1 files changed, 260 insertions, 70 deletions

diff --git a/drivers/net/ethernet/ti/cpsw.c b/drivers/net/ethernet/ti/cpsw.c
index 4781d3d8e18..59c43918883 100644
--- a/drivers/net/ethernet/ti/cpsw.c
+++ b/drivers/net/ethernet/ti/cpsw.c
@@ -126,6 +126,13 @@ do {								\
 #define CPSW_FIFO_DUAL_MAC_MODE		(1 << 15)
 #define CPSW_FIFO_RATE_LIMIT_MODE	(2 << 15)
 
+#define CPSW_INTPACEEN		(0x3f << 16)
+#define CPSW_INTPRESCALE_MASK	(0x7FF << 0)
+#define CPSW_CMINTMAX_CNT	63
+#define CPSW_CMINTMIN_CNT	2
+#define CPSW_CMINTMAX_INTVL	(1000 / CPSW_CMINTMIN_CNT)
+#define CPSW_CMINTMIN_INTVL	((1000 / CPSW_CMINTMAX_CNT) + 1)
+
 #define cpsw_enable_irq(priv)	\
 	do {			\
 		u32 i;		\
@@ -139,6 +146,10 @@ do {								\
 			disable_irq_nosync(priv->irqs_table[i]); \
 	} while (0);
 
+#define cpsw_slave_index(priv)				\
+		((priv->data.dual_emac) ? priv->emac_port :	\
+		priv->data.active_slave)
+
 static int debug_level;
 module_param(debug_level, int, 0);
 MODULE_PARM_DESC(debug_level, "cpsw debug level (NETIF_MSG bits)");
@@ -160,6 +171,15 @@ struct cpsw_wr_regs {
 	u32	rx_en;
 	u32	tx_en;
 	u32	misc_en;
+	u32	mem_allign1[8];
+	u32	rx_thresh_stat;
+	u32	rx_stat;
+	u32	tx_stat;
+	u32	misc_stat;
+	u32	mem_allign2[8];
+	u32	rx_imax;
+	u32	tx_imax;
+
 };
 
 struct cpsw_ss_regs {
@@ -314,6 +334,8 @@ struct cpsw_priv {
 	struct cpsw_host_regs __iomem	*host_port_regs;
 	u32				msg_enable;
 	u32				version;
+	u32				coal_intvl;
+	u32				bus_freq_mhz;
 	struct net_device_stats		stats;
 	int				rx_packet_max;
 	int				host_port;
@@ -326,6 +348,7 @@ struct cpsw_priv {
 	/* snapshot of IRQ numbers */
 	u32 irqs_table[4];
 	u32 num_irqs;
+	bool irq_enabled;
 	struct cpts *cpts;
 	u32 emac_port;
 };
@@ -333,12 +356,15 @@ struct cpsw_priv {
 #define napi_to_priv(napi)	container_of(napi, struct cpsw_priv, napi)
 #define for_each_slave(priv, func, arg...)				\
 	do {								\
-		int idx;						\
+		struct cpsw_slave *slave;				\
+		int n;							\
 		if (priv->data.dual_emac)				\
 			(func)((priv)->slaves + priv->emac_port, ##arg);\
 		else							\
-			for (idx = 0; idx < (priv)->data.slaves; idx++)	\
-				(func)((priv)->slaves + idx, ##arg);	\
+			for (n = (priv)->data.slaves,			\
+					slave = (priv)->slaves;		\
+					n; n--)				\
+				(func)(slave++, ##arg);			\
 	} while (0)
 #define cpsw_get_slave_ndev(priv, __slave_no__)				\
 	(priv->slaves[__slave_no__].ndev)
@@ -446,62 +472,69 @@ void cpsw_tx_handler(void *token, int len, int status)
 void cpsw_rx_handler(void *token, int len, int status)
 {
 	struct sk_buff		*skb = token;
+	struct sk_buff		*new_skb;
 	struct net_device	*ndev = skb->dev;
 	struct cpsw_priv	*priv = netdev_priv(ndev);
 	int			ret = 0;
 
 	cpsw_dual_emac_src_port_detect(status, priv, ndev, skb);
 
-	/* free and bail if we are shutting down */
-	if (unlikely(!netif_running(ndev)) ||
-			unlikely(!netif_carrier_ok(ndev))) {
+	if (unlikely(status < 0)) {
+		/* the interface is going down, skbs are purged */
 		dev_kfree_skb_any(skb);
 		return;
 	}
-	if (likely(status >= 0)) {
+
+	new_skb = netdev_alloc_skb_ip_align(ndev, priv->rx_packet_max);
+	if (new_skb) {
 		skb_put(skb, len);
 		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++;
-		skb = NULL;
-	}
-
-	if (unlikely(!netif_running(ndev))) {
-		if (skb)
-			dev_kfree_skb_any(skb);
-		return;
+	} else {
+		priv->stats.rx_dropped++;
+		new_skb = skb;
 	}
 
