diff --git a/drivers/ide/ppc/pmac.c b/drivers/ide/ppc/pmac.c
index 9e86406bf44b7c6ebfc700cdbc16dc358dd50bc0..e0859385732e53e81dbf70cb366bbf24cd178228 100644
--- a/drivers/ide/ppc/pmac.c
+++ b/drivers/ide/ppc/pmac.c
@@ -1588,6 +1588,8 @@ pmac_ide_dma_check(ide_drive_t *drive)
 	if (ide_tune_dma(drive))
 		return 0;
 
+	ide_set_max_pio(drive);
+
 	return -1;
 }