summaryrefslogtreecommitdiff
path: root/include/linux/of_mdio.h
AgeCommit message (Collapse)AuthorFilesLines
2014-07-02net: fix circular dependency in of_mdio codeDaniel Mack1-8/+0
Commit 86f6cf4127 (net: of_mdio: add of_mdiobus_link_phydev()) introduced a circular dependency between libphy and of_mdio. depmod: ERROR: <modroot>/kernel/drivers/net/phy/libphy.ko in dependency cycle! depmod: ERROR: <modroot>/kernel/drivers/of/of_mdio.ko in dependency cycle! The problem is that of_mdio.c references &mdio_bus_type and libphy now references of_mdiobus_link_phydev. Fix this by not exporting of_mdiobus_link_phydev() from of_mdio.ko. Make it a static function in mdio_bus.c instead. Signed-off-by: Daniel Mack <zonque@gmail.com> Reported-by: Jeff Mahoney <jeffm@suse.com> Fixes: 86f6cf4127 (net: of_mdio: add of_mdiobus_link_phydev()) Reviewed-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-05-30net: of_mdio: add of_mdiobus_link_phydev()Daniel Mack1-0/+8
Add a function to walk the list of subnodes of a mdio bus and look for a node that matches the phy's address with its 'reg' property. If found, set the of_node pointer for the phy. This allows auto-probed pyh devices to be augmented by information passed in via DT. Signed-off-by: Daniel Mack <zonque@gmail.com> Reviewed-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-05-22of: mdio: remove of_phy_connect_fixed_linkFlorian Fainelli1-10/+0
All in-tree drivers have been converted to use the new pair of functions: of_is_fixed_phy_link() plus of_phy_register_fixed_link(), we can now safely remove of_phy_connect_fixed_link. Signed-off-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-05-17of: provide a binding for fixed link PHYsThomas Petazzoni1-0/+15
Some Ethernet MACs have a "fixed link", and are not connected to a normal MDIO-managed PHY device. For those situations, a Device Tree binding allows to describe a "fixed link" using a special PHY node. This patch adds: * A documentation for the fixed PHY Device Tree binding. * An of_phy_is_fixed_link() function that an Ethernet driver can call on its PHY phandle to find out whether it's a fixed link PHY or not. It should typically be used to know if of_phy_register_fixed_link() should be called. * An of_phy_register_fixed_link() function that instantiates the fixed PHY into the PHY subsystem, so that when the driver calls of_phy_connect(), the PHY device associated to the OF node will be found. These two additional functions also support the old fixed-link Device Tree binding used on PowerPC platforms, so that ultimately, the network device drivers for those platforms could be converted to use of_phy_is_fixed_link() and of_phy_register_fixed_link() instead of of_phy_connect_fixed_link(), while keeping compatibility with their respective Device Tree bindings. Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com> Reviewed-by: Florian Fainelli <f.fainelli@gmail.com> Tested-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-05-08net: mdio: of_mdiobus_register(): fall back to mdiobus_register() for !CONFIG_OFDaniel Mack1-1/+6
If CONFIG_OF is not set, make of_mdiobus_register() call mdiobus_register() instead of returning -ENOSYS. This way, we can just call of_mdiobus_register() from all DT-enabled drivers to handle the compat cases. Signed-off-by: Daniel Mack <zonque@gmail.com> Suggested-by: Florian Fainelli <f.fainelli@gmail.com> Acked-by: Florian Fainelli <f.fainelli@gmail.com> Acked-by: Mugunthan V N <mugunthanvnm@ti.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-01-14phylib: Add of_phy_attachAndy Fleming1-0/+10
10G PHYs don't currently support running the state machine, which is implicitly setup via of_phy_connect(). Therefore, it is necessary to implement an OF version of phy_attach(), which does everything except start the state machine. Signed-off-by: Andy Fleming <afleming@gmail.com> Signed-off-by: Shaohui Xie <Shaohui.Xie@freescale.com> Acked-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-10-11of/mdio: Staticise !CONFIG_OF stubsMark Brown1-10/+10
The !CONFIG_OF stubs aren't static so if multiple files include the header with this configuration then the linker will see multiple definitions of the stubs. Reported-by: Fengguang Wu <fengguang.wu@intel.com> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Acked-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com> Acked-by: Srinivas Kandagatla <srinivas.kandagatla@st.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-08-30of/mdio: Add dummy functions in of_mdio.h.Srinivas Kandagatla1-0/+33
This patch adds dummy functions in of_mdio.h, so that driver need not ifdef there code with CONFIG_OF. Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@st.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-05-08netdev/of/phy: New function: of_mdio_find_bus().David Daney1-0/+2
Add of_mdio_find_bus() which allows an mii_bus to be located given its associated the device tree node. This is needed by the follow-on patch to add a driver for MDIO bus multiplexers. The of_mdiobus_register() function is modified so that the device tree node is recorded in the mii_bus. Then we can find it again by iterating over all mdio_bus_class devices. Because the OF device tree has now become an integral part of the kernel, this can live in mdio_bus.c (which contains the needed mdio_bus_class structure) instead of of_mdio.c. Signed-off-by: David Daney <david.daney@cavium.com> Cc: Grant Likely <grant.likely@secretlab.ca> Cc: "David S. Miller" <davem@davemloft.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-07-22of/mdio: Add support function for Ethernet fixed-link propertyAnton Vorontsov1-0/+3
Fixed-link support is broken for the ucc_eth, gianfar, and fs_enet device drivers. The "OF MDIO rework" patches removed most of the support. Instead of re-adding fixed-link stuff to the drivers, this patch adds a support function for parsing the fixed-link property and obtaining a dummy phy to match. Note: the dummy phy handling in arch/powerpc is a bit of a hack and needs to be reworked. This function is being added now to solve the regression in the Ethernet drivers, but it should be considered a temporary measure until the fixed link handling can be reworked. Signed-off-by: Anton Vorontsov <avorontsov@ru.mvista.com> Signed-off-by: Grant Likely <grant.likely@secretlab.ca> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-04-27openfirmware: Add OF phylib support codeGrant Likely1-0/+22
Add support for parsing the device tree for PHY devices on an MDIO bus. Currently many of the PowerPC ethernet drivers are open coding a solution for reading data out of the device tree to find the correct PHY device. This patch implements a set of common routines to: a) let MDIO bus drivers register phy_devices described in the tree, and b) let MAC drivers find the correct phy_device via the tree. Signed-off-by: Grant Likely <grant.likely@secretlab.ca> Acked-by: Andy Fleming <afleming@freescale.com> Signed-off-by: David S. Miller <davem@davemloft.net>