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path: root/drivers/net/phy
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2009-07-23net: Rework mdio-ofgpio driver to use of_mdio infrastructureMark Ware
Changes to the fs_enet driver aa73832c5a80d6c52c69b18af858d88fa595dd3c ("net: Rework fs_enet driver to use of_mdio infrastructure") cause kernel crashes when using the mdio-ofgpio driver. This patch replicates similar changes made to the fs_enet mii-bitbang drivers. It has been tested on a custom mpc8280 based board using an NFS mounted root. Signed-off-by: Mark Ware <mware@elphinstone.net> Acked-by: Grant Likely <grant.likely@secretlab.ca> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-07-14NET: phy_device, fix lock imbalanceJiri Slaby
Don't forget to unlock a mutex in phy_scan_fixups on a fail path. Signed-off-by: Jiri Slaby <jirislaby@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-07-02phylib: fixes for PHY_RESUMING state changesWade Farnsworth
The PHY_HALTED state disables phydev->link, but the link will not be updated upon entering PHY_RESUMING. Add a call to phy_read_status() to update the link before entering PHY_RUNNING. If the link is not up at this point, enter the PHY_NOLINK state instead. Also, when transitioning from PHY_RESUMING to PHY_RUNNING, calls to netif_carrier_on() and phydev->adjust_link() are missing. Add the calls similar to the other transitions to PHY_RUNNING. Signed-off-by: Wade Farnsworth <wfarnsworth@mvista.com> Acked-by: Andy Fleming <afleming@freescale.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-06-17phy_device: fix parameter name in kernel-docRandy Dunlap
Fix kernel-doc parameter name in phy_device.c. Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-06-03net/phy/marvell: update m88e1111 support for SGMII modeHaiying Wang
Disable fiber/copper auto selection for Marvell m88e1111 SGMII support. Signed-off-by: Haiying Wang <Haiying.Wang@freescale.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-04-27phylib: add *_direct() variants of phy_connect and phy_attach functionsGrant Likely
Add phy_connect_direct() and phy_attach_direct() functions so that drivers can use a pointer to the phy_device instead of trying to determine the phy's bus_id string. This patch is useful for OF device tree descriptions of phy devices where the driver doesn't need or know what the bus_id value in order to get a phy_device pointer. 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>
2009-04-27phylib: rework to prepare for OF registration of PHYsGrant Likely
This patch makes changes in preparation for supporting open firmware device tree descriptions of MDIO busses. Changes include: - Cleanup handling of phy_map[] entries; they are already NULLed when registering and so don't need to be re-cleared, and it is good practice to clear them out when unregistering. - Split phy_device registration out into a new function so that the OF helpers can do two stage registration (separate allocation and registration steps). 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>
2009-04-16phylib: Fix delay argument of schedule_delayed_workAtsushi Nemoto
The commit a390d1f3 ("phylib: convert state_queue work to delayed_work") missed converting 'expires' value to 'delay' value. Signed-off-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp> Acked-by: Marcin Slusarz <marcin.slusarz@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-04-13phylib: Add interrupt source check function to M88E1121R driverAnatolij Gustschin
Add did_interrupt() function to check if a PHY port really caused an interrupt. This is needed in the case of shared PHY interrupt pin configuration to stop interrupt event processing for PHY ports which didn't cause an interrupt. Signed-off-by: Anatolij Gustschin <agust@denx.de> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-04-13phylib: Allow early-out in phy_changeAnatolij Gustschin
Marvell 88E1121R Dual PHY device can be hardware-configured to use shared interrupt pin for both PHY ports. For such PHY configurations using shared PHY interrupt phy_interrupt() handler will also schedule a work for PHY port which didn't cause an interrupt. This patch adds a possibility for PHY drivers to provide did_interrupt() function which reports if the PHY (or a PHY port in a multi-PHY device) generated an interrupt. This function is called in phy_change() as phy_change() shouldn't proceed if it is invoked for a PHY which didn't cause an interrupt. So check for interrupt originator in phy_change() to allow early-out. Signed-off-by: Anatolij Gustschin <agust@denx.de> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-04-13phylib: Basic support for the M88E1121R Marvell chipSergei Poselenov
