1 files changed, 303 insertions, 243 deletions

diff --git a/drivers/net/ethernet/ti/cpsw.c b/drivers/net/ethernet/ti/cpsw.c
index 79974e31187..b988d16cd34 100644
--- a/drivers/net/ethernet/ti/cpsw.c
+++ b/drivers/net/ethernet/ti/cpsw.c
@@ -143,13 +143,13 @@ do {								\
 		u32 i;		\
 		for (i = 0; i < priv->num_irqs; i++) \
 			enable_irq(priv->irqs_table[i]); \
-	} while (0);
+	} while (0)
 #define cpsw_disable_irq(priv)	\
 	do {			\
 		u32 i;		\
 		for (i = 0; i < priv->num_irqs; i++) \
 			disable_irq_nosync(priv->irqs_table[i]); \
-	} while (0);
+	} while (0)
 
 #define cpsw_slave_index(priv)				\
 		((priv->data.dual_emac) ? priv->emac_port :	\
@@ -248,20 +248,31 @@ struct cpsw_ss_regs {
 #define TS_131              (1<<11) /* Time Sync Dest IP Addr 131 enable */
 #define TS_130              (1<<10) /* Time Sync Dest IP Addr 130 enable */
 #define TS_129              (1<<9)  /* Time Sync Dest IP Addr 129 enable */
-#define TS_BIT8             (1<<8)  /* ts_ttl_nonzero? */
+#define TS_TTL_NONZERO      (1<<8)  /* Time Sync Time To Live Non-zero enable */
+#define TS_ANNEX_F_EN       (1<<6)  /* Time Sync Annex F enable */
 #define TS_ANNEX_D_EN       (1<<4)  /* Time Sync Annex D enable */
 #define TS_LTYPE2_EN        (1<<3)  /* Time Sync LTYPE 2 enable */
 #define TS_LTYPE1_EN        (1<<2)  /* Time Sync LTYPE 1 enable */
 #define TS_TX_EN            (1<<1)  /* Time Sync Transmit Enable */
 #define TS_RX_EN            (1<<0)  /* Time Sync Receive Enable */
 
-#define CTRL_TS_BITS \
-	(TS_320 | TS_319 | TS_132 | TS_131 | TS_130 | TS_129 | TS_BIT8 | \
-	 TS_ANNEX_D_EN | TS_LTYPE1_EN)
+#define CTRL_V2_TS_BITS \
+	(TS_320 | TS_319 | TS_132 | TS_131 | TS_130 | TS_129 |\
+	 TS_TTL_NONZERO  | TS_ANNEX_D_EN | TS_LTYPE1_EN)
+
+#define CTRL_V2_ALL_TS_MASK (CTRL_V2_TS_BITS | TS_TX_EN | TS_RX_EN)
+#define CTRL_V2_TX_TS_BITS  (CTRL_V2_TS_BITS | TS_TX_EN)
+#define CTRL_V2_RX_TS_BITS  (CTRL_V2_TS_BITS | TS_RX_EN)
+
+
+#define CTRL_V3_TS_BITS \
+	(TS_320 | TS_319 | TS_132 | TS_131 | TS_130 | TS_129 |\
+	 TS_TTL_NONZERO | TS_ANNEX_F_EN | TS_ANNEX_D_EN |\
+	 TS_LTYPE1_EN)
 
-#define CTRL_ALL_TS_MASK (CTRL_TS_BITS | TS_TX_EN | TS_RX_EN)
-#define CTRL_TX_TS_BITS  (CTRL_TS_BITS | TS_TX_EN)
-#define CTRL_RX_TS_BITS  (CTRL_TS_BITS | TS_RX_EN)
+#define CTRL_V3_ALL_TS_MASK (CTRL_V3_TS_BITS | TS_TX_EN | TS_RX_EN)
+#define CTRL_V3_TX_TS_BITS  (CTRL_V3_TS_BITS | TS_TX_EN)
+#define CTRL_V3_RX_TS_BITS  (CTRL_V3_TS_BITS | TS_RX_EN)
 
 /* Bit definitions for the CPSW2_TS_SEQ_MTYPE register */
 #define TS_SEQ_ID_OFFSET_SHIFT   (16)    /* Time Sync Sequence ID Offset */
@@ -367,8 +378,6 @@ struct cpsw_priv {
 	spinlock_t			lock;
 	struct platform_device		*pdev;
 	struct net_device		*ndev;
-	struct resource			*cpsw_res;
-	struct resource			*cpsw_wr_res;
 	struct napi_struct		napi;
 	struct device			*dev;
 	struct cpsw_platform_data	data;
@@ -380,7 +389,6 @@ struct cpsw_priv {
 	u32				version;
 	u32				coal_intvl;
 	u32				bus_freq_mhz;
-	struct net_device_stats		stats;
 	int				rx_packet_max;
 	int				host_port;
 	struct clk			*clk;
@@ -543,14 +551,93 @@ static inline int cpsw_get_slave_port(struct cpsw_priv *priv, u32 slave_num)
 		return slave_num;
 }
 
