REV_MASK           27 arch/mips/lantiq/falcon/prom.c #define REV_MASK	0xF0000000
REV_MASK           39 arch/mips/lantiq/xway/prom.c #define REV_MASK	0xF0000000
REV_MASK           94 drivers/net/ethernet/broadcom/bcmsysport.h #define  REV_MASK			0xffff