diff --git a/drivers/net/rionet.c b/drivers/net/rionet.c
index 86ac38c96bcf..3bb131137033 100644
--- a/drivers/net/rionet.c
+++ b/drivers/net/rionet.c
@@ -80,13 +80,13 @@ static int rionet_capable = 1;
  */
 static struct rio_dev **rionet_active;
 
-#define is_rionet_capable(pef, src_ops, dst_ops)		\
-			((pef & RIO_PEF_INB_MBOX) &&		\
-			 (pef & RIO_PEF_INB_DOORBELL) &&	\
+#define is_rionet_capable(src_ops, dst_ops)			\
+			((src_ops & RIO_SRC_OPS_DATA_MSG) &&	\
+			 (dst_ops & RIO_DST_OPS_DATA_MSG) &&	\
 			 (src_ops & RIO_SRC_OPS_DOORBELL) &&	\
 			 (dst_ops & RIO_DST_OPS_DOORBELL))
 #define dev_rionet_capable(dev) \
-	is_rionet_capable(dev->pef, dev->src_ops, dev->dst_ops)
+	is_rionet_capable(dev->src_ops, dev->dst_ops)
 
 #define RIONET_MAC_MATCH(x)	(*(u32 *)x == 0x00010001)
 #define RIONET_GET_DESTID(x)	(*(u16 *)(x + 4))
@@ -282,7 +282,6 @@ static int rionet_open(struct net_device *ndev)
 {
 	int i, rc = 0;
 	struct rionet_peer *peer, *tmp;
-	u32 pwdcsr;
 	struct rionet_private *rnet = netdev_priv(ndev);
 
 	if (netif_msg_ifup(rnet))
@@ -332,13 +331,8 @@ static int rionet_open(struct net_device *ndev)
 			continue;
 		}
 
-		/*
-		 * If device has initialized inbound doorbells,
-		 * send a join message
-		 */
-		rio_read_config_32(peer->rdev, RIO_WRITE_PORT_CSR, &pwdcsr);
-		if (pwdcsr & RIO_DOORBELL_AVAIL)
-			rio_send_doorbell(peer->rdev, RIONET_DOORBELL_JOIN);
+		/* Send a join message */
+		rio_send_doorbell(peer->rdev, RIONET_DOORBELL_JOIN);
 	}
 
       out:
@@ -492,7 +486,7 @@ static int rionet_setup_netdev(struct rio_mport *mport, struct net_device *ndev)
 static int rionet_probe(struct rio_dev *rdev, const struct rio_device_id *id)
 {
 	int rc = -ENODEV;
-	u32 lpef, lsrc_ops, ldst_ops;
+	u32 lsrc_ops, ldst_ops;
 	struct rionet_peer *peer;
 	struct net_device *ndev = NULL;
 
@@ -515,12 +509,11 @@ static int rionet_probe(struct rio_dev *rdev, const struct rio_device_id *id)
 	 * on later probes
 	 */
 	if (!rionet_check) {
-		rio_local_read_config_32(rdev->net->hport, RIO_PEF_CAR, &lpef);
 		rio_local_read_config_32(rdev->net->hport, RIO_SRC_OPS_CAR,
 					 &lsrc_ops);
 		rio_local_read_config_32(rdev->net->hport, RIO_DST_OPS_CAR,
 					 &ldst_ops);
-		if (!is_rionet_capable(lpef, lsrc_ops, ldst_ops)) {
+		if (!is_rionet_capable(lsrc_ops, ldst_ops)) {
 			printk(KERN_ERR
 			       "%s: local device is not network capable\n",
 			       DRV_NAME);
diff --git a/drivers/rapidio/rio-scan.c b/drivers/rapidio/rio-scan.c
index ee893581d4b7..ebe77dd87daf 100644
--- a/drivers/rapidio/rio-scan.c
+++ b/drivers/rapidio/rio-scan.c
@@ -505,8 +505,7 @@ static struct rio_dev __devinit *rio_setup_device(struct rio_net *net,
 	rdev->dev.dma_mask = &rdev->dma_mask;
 	rdev->dev.coherent_dma_mask = DMA_BIT_MASK(32);
 
