Commit graph

74 commits

Author SHA1 Message Date
Ramon Fried
65f2266ed6 net: phy: Remove inline definitions from convinience functions
The convinience functions are not that small and they caused
bloated text segments because of their usage.
There was no need to inline them in the first place, as
they're not part of a fastpath.

Signed-off-by: Ramon Fried <rfried.dev@gmail.com>
Reviewed-by: Michael Trimarchi <michael@amarulasolutions.com>
Reviewed-by: Marek Behún <kabel@kernel.org>
Reviewed-by: Vladimir Oltean <vladimir.oltean@nxp.com>
2022-08-08 10:50:20 -04:00
Tom Rini
7f418ea598 Merge branch 'next' of https://source.denx.de/u-boot/custodians/u-boot-net
- DM9000 DM support
- tftp server bug fix
- mdio ofnode support functions
- Various phy fixes and improvements.

[trini: Fixup merge conflicts in drivers/net/phy/ethernet_id.c
drivers/net/phy/phy.c include/phy.h]
2022-04-15 08:10:32 -04:00
Michael Trimarchi
a2f5c9366a net: phy: nxp-tja11xx: Add NXP TJA11xx PHY driver
Add driver for the NXP TJA1100 and TJA1101 PHYs. These PHYs are special
BroadRReach 100BaseT1 PHYs used in automotive.

Signed-off-by: Michael Trimarchi <michael@amarulasolutions.com>
Signed-off-by: Ariel D'Alessandro <ariel.dalessandro@collabora.com>
Reviewed-by: Ramon Fried <rfried.dev@gmail.com>
2022-04-12 19:10:44 +02:00
Ariel D'Alessandro
087baf80ec net: phy: Add phy_modify() accessor
Add read-modify-write unlocked accessor for accessing a PHY register.

Signed-off-by: Ariel D'Alessandro <ariel.dalessandro@collabora.com>
Reviewed-by: Ramon Fried <rfried.dev@gmail.com>
2022-04-12 19:10:44 +02:00
Ariel D'Alessandro
01c67a381c phy: nxp-c45-tja11xx: Rename functions to be c45 tja11xx specific
This driver supports NXP C45 TJA11XX PHYs, but there're also other NXP
TJA11XX PHYs. Let's rename functions in this driver to be c45 variant
specific, so further drivers can be introduced adding support for NXP
TJA11XX PHYs.

Signed-off-by: Ariel D'Alessandro <ariel.dalessandro@collabora.com>
2022-04-12 19:10:44 +02:00
Nate Drude
d79f1a8569 phy: adin: add driver for Analog Devices ADIN1300 PHY
The current implementation configures RGMII using device tree phy-mode
property and then calls genphy_config

adin_config_rgmii_mode is derived from:
https://github.com/varigit/linux-imx/blob/lf-5.10.y_var04/drivers/net/phy/adin.c#L218-L262

Signed-off-by: Nate Drude <nate.d@variscite.com>
Reviewed-by: Ramon Fried <rfried.dev@gmail.com>
2022-04-10 08:44:13 +03:00
Marek Behún
e24b58f5ed net: phy: don't require PHY interface mode during PHY creation
Currently we require PHY interface mode to be known when
finding/creating the PHY - the functions
  * phy_connect_phy_id()
  * phy_device_create()
  * create_phy_by_mask()
  * search_for_existing_phy()
  * get_phy_device_by_mask()
  * phy_find_by_mask()
all require the interface parameter, but the only thing done with it is
that it is assigned to phydev->interface.

This makes it impossible to find a PHY device without overwriting the
set mode.

Since the interface mode is not used during .probe() and should be used
at first in .config(), drop the interface parameter from these
functions. Make the default value of phydev->interface (in
phy_device_create()) to be PHY_INTERFACE_MODE_NA. Move the interface
parameter to phy_connect_dev(), where it should be.

Change all occurrences treewide. In occurrences where we don't call
phy_connect_dev() for some reason (they only configure the PHY without
connecting it to an ethernet controller), set
  phydev->interface = value from phy_find_by_mask call.

