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path: root/drivers/usb/host/ehci-fsl.c
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2009-07-12USB: EHCI: use the new clear_tt_buffer interfaceAlan Stern
This patch (as1256) changes ehci-hcd and all the other drivers in the EHCI family to make use of the new clear_tt_buffer callbacks. When a Clear-TT-Buffer request is in progress for a QH, the QH is not allowed to be linked into the async schedule until the request is finished. At that time, if there are any URBs queued for the QH, it is linked into the async schedule. Signed-off-by: Alan Stern <stern@rowland.harvard.edu> Cc: stable <stable@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-06-15USB: EHCI: update toggle state for linked QHsAlan Stern
This patch (as1245) fixes a bug in ehci-hcd. When an URB is queued for an endpoint whose QH is already in the LINKED state, the QH doesn't get refreshed. As a result, if usb_clear_halt() was called during the time that the QH was linked but idle, the data toggle value in the QH doesn't get reset. The symptom is that after a clear_halt, data gets lost and transfers time out. This problem is starting to show up now because the "ehci-hcd unlink speedups" patch causes QHs with no queued URBs to remain linked for a suitable time. The patch utilizes the new endpoint_reset mechanism to fix the problem. When an endpoint is reset, the new method forcibly unlinks the QH (if necessary) and safely updates the toggle value. This allows qh_update() to be simplified and avoids using usb_device's toggle bits in a rather unintuitive way. Signed-off-by: Alan Stern <stern@rowland.harvard.edu> CC: David Brownell <david-b@pacbell.net> Tested-by: David <david@unsolicited.net> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-07-21USB: EHCI: Reconciling USB register differences on MPC85xx vs MPC83xxSrikanth Srinivasan
A couple of USB register initializations had to be changed on MPC85xx platforms. This is due to the internal SoC buses being different on MPC83xx SoCs vs MPC85xx SoCs. We currently handle this via an ifdef since 83xx and 85xx are mutually exclusive kernel builds. Signed-off-by: Srikanth Srinivasan <srikanth.srinivasan@freescale.com> Signed-off-by: Kumar Gala <galak@kernel.crashing.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-07-21USB: usb dev_name() instead of dev->bus_idKay Sievers
The bus_id field is going away, use the dev_name() function instead. Signed-off-by: Kay Sievers <kay.sievers@vrfy.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-05-29USB: EHCI: suppress unwanted error messagesAlan Stern
This patch (as1096) fixes an annoying problem: When a full-speed or low-speed device is plugged into an EHCI controller, it fails to enumerate at high speed and then is handed over to the companion controller. But usbcore logs a misleading and unwanted error message when the high-speed enumeration fails. The patch adds a new HCD method, port_handed_over, which asks whether a port has been handed over to a companion controller. If it has, the error message is suppressed. Signed-off-by: Alan Stern <stern@rowland.harvard.edu> CC: David Brownell <david-b@pacbell.net> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-05-29USB: EHCI: fix up root-hub TT messAlan Stern
This patch (as1095) cleans up the HCD glue and several of the EHCI bus-glue files. The ehci->is_tdi_rh_tt flag is redundant, since it means the same thing as the hcd->has_tt flag, so it is removed and the other flag used in its place. Some of the bus-glue files didn't get the relinquish_port method added to their hc_driver structures. Although that routine currently doesn't do anything for controllers with an integrated TT, in the future it might. So the patch adds it where it is missing. Lastly, some of the bus-glue files have erroneous entries for their hc_driver's suspend and resume methods. These method pointers are specific to PCI and shouldn't be used otherwise. (The patch also includes an invisible whitespace fix.) Signed-off-by: Alan Stern <stern@rowland.harvard.edu> Acked-by: David Brownell <dbrownell@users.sourceforge.net>
2008-04-24USB: ehci minor SOC bus glue fixesDavid Brownell
Various minor fixes to some SOC bus glue for EHCI: - Remove a bogus copyright (by "me"!) which someone added to the FSL driver, and an irrelevant comment. - Un-break MODULE_ALIAS() directives after platform_bus hotplugging acquired a backwards-incompatible change. (Which didn't fix ANY of the in-tree drivers it prevented from hotplugging -- sigh.) - Remove some bogus assignments of platform_bus_type; that's done by the platform_bus code. - Add some FIXMEs for drivers with that pointless two-level idiom for probe() and remove() routines. ("Obfuscation" is a non-goal.) That should help avoid future bus glue which copies that idiom. Signed-off-by: David Brownell <dbrownell@users.sourceforge.net> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-02-01USB: Spelling fixesJoe Perches
Signed-off-by: Joe Perches <joe@perches.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-02-01USB: force handover port to companion when hub_port_connect_change failsBalaji Rao
This patch hands over the port to the companion when the hub_port_connect_change fails. Signed-off-by: Balaji Rao <balajirrao@gmail.com> Signed-off-by: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-12-17USB: use IRQF_DISABLED for HCD interrupt handlersAlan Stern