Add support for the Marvell M88E1121R Dual GigE PHY Signed-off-by: Yuri Tikhonov <yur@emcraft.com> Signed-off-by: Sergei Poselenov <sposelenov@emcraft.com> Signed-off-by: Anatolij Gustschin <agust@denx.de> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-04-11phy: error handling for platform_device_register_simple()Dan Carpenter
platform_device_register_simple() returns ERR_PTR() and not NULL. Found by smatch (http://repo.or.cz/w/smatch.git). Compile tested. Signed-off-by: Dan Carpenter <error27@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-04-02workqueue: add to_delayed_work() helper functionJean Delvare
It is a fairly common operation to have a pointer to a work and to need a pointer to the delayed work it is contained in. In particular, all delayed works which want to rearm themselves will have to do that. So it would seem fair to offer a helper function for this operation. [akpm@linux-foundation.org: coding-style fixes] Signed-off-by: Jean Delvare <khali@linux-fr.org> Acked-by: Ingo Molnar <mingo@elte.hu> Cc: "David S. Miller" <davem@davemloft.net> Cc: Herbert Xu <herbert@gondor.apana.org.au> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: Martin Schwidefsky <schwidefsky@de.ibm.com> Cc: Greg KH <greg@kroah.com> Cc: Pekka Enberg <penberg@cs.helsinki.fi> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-03-26Merge branch 'master' of ↵David S. Miller
master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6
2009-03-23phy: add new LAN8710 and LAN8720 device ids to smsc phy driverSteve Glendinning
LAN8710 and LAN8720 are two new 10/100 ethernet PHY models. The two share the same phy id, this patch adds it to the smsc phy driver. Signed-off-by: Steve Glendinning <steve.glendinning@smsc.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-03-13phylib: convert state_queue work to delayed_workMarcin Slusarz
It closes a race in phy_stop_machine when reprogramming of phy_timer (from phy_state_machine) happens between del_timer_sync and cancel_work_sync. Without this change it could lead to crash if phy_device would be freed after phy_stop_machine (timer would fire and schedule freed work). Signed-off-by: Marcin Slusarz <marcin.slusarz@gmail.com> Acked-by: Jean Delvare <khali@linux-fr.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-02-26mdio: fix non-constant printk warningsStephen Hemminger
Signed-off-by: Stephen Hemminger <shemminger@vyatta.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-02-14Merge branch 'master' of /home/davem/src/GIT/linux-2.6/David S. Miller
Conflicts: drivers/net/wireless/iwlwifi/iwl-agn.c drivers/net/wireless/iwlwifi/iwl3945-base.c
2009-02-10mdio-gpio: Add mdc pin direction initializationPaulius Zaleckas
mdc pin should always be output. Initialize it as output, so each board code does not need to do this. Signed-off-by: Paulius Zaleckas <paulius.zaleckas@teltonika.lt> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-02-01phylib: Rework suspend/resume code to check netdev wakeup capabilityAnton Vorontsov
In most cases (e.g. PCI drivers) MDIO and MAC controllers are represented by the same device. But for SOC ethernets we have separate devices. So, in SOC case, checking whether MDIO controller may wakeup is not only makes little sense, but also prevents us from doing per-netdevice wakeup management. This patch reworks suspend/resume code so that now it checks for net device's wakeup flags, not MDIO controller's ones. Each netdevice should manage its wakeup flags, and phylib will decide whether suspend an attached PHY or not. Signed-off-by: Anton Vorontsov <avorontsov@ru.mvista.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-01-26Merge branch 'master' of ↵David S. Miller
master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6
2009-01-22phy: Add suspend/resume support to SMSC PHYsSteve Glendinning
All supported SMSC PHYs implement the standard "power down" bit 11 of BMCR, so this patch adds support using the generic genphy_{suspend,resume} functions. Signed-off-by: Steve Glendinning <steve.glendinning@smsc.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-01-22phylib: Fix oops in suspend/resume pathsAnton Vorontsov