Signed-off-by: Marek Behún <marek.behun@nic.cz>
Reviewed-by: Ramon Fried <rfried.dev@gmail.com>
Reviewed-by: Vladimir Oltean <vladimir.oltean@nxp.com>
2022-04-10 08:44:13 +03:00
Marek Behún
79bef5fb1f net: phy: use ->is_c45 instead of is_10g_interface()
Use phydev->is_c45 instead of is_10g_interface(phydev->interface) to
determine whether clause 45 protocol should be used.

Signed-off-by: Marek Behún <marek.behun@nic.cz>
Reviewed-by: Ramon Fried <rfried.dev@gmail.com>
2022-04-10 08:44:13 +03:00
Marek Behún
123ca114e0 net: introduce helpers to get PHY interface mode from a device/ofnode
Add helpers ofnode_read_phy_mode() and dev_read_phy_mode() to parse the
"phy-mode" / "phy-connection-type" property. Add corresponding UT test.

Use them treewide.

This allows us to inline the phy_get_interface_by_name() into
ofnode_read_phy_mode(), since the former is not used anymore.

Signed-off-by: Marek Behún <marek.behun@nic.cz>
Reviewed-by: Ramon Fried <rfried.dev@gmail.com>
Tested-by: Patrice Chotard <patrice.chotard@foss.st.com>
2022-04-10 08:44:12 +03:00
T Karthik Reddy
9b529a972d net: phy: Fix rgmii-id phy reset timeout issue
While creating a phy device using phy_device_create(), we need to
provide a valid phyaddr instead of 0 causing phy address being
registered as 0 with mdio bus and shows mdio phy list as below

ZynqMP>  mdio list
eth0:
0 - TI DP83867 <--> ethernet@ff0b0000
eth1:
0 - TI DP83867 <--> ethernet@ff0c0000

Also PHY soft reset is being requested on 0 instead of valid
address causing "PHY reset timed out" error.

So add phyaddr argument to phy_connect_phy_id() and to its prototype
to create phy device with valid phyaddress.

Fixes: a744a284e3 ("net: phy: Add support for ethernet-phy-id with gpio reset")
Signed-off-by: T Karthik Reddy <t.karthik.reddy@xilinx.com>
Signed-off-by: Michal Simek <michal.simek@xilinx.com>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Link: https://lore.kernel.org/r/fe35fddb9faa5af577ffdfabaec6879c935a30f8.1648562755.git.michal.simek@xilinx.com
2022-04-05 15:10:54 +02:00
Michal Simek
a744a284e3 net: phy: Add support for ethernet-phy-id with gpio reset
Ethernet phy like dp83867 is using strapping resistors to setup PHY
address. On Xilinx boards strapping is setup on wires which are connected
to SOC where internal pull ups/downs influnce phy address. That's why there
is a need to setup pins properly (via pinctrl driver for example) and then
perform phy reset. I can be workarounded by reset gpio done for mdio bus
but this is not working properly when multiply phys sitting on the same
bus. That's why it needs to be done via ethernet-phy-id driver where dt
binding has gpio reset per phy.

DT binding is available here:
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/tree/Documentation/devicetree/bindings/net/ethernet-phy.yaml

The driver is are reading the vendor and device id from valid phy node
using ofnode_read_eth_phy_id() and creating a phy device.
Kconfig PHY_ETHERNET_ID symbol is used because not every platform has gpio
support.

Signed-off-by: Michal Simek <michal.simek@xilinx.com>
Signed-off-by: T Karthik Reddy <t.karthik.reddy@xilinx.com>
Link: https://lore.kernel.org/r/70ab7d71c812b2c972d48c129e416c921af0d7f5.1645627539.git.michal.simek@xilinx.com
2022-03-09 12:43:16 +01:00
Michal Simek
3249116d83 net: phy: Remove static return type for phy_device_create()
Remove static return type for phy_device_create() to avoid file scope for
this function. Also add required prototype in phy.h.

