CPUID_EXT_MMFR0    18 arch/arm/include/asm/cputype.h #define CPUID_EXT_MMFR0	0x50
CPUID_EXT_MMFR0    33 arch/arm/include/asm/cputype.h #define CPUID_EXT_MMFR0	"c1, 4"