BP_BCH_FLASH0LAYOUT0_NBLOCKS
#define BM_BCH_FLASH0LAYOUT0_NBLOCKS (0xff << BP_BCH_FLASH0LAYOUT0_NBLOCKS)
(((v) << BP_BCH_FLASH0LAYOUT0_NBLOCKS) & BM_BCH_FLASH0LAYOUT0_NBLOCKS)