linux-toradex.git/Documentation/networking/phy.txt, branch v4.10

phy: add phy fixup unregister functions

2016-12-08T19:21:47+00:00

>From : Woojung Huh 

Add functions to unregister phy fixup for modules.

int phy_unregister_fixup(const char *bus_id, u32 phy_uid, u32 phy_uid_mask)
	Unregister phy fixup from phy_fixup_list per bus_id, phy_uid &
	phy_uid_mask

int phy_unregister_fixup_for_uid(u32 phy_uid, u32 phy_uid_mask)
	Unregister phy fixup from phy_fixup_list.
	Use it for fixup registered by phy_register_fixup_for_uid()

int phy_unregister_fixup_for_id(const char *bus_id)
	Unregister phy fixup from phy_fixup_list.
	Use it for fixup registered by phy_register_fixup_for_id()

Signed-off-by: Woojung Huh 
Signed-off-by: David S. Miller

Documentation: net: phy: Add links to several standards documents

2016-11-28T21:07:43+00:00

Add links to the IEEE 802.3-2008 document, and the RGMII v1.3 and v2.0
revisions of the standard.

Reviewed-by: Martin Blumenstingl 
Signed-off-by: Florian Fainelli 
Signed-off-by: David S. Miller

Documentation: net: phy: Add blurb about RGMII

2016-11-28T21:07:42+00:00

RGMII is a recurring source of pain for people with Gigabit Ethernet
hardware since it may require PHY driver and MAC driver level
configuration hints. Document what are the expectations from PHYLIB and
what options exist.

Reviewed-by: Martin Blumenstingl 
Signed-off-by: Florian Fainelli 
Signed-off-by: David S. Miller

Documentation: net: phy: Add a paragraph about pause frames/flow control

2016-11-28T21:07:42+00:00

Describe that the Ethernet MAC controller is ultimately responsible for
dealing with proper pause frames/flow control advertisement and
enabling, and that it is therefore allowed to have it change
phydev->supported/advertising with SUPPORTED_Pause and
SUPPORTED_AsymPause.

Reviewed-by: Martin Blumenstingl 
Signed-off-by: Florian Fainelli 
Signed-off-by: David S. Miller

Documentation: net: phy: remove description of function pointers

2016-11-28T21:07:42+00:00

Remove the function pointers documentation which duplicates information
found in include/linux/phy.h. Maintaining documentation about two
different locations just does not work, but the code is less likely to
be outdated.

Reviewed-by: Martin Blumenstingl 
Signed-off-by: Florian Fainelli 
Signed-off-by: David S. Miller

Documentation: networking: phy.txt: Add missing functions

2016-03-14T19:00:04+00:00

Some new development in PHYLIB added new function pointers to the struct
phy_driver, document these.

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

Documentation: networking: phy.txt: Update text for indirect MMD access

2014-07-31T03:00:22+00:00

Update the PHY library documentation to describe how a specific PHY
driver can use the PAL MMD register access routines or override those
routines with it's own in the event the PHY does not support the IEEE
standard for reading and writing MMD phy registers.

Signed-off-by: Vince Bridgers 
Reviewed-by: Florian Fainelli 
Signed-off-by: David S. Miller

Documentation: networking: phy.txt: MDIO bus reset is optional

2014-03-28T05:38:03+00:00

Update the MDIO bus documentation to mention that the MDIO bus reset
function is completely optional. It became optional with commit
e13934563db0 ("[PATCH] PHY Layer fixup")

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

Documentation: networking: update phy.txt with recent changes

2014-02-17T21:40:09+00:00

The PHY library was missing a bunch of newly added PHY driver callbacks
along with a smallish description of what they do, fix that.

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

net: phy: consolidate PHY reset in phy_init_hw()

2013-12-10T01:38:59+00:00

There are quite a lot of drivers touching a PHY device MII_BMCR
register to reset the PHY without taking care of:

1) ensuring that BMCR_RESET is cleared after a given timeout
2) the PHY state machine resuming to the proper state and re-applying
potentially changed settings such as auto-negotiation

Introduce phy_poll_reset() which will take care of polling the MII_BMCR
for the BMCR_RESET bit to be cleared after a given timeout or return a
timeout error code.

In order to make sure the PHY is in a correct state, phy_init_hw() first
issues a software reset through MII_BMCR and then applies any fixups.

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