Index: stand/efi/loader/efiserialio.c
===================================================================
--- stand/efi/loader/efiserialio.c
+++ stand/efi/loader/efiserialio.c
@@ -261,11 +261,11 @@
 		if (comc_port == NULL)
 			return;
 	}
-	comc_port->baudrate = COMSPEED;
+	comc_port->baudrate = 0;
 	comc_port->ioaddr = 0;			/* default port */
-	comc_port->databits = 8;		/* 8,n,1 */
-	comc_port->parity = NoParity;		/* 8,n,1 */
-	comc_port->stopbits = OneStopBit;	/* 8,n,1 */
+	comc_port->databits = 0;		/* default value */
+	comc_port->parity = DefaultParity;		/* default value 0 */
+	comc_port->stopbits = DefaultStopBits;	/* default value 0 */
 	comc_port->ignore_cd = 1;		/* ignore cd */
 	comc_port->rtsdtr_off = 0;		/* rts-dtr is on */
 	comc_port->sio = NULL;