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* USB style patch, 80 chars strictMichael Trimarchi2008-11-28-15/+25
| | | | | | | USB Code style patch Signed-off-by: Michael Trimarchi <trimarchi@gandalf.sssup.it> Signed-off-by: Remy Böhmer <linux@bohmer.net>
* fix USB initialisation procedureRemy Bohmer2008-10-14-28/+28
| | | | | | | | | | | | | | | | | | | | | | | | | The max packet size is encoded as 0,1,2,3 for 8,16,32,64 bytes. At some places directly 8,16,32,64 was used instead of the encoded value. Made a enum for the options to make this more clear and to help preventing similar errors in the future. After fixing this bug it became clear that another bug existed where the 'pipe' is and-ed with PIPE_* flags, where it should have been 'usb_pipetype(pipe)', or even better usb_pipeint(pipe). Also removed the triple 'get_device_descriptor' sequence, it has no use, and Windows nor Linux behaves that way. There is also a poll going on with a timeout when usb_control_msg() fails. However, the poll is useless, because the flag will never be set on a error, because there is no code that runs in a parallel that can set this flag. Changed this to something more logical. Tested on AT91SAM9261ek and compared the flow on the USB bus to what Linux is doing. There is no difference anymore in the early initialisation sequence. Signed-off-by: Remy Bohmer <linux@bohmer.net> Signed-off-by: Markus Klotzbuecher <mk@denx.de>
* USB layer of U-Boot causes USB protocol errors while using USB memory sticksRemy Bohmer2008-09-17-20/+30
| | | | | | | | | | | | | | | | | | There are several differences between Linux, Windows and U-boot for initialising the USB devices. While analysing the behaviour of U-boot it turned out that U-boot does things really different, and some are wrong (compared to the USB standard). This patch fixes some errors: * The NEW_init procedure that was already in the code is good, while the old procedure is wrong. See code comments for more info. * On a Control request the data returned by the device can be more than 8 bytes, while the host limits it to 8 bytes. This caused the host to generate a DataOverrun error. This results in a lot of USB sticks not being recognised, and the transmission ended frequently with a CTL:TIMEOUT Error. * Added a flag CONFIG_LEGACY_USB_INIT_SEQ to allow users to use the old init procedure. Signed-off-by: Remy Bohmer <linux@bohmer.net> Signed-off-by: Markus Klotzbuecher <mk@denx.de>
* Refactoring parts of the common USB OHCI codeRemy Bohmer2008-09-17-236/+306
| | | | | | | | | | | | This patch refactors some large routines of the USB OHCI code by making some routines smaller and more readable which helps debugging and understanding the code. (Makes the code looks somewhat more like the Linux implementation.) Also made entire file compliant to Linux Coding Rules (checkpatch.pl compliant) Signed-off-by: Remy Bohmer <linux@bohmer.net> Signed-off-by: Markus Klotzbuecher <mk@denx.de>
* Fix for USB sticks not working on ARM while using GCC 4.x compilersRemy Bohmer2008-09-17-27/+46
| | | | | | | | | | | | | | | | | | | | | | | The GCC-compiler makes an optimisation error while optimising the routine usb_set_maxpacket(). This should be fixed in the compiler in the first place, but there lots of compilers out there that makes this error, that it is probably wiser to workaround it in U-boot itself. What happens is that the register r3 is used as loop-counter 'i', but gets overwritten later on. From there it starts using register r3 for several other things and the assembler code is becoming a big mess. This is clearly a compiler bug. This error occurs on at least several versions of Code Sourcery Lite compilers for ARM. Like the Edition 2008q1, and 2008q3, It has also been seen on other compilers, while compiling for armv4t, or armv5te with Os, O1 and O2. We work around it by splitting up this routine in 2 parts, and making sure that the split out part is NOT inlined any longer. This will make GCC spit out assembler that do not show this problem. Another possibility is to adapt the Makefile to stop optimisation for the complete file. I think this solution is nicer. Signed-off-by: Remy Bohmer <linux@bohmer.net> Signed-off-by: Markus Klotzbuecher <mk@denx.de>
* Make usb-stop() safe to call multiple times in a row.Remy Bohmer2008-09-09-4/+9
