#define MT29F_SPARE_SIZE 0x40 // 64 B
#define MT29F_PAGE_SIZE (MT29F_DATA_SIZE + MT29F_SPARE_SIZE)
#define MT29F_PAGES_PER_BLOCK 64
+#define MT29F_BLOCK_SIZE (MT29F_DATA_SIZE * MT29F_PAGES_PER_BLOCK)
#define MT29F_NUM_BLOCKS 2048
#define MT29F_ECC_NWORDS (MT29F_DATA_SIZE / 256)
#define MT29F_REMAP_TAG_OFFSET 0x38