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2013-08-24usbdebug: Only test two possible USB device numbersKyösti Mälkki
After an USB device sees USB bus reset on the bus, it will reset to device number 0. Per the EHCI debug port specification, a debug dongle device may reset to the fixed debug device number of 127 instead. Thus there is no need to try device numbers from 1 to 126. Do a sanity-check on a returned debug descriptor as I experienced some USB flash memory to respond on this request with zero-fill data. Change-Id: I78d58f3dc049cd8c20c6e2aa3a4207ad7e6a6d33 Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com> Reviewed-on: http://review.coreboot.org/3861 Tested-by: build bot (Jenkins) Reviewed-by: Aaron Durbin <adurbin@google.com>
2013-08-23usbdebug: Halt host controller before resetting itKyösti Mälkki
Resetting an EHCI controller when it is not halted can have undefined behaviour. This mostly fixes a case where calling usbdebug_init() twice would fail to reset the USB dongle device properly. On amd/persimmon it still requires one extra retry, but at least it is now possible to have usbdebug enabled for both romstage and ramstage. Change-Id: Ib0e6e5a0167404f68af2edf112306fdb8def0be9 Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com> Reviewed-on: http://review.coreboot.org/3862 Tested-by: build bot (Jenkins) Reviewed-by: Alexandru Gagniuc <mr.nuke.me@gmail.com>
2013-08-23usbdebug: Add compatibility quirk for FX2Kyösti Mälkki
This quirk is needed with a DIY debug dongle using obsolete CY7C68013 (aka FX2) USB chips. Old revision of chip requires a SET_CONFIGURATION to be sent, while this is not required in EHCI debug port specs. Change-Id: I4926eb19b7e991d6efeef782682756571ad006b9 Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com> Reviewed-on: http://review.coreboot.org/3386 Tested-by: build bot (Jenkins) Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net> Reviewed-by: Alexandru Gagniuc <mr.nuke.me@gmail.com>
2013-08-23usbdebug: Block recursive calls of printkKyösti Mälkki
When we create low-level debugging of EHCI controller registers, we call printk() within printk(). In ramstage this would leave us with deadlock waiting on the console spinlock. Change-Id: Idbe029af9af76de27094bb2964c60d9ccfdd96e6 Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com> Reviewed-on: http://review.coreboot.org/3860 Tested-by: build bot (Jenkins) Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
2013-08-23usbdebug: Add logging level to debuggingKyösti Mälkki
Increase existing level from DEBUG to INFO. Change-Id: Ic5934aec449f921af96dd3a6524f7275f8de1304 Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com> Reviewed-on: http://review.coreboot.org/3859 Tested-by: build bot (Jenkins) Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
2013-08-10usbdebug: Add option for verbose logging of connectionKyösti Mälkki
Add option to log changes in USB 2.0 EHCI debug port connection. For romstage move usbdebug as the last initialised console so one actually can see these messages. Init order of consoles in ramstage is undetermined and unchanged. Change-Id: I3aceec8a93064bd952886839569e9f5beb6c5720 Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com> Reviewed-on: http://review.coreboot.org/3387 Tested-by: build bot (Jenkins) Reviewed-by: Aaron Durbin <adurbin@google.com>
2013-07-30usbdebug: Fix missing includeKyösti Mälkki
Change-Id: I74d28c13e6597c56e3b85ccd2b83386b86c200f0 Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com> Reviewed-on: http://review.coreboot.org/3828 Tested-by: build bot (Jenkins)
2013-07-24usbdebug: Split endpoint buffersKyösti Mälkki
Refactor the structure to better support receive and another set of endpoints over usbdebug. Change-Id: Ib0f76afdf4e638363ff30c67010920142c58f250 Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com> Reviewed-on: http://review.coreboot.org/3726 Tested-by: build bot (Jenkins) Reviewed-by: Aaron Durbin <adurbin@google.com>
2013-07-11usbdebug: Cleanup dbgp_ehci_info callKyösti Mälkki
Change-Id: I9cad64796fcfb7a50d9ed9ec95c56ab855c872e3 Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com> Reviewed-on: http://review.coreboot.org/3766 Tested-by: build bot (Jenkins) Reviewed-by: Aaron Durbin <adurbin@google.com>
2013-07-10usbdebug: Put ehci_debug_info in CAR_GLOBALKyösti Mälkki