Suspend/resume routines check for phydrv != NULL, but that is wrong because "phydrv" comes from container_of(drv). If drv is NULL, then container_of(drv) will return non-NULL result, and the checks won't work. The Freescale TBI PHYs are driver-less, so "drv" is NULL, and that leads to the following oops: Unable to handle kernel paging request for data at address 0xffffffe4 Faulting instruction address: 0xc0215554 Oops: Kernel access of bad area, sig: 11 [#1] [...] NIP [c0215554] mdio_bus_suspend+0x34/0x70 LR [c01cc508] suspend_device+0x258/0x2bc Call Trace: [cfad3da0] [cfad3db8] 0xcfad3db8 (unreliable) [cfad3db0] [c01cc508] suspend_device+0x258/0x2bc [cfad3dd0] [c01cc62c] dpm_suspend+0xc0/0x140 [cfad3e20] [c01cc6f4] device_suspend+0x48/0x5c [cfad3e40] [c0068dd8] suspend_devices_and_enter+0x8c/0x148 [cfad3e60] [c00690f8] enter_state+0x100/0x118 [cfad3e80] [c00691c0] state_store+0xb0/0xe4 [cfad3ea0] [c018c938] kobj_attr_store+0x24/0x3c [cfad3eb0] [c00ea9a8] flush_write_buffer+0x58/0x7c [cfad3ed0] [c00eadf0] sysfs_write_file+0x58/0xa0 [cfad3ef0] [c009e810] vfs_write+0xb4/0x16c [cfad3f10] [c009ed40] sys_write+0x4c/0x90 [cfad3f40] [c0014954] ret_from_syscall+0x0/0x38 [...] This patch fixes the issue, plus removes unneeded parentheses and fixes indentation level in mdio_bus_suspend(). Signed-off-by: Anton Vorontsov <avorontsov@ru.mvista.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-01-21phylib: unsigneds go unnoticedRoel Kluin
both pdata->mdc and pdata->mdio are unsigned. Notice a negative return value. Signed-off-by: Roel Kluin <roel.kluin@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-01-14phylib: Fix Freescale TBI PHY detectionAnton Vorontsov
Freescale on-chip TBI PHYs reports PHY ID as 0x0, but as of commit 3ee82383f0098a2e13acc8cf1be8e47512f41e5a Author: Giulio Benetti <giulio.benetti@micronovasrl.com> Date: Thu Nov 13 21:53:13 2008 +0000 phy: fix phy address bug PHYID returns 0xffff and not 0xffffffff when not found and in some case(at91sam9263) 0x0. Maybe this patch could be useful. phy_device.c treats PHY ID == 0x0 as bogus IDs, and that results in gianfar driver failure to see the TBI PHYs. This code snippet triggers: if (!priv->tbiphy) { printk(KERN_WARNING "SGMII mode requires that the device " "tree specify a tbi-handle\n"); return; } Although tbi-handle is specified in the device tree. Btw, technically PHY ID == 0x0 is a valid ID (if we ever see a PHY manufactured by Xerox :-). Signed-off-by: Anton Vorontsov <avorontsov@ru.mvista.com> Acked-by: Andy Fleming <afleming@freescale.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-12-25net: PHYLIB mdio fixes #2Krzysztof Halasa
The PHYLIB mdio code has more problems in error paths: - mdiobus_release can be called before bus->state is set to MDIOBUS_REGISTERED - mdiobus_scan allocates resources which need to be freed - the comment is wrong, the resistors used are actually pull-ups. Signed-off-by: Krzysztof Halasa <khc@pm.waw.pl> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-12-23Merge branch 'master' of ↵David S. Miller
master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6 Conflicts: drivers/net/ppp_generic.c
2008-12-17net: kernel BUG at drivers/net/phy/mdio_bus.c:165!Krzysztof Halasa
kernel BUG at drivers/net/phy/mdio_bus.c:165! Unable to handle kernel NULL pointer dereference at virtual address 00000000 How? mdiobus_alloc() sets bus->state = MDIOBUS_ALLOCATED. mdiobus_register() sets bus->state = MDIOBUS_REGISTERED but then can fail (mdiobus_scan()) returning an error to the caller. The caller aborts correctly with mdiobus_free() which does: if (bus->state == MDIOBUS_ALLOCATED) { kfree(bus); return; } BUG_ON(bus->state != MDIOBUS_UNREGISTERED); Signed-off-by: Krzysztof Halasa <khc@pm.waw.pl> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-12-16phylib: Remove unnecessary "reset" fixups in genphy_setup_forcedAndy Fleming
genphy_setup_forced hasn't actually reset the PHY for a long time, but a comment to that effect remained in the code, so code continued to act as if it *had* reset the PHY, and called the necessary fixup functions to respond to a PHY reset. With no reset, those functions are no longer needed, so we remove them. Signed-off-by: Andy Fleming <afleming@freescale.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-12-09phy: Add LSI ET1011C PHY driverChaithrika U S