Signed-off-by: Michal Simek <michal.simek@xilinx.com>
Signed-off-by: T Karthik Reddy <t.karthik.reddy@xilinx.com>
Link: https://lore.kernel.org/r/1517f4053403fbd53e899d500e7485d068a4f0b6.1645627539.git.michal.simek@xilinx.com
2022-03-09 12:43:16 +01:00
Wolfgang Denk
0cf207ec01 WS cleanup: remove SPACE(s) followed by TAB
Signed-off-by: Wolfgang Denk <wd@denx.de>
2021-09-30 09:08:16 -04:00
Vladimir Oltean
77b11f7604 net: replace the "xfi" phy-mode with "10gbase-r"
As part of the effort of making U-Boot work with the same device tree as
Linux, there is an issue with the "xfi" phy-mode. To be precise, in
Linux there was a discussion (for those who have time to read:
https://lore.kernel.org/netdev/1576768881-24971-2-git-send-email-madalin.bucur@oss.nxp.com/)

which led to a patch:
https://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next.git/commit/?id=c114574ebfdf42f826776f717c8056a00fa94881

TL;DR: "xfi" was standardized in Linux as "10gbase-r".

This patch changes the relevant occurrences in U-Boot to use "10gbase-r"
instead of "xfi" wherever applicable.

Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Reviewed-by: Ramon Fried <rfried.dev@gmail.com>
2021-09-28 18:50:56 +03:00
Radu Pirea (NXP OSS)
3ef2050a6a phy: add nxp tja1103 phy driver
Add nxp tja1103 phy driver.

Signed-off-by: Radu Pirea (NXP OSS) <radu-nicolae.pirea@oss.nxp.com>
Reviewed-by: Ramon Fried <rfried.dev@gmail.com>
2021-07-06 05:22:41 +03:00
Vladimir Oltean
d0781c95bc net: phy: introduce fixed_phy_create for DSA CPU ports
The DSA (Distributed Switch Architecture) implementation has made a
design decision when it got introduced to the Linux kernel in 2008.
That was to hide away from the user the CPU-facing Ethernet MAC, since
it does not make sense to register it as a struct net_device (UCLASS_ETH
udevice for U-Boot), because that would never be beneficial for a user:
they would not be able to use it for traffic, since conceptually, a
packet delivered to the CPU port should loop back into the system.

Nonetheless, DSA has had numerous growing pains due to the lack of a
struct net_device for the CPU port, but so far it has overcome them.
It is unlikely at this stage of maturity that this aspect of it will
change.

We would like U-Boot to present the same information as Linux, to be at
parity in terms of number of interfaces, so that ethNaddr environment
variables could directly be associated between U-Boot and Linux.
Therefore, we would implicitly like U-Boot to hide the CPU port from the
user as well.

But the paradox is that DSA still needs a struct phy_device to inform
the driver of the parameters of the link that it should configure the
CPU port to. The problem is that the phy_device is typically returned
via a call to phy_connect, which needs an udevice to attach the PHY to,
and to search its ofnode for the 'fixed-link' property. But we don't
have an udevice to present for the CPU port.

Since 99% of DSA setups are MAC-to-MAC connections between the switch
and the host Ethernet controller, the struct phy_device is going to be a
fixed PHY. This simplifies things quite a bit. In U-Boot, a fixed PHY
does not need an MDIO bus, and does not need an attached dev either.
Basically, the phy_connect call doesn't do any connection, it just
creates the fixed PHY.

The proposal of this patch is to introduce a new fixed_phy_create
function which will take a single argument: the ofnode that holds this:

	port@4 {
		reg = <4>;
		phy-mode = "internal";

		fixed-link {
			speed = <2500>;
			full-duplex;
		};
	};

and probe a fixed PHY driver using the information from this ofnode.
DSA will probably be the only user of this function.

Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Reviewed-by: Claudiu Manoil <claudiu.manoil@nxp.com>
2021-02-16 11:48:20 -05:00
Abbie Chang
a70d7b0192 net: phy: ca_phy: Add driver for CAxxxx SoCs
Add phy driver support for MACs embedded inside Cortina Access SoCs

Signed-off-by: Abbie Chang <abbie.chang@cortina-access.com>
Signed-off-by: Alex Nemirovsky <alex.nemirovsky@cortina-access.com>

CC: Joe Hershberger <joe.hershberger@ni.com>
CC: Tom Rini <trini@konsulko.com>
CC: Aaron Tseng <aaron.tseng@cortina-access.com>

Moved out PHY specific code out of Cortina NI Ethernet driver
and into a Cortina Access PHY interface driver
2021-01-27 10:47:47 -05:00
Thirupathaiah Annapureddy
7def4e621b include: phy: fix NULL pointer check in phy_write()
phy_write() uses bus->write() instead of bus->read(). This means NULL
pointer pre-check needs to happen on bus->write instead of bus->read.

Signed-off-by: Thirupathaiah Annapureddy <thiruan@linux.microsoft.com>
Reviewed-by: Michal Simek <michal.simek@xilinx.com>
2020-09-16 16:54:00 -04:00
Simon Glass
2a64ada78c net: Drop dm.h header file from phy.h
This header file should not be included in other header files. Remove it
and use other headers and C inclusions instead.

Signed-off-by: Simon Glass <sjg@chromium.org>
2020-08-03 22:19:54 -04:00
Dan Murphy
535247a9e4 net: phy: Add helper routines to set and clear bits
Add phy_set/clear_bit helper routines so that ported drivers from the
kernel can use these functions.

Acked-by: Michal Simek <michal.simek@xilinx.com>
Signed-off-by: Dan Murphy <dmurphy@ti.com>
2020-06-12 13:17:23 -04:00
Dan Murphy
ea756fb8b7 net: phy: Fix kernel doc issues in phy.h
Fix kernel doc warnings in phy.h.  Mostly the warnings were due to the
return missing the semi-colon.

Acked-by: Michal Simek <michal.simek@xilinx.com>
Signed-off-by: Dan Murphy <dmurphy@ti.com>
2020-06-12 13:17:23 -04:00
Dan Murphy
6325c8bc48 net: phy: Add missing kernel doc to phy functions
Add kernel doc to the phy_read/write utility functions in phy.h

Acked-by: Michal Simek <michal.simek@xilinx.com>
Signed-off-by: Dan Murphy <dmurphy@ti.com>
2020-06-12 13:17:23 -04:00
Alex Marginean
9810489ca8 net: phy: add XFI, USXGMII types to is_10g_interface() helper
The helper is used to reset PHYs on connect and it determines the clause
to use (C22/C45) based on interface type.  This fixes 'PHY reset timed out'
warnings in console for USXGMII/XFI PHYs.

Signed-off-by: Alex Marginean <alexandru.marginean@nxp.com>
Acked-by: Joe Hershberger <joe.hershberger@ni.com>
2020-03-09 18:11:25 -05:00
Samuel Mendoza-Jonas
e2ffeaa162 phy: Include NC-SI in phy setup
Add NC-SI to the usual phy handling. This makes two notable changes:
- Somewhat similar to a fixed phy, phy_connect() will create an NC-SI
phy if CONFIG_PHY_NCSI is defined.
- An early return is added to phy_read() and phy_write() to handle a
case like the NC-SI phy which does not define a bus.

Signed-off-by: Samuel Mendoza-Jonas <sam@mendozajonas.com>
Reviewed-by: Joel Stanley <joel@jms.id.au>
Acked-by: Joe Hershberger <joe.hershberger@ni.com>
2020-03-09 18:11:23 -05:00
Samuel Mendoza-Jonas
f641a8ac93 phy: Add support for the NC-SI protocol
This introduces support for the NC-SI protocol, modelled as a phy driver
for other ethernet drivers to consume.

NC-SI (Network Controller Sideband Interface) is a protocol to manage a
sideband connection to a proper network interface, for example a BMC
(Baseboard Management Controller) sharing the NIC of the host system.
Probing and configuration occurs by communicating with the "remote" NIC
via NC-SI control frames (Ethernet header 0x88f8).