+static void cpsw_set_promiscious(struct net_device *ndev, bool enable)
+{
+	struct cpsw_priv *priv = netdev_priv(ndev);
+	struct cpsw_ale *ale = priv->ale;
+	int i;
+
+	if (priv->data.dual_emac) {
+		bool flag = false;
+
+		/* Enabling promiscuous mode for one interface will be
+		 * common for both the interface as the interface shares
+		 * the same hardware resource.
+		 */
+		for (i = 0; i < priv->data.slaves; i++)
+			if (priv->slaves[i].ndev->flags & IFF_PROMISC)
+				flag = true;
+
+		if (!enable && flag) {
+			enable = true;
+			dev_err(&ndev->dev, "promiscuity not disabled as the other interface is still in promiscuity mode\n");
+		}
+
+		if (enable) {
+			/* Enable Bypass */
+			cpsw_ale_control_set(ale, 0, ALE_BYPASS, 1);
+
+			dev_dbg(&ndev->dev, "promiscuity enabled\n");
+		} else {
+			/* Disable Bypass */
+			cpsw_ale_control_set(ale, 0, ALE_BYPASS, 0);
+			dev_dbg(&ndev->dev, "promiscuity disabled\n");
+		}
+	} else {
+		if (enable) {
+			unsigned long timeout = jiffies + HZ;
+
+			/* Disable Learn for all ports */
+			for (i = 0; i < priv->data.slaves; i++) {
+				cpsw_ale_control_set(ale, i,
+						     ALE_PORT_NOLEARN, 1);
+				cpsw_ale_control_set(ale, i,
+						     ALE_PORT_NO_SA_UPDATE, 1);
+			}
+
+			/* Clear All Untouched entries */
+			cpsw_ale_control_set(ale, 0, ALE_AGEOUT, 1);
+			do {
+				cpu_relax();
+				if (cpsw_ale_control_get(ale, 0, ALE_AGEOUT))
+					break;
+			} while (time_after(timeout, jiffies));
+			cpsw_ale_control_set(ale, 0, ALE_AGEOUT, 1);
+
+			/* Clear all mcast from ALE */
+			cpsw_ale_flush_multicast(ale, ALE_ALL_PORTS <<
+						 priv->host_port);
+
+			/* Flood All Unicast Packets to Host port */
+			cpsw_ale_control_set(ale, 0, ALE_P0_UNI_FLOOD, 1);
+			dev_dbg(&ndev->dev, "promiscuity enabled\n");
+		} else {
+			/* Flood All Unicast Packets to Host port */
+			cpsw_ale_control_set(ale, 0, ALE_P0_UNI_FLOOD, 0);
+
+			/* Enable Learn for all ports */
+			for (i = 0; i < priv->data.slaves; i++) {
+				cpsw_ale_control_set(ale, i,
+						     ALE_PORT_NOLEARN, 0);
+				cpsw_ale_control_set(ale, i,
+						     ALE_PORT_NO_SA_UPDATE, 0);
+			}
+			dev_dbg(&ndev->dev, "promiscuity disabled\n");
+		}
+	}
+}
+
 static void cpsw_ndo_set_rx_mode(struct net_device *ndev)
 {
 	struct cpsw_priv *priv = netdev_priv(ndev);
 
 	if (ndev->flags & IFF_PROMISC) {
 		/* Enable promiscuous mode */
-		dev_err(priv->dev, "Ignoring Promiscuous mode\n");
+		cpsw_set_promiscious(ndev, true);
 		return;
+	} else {
+		/* Disable promiscuous mode */
+		cpsw_set_promiscious(ndev, false);
 	}
 
 	/* Clear all mcast from ALE */
@@ -584,7 +671,7 @@ static void cpsw_intr_disable(struct cpsw_priv *priv)
 	return;
 }
 
-void cpsw_tx_handler(void *token, int len, int status)
+static void cpsw_tx_handler(void *token, int len, int status)
 {
 	struct sk_buff		*skb = token;
 	struct net_device	*ndev = skb->dev;
@@ -596,12 +683,12 @@ void cpsw_tx_handler(void *token, int len, int status)
 	if (unlikely(netif_queue_stopped(ndev)))
 		netif_wake_queue(ndev);
 	cpts_tx_timestamp(priv->cpts, skb);
-	priv->stats.tx_packets++;
-	priv->stats.tx_bytes += len;
+	ndev->stats.tx_packets++;
+	ndev->stats.tx_bytes += len;
 	dev_kfree_skb_any(skb);
 }
 
-void cpsw_rx_handler(void *token, int len, int status)
+static void cpsw_rx_handler(void *token, int len, int status)
 {
 	struct sk_buff		*skb = token;
 	struct sk_buff		*new_skb;
@@ -611,7 +698,7 @@ void cpsw_rx_handler(void *token, int len, int status)
 
 	cpsw_dual_emac_src_port_detect(status, priv, ndev, skb);
 
-	if (unlikely(status < 0)) {
+	if (unlikely(status < 0) || unlikely(!netif_running(ndev))) {
 		/* the interface is going down, skbs are purged */
 		dev_kfree_skb_any(skb);
 		return;
@@ -623,10 +710,10 @@ void cpsw_rx_handler(void *token, int len, int status)
 		cpts_rx_timestamp(priv->cpts, skb);
 		skb->protocol = eth_type_trans(skb, ndev);
 		netif_receive_skb(skb);
-		priv->stats.rx_bytes += len;
-		priv->stats.rx_packets++;
+		ndev->stats.rx_bytes += len;
+		ndev->stats.rx_packets++;
 	} else {
-		priv->stats.rx_dropped++;
+		ndev->stats.rx_dropped++;
 		new_skb = skb;
 	}
 
@@ -639,13 +726,6 @@ void cpsw_rx_handler(void *token, int len, int status)
 static irqreturn_t cpsw_interrupt(int irq, void *dev_id)
 {
 	struct cpsw_priv *priv = dev_id;
-	u32 rx, tx, rx_thresh;
-
-	rx_thresh = __raw_readl(&priv->wr_regs->rx_thresh_stat);
-	rx = __raw_readl(&priv->wr_regs->rx_stat);
-	tx = __raw_readl(&priv->wr_regs->tx_stat);
-	if (!rx_thresh && !rx && !tx)
-		return IRQ_NONE;
 
 	cpsw_intr_disable(priv);
 	if (priv->irq_enabled == true) {
@@ -749,6 +829,8 @@ static void _cpsw_adjust_link(struct cpsw_slave *slave,
 		/* set speed_in input in case RMII mode is used in 100Mbps */
 		if (phy->speed == 100)
 			mac_control |= BIT(15);
+		else if (phy->speed == 10)
+			mac_control |= BIT(18); /* In Band mode */
 
 		*link = true;
 	} else {
@@ -976,14 +1058,19 @@ static inline void cpsw_add_dual_emac_def_ale_entries(
 		priv->host_port, ALE_VLAN, slave->port_vlan);
 }
 
-static void cpsw_slave_open(struct cpsw_slave *slave, struct cpsw_priv *priv)
+static void soft_reset_slave(struct cpsw_slave *slave)
 {
 	char name[32];
-	u32 slave_port;
-
-	sprintf(name, "slave-%d", slave->slave_num);
 
+	snprintf(name, sizeof(name), "slave-%d", slave->slave_num);
 	soft_reset(name, &slave->sliver->soft_reset);
+}
+
+static void cpsw_slave_open(struct cpsw_slave *slave, struct cpsw_priv *priv)
+{
+	u32 slave_port;
+
+	soft_reset_slave(slave);
 
