PPC_RXD4          378 arch/arm/mach-sa1100/collie.c 	PSDR = PPC_RXD1 | PPC_RXD2 | PPC_RXD3 | PPC_RXD4;
PPC_RXD4          185 arch/arm/mach-sa1100/generic.c 	PPDR &= ~PPC_RXD4;
PPC_RXD4          187 arch/arm/mach-sa1100/generic.c 	PSDR |= PPC_RXD4;