This implementation is roughly based on the upstream Linux
implementation[0], with a reduced feature set and an emphasis on getting
a link up as fast as possible rather than probing the full possible
topology of the bus.
The current phy model relies on the network being "up", sending NC-SI
command frames via net_send_packet() and receiving them from the
net_loop() loop (added in a following patch).

The ncsi-pkt.h header[1] is copied from the Linux kernel for consistent
field definitions.

[0]: https://github.com/torvalds/linux/tree/master/net/ncsi
[1]: https://github.com/torvalds/linux/blob/master/net/ncsi/ncsi-pkt.h

Signed-off-by: Samuel Mendoza-Jonas <sam@mendozajonas.com>
Reviewed-by: Joel Stanley <joel@jms.id.au>
Acked-by: Joe Hershberger <joe.hershberger@ni.com>
2020-03-09 18:11:23 -05:00
Simon Glass
f217651575 dm: core: Drop the inclusion of linux/compat.h in dm.h
Most files don't need this header and it pulls in quite of lots of stuff,
malloc() in particular. Drop it.

Signed-off-by: Simon Glass <sjg@chromium.org>
2020-02-05 21:48:22 -07:00
Alex Marginean
d718b697a1 include: phy: add data field for private driver data
This is useful to carry custom information between the driver structure
associated with a specific HW and the driver code.

Signed-off-by: Alex Marginean <alexandru.marginean@nxp.com>
Acked-by: Joe Hershberger <joe.hershberger@ni.com>
2019-12-09 09:47:42 -06:00
Siva Durga Prasad Paladugu
f41e588c03 net: phy: Add gmiitorgmii converter support
This patch adds support for gmiitorgmii converter.
This converter sits between the MAC and the external phy
MAC <==> GMII2RGMII <==> RGMII_PHY.
The ethernet driver probes this bridge and this bridge driver
probes real phy driver and invokes the real phy functionalities
as requested. This bridge just needs to be configured based on
real phy negotiated speed and duplex.

Signed-off-by: Siva Durga Prasad Paladugu <siva.durga.paladugu@xilinx.com>
Signed-off-by: Michal Simek <michal.simek@xilinx.com>
2019-10-08 09:41:27 +02:00
Alex Marginean
c38ac2893c net: add comments to phy APIs
Added a comment on the limitations of phy_find_by_mask API when scanning
MDIO buses with multiple PHYs present.  Added short descriptions to the
other APIs in phy.h for consistency.

Signed-off-by: Alex Marginean <alexm.osslist@gmail.com>
Acked-by: Joe Hershberger <joe.hershberger@ni.com>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
2019-07-18 16:37:13 -05:00
Carlo Caione
4f6746dc7f net: phy: Add generic helpers to access MMD PHY registers
Two new helper functions (phy_read_mmd() and phy_write_mmd()) are added
to allow access to the MMD PHY registers.

The MMD PHY registers can be accessed by several means:

1. Using two new MMD access function hooks in the PHY driver. These
functions can be implemented when the PHY driver does not support the
standard IEEE Compatible clause 45 access mechanism described in clause
22 or if the PHY uses its own non-standard access mechanism.

2. Direct access for C45 PHYs and C22 PHYs when accessing the reachable
DEVADs.

3. The standard clause 45 access extensions to the MMD registers through
the indirection registers (clause 22) in all the other cases.

Signed-off-by: Carlo Caione <ccaione@baylibre.com>
Acked-by: Joe Hershberger <joe.hershberger@ni.com>
2019-05-07 14:51:55 -05:00
Pankaj Bansal
b3eabd82f2 net: phy: Add clause 45 identifier to phy_device
The phy devices can be accessed via clause 22 or via clause 45.
This information can be deduced when we read phy id. if the phy id
is read without giving any MDIO Manageable Device Address (MMD), then
it conforms to clause 22. otherwise it conforms to clause 45.