-	if ((rdev->pef & RIO_PEF_INB_DOORBELL) &&
-	    (rdev->dst_ops & RIO_DST_OPS_DOORBELL))
+	if (rdev->dst_ops & RIO_DST_OPS_DOORBELL)
 		rio_init_dbell_res(&rdev->riores[RIO_DOORBELL_RESOURCE],
 				   0, 0xffff);
 
diff --git a/include/linux/rio_regs.h b/include/linux/rio_regs.h
index 9026b30238f3..218168a2b5e9 100644
--- a/include/linux/rio_regs.h
+++ b/include/linux/rio_regs.h
@@ -36,12 +36,12 @@
 #define  RIO_PEF_PROCESSOR		0x20000000	/* [I] Processor */
 #define  RIO_PEF_SWITCH			0x10000000	/* [I] Switch */
 #define  RIO_PEF_MULTIPORT		0x08000000	/* [VI, 2.1] Multiport */
-#define  RIO_PEF_INB_MBOX		0x00f00000	/* [II] Mailboxes */
-#define  RIO_PEF_INB_MBOX0		0x00800000	/* [II] Mailbox 0 */
-#define  RIO_PEF_INB_MBOX1		0x00400000	/* [II] Mailbox 1 */
-#define  RIO_PEF_INB_MBOX2		0x00200000	/* [II] Mailbox 2 */
-#define  RIO_PEF_INB_MBOX3		0x00100000	/* [II] Mailbox 3 */
-#define  RIO_PEF_INB_DOORBELL		0x00080000	/* [II] Doorbells */
+#define  RIO_PEF_INB_MBOX		0x00f00000	/* [II, <= 1.2] Mailboxes */
+#define  RIO_PEF_INB_MBOX0		0x00800000	/* [II, <= 1.2] Mailbox 0 */
+#define  RIO_PEF_INB_MBOX1		0x00400000	/* [II, <= 1.2] Mailbox 1 */
+#define  RIO_PEF_INB_MBOX2		0x00200000	/* [II, <= 1.2] Mailbox 2 */
+#define  RIO_PEF_INB_MBOX3		0x00100000	/* [II, <= 1.2] Mailbox 3 */
+#define  RIO_PEF_INB_DOORBELL		0x00080000	/* [II, <= 1.2] Doorbells */
 #define  RIO_PEF_EXT_RT			0x00000200	/* [III, 1.3] Extended route table support */
 #define  RIO_PEF_STD_RT			0x00000100	/* [III, 1.3] Standard route table support */
 #define  RIO_PEF_CTLS			0x00000010	/* [III] CTLS */
@@ -102,7 +102,7 @@
 #define	RIO_SWITCH_RT_LIMIT	0x34	/* [III, 1.3] Switch Route Table Destination ID Limit CAR */
 #define	 RIO_RT_MAX_DESTID		0x0000ffff
 
-#define RIO_MBOX_CSR		0x40	/* [II] Mailbox CSR */
+#define RIO_MBOX_CSR		0x40	/* [II, <= 1.2] Mailbox CSR */
 #define  RIO_MBOX0_AVAIL		0x80000000	/* [II] Mbox 0 avail */
 #define  RIO_MBOX0_FULL			0x40000000	/* [II] Mbox 0 full */
 #define  RIO_MBOX0_EMPTY		0x20000000	/* [II] Mbox 0 empty */
@@ -128,8 +128,8 @@
 #define  RIO_MBOX3_FAIL			0x00000008	/* [II] Mbox 3 fail */
 #define  RIO_MBOX3_ERROR		0x00000004	/* [II] Mbox 3 error */
 
-#define RIO_WRITE_PORT_CSR	0x44	/* [I] Write Port CSR */
-#define RIO_DOORBELL_CSR	0x44	/* [II] Doorbell CSR */
+#define RIO_WRITE_PORT_CSR	0x44	/* [I, <= 1.2] Write Port CSR */
+#define RIO_DOORBELL_CSR	0x44	/* [II, <= 1.2] Doorbell CSR */
 #define  RIO_DOORBELL_AVAIL		0x80000000	/* [II] Doorbell avail */
 #define  RIO_DOORBELL_FULL		0x40000000	/* [II] Doorbell full */
 #define  RIO_DOORBELL_EMPTY		0x20000000	/* [II] Doorbell empty */