 	/* setup priority mapping */
 	__raw_writel(RX_PRIORITY_MAPPING, &slave->sliver->rx_pri_map);
@@ -1023,6 +1110,10 @@ static void cpsw_slave_open(struct cpsw_slave *slave, struct cpsw_priv *priv)
 		dev_info(priv->dev, "phy found : id is : 0x%x\n",
 			 slave->phy->phy_id);
 		phy_start(slave->phy);
+
+		/* Configure GMII_SEL register */
+		cpsw_phy_sel(&priv->pdev->dev, slave->phy->interface,
+			     slave->slave_num);
 	}
 }
 
@@ -1083,11 +1174,17 @@ static void cpsw_init_host_port(struct cpsw_priv *priv)
 
 static void cpsw_slave_stop(struct cpsw_slave *slave, struct cpsw_priv *priv)
 {
+	u32 slave_port;
+
+	slave_port = cpsw_get_slave_port(priv, slave->slave_num);
+
 	if (!slave->phy)
 		return;
 	phy_stop(slave->phy);
 	phy_disconnect(slave->phy);
 	slave->phy = NULL;
+	cpsw_ale_control_set(priv->ale, slave_port,
+			     ALE_PORT_STATE, ALE_PORT_STATE_DISABLE);
 }
 
 static int cpsw_ndo_open(struct net_device *ndev)
@@ -1117,6 +1214,10 @@ static int cpsw_ndo_open(struct net_device *ndev)
 	/* Add default VLAN */
 	if (!priv->data.dual_emac)
 		cpsw_add_default_vlan(priv);
+	else
+		cpsw_ale_add_vlan(priv->ale, priv->data.default_vlan,
+				  ALE_ALL_PORTS << priv->host_port,
+				  ALE_ALL_PORTS << priv->host_port, 0, 0);
 
 	if (!cpsw_common_res_usage_state(priv)) {
 		/* setup tx dma to fixed prio and zero offset */
@@ -1151,6 +1252,12 @@ static int cpsw_ndo_open(struct net_device *ndev)
 		 * receive descs
 		 */
 		cpsw_info(priv, ifup, "submitted %d rx descriptors\n", i);
+
+		if (cpts_register(&priv->pdev->dev, priv->cpts,
+				  priv->data.cpts_clock_mult,
+				  priv->data.cpts_clock_shift))
+			dev_err(priv->dev, "error registering cpts device\n");
+
 	}
 
 	/* Enable Interrupt pacing if configured */
@@ -1161,6 +1268,12 @@ static int cpsw_ndo_open(struct net_device *ndev)
 		cpsw_set_coalesce(ndev, &coal);
 	}
 
+	napi_enable(&priv->napi);
+	cpdma_ctlr_start(priv->dma);
+	cpsw_intr_enable(priv);
+	cpdma_ctlr_eoi(priv->dma, CPDMA_EOI_RX);
+	cpdma_ctlr_eoi(priv->dma, CPDMA_EOI_TX);
+
 	prim_cpsw = cpsw_get_slave_priv(priv, 0);
 	if (prim_cpsw->irq_enabled == false) {
 		if ((priv == prim_cpsw) || !netif_running(prim_cpsw->ndev)) {
@@ -1169,12 +1282,6 @@ static int cpsw_ndo_open(struct net_device *ndev)
 		}
 	}
 
-	cpdma_ctlr_start(priv->dma);
-	cpsw_intr_enable(priv);
-	napi_enable(&priv->napi);
-	cpdma_ctlr_eoi(priv->dma, CPDMA_EOI_RX);
-	cpdma_ctlr_eoi(priv->dma, CPDMA_EOI_TX);
-
 	if (priv->data.dual_emac)
 		priv->slaves[priv->emac_port].open_stat = true;
 	return 0;
@@ -1197,6 +1304,7 @@ static int cpsw_ndo_stop(struct net_device *ndev)
 	netif_carrier_off(priv->ndev);
 
 	if (cpsw_common_res_usage_state(priv) <= 1) {
+		cpts_unregister(priv->cpts);
 		cpsw_intr_disable(priv);
 		cpdma_ctlr_int_ctrl(priv->dma, false);
 		cpdma_ctlr_stop(priv->dma);
@@ -1219,7 +1327,7 @@ static netdev_tx_t cpsw_ndo_start_xmit(struct sk_buff *skb,
 
 	if (skb_padto(skb, CPSW_MIN_PACKET_SIZE)) {
 		cpsw_err(priv, tx_err, "packet pad failed\n");
-		priv->stats.tx_dropped++;
+		ndev->stats.tx_dropped++;
 		return NETDEV_TX_OK;
 	}
 
@@ -1243,34 +1351,11 @@ static netdev_tx_t cpsw_ndo_start_xmit(struct sk_buff *skb,
 
 	return NETDEV_TX_OK;
 fail:
-	priv->stats.tx_dropped++;
+	ndev->stats.tx_dropped++;
 	netif_stop_queue(ndev);
 	return NETDEV_TX_BUSY;
 }
 
-static void cpsw_ndo_change_rx_flags(struct net_device *ndev, int flags)
-{
-	/*
-	 * The switch cannot operate in promiscuous mode without substantial
-	 * headache.  For promiscuous mode to work, we would need to put the
-	 * ALE in bypass mode and route all traffic to the host port.
-	 * Subsequently, the host will need to operate as a "bridge", learn,
-	 * and flood as needed.  For now, we simply complain here and
-	 * do nothing about it :-)
-	 */
-	if ((flags & IFF_PROMISC) && (ndev->flags & IFF_PROMISC))
-		dev_err(&ndev->dev, "promiscuity ignored!\n");
-
-	/*
-	 * The switch cannot filter multicast traffic unless it is configured
-	 * in "VLAN Aware" mode.  Unfortunately, VLAN awareness requires a
-	 * whole bunch of additional logic that this driver does not implement
-	 * at present.
-	 */
-	if ((flags & IFF_ALLMULTI) && !(ndev->flags & IFF_ALLMULTI))
-		dev_err(&ndev->dev, "multicast traffic cannot be filtered!\n");
-}
-
 #ifdef CONFIG_TI_CPTS
 
 static void cpsw_hwtstamp_v1(struct cpsw_priv *priv)
@@ -1307,13 +1392,27 @@ static void cpsw_hwtstamp_v2(struct cpsw_priv *priv)
 		slave = &priv->slaves[priv->data.active_slave];
 
 	ctrl = slave_read(slave, CPSW2_CONTROL);
-	ctrl &= ~CTRL_ALL_TS_MASK;
+	switch (priv->version) {
+	case CPSW_VERSION_2:
+		ctrl &= ~CTRL_V2_ALL_TS_MASK;
 
