u-boot-brain/include/asm-generic/bitsperlong.h

#ifndef __ASM_GENERIC_BITS_PER_LONG
#define __ASM_GENERIC_BITS_PER_LONG

#ifndef BITS_PER_LONG_LONG
#define BITS_PER_LONG_LONG 64
#endif

#endif /* __ASM_GENERIC_BITS_PER_LONG */