Signed-off-by: Pankaj Bansal <pankaj.bansal@nxp.com>
Acked-by: Joe Hershberger <joe.hershberger@ni.com>
2019-01-24 11:35:26 -06:00
Priyanka Jain
1ddcf5edbb net/phy: Add phy-id for IN112525_S03
Signed-off-by: Priyanka Jain <priyanka.jain@nxp.com>
Acked-by: Joe Hershberger <joe.hershberger@ni.com>
2018-10-24 14:45:38 -05:00
Grygorii Strashko
eef0b8a930 net: phy: add ofnode node to struct phy_device
Now the UCLASS_ETH device "node" field is owerwritten by some network drivers in
case of Ethernet PHYs which are linked to UCLASS_ETH device using
"phy-handle" DT property and when Ethernet PHY driver needs to read some
additional information from DT. In such cases following happens (in
general):

- network drivers
	priv->phydev = phy_connect(priv->bus, priv->phyaddr, dev,
				   priv->interface);
	<-- phydev is connected to dev which is UCLASS_ETH device

	if (priv->phy_of_handle > 0)
		dev_set_of_offset(priv->phydev->dev, priv->phy_of_handle);
	<-- phydev->dev->node is overwritten by phy-handle DT node

- PHY driver in .config() callback
	int node = dev_of_offset(dev);
	<-- PHY driver uses overwritten dev->node
        const void *fdt = gd->fdt_blob;

	 if (fdtdec_get_bool(fdt, node, "property"))
		...

As result, UCLASS_ETH device can't be used any more for DT accessing.

This patch adds additional ofnode node field to struct phy_device which can
be set explicitly by network drivers and used by PHY drivers, so
overwriting can be avoided. Also add helper function phy_get_ofnode()
which will check and return phy_device->node or dev_ofnode(phydev->dev) for
backward compatibility with existing drivers.

Signed-off-by: Grygorii Strashko <grygorii.strashko@ti.com>
Acked-by: Joe Hershberger <joe.hershberger@ni.com>
2018-07-26 14:08:22 -05:00
Joe Hershberger
f070b1a27a phy: Break include cycle
Because some phy wants to export some functions [1], export.h was
including the whole phy subsystem which pulls in lots of stuff that
causes some ordering and redefinition issues. Split out the only part
that is actually needed in export.h and include it there and in phy.h.

[1] commit 9527931507 ("board/ls2085rdb: Export functions for
			  standalone AQ FW load apps")

Signed-off-by: Joe Hershberger <joe.hershberger@ni.com>
2018-07-26 14:08:22 -05:00
Kunihiko Hayashi
ff114e0f76 net: include/phy.h: add new mode for internal phy
Add the new mode to indicate a built-in PHY.
This will be used by UniPhier AVE ethernet driver.

Signed-off-by: Kunihiko Hayashi <hayashi.kunihiko@socionext.com>
Reviewed-by: Marek Vasut <marek.vasut@gmail.com>
Acked-by: Joe Hershberger <joe.hershberger@ni.com>
2018-06-13 13:54:16 -05:00
Vicentiu Galanopulo
552e7c57d0 net/phy/cortina: Add support for CS4223 PHY
Add support for Cortina CS4223 10G PHY
  - As per the CS4223 specs, an EEPROM module is
    connected to the PHY. At startup the PHY reads
    the firmware line and tries to load the firmware
    into the internal memory.
  - This driver reads the EEPROM status
    and checks if firmware has been loaded

Signed-off-by: Vicentiu Galanopulo <vicentiu.galanopulo@nxp.com>
Acked-by: Joe Hershberger <joe.hershberger@ni.com>
2018-06-13 13:54:15 -05:00
Tom Rini
83d290c56f SPDX: Convert all of our single license tags to Linux Kernel style
When U-Boot started using SPDX tags we were among the early adopters and
there weren't a lot of other examples to borrow from.  So we picked the
area of the file that usually had a full license text and replaced it
with an appropriate SPDX-License-Identifier: entry.  Since then, the
Linux Kernel has adopted SPDX tags and they place it as the very first
line in a file (except where shebangs are used, then it's second line)
and with slightly different comment styles than us.

In part due to community overlap, in part due to better tag visibility
and in part for other minor reasons, switch over to that style.

