The fec has a mdio bus. This adds support for a subnode
in which the phys on this bus can be specified.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
phys start with features initialized from the phy driver
and are eventually limited by of_set_phy_supported. This
does not work with the genphy driver which starts with
no features and overwrites phydev->supported with the
values read from hardware in config_init. This overwrites
the features adjusted by of_set_phy_supported.
To fix this let the genphy driver start with full features
which are then only limited in config_init, but never
extended.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
the phydev->supported field does not necessarily match the hardware
capabilities, it could be limited by the board to force the phy
to a lower speed. In this case make sure the gigabit advertise bits
are cleared on a gigabit phy.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
barebox can transparently handle phys specified in the devicetree.
Use this functionality in the orion-gbe driver. This requires:
- add a device to the orion-gbe ports. This has the port device_node
attached and is set as the parent of the ethernet device so that
the ethernet code finds the correct device_node
- In the mdio-mvebu driver attach the device_node of the mdio device
to the miibus device so that the phy code finds the correct node
- call phy_device_connect instead of of_phy_device_connect.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Tested-by: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
Even when both the ethernet controller and the phy support certain
features a board may have additional limitations. Allow specifying
it in the devicetree.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
When the ethernet device has a device_node then try finding
the associated phy via the phy-handle property.
This makes the phy handling via devicetree transparent to the
ethernet drivers.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
When a mdio bus has a device node attached then register the phys
specified there. This makes it possible to lookup the phys using
phandles later.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
The phy_map should be valid once a phy_device is registered. This
allows registering phys outside of mdiobus_scan.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
phy_device_connect combines searching for a phy with actually attaching
it to the ethernet device. Factor out a phy_device_attach function to
have a function for each purpose. This makes the logic of phy_device_connect
simpler.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Some users such as fs/nfs.c just save the pointer to the packet in the
handler and process it after net_poll() returns. This break when more than
one packet is received using the same buffer.
Signed-off-by: Michael Olbrich <m.olbrich@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
RX DMA Head Descriptor Pointer can get 0 when there is a lot of traffic,
which results in a timeout error. A good way to provoke this error is by
sending lots of ARP requests. This patch makes sure that the RX DMA Head
Descriptor Pointer is set.
The origin driver, from which this is derived, already contains this fix.
Signed-off-by: Christoph Fritz <chf.fritz@googlemail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
This patch adds support for the Synopsys 10/100 Mbps Ethernet MAC used
on some ARC devices and on Rockchip SoCs.
Signed-off-by: Beniamino Galvani <b.galvani@gmail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
This adds a driver for the Ethernet ip found on Marvell Orion SoCs,
which is derived from Marvell Discovery System Controllers (MV643xx).
It is partially based on the corresponding u-boot driver.
Signed-off-by: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
Signed-off-by: Michael Grzeschik <mgr@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
This adds a driver for the mdio bus found on Marvell Orion SoCs as
part of the GBE device and Marvell Armada 370/XP as part of Neta
eth device. Both drivers can share this code, so make it available
independently.
Signed-off-by: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
Signed-off-by: Michael Grzeschik <mgr@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
This implements a of_phy_device_connect to allow DT enabled drivers
to connect to a PHY device by using the PHY's DT node only. It
currently assumes that each PHY node is a child of the corresponding
mdio bus.
Signed-off-by: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
This reorders Kconfig and Makefile for drivers/net alphabetically.
Signed-off-by: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
The AX88772B uses only 11 bits of the header for the actual size. The other bits
are used for something else. This causes dmesg full of messages:
asix_rx_fixup() Bad Header Length
This patch trims the check to only 11 bits. I believe on older chips, the
remaining 5 top bits are unused.
Signed-off-by: Marek Vasut <marek.vasut@gmail.com>
Signed-off-by: Philipp Zabel <philipp.zabel@gmail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
miitool without arguments will try to show status for all phys.
Signed-off-by: Antony Pavlov <antonynpavlov@gmail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
This patch introduces a driver for the OpenCores 10/100 Mbps ethernet
MAC core, ported from Linux kernel with small changes.
Signed-off-by: Beniamino Galvani <b.galvani@gmail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Prober slave_num is needed by cpsw_gmii_sel_am335x to calc reg value.
Signed-off-by: Jan Weitzel <j.weitzel@phytec.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
This is needed when a phy gets registered outsize of phy_device_connect
but has to be attached to an ethernet device later.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
With this phy_device_connect only registers a phy device if it wasn't
registered already. This allows us to register phy devices outside
of ethernet drivers. phy_device_connect will now pick up an already
registered phy given that it's not attached to another ethernet device.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
If during a phy_device_connect a phy already has an ehternet device
this can only mean it's already attached to another device. return -EBUSY
in this case.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
If an ethernet device already has a phy in phy_device_connect all we
have to do is to start autonegotiation. Do this early and bail out
so that for the rest of the code it's clear that we have to search for
a phy device.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
phy_register_device() currently requires an attached ethernet device.
This is not needed, a phy device can equally well be registered as
a standalone device without an ethernet device. Remove the need
for an attached ethernet device in phy_register_device. Also, make
the edev <-> phy connection on a registered device which simplifies
the code.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Sascha Hauer
Michael Olbrich
Franck Jullien
Christoph Fritz
Beniamino Galvani
Antony Pavlov
Alexander Shiyan
Sebastian Hesselbarth
Lucas Stach
Philipp Zabel
Marek Vasut
Jan Weitzel