u-boot.git/include/i2c.h, branch v2009.01

i2c: merge all i2c_reg_read() and i2c_reg_write() into inline functions

2008-12-15T22:46:21+00:00

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 
Acked-By: Jean-Christophe PLAGNIOL-VILLARD

rename CFG_ macros to CONFIG_SYS

2008-10-18T19:54:03+00:00

Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD

I2C: adding new "i2c bus" Command to the I2C Subsystem.

2008-10-18T19:54:02+00:00

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

soft_i2c: prevent compiler warnings if driver does not use CPU Pins.

2008-10-18T19:54:01+00:00

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

Big white-space cleanup.

2008-05-20T22:14:08+00:00

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

[PATCH] I2C: Add missing default CFG_SPD_BUS_NUM

2007-03-08T21:16:00+00:00

Signed-off-by: Matthias Fuchs

[PATCH] I2C: Add missing default CFG_RTC_BUS_NUM & CFG_DTT_BUS_NUM

2007-03-01T06:03:25+00:00

Signed-off-by: Stefan Roese

[PATCH] PPC4xx: Add support for multiple I2C busses

2007-02-20T09:27:08+00:00

This patch adds support for multiple I2C busses on the PPC4xx
platforms. Define CONFIG_I2C_MULTI_BUS in the board config file
to make use of this feature.

It also merges the 405 and 440 i2c header files into one common
file 4xx_i2c.h.

Also the 4xx i2c reset procedure is reworked since I experienced
some problems with the first access on the 440SPe Katmai board.

Signed-off-by: Stefan Roese

mpc83xx: Fix dual I2C support for the MPC8349ITX, MPC8349EMDS, TQM834x, and MPC8360EMDS

2006-11-04T01:42:22+00:00

This patch also adds an improved I2C set_speed(), which handles all clock
frequencies.

Signed-off-by: Timur Tabi

Add support for multiple I2C buses

2006-11-04T01:42:19+00:00

Hello,

Attached is a patch providing support for multiple I2C buses at the
command level.  The second part of the patch includes an implementation
for the MPC834x CPU and MPC8349EMDS board.

/*** Note: This patch replaces ticket DNX#2006083042000018 ***/

Signed-off-by: Ben Warren 

Overview:

1. Include new 'i2c' command (based on USB implementation) using
CONFIG_I2C_CMD_TREE.

2. Allow multiple buses by defining CONFIG_I2C_MULTI_BUS.  Note that
the commands to change bus number and speed are only available under the
new 'i2c' command mentioned in the first bullet.

3. The option CFG_I2C_NOPROBES has been expanded to work in multi-bus
systems.  When CONFIG_I2C_MULTI_BUS is used, this option takes the form
of an array of bus-device pairs.  Otherwise, it is an array of uchar.

CHANGELOG:
        Added new 'i2c' master command for all I2C interaction.  This is
conditionally compiled with CONFIG_I2C_CMD_TREE.  New commands added for
setting I2C bus speed as well as changing the active bus if the board
has more than one (conditionally compiled with
CONFIG_I2C_MULTI_BUS).  Updated NOPROBE logic to handle multiple buses.
Updated README.

regards,
Ben