Store EHCI Debug Port runtime variables in CAR_GLOBAL. For platforms without CAR_MIGRATION, logging on EHCI Debug Port is temporarily lost when CAR is torn down at end of romstage. On model_2065x and model_206ax ehci_debug_info was overlapping the MRC variable region and additionally migration used incorrect size for the structure. Change-Id: I5e6c613b8a4b1dda43d5b69bd437753108760fca Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com> Reviewed-on: http://review.coreboot.org/3475 Tested-by: build bot (Jenkins) Reviewed-by: Aaron Durbin <adurbin@google.com> Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
2013-07-10usbdebug: Move EHCI BAR relocation codeKyösti Mälkki
There are other uses for EHCI debug port besides console, so move EHCI relocation code from console to lib. Change-Id: I95cddd31be529351d9ec68f14782cc3cbe08c617 Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com> Reviewed-on: http://review.coreboot.org/3626 Tested-by: build bot (Jenkins) Reviewed-by: Aaron Durbin <adurbin@google.com> Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
2013-07-10usbdebug: Move ehci_debug_info allocationKyösti Mälkki
Move ehci_debug_info allocation from console to lib, as console code was only built for ramstage. Implement dbgp_ehci_info() to return the EHCI context. Alread alias this as dbgp_console_input() and _output() to return the console stream context later on. Change-Id: Id6cc07d62953f0466df61eeb159e22b0e3287d4e Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com> Reviewed-on: http://review.coreboot.org/3625 Tested-by: build bot (Jenkins) Reviewed-by: Aaron Durbin <adurbin@google.com> Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
2013-07-10usbdebug: Refactor disable logicKyösti Mälkki
Output to usbdebug console needs to be disabled until hardware is initialized and while EHCI BAR is relocated. Add separate field ehci_info to point to back to EHCI context when hardware is ready to transfer data. Change-Id: If7d441b561819ab8ae23ed9f3f320f7742ed231e Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com> Reviewed-on: http://review.coreboot.org/3624 Tested-by: build bot (Jenkins) Reviewed-by: Aaron Durbin <adurbin@google.com>
2013-07-10lib: Fix spellingMartin Roth
Change-Id: I999987af9cb44906e3c3135c0351a0cd6eb210ff Signed-off-by: Martin Roth <martin.roth@se-eng.com> Reviewed-on: http://review.coreboot.org/3756 Reviewed-by: Dave Frodin <dave.frodin@se-eng.com> Tested-by: build bot (Jenkins) Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
2013-06-12usbdebug: Improve solving EHCI debug port problemsKyösti Mälkki
Add comment how one can debug the usbdebug hardware init. Do not send printk's to usbdebug console when one is debugging the usbdebug console initialisation itself. Change-Id: I21a285cb31cf64e853bc626f8b6a617bc5a8be19 Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com> Reviewed-on: http://review.coreboot.org/3382 Tested-by: build bot (Jenkins) Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net> Reviewed-by: Marc Jones <marc.jones@se-eng.com>
2012-07-30USBDEBUG: retry harder for slow devicesSven Schnelle
Some usb debug devices don't respond fast enough. The linux kernel (which uses almost the same usbdebug code) added a bit more retry code, so let's copy that. Even if it might look stupid, i pass the DBG_LOOPS argument through all functions to keep the code at least a bit in sync with the linux kernel code. Change-Id: I7c4b63b8bf1d2270fd6b8c8aa835e2cb324820bd Signed-off-by: Sven Schnelle <svens@stackframe.org> Reviewed-on: http://review.coreboot.org/1375 Tested-by: build bot (Jenkins) Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
2012-07-26USBDEBUG: buffer up to 8 bytesSven Schnelle
EHCI debug allows to send message with 8 bytes length, but we're only sending one byte in each transaction. Buffer up to 8 bytes to speed up debug output. Change-Id: I9dbb406833c4966c3afbd610e1b13a8fa3d62f39 Signed-off-by: Sven Schnelle <svens@stackframe.org> Reviewed-on: http://review.coreboot.org/1357 Tested-by: build bot (Jenkins) Reviewed-by: Nico Huber <nico.huber@secunet.com>
2011-11-01remove trailing whitespaceStefan Reinauer
Change-Id: Ib91889a374515d36a2b12b53aeb12b6ea6e22732 Signed-off-by: Stefan Reinauer <reinauer@google.com> Reviewed-on: http://review.coreboot.org/364 Tested-by: build bot (Jenkins) Reviewed-by: Patrick Georgi <patrick@georgi-clan.de>
2011-10-31Fix usb debug dongle supportSven Schnelle
