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54 commits

Author SHA1 Message Date
Heiko Schocher
a21ca95f8b mgsuvd: fix compiler warning when using soft_i2c driver 
Signed-off-by: Heiko Schocher <hs@denx.de>
 2008-10-18 21:54:04 +02:00
Jean-Christophe PLAGNIOL-VILLARD
6d0f6bcf33 rename CFG_ macros to CONFIG_SYS 
Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
 2008-10-18 21:54:03 +02:00
Heiko Schocher
8f64da7f83 mgcoge, mgsuvd: added support for the IVM EEprom. 
The EEprom contains some Manufacturerinformation,
which are read from u-boot at boot time, and saved
in same hush shell variables.

Signed-off-by: Heiko Schocher <hs@denx.de>
 2008-10-18 21:54:02 +02:00
Heiko Schocher
c24853644d mgcoge, mgsuvd: add board specific I2C deblocking mechanism. 
As documented in doc/I2C_Edge_Conditions, adding a
board specific deblocking mechanism via CFG_I2C_INIT_BOARD
for the mgcoge and mgsuvd board.

This code was originally written by Keymile in association
with Anatech and Atmel in 1998. The Code toggels the SCL
until the SCA line goes to HIGH (max. 16 times).
And after this, a start condition is sent.

This is another approach to deblock the I2C Bus. The
soft I2C driver actually sends 9 clocks with SDA High,
and then a stop at the end, to deblock the I2C Bus.

Maybe we should use the approach from Keymile as
the new standard?

Signed-off-by: Heiko Schocher <hs@denx.de>
 2008-10-18 21:54:02 +02:00