852962d3c5
share their IRQ lines with the i8042. Any IRQ activity (typically during attach) on the NS16550 used to connect the keyboard when actually the PS/2 keyboard is selected in OFW causes interaction with the OBP i8042 driver resulting in a hang (and vice versa). As RS232 keyboards and mice obviously aren't meant to be used in parallel with PS/2 ones on these boards don't attach to these NS16550 in case the RS232 keyboard isn't selected in order to prevent such hangs. Ok'ed by: marcel