In message 200706061503.02268.sbabic@denx.de you wrote:
I have also noted that CONFIG_SERIAL_MULTI is always on for the mpc8xx (set implicitely by include/common.h and not by the board config file), even if there was no full support to have multiple serial interfaces. I think this gave us the nice feature to have in a easy way one SMC and one SCC and to switch between them (but not two SMCs or multiple SCCs), but now with full support for multiple interfaces I think this behavior is wrong and I removed it (it breaks all mpc8xx boards requiring to configure the default console). Multiple interfaces must be enabled setting explicitely CONFIG_SERIAL_MULTI in their config file. And at the moment, there is no board where more that one CONFIG_8xx_CONS_XXX is set.
You probably have broken the lwmon board, where a second serial port may be used for a modem remote control interface.
Best regards,
Wolfgang Denk