phy: Centralize setting driver module owner

2016-01-07T19:31:27+00:00

Rather than have each driver set the driver owner field, do it once in
the core code. This will also help with later changes, when the device
structure will move.

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

broadcom: fix PHY_ID_BCM5481 entry in the id table

2015-11-24T04:29:27+00:00

Commit fcb26ec5b18d ("broadcom: move all PHY_ID's to header")
updated broadcom_tbl to use PHY_IDs, but incorrectly replaced 0x0143bca0
with PHY_ID_BCM5482 (making a duplicate entry, and completely omitting
the original). Fix that.

Fixes: fcb26ec5b18d ("broadcom: move all PHY_ID's to header")
Signed-off-by: Aaro Koskinen 
Signed-off-by: David S. Miller

net: phy: Add Broadcom phy library for common interfaces

2015-10-08T11:45:46+00:00

This patch adds the Broadcom phy library to consolidate common
interfaces shared by Broadcom phy's.

Moved the common interfaces to the 'bcm-phy-lib.c' and updated
the Broadcom PHY drivers to use the new APIs.

Signed-off-by: Arun Parameswaran 
Signed-off-by: David S. Miller

net: phy: broadcom: Add BCM54616S phy entry

2015-04-08T19:28:13+00:00

Signed-off-by: Alessio Igor Bogani 
Reviewed-by: Florian Fainelli 
Signed-off-by: David S. Miller

net: phy: replace phy_drivers_register calls

2014-11-12T18:52:53+00:00

Replace module init/exit which only calls phy_drivers_register with
module_phy_driver macro.

Tested using Micrel driver, and otherwise compile-tested only.

Signed-off-by: Johan Hovold 
Signed-off-by: David S. Miller