-	if (likely(!skb)) {
-		skb = netdev_alloc_skb_ip_align(ndev, priv->rx_packet_max);
-		if (WARN_ON(!skb))
-			return;
-
-		ret = cpdma_chan_submit(priv->rxch, skb, skb->data,
-					skb_tailroom(skb), 0, GFP_KERNEL);
-	}
-	WARN_ON(ret < 0);
+	ret = cpdma_chan_submit(priv->rxch, new_skb, new_skb->data,
+			skb_tailroom(new_skb), 0);
+	if (WARN_ON(ret < 0))
+		dev_kfree_skb_any(new_skb);
 }
 
 static irqreturn_t cpsw_interrupt(int irq, void *dev_id)
 {
 	struct cpsw_priv *priv = dev_id;
+	u32 rx, tx, rx_thresh;
 
-	if (likely(netif_running(priv->ndev))) {
-		cpsw_intr_disable(priv);
+	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) {
 		cpsw_disable_irq(priv);
+		priv->irq_enabled = false;
+	}
+
+	if (netif_running(priv->ndev)) {
 		napi_schedule(&priv->napi);
-	} else {
-		priv = cpsw_get_slave_priv(priv, 1);
-		if (likely(priv) && likely(netif_running(priv->ndev))) {
-			cpsw_intr_disable(priv);
-			cpsw_disable_irq(priv);
-			napi_schedule(&priv->napi);
-		}
+		return IRQ_HANDLED;
+	}
+
+	priv = cpsw_get_slave_priv(priv, 1);
+	if (!priv)
+		return IRQ_NONE;
+
+	if (netif_running(priv->ndev)) {
+		napi_schedule(&priv->napi);
+		return IRQ_HANDLED;
 	}
-	return IRQ_HANDLED;
+	return IRQ_NONE;
 }
 
 static int cpsw_poll(struct napi_struct *napi, int budget)
@@ -515,10 +548,16 @@ static int cpsw_poll(struct napi_struct *napi, int budget)
 
 	num_rx = cpdma_chan_process(priv->rxch, budget);
 	if (num_rx < budget) {
+		struct cpsw_priv *prim_cpsw;
+
 		napi_complete(napi);
 		cpsw_intr_enable(priv);
 		cpdma_ctlr_eoi(priv->dma, CPDMA_EOI_RX);
-		cpsw_enable_irq(priv);
+		prim_cpsw = cpsw_get_slave_priv(priv, 0);
+		if (prim_cpsw->irq_enabled == false) {
+			cpsw_enable_irq(priv);
+			prim_cpsw->irq_enabled = true;
+		}
 	}
 
 	if (num_rx || num_tx)
@@ -612,6 +651,77 @@ static void cpsw_adjust_link(struct net_device *ndev)
 	}
 }
 
