CHIP_REV_VER_MASK   35 arch/mips/include/asm/mach-ralink/mt7620.h #define CHIP_REV_VER_MASK		0xf
CHIP_REV_VER_MASK   23 arch/mips/include/asm/mach-ralink/mt7621.h #define CHIP_REV_VER_MASK		0xf