It looks like in the last wave of changes, a patch got undone:

wing % cvs diff -r1.35 board.c Index: board.c =================================================================== RCS file: /cvsroot/u-boot/u-boot/lib_ppc/board.c,v retrieving revision 1.35 retrieving revision 1.36 diff -r1.35 -r1.36 877c877 < #if CONFIG_SERIAL_SOFTWARE_FIFO ---

#ifdef CONFIG_SERIAL_SOFTWARE_FIFO

The "#if CONFIG_SERIAL_SOFTWARE_FIFO" is the right version, if one assumes the documentation is correct that setting CONFIG_SERIAL_SOFTWARE_FIFO=0 causes the serial port to become insensitive to CTS.

Perhaps it would be even better to change it to:

#if defined(CONFIG_SERIAL_SOFTWARE_FIFO) && CONFIG_SOFTWARE_FIFO>0 ... #endif