PDC_STABLE
retval = mem_pdc_call(PDC_STABLE, PDC_STABLE_READ, staddr,
retval = mem_pdc_call(PDC_STABLE, PDC_STABLE_WRITE, staddr,
retval = mem_pdc_call(PDC_STABLE, PDC_STABLE_RETURN_SIZE, __pa(pdc_result));
retval = mem_pdc_call(PDC_STABLE, PDC_STABLE_VERIFY_CONTENTS);
retval = mem_pdc_call(PDC_STABLE, PDC_STABLE_INITIALIZE);