-	if (priv->cpts->tx_enable)
-		ctrl |= CTRL_TX_TS_BITS;
+		if (priv->cpts->tx_enable)
+			ctrl |= CTRL_V2_TX_TS_BITS;
 
-	if (priv->cpts->rx_enable)
-		ctrl |= CTRL_RX_TS_BITS;
+		if (priv->cpts->rx_enable)
+			ctrl |= CTRL_V2_RX_TS_BITS;
+	break;
+	case CPSW_VERSION_3:
+	default:
+		ctrl &= ~CTRL_V3_ALL_TS_MASK;
+
+		if (priv->cpts->tx_enable)
+			ctrl |= CTRL_V3_TX_TS_BITS;
+
+		if (priv->cpts->rx_enable)
+			ctrl |= CTRL_V3_RX_TS_BITS;
+	break;
+	}
 
 	mtype = (30 << TS_SEQ_ID_OFFSET_SHIFT) | EVENT_MSG_BITS;
 
@@ -1322,12 +1421,17 @@ static void cpsw_hwtstamp_v2(struct cpsw_priv *priv)
 	__raw_writel(ETH_P_1588, &priv->regs->ts_ltype);
 }
 
-static int cpsw_hwtstamp_ioctl(struct net_device *dev, struct ifreq *ifr)
+static int cpsw_hwtstamp_set(struct net_device *dev, struct ifreq *ifr)
 {
 	struct cpsw_priv *priv = netdev_priv(dev);
 	struct cpts *cpts = priv->cpts;
 	struct hwtstamp_config cfg;
 
+	if (priv->version != CPSW_VERSION_1 &&
+	    priv->version != CPSW_VERSION_2 &&
+	    priv->version != CPSW_VERSION_3)
+		return -EOPNOTSUPP;
+
 	if (copy_from_user(&cfg, ifr->ifr_data, sizeof(cfg)))
 		return -EFAULT;
 
@@ -1335,16 +1439,8 @@ static int cpsw_hwtstamp_ioctl(struct net_device *dev, struct ifreq *ifr)
 	if (cfg.flags)
 		return -EINVAL;
 
-	switch (cfg.tx_type) {
-	case HWTSTAMP_TX_OFF:
-		cpts->tx_enable = 0;
-		break;
-	case HWTSTAMP_TX_ON:
-		cpts->tx_enable = 1;
-		break;
-	default:
+	if (cfg.tx_type != HWTSTAMP_TX_OFF && cfg.tx_type != HWTSTAMP_TX_ON)
 		return -ERANGE;
-	}
 
 	switch (cfg.rx_filter) {
 	case HWTSTAMP_FILTER_NONE:
@@ -1371,26 +1467,47 @@ static int cpsw_hwtstamp_ioctl(struct net_device *dev, struct ifreq *ifr)
 		return -ERANGE;
 	}
 
+	cpts->tx_enable = cfg.tx_type == HWTSTAMP_TX_ON;
+
 	switch (priv->version) {
 	case CPSW_VERSION_1:
 		cpsw_hwtstamp_v1(priv);
 		break;
 	case CPSW_VERSION_2:
+	case CPSW_VERSION_3:
 		cpsw_hwtstamp_v2(priv);
 		break;
 	default:
-		return -ENOTSUPP;
+		WARN_ON(1);
 	}
 
 	return copy_to_user(ifr->ifr_data, &cfg, sizeof(cfg)) ? -EFAULT : 0;
 }
 
+static int cpsw_hwtstamp_get(struct net_device *dev, struct ifreq *ifr)
+{
+	struct cpsw_priv *priv = netdev_priv(dev);
+	struct cpts *cpts = priv->cpts;
+	struct hwtstamp_config cfg;
+
+	if (priv->version != CPSW_VERSION_1 &&
+	    priv->version != CPSW_VERSION_2 &&
+	    priv->version != CPSW_VERSION_3)
+		return -EOPNOTSUPP;
+
+	cfg.flags = 0;
+	cfg.tx_type = cpts->tx_enable ? HWTSTAMP_TX_ON : HWTSTAMP_TX_OFF;
+	cfg.rx_filter = (cpts->rx_enable ?
+			 HWTSTAMP_FILTER_PTP_V2_EVENT : HWTSTAMP_FILTER_NONE);
+
+	return copy_to_user(ifr->ifr_data, &cfg, sizeof(cfg)) ? -EFAULT : 0;
+}
+
 #endif /*CONFIG_TI_CPTS*/
 
 static int cpsw_ndo_ioctl(struct net_device *dev, struct ifreq *req, int cmd)
 {
 	struct cpsw_priv *priv = netdev_priv(dev);
-	struct mii_ioctl_data *data = if_mii(req);
 	int slave_no = cpsw_slave_index(priv);
 
 	if (!netif_running(dev))
@@ -1399,16 +1516,15 @@ static int cpsw_ndo_ioctl(struct net_device *dev, struct ifreq *req, int cmd)
 	switch (cmd) {
 #ifdef CONFIG_TI_CPTS
 	case SIOCSHWTSTAMP:
-		return cpsw_hwtstamp_ioctl(dev, req);
+		return cpsw_hwtstamp_set(dev, req);
+	case SIOCGHWTSTAMP:
+		return cpsw_hwtstamp_get(dev, req);
 #endif
-	case SIOCGMIIPHY:
-		data->phy_id = priv->slaves[slave_no].phy->addr;
-		break;
-	default:
-		return -ENOTSUPP;
 	}
 
-	return 0;
+	if (!priv->slaves[slave_no].phy)
+		return -EOPNOTSUPP;
+	return phy_mii_ioctl(priv->slaves[slave_no].phy, req, cmd);
 }
 
 static void cpsw_ndo_tx_timeout(struct net_device *ndev)
@@ -1416,7 +1532,7 @@ static void cpsw_ndo_tx_timeout(struct net_device *ndev)
 	struct cpsw_priv *priv = netdev_priv(ndev);
 
 	cpsw_err(priv, tx_err, "transmit timeout, restarting dma\n");
-	priv->stats.tx_errors++;
+	ndev->stats.tx_errors++;
 	cpsw_intr_disable(priv);
 	cpdma_ctlr_int_ctrl(priv->dma, false);
 	cpdma_chan_stop(priv->txch);
@@ -1455,12 +1571,6 @@ static int cpsw_ndo_set_mac_address(struct net_device *ndev, void *p)
 	return 0;
 }
 
