omap_des_read
val = omap_des_read(dd, offset);
omap_des_read(dd, DES_REG_IV(dd, i));
status = omap_des_read(dd, DES_REG_IRQ_STATUS(dd));
*dst = omap_des_read(dd, DES_REG_DATA_N(dd, i));
reg = omap_des_read(dd, DES_REG_REV(dd));