REV_CHIPID_SHIFT 335 arch/mips/bcm63xx/cpu.c bcm63xx_cpu_id = (tmp & REV_CHIPID_MASK) >> REV_CHIPID_SHIFT; REV_CHIPID_SHIFT 12 arch/mips/include/asm/mach-bcm63xx/bcm63xx_regs.h #define REV_CHIPID_MASK (0xffff << REV_CHIPID_SHIFT)