| | | | | | | | | | | | | | | | | | | | | | | A recent commit (936897d4d1365452bbbdf8430db5e7769ef08d38) enabled the usb_stop() command in common/cmd_bootm.c which was not enabled for some time, because no board did actually set the CFG_CMD_USB flag. So, now the usb_stop() is executed before loading the linux kernel. However, the usb_ohci driver hangs up (at least on AT91SAM) if the driver is stopped twice (e.g. the peripheral clock is stopped on AT91). If some other piece of code calls usb_stop() before the bootm command, this command will hangup the system during boot. (usb start and stop is typically used while booting from usb memory stick) But, stopping the usb stack twice is useless anyway, and a flag already existed that kept track on the usb_init()/usb_stop() calls. So, we now check if the usb stack is really started before we stop it. This problem is now fixed in both the upper as low-level layer. Signed-off-by: Remy Bohmer <linux@bohmer.net> Acked-by: Markus Klotzbuecher <mk@denx.de>
* common: Move conditional compilation to MakefileJean-Christophe PLAGNIOL-VILLARD2008-08-13-4/+0
| | | | Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
* Code cleanup: fix old style assignment ambiguities like "=-" etc.Wolfgang Denk2008-07-14-3/+3
| | | | Signed-off-by: Wolfgang Denk <wd@denx.de>
* USB: replace old swap_ with proper endianess conversion macrosChristian Eggers2008-05-22-22/+22
| | | | | Signed-off-by: Christian Eggers <ceggers@gmx.de> Signed-off-by: Markus Klotzbuecher <mk@denx.de>
* Big white-space cleanup.Wolfgang Denk2008-05-21-3/+3
| | | | | | | | | | | This commit gets rid of a huge amount of silly white-space issues. Especially, all sequences of SPACEs followed by TAB characters get removed (unless they appear in print statements). Also remove all embedded "vim:" and "vi:" statements which hide indentation problems. Signed-off-by: Wolfgang Denk <wd@denx.de>
* common/usb.c: fix incorrect escape sequenceHebbar2008-05-20-1/+1
| | | | Signed off by: Gururaja Hebbar <gururajakr@sanyo.co.in>
* ppc4xx: Rename 405gp_pci to 4xx_pci since its used on all 4xx platformsStefan Roese2007-10-31-1/+1
| | | | | | | | These files were introduced with the IBM 405GP but are currently used on all 4xx PPC platforms. So the name doesn't match the content anymore. This patch renames the files to 4xx_pci.c/h. Signed-off-by: Stefan Roese <sr@denx.de>
* common/* non-cmd*: Remove obsolete references to CONFIG_COMMANDSJon Loeliger2007-07-08-2/+2
| | | | Signed-off-by: Jon Loeliger <jdl@freescale.com>
* common/ non-cmd: Augment CONFIG_COMMANDS tests with defined(CONFIG_CMD_*).Jon Loeliger2007-07-04-1/+1
| | | | | | | | | | | | | | This is a compatibility step that allows both the older form and the new form to co-exist for a while until the older can be removed entirely. All transformations are of the form: Before: #if (CONFIG_COMMANDS & CFG_CMD_AUTOSCRIPT) After: #if (CONFIG_COMMANDS & CFG_CMD_AUTOSCRIPT) || defined(CONFIG_CMD_AUTOSCRIPT) Signed-off-by: Jon Loeliger <jdl@freescale.com>
* Prevent USB commands from working when USB is stopped.Bartlomiej Sieka2006-08-03-0/+5
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* Add rudimentary handling of alternate settings of USB interfaces - to fixBartlomiej Sieka2006-08-02-33/+53
| | | | problems with some USB storage devices. Some code readability improvements.
* (re)enabled scsi commands do_scsi() and do_scsiboot()Wolfgang Denk2005-08-04-3/+13
| | | | Patch by Denis Peter, 06 Dec 2004
* Coding style cleanupWolfgang Denk2005-08-02-10/+9
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* Fix low-level OHCI transfers for ARM920t and MPC5xxxWolfgang Denk2005-07-21-64/+190
| | | | | | | | A new, Windows compatible init sequence was also backported from Linux 2.6, but disabled with #undef NEW_INIT_SEQ as it wouldn't change the behaviour of the memopry sticks we tested. Maybe it's not relevant for mass storage devices. For recerence, see file common/usb.c, function usb_new_device(), section #ifdef NEW_INIT_SEQ.
* Code cleanup for GCC-3.3.x compilerswdenk2004-10-17-1/+3
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* * Patch by Laurent Mohin, 10 Feb 2004:wdenk2004-02-23-6/+31
| | | | | | | | | Fix buffer overflow in common/usb.c * Patch by Tolunay Orkun, 10 Feb 2004: Add support for Cogent CSB272 board * Code cleanup
* * Patches by Anders Larsen, 17 Sep 2003:wdenk2003-09-18-1/+1
| | | | | | | | | | - fix spelling errors - set GD_FLG_DEVINIT flag only after device function pointers are valid - Allow CFG_ALT_MEMTEST on systems where address zero isn't writeable - enable 3.rd UART (ST-UART) on PXA(XScale) CPUs - trigger watchdog while waiting in serial driver
* * Code cleanup:wdenk2003-06-27-1/+0
| | | | | | | | | - remove trailing white space, trailing empty lines, C++ comments, etc. - split cmd_boot.c (separate cmd_bdinfo.c and cmd_load.c) * Patches by Kenneth Johansson, 25 Jun 2003: - major rework of command structure (work done mostly by Michal Cendrowski and Joakim Kristiansen)
* Initial revisionwdenk2002-08-17-0/+1066
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