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path: root/drivers/net/phy/phy.c
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2019-05-08net: phy: Fix return value check phy_probeSiva Durga Prasad Paladugu
Don't ignore return value of phy_probe() call as the probe may fail and it needs to be reported. Signed-off-by: Siva Durga Prasad Paladugu <siva.durga.paladugu@xilinx.com> Signed-off-by: Michal Simek <michal.simek@xilinx.com> Acked-by: Joe Hershberger <joe.hershberger@ni.com>
2019-05-08net: phy: Reloc next and prev pointers inside phy_driversSiva Durga Prasad Paladugu
This patch relocates the pointers inside phy_drivers incase of manual reloc. Without this reloc, these points to invalid pre relocation address and hence causes exception or hang. Signed-off-by: Siva Durga Prasad Paladugu <siva.durga.paladugu@xilinx.com> Signed-off-by: Michal Simek <michal.simek@xilinx.com> Acked-by: Joe Hershberger <joe.hershberger@ni.com>
2019-05-07net: phy: Add generic helpers to access MMD PHY registersCarlo Caione
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>
2019-04-07net: phy: implement fallback mechanism for negative phy adressesHannes Schmelzer
Negative phy-addresses can occour if the caller function was not able to determine a valid phy address (from device-tree for example). In this case we catch this here and search for ANY phy device on the given mdio- bus. Signed-off-by: Hannes Schmelzer <hannes.schmelzer@br-automation.com> Tested-by: Michal Simek <michal.simek@xilinx.com> Tested-by: Lukasz Majewski <lukma@denx.de>
2019-01-24Merge branch 'master' of git://git.denx.de/u-boot-netTom Rini
2019-01-24net: phy: Add clause 45 identifier to phy_devicePankaj Bansal
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>
2019-01-24net: phy: Move fixed link code to separate routineSiva Durga Prasad Paladugu
This patch moves fixed-link functionality code to a separate routine inorder to make it more modular and cleaner. Signed-off-by: Siva Durga Prasad Paladugu <siva.durga.paladugu@xilinx.com> Signed-off-by: Michal Simek <michal.simek@xilinx.com> Acked-by: Joe Hershberger <joe.hershberger@ni.com>
2018-12-26phy: Fix u-boot coruption when fixed-phy is usedMichal Simek
When fixed-link phy is used subnode offset is used as phy address. This number is bigger then space allocated for bus structure (allocated via mdio_alloc). bus->phymap[] array has PHY_MAX_ADDR size (32). That's why writing bus->phymap[addr] where addr is < 0 or > PHY_MAX_ADDR is causing write to memory which can caused full U-Boot crash. The patch is checking if address is in correct range. Signed-off-by: Michal Simek <michal.simek@xilinx.com>
2018-07-26net: phy: add ofnode node to struct phy_deviceGrygorii Strashko
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>
2018-07-26net: phy: Clean up includes of common.hJoe Hershberger
We want to be able to include some other system headers in phy.h but that requires us to have included common.h in the top-level first. Also, common.h includes config.h as the first thing it does, so don't include it directly. Series-to: u-boot Series-cc: Grygorii Strashko <grygorii.strashko@ti.com> Seried-cc: ti Series-process-log: sort, uniq Cover-letter: Prepare for net: phy: prevent uclass_eth device "node" field overwriting Prepare for [1] so that it doesn't break the build for a bunch of boards. There are a number of reasons this series broke the build but none of them depend on changes in the series, so fix up those situations ahead of applying that series. [1] https://patchwork.ozlabs.org/cover/940104/ END Signed-off-by: Joe Hershberger <joe.hershberger@ni.com>
2018-05-07SPDX: Convert all of our single license tags to Linux Kernel styleTom Rini
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>
2018-02-26phy: Fix style violationsMario Six
Fix some style violations in the generic PHY management code. Acked-by: Joe Hershberger <joe.hershberger@ni.com> Signed-off-by: Mario Six <mario.six@gdsys.cc>
2018-01-15net: phy: Add Broadcom BCM53xx switch driverFlorian Fainelli
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>
2017-11-17net: phy: Add Amlogic Meson GXL Internal PHY supportNeil Armstrong
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>
2017-08-07net: phy: micrel: Separate KSZ9000 drivers from KSZ8000 driversAlexandru Gagniuc
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>
2017-06-01dm: core: Replace of_offset with accessor (part 2)Simon Glass
At present devices use a simple integer offset to record the device tree node associated with the device. In preparation for supporting a live device tree, which uses a node pointer instead, refactor existing code to access this field through an inline function. Signed-off-by: Simon Glass <sjg@chromium.org>
