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* i.MX31: Start the I2C clock on driver initialisationGuennadi Liakhovetski2009-02-14-0/+6
| | | | | | | | | | | | i.MX31 powers on with most clocks running, so, after a power on this explicit clock start up is not required. However, as Linux boots it disables most clocks to save power. This includes the I2C clock. If we then soft reboot from Linux the I2C clock stays off. This breaks the phycore, which has its environment in I2C EEPROM. Fix the problem by explicitly starting the clock in I2C driver initialisation routine. Signed-off-by: Guennadi Liakhovetski <lg@denx.de> Ack-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
* Merge branch 'master' of git://git.denx.de/u-boot-armWolfgang Denk2009-02-01-0/+24
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| * OMAP3: Add I2C supportDirk Behme2009-01-24-0/+24
| | | | | | | | | | | | Add I2C support. Signed-off-by: Dirk Behme <dirk.behme@googlemail.com>
* | Blackfin: overhaul i2c driverMike Frysinger2009-01-28-0/+286
| | | | | | | | | | | | | | | | | | | | | | The current Blackfin i2c driver does not work properly with certain devices due to it breaking up transfers incorrectly. This is a rewrite of the driver and relocates it to the newer place in the source tree. Also remove duplicated I2C speed defines in Blackfin board configs and disable I2C slave address usage since it isn't implemented. Signed-off-by: Mike Frysinger <vapier@gentoo.org>
* | soft_i2c.c add option for repeated start in i2c_read()Andrew Dyer2009-01-27-1/+11
|/ | | | | | | | | | | | | | | | This patch adds a #define to optionally change the behaviour of i2c_read() in soft_i2c.c to send an I2C repeated start instead of a stop-start between sending the device address pointer write and reading back the data. The current behaviour is retained as the default. While most devices will work either way, I have a smart battery(*) that requires repeated start, and someone at some point found a device that required a stop-start. (*) http://www.inspired-energy.com/Standard_Products/NL2054/NL2054%20Rev1.0%20Data%20Sheet.pdf Signed-off-by: Andrew Dyer <adyer@righthandtech.com>
* Coding style cleanup, update CHANGELOG.Wolfgang Denk2008-12-16-1/+0
| | | | Signed-off-by: Wolfgang Denk <wd@denx.de>
* i2c: merge all i2c_reg_read() and i2c_reg_write() into inline functionsTimur Tabi2008-12-15-35/+0
| | | | | | | | | | All implementations of the functions i2c_reg_read() and i2c_reg_write() are identical. We can save space and simplify the code by converting these functions into inlines and putting them in i2c.h. Signed-off-by: Timur Tabi <timur@freescale.com> Acked-By: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
* Section name should be ".data", not "data"Trent Piepho2008-12-09-5/+4
| | | | | Signed-off-by: Trent Piepho <tpiepho@freescale.com> Signed-off-by: Wolfgang Denk <wd@denx.de>
* ARM: OMAP: Convert IO macrosDirk Behme2008-11-21-67/+64
| | | | | | Convert IO macros to readx/writex. Signed-off-by: Dirk Behme <dirk.behme@gmail.com>
* Cleanup: fix "MHz" spellingWolfgang Denk2008-10-21-2/+2
| | | | Signed-off-by: Wolfgang Denk <wd@denx.de>
* mgsuvd: fix compiler warning when using soft_i2c driverHeiko Schocher2008-10-18-0/+4
| | | | Signed-off-by: Heiko Schocher <hs@denx.de>
* rename CFG_ macros to CONFIG_SYSJean-Christophe PLAGNIOL-VILLARD2008-10-18-38/+38
| | | | Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
* I2C: adding new "i2c bus" Command to the I2C Subsystem.Heiko Schocher2008-10-18-1/+14
| | | | | | | With this Command it is possible to add new I2C Busses, which are behind 1 .. n I2C Muxes. Details see README. Signed-off-by: Heiko Schocher <hs@denx.de>
* soft_i2c: Add CFG_I2C_INIT_BOARD optionHeiko Schocher2008-10-18-0/+11
| | | | | | | This patch adds the option for a boardspecific I2C deblocking mechanism for the soft i2c driver. Signed-off-by: Heiko Schocher <hs@denx.de>
* soft_i2c: prevent compiler warnings if driver does not use CPU Pins.Heiko Schocher2008-10-18-37/+6
