extern int l2_cache_enable (int l2control);
extern void *nvram_read (void *dest, const short src, size_t count);
extern void nvram_write (short dest, const void *src, size_t count);
extern int l2_cache_enable (int l2control);
extern void *nvram_read (void *dest, const short src, size_t count);
extern void nvram_write (short dest, const void *src, size_t count);