u-boot.git/drivers/net/phy/phy.c, branch v2016.03

net: phy: introduce a quirk PHY_FLAG_BROKEN_RESET

2016-01-28T19:20:30+00:00

Current driver always performs a phy soft reset when connecting the phy
device, but soft reset is not always supported by a phy device, so
introduce a quirk PHY_FLAG_BROKEN_RESET to let such a phy device to skip
soft reset. This commit uses 'flags' of phy device structure to store the
quirk.

Signed-off-by: Shaohui Xie 
Acked-by: Joe Hershberger

net: phy: Use 'autoneg' flag from phydev

2016-01-28T19:20:29+00:00

Use the 'autoneg' flag available in phydev when checking if
autoneg is in use.

The previous implementation was checking directly in the PHY
if autoneg was supported. Some PHYs will report that autoneg
is supported, even when it is disabled. Thus it is not possible
to use that bit to determine if autoneg is currently in use or
not.

Signed-off-by: Alexandre Messier 
Acked-by: Joe Hershberger

net: phy: Set ANRESTART in setup_forced

2016-01-28T19:20:28+00:00

When configuring a PHY in fixed (forced) link mode, in order for
the changes to be applied, either one of these conditions must
be triggered:
	1- PHY is reset
	2- Autoneg is restarted
	3- PHY transitions from power-down to power-up

Neither of these is currently done, so effectively the fixed link
configuration is not applied in the PHY.

Fix this by setting the Autoneg restart bit.

Signed-off-by: Alexandre Messier 
Acked-by: Joe Hershberger

drivers/net/phy: introduce phy_set_supported()

2016-01-28T18:32:42+00:00

This new function will allow MAC drivers to override supported
capabilities of the phy. It is required when MAC cannot handle all
speeds supported by phy.

For example phy supports up-to 1Gb connections while MAC may only work
in modes up to 100 or even 10 Mbit/sec.

Signed-off-by: Alexey Brodkin 
Cc: Joe Hershberger 
Acked-by: Joe Hershberger

net: phy: genphy: Allow overwriting features

2016-01-28T18:32:41+00:00

of_set_phy_supported allows overwiting hardware capabilities of
a phy with values from the devicetree. This does not work with
the genphy driver though because the genphys config_init function
will overwrite all values adjusted by of_set_phy_supported. Fix
this by initialising the genphy features in the phy_driver struct
and in config_init just limit the features to the ones the hardware
can actually support. The resulting features are a subset of the
devicetree specified features and the hardware features.

This is a copy of the patch from Linux kernel, see
http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=c242a47238fa2a6a54af8a16e62b54e6e031d4bc

Signed-off-by: Sascha Hauer 
Signed-off-by: Alexey Brodkin 
Cc: Joe Hershberger 
Acked-by: Joe Hershberger

net: phy: ensure Gigabit features are masked off if requested

2016-01-28T18:31:30+00:00

When a Gigabit PHY device is connected to a 10/100Mbits capable Ethernet
MAC, the driver will restrict the phydev->supported modes to mask off
Gigabit. If the Gigabit PHY comes out of reset with the Gigabit features
set by default in MII_CTRL1000, it will keep advertising these feature,
so by the time we call genphy_config_advert(), the condition on
phydev->supported having the Gigabit features on is false, and we do not
update MII_CTRL1000 with updated values, and we keep advertising Gigabit
features, eventually configuring the PHY for Gigabit whilst the Ethernet
MAC does not support that.

This patches fixes the problem by ensuring that the Gigabit feature bits
are always cleared in MII_CTRL1000, if the PHY happens to be a Gigabit
PHY, and then, if Gigabit features are supported, setting those and
updating MII_CTRL1000 accordingly.

This is a copy of patch from Linux kernel, see
http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=5273e3a5ca94fbeb8e07d31203069220d5e682aa

Signed-off-by: Florian Fainelli 
Signed-off-by: Alexey Brodkin 
Cc: Joe Hershberger 
Acked-by: Joe Hershberger

net: phy: do not read configuration register on reset

2016-01-28T18:22:00+00:00

When doing a software reset, the reset flag should be written without
other bits set. Writing the current state will lead to restoring the
state of the PHY (e.g. Powerdown), which is not what is expected from
a software reset.

Signed-off-by: Stefan Agner 
Acked-by: Michael Welling 
Reviewed-by: Bin Meng 
Acked-by: Joe Hershberger

Move console definitions into a new console.h file

2015-11-20T03:27:50+00:00

The console includes a global variable and several functions that are only
used by a small subset of U-Boot files. Before adding more functions, move
the definitions into their own header file.

Signed-off-by: Simon Glass

net: phy: Add support for Texas Instruments DP83867

2015-11-19T12:09:21+00:00

Code is taken from Linux kernel driver (v4.2).

Signed-off-by: Edgar E. Iglesias 
Signed-off-by: Michal Simek 
Reviewed-by: Tom Rini 
Acked-by: Joe Hershberger

net: phy: Test previous phydev->dev against new mac dev

2015-10-29T19:05:49+00:00

In phy_connect_dev(), if the phy device has an accociated mac device
before, a warning message will be printed. But we should test the
old device against the new one, if they are actually the same one,
don't print the warning message.

Signed-off-by: Bin Meng 
Acked-by: Joe Hershberger