2017-03-26drivers/net/phy: add fixed-phy / fixed-link supportHannes Schmelzer
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>
2017-02-08net: phy: MSCC Add Support for VSC8530-VSC8531-VSC8540-VSC8541John Haechten
Signed-off-by: John Haechten <john.haechten@microsemi.com> Acked-by: Joe Hershberger <joe.hershberger@ni.com>
2016-05-24Merge branch 'master' of git://git.denx.de/u-boot-netTom Rini
Signed-off-by: Tom Rini <trini@konsulko.com> Conflicts: drivers/net/zynq_gem.c
2016-05-24net: phy: Add PHY driver for mv88e61xx switchesKevin Smith
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>
2016-05-24phy: Wire return value from phy_config()Michal Simek
Fix zynq_gem driver to handle error from phy_config correctly. Signed-off-by: Michal Simek <michal.simek@xilinx.com>
2016-05-24net: phy: Handle phy_startup() error codes properlyMichal Simek
Propagate error code from genphy_update_link() to phy startup(). Signed-off-by: Michal Simek <michal.simek@xilinx.com> Acked-by: Stephen Warren <swarren@nvidia.com>
2016-05-24phy: Return correct error code when timeout happensMichal Simek
Return -ETIMEDOUT if timeout happens. Signed-off-by: Michal Simek <michal.simek@xilinx.com> Acked-by: Stephen Warren <swarren@nvidia.com>
2016-04-04phy: Add phy driver support for xilinx PCS/PMA coreSiva Durga Prasad Paladugu
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>
2016-01-28net: phy: introduce a quirk PHY_FLAG_BROKEN_RESETShaohui Xie
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>
2016-01-28net: phy: Use 'autoneg' flag from phydevAlexandre Messier
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 <amessier@tycoint.com> Acked-by: Joe Hershberger <joe.hershberger@ni.com>
2016-01-28net: phy: Set ANRESTART in setup_forcedAlexandre Messier
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 <amessier@tycoint.com> Acked-by: Joe Hershberger <joe.hershberger@ni.com>
2016-01-28drivers/net/phy: introduce phy_set_supported()Alexey Brodkin
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>
2016-01-28net: phy: genphy: Allow overwriting featuresSascha Hauer
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 <s.hauer@pengutronix.de> Signed-off-by: Alexey Brodkin <abrodkin@synopsys.com> Cc: Joe Hershberger <joe.hershberger@ni.com> Acked-by: Joe Hershberger <joe.hershberger@ni.com>
2016-01-28net: phy: ensure Gigabit features are masked off if requestedFlorian Fainelli
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 <f.fainelli@gmail.com> Signed-off-by: Alexey Brodkin <abrodkin@synopsys.com> Cc: Joe Hershberger <joe.hershberger@ni.com> Acked-by: Joe Hershberger <joe.hershberger@ni.com>
2016-01-28net: phy: do not read configuration register on resetStefan Agner
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 <stefan@agner.ch> Acked-by: Michael Welling <mwelling@ieee.org> Reviewed-by: Bin Meng <bmeng.cn@gmail.com> Acked-by: Joe Hershberger <joe.hershberger@ni.com>
2015-11-19Move console definitions into a new console.h fileSimon Glass
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 <sjg@chromium.org>
2015-11-19net: phy: Add support for Texas Instruments DP83867Edgar E. Iglesias
Code is taken from Linux kernel driver (v4.2). Signed-off-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com> Signed-off-by: Michal Simek <michal.simek@xilinx.com> Reviewed-by: Tom Rini <trini@konsulko.com> Acked-by: Joe Hershberger <joe.hershberger@ni.com>
2015-10-29net: phy: Test previous phydev->dev against new mac devBin Meng
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 <bmeng.cn@gmail.com> Acked-by: Joe Hershberger <joe.hershberger@ni.com>
2015-10-29net: phy: Change to print all phys that are not foundBin Meng
In get_phy_device_by_mask(), when no phy is found, currently we only print a message to show the first phy address that is not found. But this is not always the case as multiple phys can be specified by phy_mask. Change to print all phys that are not found, and to reduce the console boot log, change to use 'debug' instead of 'printf'. Signed-off-by: Bin Meng <bmeng.cn@gmail.com> Acked-by: Joe Hershberger <joe.hershberger@ni.com>
2015-10-29net: phy: Don't create phy device when there is no phyBin Meng
In get_phy_device_by_mask(), when no phy is found, we should not create any phy device. Signed-off-by: Bin Meng <bmeng.cn@gmail.com> Acked-by: Joe Hershberger <joe.hershberger@ni.com>
2015-09-29net: phy: on phy device create do not initialize link to 1Mugunthan V N
