IXP4XX_OF_REG_SIZE
num_regs = of_property_count_elems_of_size(np, "reg", IXP4XX_OF_REG_SIZE);
i * IXP4XX_OF_REG_SIZE, &csindex);
i * IXP4XX_OF_REG_SIZE + 1, &rbase);
i * IXP4XX_OF_REG_SIZE + 2, &rsize);