In message 20060530225053.7575ab34@localhost.localdomain you wrote:
1: For Adder ports, the Makefile shall be amended to optionally add CONFIG_USB_TTY to config.h as CONFIG_MPC852T is added by make AdderII_config. This will provisionally imply an appendation of USB to the config name. Hence three new values should be added to Makefile AdderUSB_config, Adder87xUSB_config and AdderIIUSB_config. - Do all these boards have USB facility ?
Please hold on for a minute. The Makefile's purpose is to define dependencies. It is actually not the place to put code and configuration trickery there. Yes, I know, this is already in use with other boards, but I would like to ask you to use such features only when absolutely necessary.
If you just define a new make target name this is simple and readable (just a single word in the Makefile), and can be evaluated in the board config file instead.
Best regards,
Wolfgang Denk