pos2 = mca_device_read_pos(mca_dev, 2);
/* enable device */
pos2 |= NCR_Q720_POS2_BOARD_ENABLE | NCR_Q720_POS2_INTERRUPT_ENABLE;
pos2 = mca_device_read_pos(mca_dev, 2);
/* enable device */
pos2 |= NCR_Q720_POS2_BOARD_ENABLE | NCR_Q720_POS2_INTERRUPT_ENABLE;