This commit changes all instances where we have a single declared
license in the tag as both the before and after are identical in tag
contents.  There's also a few places where I found we did not have a tag
and have introduced one.

Signed-off-by: Tom Rini <trini@konsulko.com>
2018-05-07 09:34:12 -04:00
Florian Fainelli
137963d71a net: phy: Add Broadcom BCM53xx switch driver
Add a minimalistic Broadcom BCM53xx (roboswitch) switch driver similar
to the Marvell MV88E617x. This takes care of configuring the minimum
amount out of the switch hardware such that each user visible port
(configurable) and the CPU port can forward packets between each other
while preserving isolation with other ports.

This is useful for e.g: the Lamobo R1 board featuring a Broadcom
BCM53125 switch.

Reviewed-by: Stefan Roese <sr@denx.de>
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
2018-01-15 12:05:21 -06:00
Neil Armstrong
8995a96d1d net: phy: Add Amlogic Meson GXL Internal PHY support
The Amlogic Meson GXL/GXM families embeds an internal RMII Ethernet PHY.

The PHY acts as a generic PHY but needs a slight configuration right
before it's configuration.

Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
2017-11-17 07:44:13 -05:00
Alexandru Gagniuc
d397f7c45b net: phy: micrel: Separate KSZ9000 drivers from KSZ8000 drivers
The KS8721BL and KSZ9021 PHYs are software-incompatible, yet they
share the same ID. Drivers for bothe PHYs cannot safely coexist, so
the solution was to use #ifdefs to select between the two drivers.

As a result KSZ9031, which has a unique ID, is now caught in the
crossfire. Unless CONFIG_PHY_MICREL_KSZ9031 is defined, the KSZ9031
will not function properly, as some essential configuration code is
ifdef'd-out.

To prevent such situations, move the KSZ9000 drivers to a separate
file, and place them under a separate Kconfig option. While it is
possible to enable both KSZ8000 and KSZ9000 drivers at the same time,
the assumption is that it is highly unlikely for a system to contain
both a KSZ8000 and a KSZ9000 PHY, and that only one of the drivers
will be enabled at any given time.

Signed-off-by: Alexandru Gagniuc <alex.g@adaptrum.com>
Reviewed-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com>
Acked-by: Joe Hershberger <joe.hershberger@ni.com>
2017-08-07 15:18:30 -05:00
Tom Rini
f532703665 Merge git://www.denx.de/git/u-boot-marvell
This includes Marvell mvpp2 patches with the ethernet support for the
ARMv8 Armada 7k/8k platforms. The ethernet patches are all acked by Joe
and he is okay with me pushing them via the Marvell tree.
2017-04-04 09:17:56 -04:00
Stefan Roese
d11e934746 net: include/phy.h: Add new PHY interface modes
This patch adds the new PHY interface modes XAUI, RXAUI and SFI that will
be used by the PPv2.2 support in the Marvell mvpp2 ethernet driver.

Signed-off-by: Stefan Roese <sr@denx.de>
Cc: Stefan Chulski <stefanc@marvell.com>
Cc: Kostya Porotchkin <kostap@marvell.com>
Cc: Nadav Haklai <nadavh@marvell.com>
Acked-by: Joe Hershberger <joe.hershberger@ni.com>
2017-03-29 07:42:55 +02:00
Hannes Schmelzer
db40c1aa1c drivers/net/phy: add fixed-phy / fixed-link support
This patch adds support for having a "fixed-link" to some other MAC
(like some embedded switch-device).

For this purpose we introduce a new phy-driver, called "Fixed PHY".

Fixed PHY works only with CONFIG_DM_ETH enabled, since the fixed-link is
described with a subnode below ethernet interface.

Most ethernet drivers (unfortunately not all are following same scheme
for searching/attaching phys) are calling "phy_connect(...)" for getting
a phy-device.
At this point we link in, we search here for a subnode called "fixed-
link", once found we start phy_device_create(...) with the special phy-
id PHY_FIXED_ID (0xa5a55a5a).

