Perhaps this is an even better patch:

=================================================================== RCS file: /cvsroot/u-boot/u-boot/README,v retrieving revision 1.79 diff -p -u -r1.79 README --- README 14 Mar 2004 14:09:05 -0000 1.79 +++ README 16 Mar 2004 04:12:44 -0000 @@ -441,8 +441,8 @@ The following options need to be configu (RTS/CTS) and UART's built-in FIFO. Set the number of bytes the interrupt driven input buffer should have.

- Set to 0 to disable this feature (this is the default). - This will also disable hardware handshake. + Leave undefined to disable this feature, including + disable the buffer and hardware handshake.

- Console UART Number: CONFIG_UART1_CONSOLE

Stephen Williams wrote:

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