-static struct net_device_stats *cpsw_ndo_get_stats(struct net_device *ndev)
-{
-	struct cpsw_priv *priv = netdev_priv(ndev);
-	return &priv->stats;
-}
-
 #ifdef CONFIG_NET_POLL_CONTROLLER
 static void cpsw_ndo_poll_controller(struct net_device *ndev)
 {
@@ -1548,13 +1658,11 @@ static const struct net_device_ops cpsw_netdev_ops = {
 	.ndo_open		= cpsw_ndo_open,
 	.ndo_stop		= cpsw_ndo_stop,
 	.ndo_start_xmit		= cpsw_ndo_start_xmit,
-	.ndo_change_rx_flags	= cpsw_ndo_change_rx_flags,
 	.ndo_set_mac_address	= cpsw_ndo_set_mac_address,
 	.ndo_do_ioctl		= cpsw_ndo_ioctl,
 	.ndo_validate_addr	= eth_validate_addr,
 	.ndo_change_mtu		= eth_change_mtu,
 	.ndo_tx_timeout		= cpsw_ndo_tx_timeout,
-	.ndo_get_stats		= cpsw_ndo_get_stats,
 	.ndo_set_rx_mode	= cpsw_ndo_set_rx_mode,
 #ifdef CONFIG_NET_POLL_CONTROLLER
 	.ndo_poll_controller	= cpsw_ndo_poll_controller,
@@ -1705,74 +1813,67 @@ static int cpsw_probe_dt(struct cpsw_platform_data *data,
 		return -EINVAL;
 
 	if (of_property_read_u32(node, "slaves", &prop)) {
-		pr_err("Missing slaves property in the DT.\n");
+		dev_err(&pdev->dev, "Missing slaves property in the DT.\n");
 		return -EINVAL;
 	}
 	data->slaves = prop;
 
 	if (of_property_read_u32(node, "active_slave", &prop)) {
-		pr_err("Missing active_slave property in the DT.\n");
-		ret = -EINVAL;
-		goto error_ret;
+		dev_err(&pdev->dev, "Missing active_slave property in the DT.\n");
+		return -EINVAL;
 	}
 	data->active_slave = prop;
 
 	if (of_property_read_u32(node, "cpts_clock_mult", &prop)) {
-		pr_err("Missing cpts_clock_mult property in the DT.\n");
-		ret = -EINVAL;
-		goto error_ret;
+		dev_err(&pdev->dev, "Missing cpts_clock_mult property in the DT.\n");
+		return -EINVAL;
 	}
 	data->cpts_clock_mult = prop;
 
 	if (of_property_read_u32(node, "cpts_clock_shift", &prop)) {
-		pr_err("Missing cpts_clock_shift property in the DT.\n");
-		ret = -EINVAL;
-		goto error_ret;
+		dev_err(&pdev->dev, "Missing cpts_clock_shift property in the DT.\n");
+		return -EINVAL;
 	}
 	data->cpts_clock_shift = prop;
 
-	data->slave_data = kcalloc(data->slaves, sizeof(struct cpsw_slave_data),
-				   GFP_KERNEL);
+	data->slave_data = devm_kzalloc(&pdev->dev, data->slaves
+					* sizeof(struct cpsw_slave_data),
+					GFP_KERNEL);
 	if (!data->slave_data)
-		return -EINVAL;
+		return -ENOMEM;
 
 	if (of_property_read_u32(node, "cpdma_channels", &prop)) {
-		pr_err("Missing cpdma_channels property in the DT.\n");
-		ret = -EINVAL;
-		goto error_ret;
+		dev_err(&pdev->dev, "Missing cpdma_channels property in the DT.\n");
+		return -EINVAL;
 	}
 	data->channels = prop;
 
 	if (of_property_read_u32(node, "ale_entries", &prop)) {
-		pr_err("Missing ale_entries property in the DT.\n");
-		ret = -EINVAL;
-		goto error_ret;
+		dev_err(&pdev->dev, "Missing ale_entries property in the DT.\n");
+		return -EINVAL;
 	}
 	data->ale_entries = prop;
 
 	if (of_property_read_u32(node, "bd_ram_size", &prop)) {
-		pr_err("Missing bd_ram_size property in the DT.\n");
-		ret = -EINVAL;
-		goto error_ret;
+		dev_err(&pdev->dev, "Missing bd_ram_size property in the DT.\n");
+		return -EINVAL;
 	}
 	data->bd_ram_size = prop;
 
 	if (of_property_read_u32(node, "rx_descs", &prop)) {
-		pr_err("Missing rx_descs property in the DT.\n");
-		ret = -EINVAL;
-		goto error_ret;
+		dev_err(&pdev->dev, "Missing rx_descs property in the DT.\n");
+		return -EINVAL;
 	}
 	data->rx_descs = prop;
 
 	if (of_property_read_u32(node, "mac_control", &prop)) {
-		pr_err("Missing mac_control property in the DT.\n");
-		ret = -EINVAL;
-		goto error_ret;
+		dev_err(&pdev->dev, "Missing mac_control property in the DT.\n");
+		return -EINVAL;
 	}
 	data->mac_control = prop;
 
-	if (!of_property_read_u32(node, "dual_emac", &prop))
-		data->dual_emac = prop;
+	if (of_property_read_bool(node, "dual_emac"))
+		data->dual_emac = 1;
 
 	/*
 	 * Populate all the child nodes here...
@@ -1780,9 +1881,9 @@ static int cpsw_probe_dt(struct cpsw_platform_data *data,
 	ret = of_platform_populate(node, NULL, NULL, &pdev->dev);
 	/* We do not want to force this, as in some cases may not have child */
 	if (ret)
-		pr_warn("Doesn't have any child node\n");
+		dev_warn(&pdev->dev, "Doesn't have any child node\n");
 
-	for_each_node_by_name(slave_node, "slave") {
+	for_each_child_of_node(node, slave_node) {
 		struct cpsw_slave_data *slave_data = data->slave_data + i;
 		const void *mac_addr = NULL;
 		u32 phyid;
@@ -1791,15 +1892,23 @@ static int cpsw_probe_dt(struct cpsw_platform_data *data,
 		struct device_node *mdio_node;
 		struct platform_device *mdio;
 
