NB_5000_MAX_MEM_CONTROLLERS
int nb_number_memory_controllers = NB_5000_MAX_MEM_CONTROLLERS;
rank_select_t nb_ranks[NB_5000_MAX_MEM_CONTROLLERS][NB_MAX_MEM_RANK_SELECT];
uint8_t spare_rank[NB_5000_MAX_MEM_CONTROLLERS];
extern rank_select_t nb_ranks[NB_5000_MAX_MEM_CONTROLLERS]
extern uint8_t spare_rank[NB_5000_MAX_MEM_CONTROLLERS];