summaryrefslogtreecommitdiffstats
path: root/drivers/i2c/ppc4xx_i2c.c
Commit message (Collapse)AuthorAgeFilesLines
* ppc4xx: Handle i2c stuck on combined xferDirk Eibach2014-11-101-0/+21
| | | | | | | | | | | | ppc4xx i2c master gets stuck on errors while repeated start is active. Can be easily reproduced by "i2c md" on an unpopulated i2c address. There is not stop condition given, scl remains pulled low. The only way out seems to be doing a stop manually and then a soft reset. Signed-off-by: Dirk Eibach <dirk.eibach@gdsys.cc> Reviewed-by: Stefan Roese <sr@denx.de>
* ppc4xx: Fix i2c repeated startDirk Eibach2014-11-101-4/+5
| | | | | | | | | | | | | Debugging some i2c trouble I saw on my scope that repeated start is not working properply. The 4xx even held clock pulled down after transfers. Having a look in the driver I realized that IIC_CNTL_RPST is set on that part of the transfer that should begin with a repeated start. But repeated start is about not sending a stop condition, so IIC_CNTL_RPST has to be set on the last transfer before the repeated start happens. Signed-off-by: Dirk Eibach <dirk.eibach@gdsys.cc> Reviewed-by: Stefan Roese <sr@denx.de>
* Merge branch 'master' of git://git.denx.de/u-boot-i2cTom Rini2013-07-241-97/+96
|\ | | | | | | | | | | | | | | | | | | | | The sandburst-specific i2c drivers have been deleted, conflict was just over the SPDX conversion. Conflicts: board/sandburst/common/ppc440gx_i2c.c board/sandburst/common/ppc440gx_i2c.h Signed-off-by: Tom Rini <trini@ti.com>
| * i2c, ppc4xx_i2c: switch to new multibus/multiadapter supportDirk Eibach2013-07-231-97/+96
| | | | | | | | | | | | | | Signed-off-by: Dirk Eibach <dirk.eibach@gdsys.cc> Cc: Heiko Schocher <hs@denx.de> Cc: Stefan Roese <sr@denx.de> Tested-by: Stefan Roese <sr@denx.de>
* | Add GPL-2.0+ SPDX-License-Identifier to source filesWolfgang Denk2013-07-241-17/+1
|/ | | | | | Signed-off-by: Wolfgang Denk <wd@denx.de> [trini: Fixup common/cmd_io.c] Signed-off-by: Tom Rini <trini@ti.com>
* console: Squelch pre-console output in console functionsGraeme Russ2011-10-011-4/+1
| | | | | | | | | | There are some locations in the code which anticipate printf() being called before the console is ready by squelching printf() on gd->have_console. Move this squelching into printf(), vprintf(), puts() and putc(). Also make tstc() and getc() return 0 if console is not yet initialised Signed-off-by: Graeme Russ <graeme.russ@gmail.com> Tested-by: Simon Glass <sjg@chromium.org>
* ppc4xx: Move ppc4xx headers to powerpc include directoryStefan Roese2010-09-231-2/+2
| | | | | | | | | This patch moves some ppc4xx related headers from the common include directory (include/) to the powerpc specific one (arch/powerpc/include/asm/). This way to common include directory is not so cluttered with files. Signed-off-by: Stefan Roese <sr@denx.de>
* Replace "#include <asm-$ARCH/$FILE>" with "#include <asm/$FILE>"Peter Tyser2010-04-131-1/+1
| | | | | | | | | | The appropriate include/asm-$ARCH directory should already by symlinked to include/asm so using the whole "asm-$ARCH" path is unnecessary. This change should also allow us to move the include/asm-$ARCH directories into their appropriate lib/$ARCH/ directories. Signed-off-by: Peter Tyser <ptyser@xes-inc.com>
* i2c: Move PPC4xx I2C driver into drivers/i2c directoryStefan Roese2010-04-061-0/+439
This patch moves the PPC4xx specific I2C device driver into the I2C drivers directory. All 4xx config headers are updated to include this driver. Signed-off-by: Stefan Roese <sr@denx.de>
OpenPOWER on IntegriCloud