Commit graph

8 commits

Author SHA1 Message Date
Timur Tabi
e739bc9579 FSL I2C driver programs the two I2C busses differently
The i2c_init() function in fsl_i2c.c programs the two I2C busses differently.
The second I2C bus has its slave address programmed incorrectly and is
missing a 5-us delay.

Signed-off-by: Timur Tabi <timur@freescale.com>
Signed-off-by: Kim Phillips <kim.phillips@freescale.com>
2007-08-10 01:12:03 -05:00
Joakim Tjernlund
f6f5f709e5 mpc83xx: Fix empty i2c reads/writes in fsl_i2c.c
Fix empty i2c reads/writes, i2c_write(0x50, 0x00, 0, NULL, 0)
which is used to se if an slave will ACK after receiving its address.

Correct i2c probing to use this method as the old method could upset
a slave as it wrote a data byte to it.

Add a small delay in i2c_init() to let the controller
shutdown any ongoing I2C activity.

Signed-off-by: Joakim Tjernlund <Joakim.Tjernlund@transmode.se>
2007-03-02 11:05:54 -06:00
Joakim Tjernlund
1939d96944 Make fsl-i2c not conflict with SOFT I2C
Signed-off-by: Timur Tabi <timur@freescale.com>
2006-11-29 00:25:26 -06:00
Joakim Tjernlund
14198bf768 Fix I2C master address initialization.
Signed-off-by: Timur Tabi <timur@freescale.com>
2006-11-29 00:25:23 -06:00
Timur Tabi
be5e61815d mpc83xx: Update 83xx to use fsl_i2c.c
Update the 83xx tree to use I2C support in drivers/fsl_i2c.c.  Delete
cpu/mpc83xx/i2c.c, include/asm-ppc/i2c.h, and all references to those files.
Added multiple I2C bus support to fsl_i2c.c.

Signed-off-by: Timur Tabi <timur@freescale.com>
2006-11-03 19:42:23 -06:00
Jon Loeliger
2047672684 Converted all 85xx boards to use a common FSL I2C driver.
Introduced COFIG_FSL_I2C to select the common FSL I2C driver.
And removed hard i2c path from a few u-boot.lds scipts too.
Minor whitespace cleanups along the way.

Signed-off-by: Jon Loeliger <jdl@freescale.com>
2006-10-20 15:50:15 -05:00
Jon Loeliger
4d45f69e36 Rewrite a series of goto statements as a sequences of
conditional expressions instead.

Use consistent return code 0/-1 for good/bad indicators.

Include one fewer file if the driver isn't used at all.

Signed-off-by: Jon Loeliger <jdl@freescale.com>
2006-10-19 12:02:24 -05:00
Jon Loeliger
7237c033b0 Moved i2c driver out of cpu/mpc86xx/i2c.c into drivers/fsl_i2c.c
in an effort to begin to unify the umpteen FSL I2C drivers that
are all otherwise very similar.

Signed-off-by: Jon Loeliger <jdl@freescale.com>
2006-10-19 11:34:11 -05:00
Renamed from cpu/mpc86xx/i2c.c (Browse further)