Adds LSI ET1011C PHY driver. This driver is used by TI DM646x EVM. Signed-off-by: Chaithrika U S <chaithrika@ti.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-11-28phy: add the ST ste10Xp PHYsGiuseppe Cavallaro
This patch adds the STMicroelectronics ste10xp PHY device driver. It supports both the ste100p and the ste101p devices. Suspend/resume alredy added. Signed-off-by: Giuseppe Cavallaro <peppe.cavallaro@st.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-11-28phy: Add file missed in previous commit.David S. Miller
Signed-off-by: David S. Miller <davem@davemloft.net>
2008-11-28phy: power management supportGiuseppe Cavallaro
This patch adds the power management support into the physical abstraction layer. Suspend and resume functions respectively turns on/off the bit 11 into the PHY Basic mode control register. Generic PHY device starts supporting PM. In order to support the wake-on LAN and avoid to put in power down the PHY device, the MDIO is aware of what the Ethernet device wants to do. Voluntary, no CONFIG_PM defines were added into the sources. Also generic suspend/resume functions are exported to allow other drivers use them (such as genphy_config_aneg etc.). Within the phy_driver_register function, we need to remove the memset. It overrides the device driver owner and it is not good. Signed-off-by: Giuseppe Cavallaro <peppe.cavallaro@st.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-11-28phy: add natsemi PHY driverGiuseppe Cavallaro
This patch adds the PHY device driver for the National Semiconductor DP83865 Gig PHYTER. Signed-off-by: Giuseppe Cavallaro <peppe.cavallaro@st.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-11-26Merge branch 'master' of ↵David S. Miller
master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6 Conflicts: drivers/net/hp-plus.c drivers/net/wireless/ath5k/base.c drivers/net/wireless/ath9k/recv.c net/wireless/reg.c
2008-11-25phylib: Add Vitesse VSC8221 SGMII PHYTrent Piepho
PHY is mostly compatible with the existing VSC8244 PHY. The init sequence is different and the interrupt mask lacks some bits present in the VSC8244. Rather than making a copy of the existing VSC234x config_intr function and change one constant, I modify it to select the interrupt mask based on which driver is calling it. This lets it be used by both drivers. Signed-off-by: Trent Piepho <tpiepho@freescale.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-11-21broadcom: Add 57780 supportMatt Carlson
This patch adds the 57780 PHY ID to the broadcom module. Signed-off-by: Matt Carlson <mcarlson@broadcom.com> Signed-off-by: Michael Chan <mchan@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-11-20phy: fix phy_id detection also for broken hardware.Giuseppe Cavallaro
This patch fixes the case when the phy_ids is mostly Fs and in some case 0x0 due to broken hardware. Signed-off-by: Giuseppe Cavallaro <peppe.cavallaro@st.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-11-20Merge branch 'master' of ↵David S. Miller
master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6 Conflicts: drivers/net/ixgbe/ixgbe_main.c include/net/mac80211.h net/phonet/af_phonet.c
2008-11-19phylib: Fix auto-negotiation restart avoidanceTrent Piepho
A previous patch, 51e2a3846eab18711f4eb59cd0a4c33054e2980a, made genphy_config_aneg() not restart aneg by calling genphy_restart_aneg() if the advertisement hadn't changed. But, genphy_restart_aneg() doesn't just restart aneg, it may also *enable* aneg or un-isolate the PHY from the MII (those functions are controlled by the same register). The code to avoid calling genphy_restart_aneg() didn't consider this. So, modify genphy_config_aneg() to also check if the PHY needs to have aneg enabled or be un-isolated before deciding not to restart aneg. This caused a problem with certain Davicom PHYs, as that driver isolates the PHY (why?) before calling genphy_config_aneg() and expects the PHY to be un-isolated by that function. Signed-off-by: Trent Piepho <tpiepho@freescale.com> Reported-by: Scott Wood <scottwood@freescale.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-11-18Merge branch 'master' of ↵David S. Miller
master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6 Conflicts: drivers/isdn/i4l/isdn_net.c fs/cifs/connect.c