+		/* This is no slave child node, continue */
+		if (strcmp(slave_node->name, "slave"))
+			continue;
+
 		parp = of_get_property(slave_node, "phy_id", &lenp);
 		if ((parp == NULL) || (lenp != (sizeof(void *) * 2))) {
-			pr_err("Missing slave[%d] phy_id property\n", i);
-			ret = -EINVAL;
-			goto error_ret;
+			dev_err(&pdev->dev, "Missing slave[%d] phy_id property\n", i);
+			return -EINVAL;
 		}
 		mdio_node = of_find_node_by_phandle(be32_to_cpup(parp));
 		phyid = be32_to_cpup(parp+1);
 		mdio = of_find_device_by_node(mdio_node);
+		of_node_put(mdio_node);
+		if (!mdio) {
+			pr_err("Missing mdio platform device\n");
+			return -EINVAL;
+		}
 		snprintf(slave_data->phy_id, sizeof(slave_data->phy_id),
 			 PHY_ID_FMT, mdio->name, phyid);
 
@@ -1808,27 +1917,30 @@ static int cpsw_probe_dt(struct cpsw_platform_data *data,
 			memcpy(slave_data->mac_addr, mac_addr, ETH_ALEN);
 
 		slave_data->phy_if = of_get_phy_mode(slave_node);
+		if (slave_data->phy_if < 0) {
+			dev_err(&pdev->dev, "Missing or malformed slave[%d] phy-mode property\n",
+				i);
+			return slave_data->phy_if;
+		}
 
 		if (data->dual_emac) {
 			if (of_property_read_u32(slave_node, "dual_emac_res_vlan",
 						 &prop)) {
-				pr_err("Missing dual_emac_res_vlan in DT.\n");
+				dev_err(&pdev->dev, "Missing dual_emac_res_vlan in DT.\n");
 				slave_data->dual_emac_res_vlan = i+1;
-				pr_err("Using %d as Reserved VLAN for %d slave\n",
-				       slave_data->dual_emac_res_vlan, i);
+				dev_err(&pdev->dev, "Using %d as Reserved VLAN for %d slave\n",
+					slave_data->dual_emac_res_vlan, i);
 			} else {
 				slave_data->dual_emac_res_vlan = prop;
 			}
 		}
 
 		i++;
+		if (i == data->slaves)
+			break;
 	}
 
 	return 0;
-
-error_ret:
-	kfree(data->slave_data);
-	return ret;
 }
 
 static int cpsw_probe_dual_emac(struct platform_device *pdev,
@@ -1841,7 +1953,7 @@ static int cpsw_probe_dual_emac(struct platform_device *pdev,
 
 	ndev = alloc_etherdev(sizeof(struct cpsw_priv));
 	if (!ndev) {
-		pr_err("cpsw: error allocating net_device\n");
+		dev_err(&pdev->dev, "cpsw: error allocating net_device\n");
 		return -ENOMEM;
 	}
 
@@ -1857,10 +1969,10 @@ static int cpsw_probe_dual_emac(struct platform_device *pdev,
 	if (is_valid_ether_addr(data->slave_data[1].mac_addr)) {
 		memcpy(priv_sl2->mac_addr, data->slave_data[1].mac_addr,
 			ETH_ALEN);
-		pr_info("cpsw: Detected MACID = %pM\n", priv_sl2->mac_addr);
+		dev_info(&pdev->dev, "cpsw: Detected MACID = %pM\n", priv_sl2->mac_addr);
 	} else {
 		random_ether_addr(priv_sl2->mac_addr);
-		pr_info("cpsw: Random MACID = %pM\n", priv_sl2->mac_addr);
+		dev_info(&pdev->dev, "cpsw: Random MACID = %pM\n", priv_sl2->mac_addr);
 	}
 	memcpy(ndev->dev_addr, priv_sl2->mac_addr, ETH_ALEN);
 
@@ -1870,7 +1982,6 @@ static int cpsw_probe_dual_emac(struct platform_device *pdev,
 	priv_sl2->coal_intvl = 0;
 	priv_sl2->bus_freq_mhz = priv->bus_freq_mhz;
 
-	priv_sl2->cpsw_res = priv->cpsw_res;
 	priv_sl2->regs = priv->regs;
 	priv_sl2->host_port = priv->host_port;
 	priv_sl2->host_port_regs = priv->host_port_regs;
@@ -1892,14 +2003,14 @@ static int cpsw_probe_dual_emac(struct platform_device *pdev,
 	ndev->features |= NETIF_F_HW_VLAN_CTAG_FILTER;
 
 	ndev->netdev_ops = &cpsw_netdev_ops;
-	SET_ETHTOOL_OPS(ndev, &cpsw_ethtool_ops);
+	ndev->ethtool_ops = &cpsw_ethtool_ops;
 	netif_napi_add(ndev, &priv_sl2->napi, cpsw_poll, CPSW_POLL_WEIGHT);
 
 	/* register the network device */
 	SET_NETDEV_DEV(ndev, &pdev->dev);
 	ret = register_netdev(ndev);
 	if (ret) {
-		pr_err("cpsw: error registering net device\n");
+		dev_err(&pdev->dev, "cpsw: error registering net device\n");
 		free_netdev(ndev);
 		ret = -ENODEV;
 	}
@@ -1914,14 +2025,14 @@ static int cpsw_probe(struct platform_device *pdev)
 	struct cpsw_priv		*priv;
 	struct cpdma_params		dma_params;
 	struct cpsw_ale_params		ale_params;
-	void __iomem			*ss_regs, *wr_regs;
-	struct resource			*res;
+	void __iomem			*ss_regs;
+	struct resource			*res, *ss_res;
 	u32 slave_offset, sliver_offset, slave_size;
 	int ret = 0, i, k = 0;
 
 	ndev = alloc_etherdev(sizeof(struct cpsw_priv));
 	if (!ndev) {
-		pr_err("error allocating net_device\n");
+		dev_err(&pdev->dev, "error allocating net_device\n");
 		return -ENOMEM;
 	}
 