Host controller IRQs are supposed to be serviced with interrupts disabled. This patch (as1026) adds an IRQF_DISABLED flag to all the controller drivers that lack it. It also replaces the spin_lock_irqsave() and spin_unlock_irqrestore() calls in uhci_irq() with simple spin_lock() and spin_unlock(). This fixes Bugzilla #9335. Signed-off-by: Alan Stern <stern@rowland.harvard.edu> Acked-by: David Brownell <david-b@pacbell.net> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-07-12USB: ehci_fsl update for MPC831x supportLi Yang
For MPC831x support, change the ehci-fsl driver to preserve bits set in platform code. Add a common CONFIG_USB_EHCI_FSL to indicate presence of Freescale EHCI SOC. Add FSL_USB2_DR_OTG operating mode support, thus both host and device can work for the mini-ab receptacle. Note: this doesn't enable OTG protocol support. Signed-off-by: Li Yang <leoli@freescale.com> Cc: David Brownell <david-b@pacbell.net> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-05-23ehci-fsl: fix cache coherency problem on system with large memoryLi Yang
The patch fixes bug http://bugzilla.kernel.org/show_bug.cgi?id=7482. It sets USB snooping on 4G space for PowerPC platforms without CONFIG_NOT_COHERENT_CACHE defined. Reported-by: Stefan Meyer <reyems@telkomsa.net> Signed-off-by: Li Yang <leoli@freescale.com> Cc: Greg KH <greg@kroah.com> Cc: David Brownell <david-b@pacbell.net> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-02-07USB: Implement support for EHCI with big endian MMIOBenjamin Herrenschmidt
This patch implements supports for EHCI controllers whose MMIO registers are big endian and enables that functionality for the Toshiba SCC chip. It does _not_ add support for big endian in-memory data structures as this is not needed for that chip and I hope it will never be. The guts of the patch are to convert readl(...) to ehci_readl(ehci, ...) and similarly for register writes. Signed-off-by: Kou Ishizaki <kou.ishizaki@toshiba.co.jp> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Acked-by: Geoff Levand <geoffrey.levand@am.sony.com> Acked-by: David Brownell <dbrownell@users.sourceforge.net> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2006-09-27USB: Properly unregister reboot notifier in case of failure in ehci hcdAleksey Gorelov
If some problem occurs during ehci startup, for instance, request_irq fails, echi hcd driver tries it best to cleanup, but fails to unregister reboot notifier, which in turn leads to crash on reboot/poweroff. The following patch resolves this problem by not using reboot notifiers anymore, but instead making ehci/ohci driver get its own shutdown method. For PCI, it is done through pci glue, for everything else through platform driver glue. One downside: sa1111 does not use platform driver stuff, and does not have its own shutdown hook, so no 'shutdown' is called for it now. I'm not sure if it is really necessary on that platform, though. Signed-off-by: Aleks Gorelov <dared1st@yahoo.com> Cc: Alan Stern <stern@rowland.harvard.edu> Cc: David Brownell <david-b@pacbell.net> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2006-07-02[PATCH] irq-flags: usb: Use the new IRQF_ constantsThomas Gleixner
Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Cc: Ingo Molnar <mingo@elte.hu> Cc: "David S. Miller" <davem@davemloft.net> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: Greg KH <greg@kroah.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-06-21[PATCH] USB: allow multiple types of EHCI controllers to be built as modulesKumar Gala
In some systems we may have both a platform EHCI controller and PCI EHCI controller. Previously we couldn't build the EHCI support as a module due to conflicting module_init() calls in the code. Signed-off-by: Kumar Gala <galak@kernel.crashing.org> Signed-off-by: David Brownell <dbrownell@users.sourceforge.net> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2006-03-20[PATCH] USB: Fix masking bug initialization of Freescale EHCI controllerKumar Gala
In setting up the of PHY we masked off too many bits, instead just initialize PORTSC for the type of PHY we are using. Signed-off-by: Kumar Gala <galak@kernel.crashing.org> Acked-by: David Brownell <dbrownell@users.sourceforge.net> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2006-03-20[PATCH] USB: EHCI and Freescale 83xx quirkKumar Gala
On the MPC834x processors the multiport host (MPH) EHCI controller has an erratum in which the port number in the queue head expects to be 0..N-1 instead of 1..N. If we are on one of these chips we subtract one from the port number before putting it into the queue head. Signed-off-by: Kumar Gala <galak@kernel.crashing.org> Signed-off-by: David Brownell <dbrownell@users.sourceforge.net> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2006-03-20[PATCH] USB: EHCI for Freescale 83xxRandy Vinson
Adding a Host Mode USB driver for the Freescale 83xx. This driver supports both the Dual-Role (DR) controller and the Multi-Port-Host (MPH) controller present in the Freescale MPC8349. It has been tested with the MPC8349CDS reference system. This driver depends on platform support code for setting up the pins on the device package in a manner appropriate for the board in use. Note that this patch requires selecting the EHCI controller option under the USB Host menu. Signed-off-by: Randy Vinson <rvinson@mvista.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>