2008-11-16phylib: make mdio-gpio work without OF (v4)Paulius Zaleckas
make mdio-gpio work with non OpenFirmware gpio implementation. Aditional changes to mdio-gpio: - use gpio_request() and gpio_free() - place irq[] array in struct mdio_gpio_info - add module description, author and license - add note about compiling this driver as module - rename mdc and mdio function (were ugly names) - change MII to MDIO in bus name - add __init __exit to module (un)loading functions - probe fails if no phys added to the bus - kzalloc bitbang with sizeof(*bitbang) Changes since v3: - keep bus naming "%x" to be compatible with existing drivers. Changes since v2: - more #ifdefs reduction - platform driver will be registered on OF platforms also - unified platform and OF bus_id to phy%i Changes since v1: - removed NO_IRQ - reduced #idefs Laurent, please test this driver under OF. Signed-off-by: Paulius Zaleckas <paulius.zaleckas@teltonika.lt> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-11-16phylib: rename mdio-ofgpio to mdio-gpioPaulius Zaleckas
Signed-off-by: Paulius Zaleckas <paulius.zaleckas@teltonika.lt> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-11-16phy: fix phy address bugGiulio Benetti
PHYID returns 0xffff and not 0xffffffff when not found and in some case(at91sam9263) 0x0. Maybe this patch could be useful. Signed-off-by: Giulio Benetti <giulio.benetti@micronovasrl.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-11-15phy: Add support for Marvell 88E1118 PHYRon Madrid
This patch will add support for the Marvell 88E1118 PHY which supports gigabit ethernet among other things. Signed-off-by: Ron Madrid <ron_madrid@sbcglobal.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-11-14phylib: fix premature freeing of struct mii_busLennert Buytenhek
Commit 46abc02175b3c246dd5141d878f565a8725060c9 ("phylib: give mdio buses a device tree presence") added a call to device_unregister() in a situation where the caller did not intend for the device to be freed yet, but apart from just unregistering the device from the system, device_unregister() does an additional put_device() that is intended to free it. The right function to use in this situation is device_del(), which unregisters the device from the system like device_unregister() does, but without dropping the reference count an additional time. Bug report from Bryan Wu <cooloney@kernel.org>. Signed-off-by: Lennert Buytenhek <buytenh@marvell.com> Tested-by: Bryan Wu <cooloney@kernel.org> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
2008-11-10net: struct device - replace bus_id with dev_name(), dev_set_name()Kay Sievers
Acked-by: Marcel Holtmann <marcel@holtmann.org> Acked-by: Greg Kroah-Hartman <gregkh@suse.de> Signed-off-by: Kay Sievers <kay.sievers@vrfy.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-11-06SMSC LAN911x and LAN921x vendor driverSteve Glendinning
Attached is a driver for SMSC's LAN911x and LAN921x families of embedded ethernet controllers. There is an existing smc911x driver in the tree; this is intended to replace it. Dustin McIntire (the author of the smc911x driver) has expressed his support for switching to this driver. This driver contains workarounds for all known hardware issues, and has been tested on all flavours of the chip on multiple architectures. This driver now uses phylib, so this patch also adds support for the device's internal phy Signed-off-by: Steve Glendinning <steve.glendinning@smsc.com> Signed-off-by: Bahadir Balban <Bahadir.Balban@arm.com> Signed-off-by: Dustin Mcintire <dustin@sensoria.com> Signed-off-by: Bill Gatliff <bgat@billgatliff.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
2008-11-03broadcom: Add support for BCM50610Matt Carlson
This patch adds the BCM50610 to the list of phys supported by the broadcom driver. Signed-off-by: Matt Carlson <mcarlson@broadcom.com> Signed-off-by: Michael Chan <mchan@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-11-03broadcom: Refine expansion register access routineMatt Carlson
This patch makes the expansion register access routines a little more formal. They will be used by the following bcm50610 support patch. Signed-off-by: Matt Carlson <mcarlson@broadcom.com> Signed-off-by: Michael Chan <mchan@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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