During init the "Fixed PHY" driver has registered with this id and now
gets probed, during probe we get all the details about fixed-link out of
dts, later on the phy reports this values.

Signed-off-by: Hannes Schmelzer <hannes.schmelzer@br-automation.com>

Signed-off-by: Hannes Schmelzer <oe5hpm@oevsv.at>
Acked-by: Joe Hershberger <joe.hershberger@ni.com>
Reviewed-by: Christian Gmeiner <christian.gmeiner@gmail.com>
2017-03-26 09:58:26 -05:00
John Haechten
a5fd13ad19 net: phy: MSCC Add Support for VSC8530-VSC8531-VSC8540-VSC8541
Signed-off-by: John Haechten <john.haechten@microsemi.com>
Acked-by: Joe Hershberger <joe.hershberger@ni.com>
2017-02-08 16:32:58 -06:00
Dan Murphy
3c221af3c3 net: phy: Add phy_interface_is_sgmii to phy.h
Add a helper to phy.h to identify whether the
phy is configured for SGMII all variables.

Signed-off-by: Dan Murphy <dmurphy@ti.com>
Reviewed-by: Mugunthan V N <mugunthanvnm@ti.com>
Reviewed-by: Michal Simek <michal.simek@xilinx.com>
Tested-by: Mugunthan V N <mugunthanvnm@ti.com>
Acked-by: Joe Hershberger <joe.hershberger@ni.com>
2016-05-24 11:42:05 -05:00
Dan Murphy
3ab72fe807 net: phy: Move is_rgmii helper to phy.h
Move the phy_interface_is_rgmii to the phy.h
file for all phy's to be able to use the API.

This now aligns with the Linux kernel based on
commit e463d88c36d42211aa72ed76d32fb8bf37820ef1

Signed-off-by: Dan Murphy <dmurphy@ti.com>
Reviewed-by: Mugunthan V N <mugunthanvnm@ti.com>
Reviewed-by: Michal Simek <michal.simek@xilinx.com>
Tested-by: Mugunthan V N <mugunthanvnm@ti.com>
Acked-by: Joe Hershberger <joe.hershberger@ni.com>
2016-05-24 11:42:05 -05:00
Kevin Smith
24ae3961f8 net: phy: Add PHY driver for mv88e61xx switches
The previous mv88e61xx driver was a driver for configuring the
switch, but did not integrate with the PHY/networking system, so
it could not be used as a PHY by U-boot.  This is a complete
rework to support this device as a PHY.

Signed-off-by: Kevin Smith <kevin.smith@elecsyscorp.com>
Acked-by: Prafulla Wadaskar <prafulla@marvell.com>
Cc: Albert ARIBAUD <albert.u.boot@aribaud.net>
Cc: Joe Hershberger <joe.hershberger@ni.com>
Cc: Stefan Roese <sr@denx.de>
Cc: Marek Vasut <marex@denx.de>
Acked-by: Joe Hershberger <joe.hershberger@ni.com>
2016-05-24 11:39:04 -05:00
Siva Durga Prasad Paladugu
ed6fad3e25 phy: Add phy driver support for xilinx PCS/PMA core
Add phy driver support for xilinx PCS/PMA core

Signed-off-by: Siva Durga Prasad Paladugu <sivadur@xilinx.com>
Signed-off-by: Kedareswara rao Appana <appanad@xilinx.com>
Signed-off-by: Michal Simek <michal.simek@xilinx.com>
2016-04-04 20:10:44 +02:00
Shaohui Xie
ddcd1f3084 net: phy: introduce a quirk PHY_FLAG_BROKEN_RESET
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 <Shaohui.Xie@nxp.com>
Acked-by: Joe Hershberger <joe.hershberger@ni.com>
2016-01-28 13:20:30 -06:00
Alexey Brodkin
b18acb0a11 drivers/net/phy: introduce phy_set_supported()
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 <abrodkin@synopsys.com>
Cc: Joe Hershberger <joe.hershberger@ni.com>
Acked-by: Joe Hershberger <joe.hershberger@ni.com>
2016-01-28 12:32:42 -06:00