- move enable_usbdebug() declaration to usbdebug.h - reinitialize debug driver in ramstage, as copying the data structure from romstage doesn't work right now. This way of copying data from romstage to ramstage is really board/cpu specific, and is likely to break often. So don't do it. Change-Id: I394678ded6679c1803e29eb691b926182bdcab68 Signed-off-by: Sven Schnelle <svens@stackframe.org> Reviewed-on: http://review.coreboot.org/355 Tested-by: build bot (Jenkins) Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
2011-01-28This patch gets usbdebug console working in romstage.Stefan Reinauer
- actually hook up usbdebug in printk/print_ for romstage - make usbdebug.c more similar to the Linux kernel version it was originally derived from. - increase retries and timing for usbdebug init (at least one chipset seems to need this) - src/pc80/usbdebug_serial.c is not needed - some small console cleanups Signed-off-by: Stefan Reinauer <reinauer@google.com> Acked-by: Patrick Georgi <patrick.georgi@secunet.com> git-svn-id: svn://svn.coreboot.org/coreboot/trunk@6315 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
2010-09-23USB Debug Port related license header fixes (trivial).Uwe Hermann
- Add missing license headers, or missing (C) lines to various files. (most are from AMD / Yinghai Lu, based on svn logs) - src/include/ehci.h was taken from the Linux kernel. Updating it to the latest version from git HEAD while I'm at it (build-tested with one board). It also sports some new EHCI 1.1 addendum #defines which we may or may not need. This new file also already has a proper GPL header. Signed-off-by: Uwe Hermann <uwe@hermann-uwe.de> Acked-by: Uwe Hermann <uwe@hermann-uwe.de> git-svn-id: svn://svn.coreboot.org/coreboot/trunk@5828 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
2010-09-22Fix a compiler warning in src/lib/usbdebug.c (trivial).Uwe Hermann
The 'delay' variable shadows the global 'delay()' function, yielding this compiler warning/error: src/pc80/../lib/usbdebug.c: In function `ehci_reset_port': src/pc80/../lib/usbdebug.c:281: error: declaration of `delay' shadows a global declaration src/lib/delay.c:9: error: shadowed declaration is here This fixes the issue by renaming the 'delay' variable to 'delay_ms'. Signed-off-by: Uwe Hermann <uwe@hermann-uwe.de> Acked-by: Uwe Hermann <uwe@hermann-uwe.de> git-svn-id: svn://svn.coreboot.org/coreboot/trunk@5826 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
2010-08-30We call this cache as ram everywhere, so let's call it the same in KconfigStefan Reinauer
Signed-off-by: Stefan Reinauer <stepan@coresystems.de> Acked-by: Myles Watson <mylesgw@gmail.com> Acked-by: Peter Stuge <peter@stuge.se> git-svn-id: svn://svn.coreboot.org/coreboot/trunk@5756 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
2010-08-04Remove warnings from USB debug console code.Myles Watson
Signed-off-by: Myles Watson <mylesgw@gmail.com> Acked-by: Stefan Reinauer <stepan@coresystems.de> git-svn-id: svn://svn.coreboot.org/coreboot/trunk@5683 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
2010-08-03Drop the USE_PRINTK_IN_CAR option. It's a bogus decision to make for any user /Stefan Reinauer
board porter: printk should always be available in CAR mode. Also drop CONFIG_USE_INIT, it's only been selected on one ASROCK board but it's not been used there. Very odd. There is one usage of CONFIG_USE_INIT which was always off in src/cpu/intel/car/cache_as_ram.inc and we have to figure out what to do with those few lines. Signed-off-by: Stefan Reinauer <stepan@coresystems.de> Acked-by: Peter Stuge <peter@stuge.se> git-svn-id: svn://svn.coreboot.org/coreboot/trunk@5682 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
2010-05-25fix most usbdebug warnings and fix function names.Stefan Reinauer
Signed-off-by: Stefan Reinauer <stepan@coresystems.de> Acked-by: Stefan Reinauer <stepan@coresystems.de> git-svn-id: svn://svn.coreboot.org/coreboot/trunk@5587 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
2010-05-25Long ago we agreed on kicking the _direct appendix because everything inStefan Reinauer
coreboot is direct. This patch does it. Signed-off-by: Stefan Reinauer <stepan@coresystems.de> Acked-by: Stefan Reinauer <stepan@coresystems.de> git-svn-id: svn://svn.coreboot.org/coreboot/trunk@5586 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
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