Currently when phy device is created the link variable is initialized to 1 which denoted phy link is already up. On a power reset there is no issue as phy status register link status will not be set, so phy auto negotiate will be started. But when a cpu reset is issued (ex: dra72x-evm) phy's link status bit is already set which leads to assume that link is already setup in genphy_update_link() initial check which results in ehternet not working. So do not assume that link is already up and on phy device create set link to zero. This is verified on dra72x-evm. Reported-by: Franklin S Cooper Jr <fcooper@ti.com> Signed-off-by: Mugunthan V N <mugunthanvnm@ti.com> Acked-by: Joe Hershberger <joe.hershberger@ni.com>
2015-08-11net: phy: delay only if reset handler is registeredJörg Krause
With commit e3a77218a256edbe201112a39beeed8adcabae3f the MII bus is only reset if a reset handler is registered. If there is no reset handler there is no need to wait for a device to come out of the reset. Signed-off-by: Jörg Krause <joerg.krause@embedded.rocks>
2015-08-11net: phy: fix data type of phy_idJörg Krause
phy_id is declared as u32 in create_phy_by_mask and in struct phy_device. Signed-off-by: Jörg Krause <joerg.krause@embedded.rocks>
2015-05-19net: phy: Add support for all targets which requires MANUAL_RELOCMichal Simek
Targets with CONFIG_NEEDS_MANUAL_RELOC do not use REL/RELA relocation (mostly only GOT) where functions aray are not updated. This patch is fixing function pointers passed to phy_register function. This patch was tested on Microblaze architecture. Signed-off-by: Michal Simek <michal.simek@xilinx.com> Acked-by: Joe Hershberger <joe.hershberger@ni.com>
2015-04-20net/phy: fixup for get_phy_idShengzhou Liu
commit 3c6928fd7b0f84 "net: phy: fix warnings with W=1" caused some PHYs(e.g. CS4315/CS4340) not working. This patch fixes the warning and make those special PHYs working as well. Signed-off-by: Shengzhou Liu <Shengzhou.Liu@freescale.com>
2015-04-18dm: net: Adjust PHY interface to work with CONFIG_DM_ETHSimon Glass
When driver model is used for Ethernet a few functions are passed a udevice instead of an eth_device. Also add a function to find a PHY type given its name. This will be used to decode the device tree node. Finally, put a phy_interface field in struct eth_pdata since this is an important part of the platform data for Ethernet. Signed-off-by: Simon Glass <sjg@chromium.org> Acked-by: Joe Hershberger <joe.hershberger@ni.com>
2015-01-16phylib: add support for aquantia PHYsShaohui Xie
This patch supports AQ1202, AQ2104, AQR105 PHY. Signed-off-by: Shaohui Xie <Shaohui.Xie@freescale.com> Acked-by: Joe Hershberger <joe.hershberger@ni.com> Reviewed-by: York Sun <yorksun@freescale.com>
2014-12-05net/phy: Add support for CS4315/CS4340 PHYShengzhou Liu
Add support for Cortina CS4315/CS4340 10G PHY. - This driver loads CS43xx firmware from NOR/NAND/SPI/SD device to initialize Cortina PHY. - Cortina PHY has non-standard offset of PHY ID registers, thus we define own get_phy_id() to override default get_phy_id(). - To define macro CONFIG_PHY_CORTINA will enable this driver. Signed-off-by: Shengzhou Liu <Shengzhou.Liu@freescale.com> Reviewed-by: York Sun <yorksun@freescale.com>
2014-10-27Merge branch 'master' of git://git.denx.de/u-boot-tiTom Rini
2014-10-25net: phy: fix warnings with W=1Jeroen Hofstee
get_phy_id is marked weak but has no protype nor a strong version, just make it static. Use __weak for board_phy_config. Signed-off-by: Jeroen Hofstee <jeroen@myspectrum.nl>
2014-10-23net: phy: print a number of phy that is not foundKhoronzhuk, Ivan
In case when several Ethernet ports are supported it's convenient to see the number of phy that is not found. Acked-by: Vitaly Andrianov <vitalya@ti.com> Signed-off-by: Ivan Khoronzhuk <ivan.khoronzhuk@ti.com>
2014-08-21drivers: net: remove dead driversMasahiro Yamada
The following configs are not defined at all: - CONFIG_INCA_IP_SWITCH - CONFIG_PBL2800_ETHER - CONFIG_PHY_ICPLUS Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
2014-06-05phy: fix create_phy_by_mask for when its given an actual search maskCormier, Jonathan
get_phy_id returns -EIO when it can't read from a phy at a given addr. This would cause create_phy_by_mask to return prematurely before it had tested the other addresses in the provided mask. Example usage: Replace phydev = phy_connect(bus, phy_addr, dev, phy_if) with phydev = phy_find_by_mask(bus, phy_mask, phy_if) if (phydev) phy_connect_dev(phydev, dev); Signed-off-by: Cormier, Jonathan <jcormier@criticallink.com> Cc: Joe Hershberger <joe.hershberger@gmail.com>
2014-05-12net/phy: enable get_phy_id redefinableShengzhou Liu
As some PHYs have non-standard PHY ID registers, PHY Id can't be read correctly by current get_phy_id function, so we enable get_phy_id redefinable to permit specific PHY driver having own specific get_phy_id function. Signed-off-by: Shengzhou Liu <Shengzhou.Liu@freescale.com>
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