MASK_31
saa7146_write(dev,MC2, MASK_31);
*hps_ctrl &= ~(MASK_30 | MASK_31 | MASK_28);
hps_ctrl &= ~( MASK_31 | MASK_30 | MASK_28 );
saa7146_write(dev, MC2, MASK_31|MASK_15);
saa7146_write(dev, MC1, MASK_31);