+static int cpsw_get_coalesce(struct net_device *ndev,
+				struct ethtool_coalesce *coal)
+{
+	struct cpsw_priv *priv = netdev_priv(ndev);
+
+	coal->rx_coalesce_usecs = priv->coal_intvl;
+	return 0;
+}
+
+static int cpsw_set_coalesce(struct net_device *ndev,
+				struct ethtool_coalesce *coal)
+{
+	struct cpsw_priv *priv = netdev_priv(ndev);
+	u32 int_ctrl;
+	u32 num_interrupts = 0;
+	u32 prescale = 0;
+	u32 addnl_dvdr = 1;
+	u32 coal_intvl = 0;
+
+	if (!coal->rx_coalesce_usecs)
+		return -EINVAL;
+
+	coal_intvl = coal->rx_coalesce_usecs;
+
+	int_ctrl =  readl(&priv->wr_regs->int_control);
+	prescale = priv->bus_freq_mhz * 4;
+
+	if (coal_intvl < CPSW_CMINTMIN_INTVL)
+		coal_intvl = CPSW_CMINTMIN_INTVL;
+
+	if (coal_intvl > CPSW_CMINTMAX_INTVL) {
+		/* Interrupt pacer works with 4us Pulse, we can
+		 * throttle further by dilating the 4us pulse.
+		 */
+		addnl_dvdr = CPSW_INTPRESCALE_MASK / prescale;
+
+		if (addnl_dvdr > 1) {
+			prescale *= addnl_dvdr;
+			if (coal_intvl > (CPSW_CMINTMAX_INTVL * addnl_dvdr))
+				coal_intvl = (CPSW_CMINTMAX_INTVL
+						* addnl_dvdr);
+		} else {
+			addnl_dvdr = 1;
+			coal_intvl = CPSW_CMINTMAX_INTVL;
+		}
+	}
+
+	num_interrupts = (1000 * addnl_dvdr) / coal_intvl;
+	writel(num_interrupts, &priv->wr_regs->rx_imax);
+	writel(num_interrupts, &priv->wr_regs->tx_imax);
+
+	int_ctrl |= CPSW_INTPACEEN;
+	int_ctrl &= (~CPSW_INTPRESCALE_MASK);
+	int_ctrl |= (prescale & CPSW_INTPRESCALE_MASK);
+	writel(int_ctrl, &priv->wr_regs->int_control);
+
+	cpsw_notice(priv, timer, "Set coalesce to %d usecs.\n", coal_intvl);
+	if (priv->data.dual_emac) {
+		int i;
+
+		for (i = 0; i < priv->data.slaves; i++) {
+			priv = netdev_priv(priv->slaves[i].ndev);
+			priv->coal_intvl = coal_intvl;
+		}
+	} else {
+		priv->coal_intvl = coal_intvl;
+	}
+
+	return 0;
+}
+
 static inline int __show_stat(char *buf, int maxlen, const char *name, u32 val)
 {
 	static char *leader = "........................................";
@@ -643,14 +753,14 @@ static inline int cpsw_tx_packet_submit(struct net_device *ndev,
 {
 	if (!priv->data.dual_emac)
 		return cpdma_chan_submit(priv->txch, skb, skb->data,
-				  skb->len, 0, GFP_KERNEL);
+				  skb->len, 0);
 
 	if (ndev == cpsw_get_slave_ndev(priv, 0))
 		return cpdma_chan_submit(priv->txch, skb, skb->data,
-				  skb->len, 1, GFP_KERNEL);
+				  skb->len, 1);
 	else
 		return cpdma_chan_submit(priv->txch, skb, skb->data,
-				  skb->len, 2, GFP_KERNEL);
+				  skb->len, 2);
 }
 
 static inline void cpsw_add_dual_emac_def_ale_entries(
@@ -774,9 +884,19 @@ static void cpsw_init_host_port(struct cpsw_priv *priv)
 	}
 }
 
+static void cpsw_slave_stop(struct cpsw_slave *slave, struct cpsw_priv *priv)
+{
+	if (!slave->phy)
+		return;
+	phy_stop(slave->phy);
+	phy_disconnect(slave->phy);
+	slave->phy = NULL;
+}
+
 static int cpsw_ndo_open(struct net_device *ndev)
 {
 	struct cpsw_priv *priv = netdev_priv(ndev);
+	struct cpsw_priv *prim_cpsw;
 	int i, ret;
 	u32 reg;
 
@@ -819,14 +939,16 @@ static int cpsw_ndo_open(struct net_device *ndev)
 			struct sk_buff *skb;
 
 			ret = -ENOMEM;
-			skb = netdev_alloc_skb_ip_align(priv->ndev,
-							priv->rx_packet_max);
+			skb = __netdev_alloc_skb_ip_align(priv->ndev,
+					priv->rx_packet_max, GFP_KERNEL);
 			if (!skb)
-				break;
+				goto err_cleanup;
 			ret = cpdma_chan_submit(priv->rxch, skb, skb->data,
-					skb_tailroom(skb), 0, GFP_KERNEL);
-			if (WARN_ON(ret < 0))
-				break;
+					skb_tailroom(skb), 0);
+			if (ret < 0) {
+				kfree_skb(skb);
+				goto err_cleanup;
+			}
 		}
 		/* continue even if we didn't manage to submit all
 		 * receive descs
@@ -834,6 +956,22 @@ static int cpsw_ndo_open(struct net_device *ndev)
 		cpsw_info(priv, ifup, "submitted %d rx descriptors\n", i);
 	}
 
+	/* Enable Interrupt pacing if configured */
+	if (priv->coal_intvl != 0) {
+		struct ethtool_coalesce coal;
+
+		coal.rx_coalesce_usecs = (priv->coal_intvl << 4);
+		cpsw_set_coalesce(ndev, &coal);
+	}
+
+	prim_cpsw = cpsw_get_slave_priv(priv, 0);
+	if (prim_cpsw->irq_enabled == false) {
+		if ((priv == prim_cpsw) || !netif_running(prim_cpsw->ndev)) {
+			prim_cpsw->irq_enabled = true;
+			cpsw_enable_irq(prim_cpsw);
+		}
+	}
+
 	cpdma_ctlr_start(priv->dma);
 	cpsw_intr_enable(priv);
 	napi_enable(&priv->napi);
@@ -843,15 +981,13 @@ static int cpsw_ndo_open(struct net_device *ndev)
 	if (priv->data.dual_emac)
 		priv->slaves[priv->emac_port].open_stat = true;
 	return 0;
-}
 
