diff options
| author | Eric Millbrandt <emillbrandt@coldhaus.com> | 2009-09-03 08:09:44 -0500 |
|---|---|---|
| committer | Tom Rix <Tom.Rix@windriver.com> | 2009-10-03 09:04:14 -0500 |
| commit | 9179dd3bf5c257d1479fb4a154b57f33e3d839be (patch) | |
| tree | be3d86fbb4bbeaa93d845d8dbd43b519ec95736b /cpu/mpc85xx | |
| parent | e99846c07aec960b3f42f4826d05fa891ab6709a (diff) | |
| download | u-boot-imx-9179dd3bf5c257d1479fb4a154b57f33e3d839be.zip u-boot-imx-9179dd3bf5c257d1479fb4a154b57f33e3d839be.tar.gz u-boot-imx-9179dd3bf5c257d1479fb4a154b57f33e3d839be.tar.bz2 | |
Reset i2c slave devices during init on mpc5xxx cpus
Reset any i2c devices that may have been interrupted during a system reset.
Normally this would be accomplished by clocking the line until SCL and SDA
are released and then sending a start condtiion (From an Atmel datasheet).
There is no direct access to the i2c pins so instead create start commands
through the i2c interface. Send a start command then delay for the SDA Hold
time, repeat this by disabling/enabling the bus a total of 9 times.
Signed-off-by: Eric Millbrandt <emillbrandt@dekaresearch.com>
Diffstat (limited to 'cpu/mpc85xx')
0 files changed, 0 insertions, 0 deletions