@@ -1936,7 +2047,7 @@ static int cpsw_probe(struct platform_device *pdev)
 	priv->cpts = devm_kzalloc(&pdev->dev, sizeof(struct cpts), GFP_KERNEL);
 	priv->irq_enabled = true;
 	if (!priv->cpts) {
-		pr_err("error allocating cpts\n");
+		dev_err(&pdev->dev, "error allocating cpts\n");
 		goto clean_ndev_ret;
 	}
 
@@ -1949,27 +2060,28 @@ static int cpsw_probe(struct platform_device *pdev)
 	pinctrl_pm_select_default_state(&pdev->dev);
 
 	if (cpsw_probe_dt(&priv->data, pdev)) {
-		pr_err("cpsw: platform data missing\n");
+		dev_err(&pdev->dev, "cpsw: platform data missing\n");
 		ret = -ENODEV;
-		goto clean_ndev_ret;
+		goto clean_runtime_disable_ret;
 	}
 	data = &priv->data;
 
 	if (is_valid_ether_addr(data->slave_data[0].mac_addr)) {
 		memcpy(priv->mac_addr, data->slave_data[0].mac_addr, ETH_ALEN);
-		pr_info("Detected MACID = %pM\n", priv->mac_addr);
+		dev_info(&pdev->dev, "Detected MACID = %pM\n", priv->mac_addr);
 	} else {
 		eth_random_addr(priv->mac_addr);
-		pr_info("Random MACID = %pM\n", priv->mac_addr);
+		dev_info(&pdev->dev, "Random MACID = %pM\n", priv->mac_addr);
 	}
 
 	memcpy(ndev->dev_addr, priv->mac_addr, ETH_ALEN);
 
-	priv->slaves = kzalloc(sizeof(struct cpsw_slave) * data->slaves,
-			       GFP_KERNEL);
+	priv->slaves = devm_kzalloc(&pdev->dev,
+				    sizeof(struct cpsw_slave) * data->slaves,
+				    GFP_KERNEL);
 	if (!priv->slaves) {
-		ret = -EBUSY;
-		goto clean_ndev_ret;
+		ret = -ENOMEM;
+		goto clean_runtime_disable_ret;
 	}
 	for (i = 0; i < data->slaves; i++)
 		priv->slaves[i].slave_num = i;
@@ -1977,55 +2089,37 @@ static int cpsw_probe(struct platform_device *pdev)
 	priv->slaves[0].ndev = ndev;
 	priv->emac_port = 0;
 
-	priv->clk = clk_get(&pdev->dev, "fck");
+	priv->clk = devm_clk_get(&pdev->dev, "fck");
 	if (IS_ERR(priv->clk)) {
-		dev_err(&pdev->dev, "fck is not found\n");
+		dev_err(priv->dev, "fck is not found\n");
 		ret = -ENODEV;
-		goto clean_slave_ret;
+		goto clean_runtime_disable_ret;
 	}
 	priv->coal_intvl = 0;
 	priv->bus_freq_mhz = clk_get_rate(priv->clk) / 1000000;
 
-	priv->cpsw_res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-	if (!priv->cpsw_res) {
-		dev_err(priv->dev, "error getting i/o resource\n");
-		ret = -ENOENT;
-		goto clean_clk_ret;
-	}
-	if (!request_mem_region(priv->cpsw_res->start,
-				resource_size(priv->cpsw_res), ndev->name)) {
-		dev_err(priv->dev, "failed request i/o region\n");
-		ret = -ENXIO;
-		goto clean_clk_ret;
-	}
-	ss_regs = ioremap(priv->cpsw_res->start, resource_size(priv->cpsw_res));
-	if (!ss_regs) {
-		dev_err(priv->dev, "unable to map i/o region\n");
-		goto clean_cpsw_iores_ret;
+	ss_res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+	ss_regs = devm_ioremap_resource(&pdev->dev, ss_res);
+	if (IS_ERR(ss_regs)) {
+		ret = PTR_ERR(ss_regs);
+		goto clean_runtime_disable_ret;
 	}
 	priv->regs = ss_regs;
-	priv->version = __raw_readl(&priv->regs->id_ver);
 	priv->host_port = HOST_PORT_NUM;
 
-	priv->cpsw_wr_res = platform_get_resource(pdev, IORESOURCE_MEM, 1);
-	if (!priv->cpsw_wr_res) {
-		dev_err(priv->dev, "error getting i/o resource\n");
-		ret = -ENOENT;
-		goto clean_iomap_ret;
-	}
-	if (!request_mem_region(priv->cpsw_wr_res->start,
-			resource_size(priv->cpsw_wr_res), ndev->name)) {
-		dev_err(priv->dev, "failed request i/o region\n");
-		ret = -ENXIO;
-		goto clean_iomap_ret;
-	}
-	wr_regs = ioremap(priv->cpsw_wr_res->start,
-				resource_size(priv->cpsw_wr_res));
-	if (!wr_regs) {
-		dev_err(priv->dev, "unable to map i/o region\n");
-		goto clean_cpsw_wr_iores_ret;
+	/* Need to enable clocks with runtime PM api to access module
+	 * registers
+	 */
+	pm_runtime_get_sync(&pdev->dev);
+	priv->version = readl(&priv->regs->id_ver);
+	pm_runtime_put_sync(&pdev->dev);
+
+	res = platform_get_resource(pdev, IORESOURCE_MEM, 1);
+	priv->wr_regs = devm_ioremap_resource(&pdev->dev, res);
+	if (IS_ERR(priv->wr_regs)) {
+		ret = PTR_ERR(priv->wr_regs);
+		goto clean_runtime_disable_ret;
 	}
-	priv->wr_regs = wr_regs;
 
 	memset(&dma_params, 0, sizeof(dma_params));
 	memset(&ale_params, 0, sizeof(ale_params));
@@ -2056,12 +2150,12 @@ static int cpsw_probe(struct platform_device *pdev)
 		slave_size           = CPSW2_SLAVE_SIZE;
 		sliver_offset        = CPSW2_SLIVER_OFFSET;
 		dma_params.desc_mem_phys =
-			(u32 __force) priv->cpsw_res->start + CPSW2_BD_OFFSET;
+			(u32 __force) ss_res->start + CPSW2_BD_OFFSET;
 		break;
 	default:
 		dev_err(priv->dev, "unknown version 0x%08x\n", priv->version);
 		ret = -ENODEV;
-		goto clean_cpsw_wr_iores_ret;
+		goto clean_runtime_disable_ret;
 	}
 	for (i = 0; i < priv->data.slaves; i++) {
 		struct cpsw_slave *slave = &priv->slaves[i];
@@ -2089,7 +2183,7 @@ static int cpsw_probe(struct platform_device *pdev)
 	if (!priv->dma) {
 		dev_err(priv->dev, "error initializing dma\n");
 		ret = -ENOMEM;
-		goto clean_wr_iomap_ret;
+		goto clean_runtime_disable_ret;
 	}
 
