HSNAND_CS_OFFS
val = readb(ebu_host->cs[cs_num].chipaddr + HSNAND_CS_OFFS);
ebu_nand_writeb(chip, HSNAND_CS_OFFS, buf[i]);
ebu_nand_writeb(chip, HSNAND_CLE_OFFS | HSNAND_CS_OFFS,
HSNAND_ALE_OFFS | HSNAND_CS_OFFS,