Symbol: FHC_BOARD_SPAN
usr/src/uts/sun4u/sunfire/io/sysctrl_dr.c
1949
(FHC_BOARD_SPAN*2*bd_idx);
usr/src/uts/sun4u/sunfire/sys/fhc.h
232
#define FHC_BOARD_BASE(cpuid) (FHC_BOARD_0 + (cpuid) * FHC_BOARD_SPAN)