HelenOS sources

CCSELR_LEVEL_SHIFT  221 boot/arch/arm32/include/arch/cp15.h 	CCSELR_LEVEL_SHIFT = 1,
CCSELR_LEVEL_SHIFT  221 kernel/arch/arm32/include/arch/cp15.h 	CCSELR_LEVEL_SHIFT = 1,
CCSELR_LEVEL_SHIFT  221 uspace/lib/c/arch/arm32/include/libarch/cp15.h 	CCSELR_LEVEL_SHIFT = 1,
HelenOS homepage, sources at GitHub