[U-Boot-Users] [DNX#2006083042000018] [PATCH 1/2] Add support for multiple I2C buses

[DENX Support System]

Hello list,

inside the automatic U-Boot patch tracking system a new ticket
[DNX#2006083042000018] was created:

<snip>
> 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 does not include
> support for 10-bit addresses.  That's too profound a change to include
> here...  Hopefully this addresses concerns with my previous attempts.
> 
> Overview:
> 
> 1. Include new 'i2c' command (based on USB implementation) using
> CONFIG_I2C_CMD_TREE.  Note - I opted to not use the last remaining CMD
> bit in 'include/cmd_confdefs.h'.
> 
> 2. Allow multiple buses by defining CONFIG_I2C_MULTI_BUS.  Note that
> this is only available under the new 'i2c' command mentioned in bullet
> 1.  
> 
> 3. Allow by-passing of devices when probing a bus by defining
> CFG_I2C_MULTI_NOPROBES.  This is an array of bus-device pairs that will
> be skipped by the 'i2c probe' command. 
> 
> 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 bus (conditionally compiled with
> CONFIG_I2C_MULTI_BUS).  Added a list of devices to ignore when probing
> the buses when more than one bus is present.  Updated README.
> 
> regards,
> Ben
</snip>

Your U-Boot support team