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author | Ben Warren <bwarren@qstreams.com> | 2006-09-07 16:50:54 -0400 |
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committer | Kim Phillips <kim.phillips@freescale.com> | 2006-11-03 19:42:19 -0600 |
commit | bb99ad6d8257bf828f150d40f507b30d80a4a7ae (patch) | |
tree | b097750e9e63f49186717a1eb4fcd078f65ae381 /lib_m68k/m68k_linux.c | |
parent | bed85caf872714ebf53013967a695c9d63acfc68 (diff) | |
download | u-boot-imx-bb99ad6d8257bf828f150d40f507b30d80a4a7ae.zip u-boot-imx-bb99ad6d8257bf828f150d40f507b30d80a4a7ae.tar.gz u-boot-imx-bb99ad6d8257bf828f150d40f507b30d80a4a7ae.tar.bz2 |
Add support for multiple I2C buses
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 <bwarren@qstreams.com>
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
Diffstat (limited to 'lib_m68k/m68k_linux.c')
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