SC27XX_EFUSE_BLOCK_WIDTH
u32 buf, blk_index = offset / SC27XX_EFUSE_BLOCK_WIDTH;
u32 blk_offset = (offset % SC27XX_EFUSE_BLOCK_WIDTH) * BITS_PER_BYTE;
bytes > SC27XX_EFUSE_BLOCK_WIDTH)
econfig.size = SC27XX_EFUSE_BLOCK_MAX * SC27XX_EFUSE_BLOCK_WIDTH;