 	priv->txch = cpdma_chan_create(priv->dma, tx_chan_num(0),
@@ -2124,8 +2218,8 @@ static int cpsw_probe(struct platform_device *pdev)
 
 	while ((res = platform_get_resource(priv->pdev, IORESOURCE_IRQ, k))) {
 		for (i = res->start; i <= res->end; i++) {
-			if (request_irq(i, cpsw_interrupt, 0,
-					dev_name(&pdev->dev), priv)) {
+			if (devm_request_irq(&pdev->dev, i, cpsw_interrupt, 0,
+					     dev_name(&pdev->dev), priv)) {
 				dev_err(priv->dev, "error attaching irq\n");
 				goto clean_ale_ret;
 			}
@@ -2138,7 +2232,7 @@ static int cpsw_probe(struct platform_device *pdev)
 	ndev->features |= NETIF_F_HW_VLAN_CTAG_FILTER;
 
 	ndev->netdev_ops = &cpsw_netdev_ops;
-	SET_ETHTOOL_OPS(ndev, &cpsw_ethtool_ops);
+	ndev->ethtool_ops = &cpsw_ethtool_ops;
 	netif_napi_add(ndev, &priv->napi, cpsw_poll, CPSW_POLL_WEIGHT);
 
 	/* register the network device */
@@ -2147,52 +2241,31 @@ static int cpsw_probe(struct platform_device *pdev)
 	if (ret) {
 		dev_err(priv->dev, "error registering net device\n");
 		ret = -ENODEV;
-		goto clean_irq_ret;
+		goto clean_ale_ret;
 	}
 
-	if (cpts_register(&pdev->dev, priv->cpts,
-			  data->cpts_clock_mult, data->cpts_clock_shift))
-		dev_err(priv->dev, "error registering cpts device\n");
-
-	cpsw_notice(priv, probe, "initialized device (regs %x, irq %d)\n",
-		  priv->cpsw_res->start, ndev->irq);
+	cpsw_notice(priv, probe, "initialized device (regs %pa, irq %d)\n",
+		    &ss_res->start, ndev->irq);
 
 	if (priv->data.dual_emac) {
 		ret = cpsw_probe_dual_emac(pdev, priv);
 		if (ret) {
 			cpsw_err(priv, probe, "error probe slave 2 emac interface\n");
-			goto clean_irq_ret;
+			goto clean_ale_ret;
 		}
 	}
 
 	return 0;
 
-clean_irq_ret:
-	for (i = 0; i < priv->num_irqs; i++)
-		free_irq(priv->irqs_table[i], priv);
 clean_ale_ret:
 	cpsw_ale_destroy(priv->ale);
 clean_dma_ret:
 	cpdma_chan_destroy(priv->txch);
 	cpdma_chan_destroy(priv->rxch);
 	cpdma_ctlr_destroy(priv->dma);
-clean_wr_iomap_ret:
-	iounmap(priv->wr_regs);
-clean_cpsw_wr_iores_ret:
-	release_mem_region(priv->cpsw_wr_res->start,
-			   resource_size(priv->cpsw_wr_res));
-clean_iomap_ret:
-	iounmap(priv->regs);
-clean_cpsw_iores_ret:
-	release_mem_region(priv->cpsw_res->start,
-			   resource_size(priv->cpsw_res));
-clean_clk_ret:
-	clk_put(priv->clk);
-clean_slave_ret:
+clean_runtime_disable_ret:
 	pm_runtime_disable(&pdev->dev);
-	kfree(priv->slaves);
 clean_ndev_ret:
-	kfree(priv->data.slave_data);
 	free_netdev(priv->ndev);
 	return ret;
 }
@@ -2201,30 +2274,16 @@ static int cpsw_remove(struct platform_device *pdev)
 {
 	struct net_device *ndev = platform_get_drvdata(pdev);
 	struct cpsw_priv *priv = netdev_priv(ndev);
-	int i;
 
 	if (priv->data.dual_emac)
 		unregister_netdev(cpsw_get_slave_ndev(priv, 1));
 	unregister_netdev(ndev);
 
-	cpts_unregister(priv->cpts);
-	for (i = 0; i < priv->num_irqs; i++)
-		free_irq(priv->irqs_table[i], priv);
-
 	cpsw_ale_destroy(priv->ale);
 	cpdma_chan_destroy(priv->txch);
 	cpdma_chan_destroy(priv->rxch);
 	cpdma_ctlr_destroy(priv->dma);
-	iounmap(priv->regs);
-	release_mem_region(priv->cpsw_res->start,
-			   resource_size(priv->cpsw_res));
-	iounmap(priv->wr_regs);
-	release_mem_region(priv->cpsw_wr_res->start,
-			   resource_size(priv->cpsw_wr_res));
 	pm_runtime_disable(&pdev->dev);
-	clk_put(priv->clk);
-	kfree(priv->slaves);
-	kfree(priv->data.slave_data);
 	if (priv->data.dual_emac)
 		free_netdev(cpsw_get_slave_ndev(priv, 1));
 	free_netdev(ndev);
@@ -2239,8 +2298,9 @@ static int cpsw_suspend(struct device *dev)
 
 	if (netif_running(ndev))
 		cpsw_ndo_stop(ndev);
-	soft_reset("sliver 0", &priv->slaves[0].sliver->soft_reset);
-	soft_reset("sliver 1", &priv->slaves[1].sliver->soft_reset);
+
+	for_each_slave(priv, soft_reset_slave);
+
 	pm_runtime_put_sync(&pdev->dev);
 
 	/* Select sleep pin state */
@@ -2280,7 +2340,7 @@ static struct platform_driver cpsw_driver = {
 		.name	 = "cpsw",
 		.owner	 = THIS_MODULE,
 		.pm	 = &cpsw_pm_ops,
-		.of_match_table = of_match_ptr(cpsw_of_mtable),
+		.of_match_table = cpsw_of_mtable,
 	},
 	.probe = cpsw_probe,
 	.remove = cpsw_remove,