| | | | | | | | | | | | | | | | | | | | | This patch fixes the following warnings, when using the soft_i2c driver using no CPU pins on MPC82xx or MPC8xx systems: soft_i2c.c: In function 'send_reset': soft_i2c.c:93: warning: unused variable 'immr' soft_i2c.c: In function 'send_start': soft_i2c.c:124: warning: unused variable 'immr' soft_i2c.c: In function 'send_stop': soft_i2c.c:146: warning: unused variable 'immr' soft_i2c.c: In function 'send_ack': soft_i2c.c:171: warning: unused variable 'immr' soft_i2c.c: In function 'write_byte': soft_i2c.c:196: warning: unused variable 'immr' soft_i2c.c: In function 'read_byte': soft_i2c.c:244: warning: unused variable 'immr' Signed-off-by: Heiko Schocher <hs@denx.de>
* i2c: add CONFIG_I2C_MULTI_BUS for soft_i2c and mpc8260 i2c driver.Heiko Schocher2008-10-18-0/+36
| | | | Signed-off-by: Heiko Schocher <hs@denx.de>
* Merge branch 'Makefile' of git://git.denx.de/u-boot-armWolfgang Denk2008-09-01-0/+424
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| * soft_i2c: move to drivers/i2cJean-Christophe PLAGNIOL-VILLARD2008-08-29-0/+424
| | | | | | | | Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
* | Add I2C frequency dividers for ColdFireTsiChung Liew2008-08-28-1/+33
|/ | | | | | | | | | The existing I2C freqency dividers for FDR does not apply to ColdFire platforms; thus, a seperate table is added based on MCF5xxx Reference Manual Signed-off-by: Luigi 'Comio' Mantellini <luigi.mantellini@idf-hit.com> Signed-off-by: TsiChung Liew <Tsi-Chung.Liew@freescale.com> Acked-by: Tabi Timur <timur@freescale.com>
* i2c: Clean drivers/i2c/ MakefileMichal Simek2008-08-18-18/+6
| | | | Signed-off-by: Michal Simek <monstr@monstr.eu>
* Fix merge problemsStefan Roese2008-08-06-7/+11
| | | | Signed-off-by: Stefan Roese <sr@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>
* Fix warnings introduced by I2C bus speed setting patchKumar Gala2008-04-13-4/+3
| | | | Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
* add an i2c driver for mx31Sascha Hauer2008-04-13-0/+203
| | | | | | | This patch adds an i2c driver for Freescale i.MX processors Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de> Signed-off-by: Guennadi Liakhovetski <lg@denx.de>
* Revert merge of git://www.denx.de/git/u-boot-arm, commit 62479b18:Wolfgang Denk2008-04-11-208/+0
| | | | | | | | | | | | | | | | | | | | | | Reverting became necessary after it turned out that the patches in the u-boot-arm repo were modified, and in some cases corrupted. This reverts the following commits: 066bebd6353e33af3adefc3404560871699e9961 7a837b7310166ae8fc8b8d66d7ef01b60a80f9d6 c88ae20580b2b01487b4cdcc8b2a113f551aee36 a147e56f03871bba4f05058d5e04ce7deb010b04 d6674e0e2a6a1f033945f78838566210d3f28c95 8c8463cce44d849e37744749b32d38e1dfb12e50 c98b47ad24b2d91f41c09a3d62d7f70ad84f4b7d 8bf69d81782619187933a605f1a95ee1d069478d 8c16cb0d3b971f46fbe77c072664c0f2dcd4471d a574a73852a527779234e73e17e7597fd8128882 1377b5583a48021d983e1fd565f7d40c89e84d63 1704dc20917b4f71e373e2c888497ee666d40380 Signed-off-by: Wolfgang Denk <wd@denx.de>
* add an i2c driver for mx31Sascha Hauer2008-03-30-0/+208
| | | | | | | This patch adds an i2c driver for Freescale i.MX processors Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de> Signed-off-by: Guennadi Liakhovetski <lg@denx.de>
* Add support for setting the I2C bus speed in fsl_i2c.cTimur Tabi2008-03-27-9/+105
| | | | | | | | | | Add support to the Freescale I2C driver (fsl_i2c.c) for setting and querying the I2C bus speed. Current 8[356]xx boards define the CFG_I2C_SPEED macro, but fsl_i2c.c ignores it and uses conservative value when programming the I2C bus speed. Signed-off-by: Timur Tabi <timur@freescale.com> Acked-by: Andy Fleming <afleming@freescale.com>
* drivers/i2c : move i2c drivers to drivers/i2cJean-Christophe PLAGNIOL-VILLARD2007-11-20-0/+1237
Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
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