-static void cpsw_slave_stop(struct cpsw_slave *slave, struct cpsw_priv *priv)
-{
-	if (!slave->phy)
-		return;
-	phy_stop(slave->phy);
-	phy_disconnect(slave->phy);
-	slave->phy = NULL;
+err_cleanup:
+	cpdma_ctlr_stop(priv->dma);
+	for_each_slave(priv, cpsw_slave_stop, priv);
+	pm_runtime_put_sync(&priv->pdev->dev);
+	netif_carrier_off(priv->ndev);
+	return ret;
 }
 
 static int cpsw_ndo_stop(struct net_device *ndev)
@@ -942,7 +1078,7 @@ static void cpsw_ndo_change_rx_flags(struct net_device *ndev, int flags)
 
 static void cpsw_hwtstamp_v1(struct cpsw_priv *priv)
 {
-	struct cpsw_slave *slave = &priv->slaves[priv->data.cpts_active_slave];
+	struct cpsw_slave *slave = &priv->slaves[priv->data.active_slave];
 	u32 ts_en, seq_id;
 
 	if (!priv->cpts->tx_enable && !priv->cpts->rx_enable) {
@@ -971,7 +1107,7 @@ static void cpsw_hwtstamp_v2(struct cpsw_priv *priv)
 	if (priv->data.dual_emac)
 		slave = &priv->slaves[priv->emac_port];
 	else
-		slave = &priv->slaves[priv->data.cpts_active_slave];
+		slave = &priv->slaves[priv->data.active_slave];
 
 	ctrl = slave_read(slave, CPSW2_CONTROL);
 	ctrl &= ~CTRL_ALL_TS_MASK;
@@ -1056,14 +1192,26 @@ static int cpsw_hwtstamp_ioctl(struct net_device *dev, struct ifreq *ifr)
 
 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))
 		return -EINVAL;
 
+	switch (cmd) {
 #ifdef CONFIG_TI_CPTS
-	if (cmd == SIOCSHWTSTAMP)
+	case SIOCSHWTSTAMP:
 		return cpsw_hwtstamp_ioctl(dev, req);
 #endif
-	return -ENOTSUPP;
+	case SIOCGMIIPHY:
+		data->phy_id = priv->slaves[slave_no].phy->addr;
+		break;
+	default:
+		return -ENOTSUPP;
+	}
+
+	return 0;
 }
 
 static void cpsw_ndo_tx_timeout(struct net_device *ndev)
@@ -1138,7 +1286,7 @@ clean_vid:
 }
 
 static int cpsw_ndo_vlan_rx_add_vid(struct net_device *ndev,
-		unsigned short vid)
+				    __be16 proto, u16 vid)
 {
 	struct cpsw_priv *priv = netdev_priv(ndev);
 
@@ -1150,7 +1298,7 @@ static int cpsw_ndo_vlan_rx_add_vid(struct net_device *ndev,
 }
 
 static int cpsw_ndo_vlan_rx_kill_vid(struct net_device *ndev,
-		unsigned short vid)
+				     __be16 proto, u16 vid)
 {
 	struct cpsw_priv *priv = netdev_priv(ndev);
 	int ret;
@@ -1244,12 +1392,39 @@ static int cpsw_get_ts_info(struct net_device *ndev,
 	return 0;
 }
 
+static int cpsw_get_settings(struct net_device *ndev,
+			     struct ethtool_cmd *ecmd)
+{
+	struct cpsw_priv *priv = netdev_priv(ndev);
+	int slave_no = cpsw_slave_index(priv);
+
+	if (priv->slaves[slave_no].phy)
+		return phy_ethtool_gset(priv->slaves[slave_no].phy, ecmd);
+	else
+		return -EOPNOTSUPP;
+}
+
+static int cpsw_set_settings(struct net_device *ndev, struct ethtool_cmd *ecmd)
+{
+	struct cpsw_priv *priv = netdev_priv(ndev);
+	int slave_no = cpsw_slave_index(priv);
+
+	if (priv->slaves[slave_no].phy)
+		return phy_ethtool_sset(priv->slaves[slave_no].phy, ecmd);
+	else
+		return -EOPNOTSUPP;
+}
+
 static const struct ethtool_ops cpsw_ethtool_ops = {
 	.get_drvinfo	= cpsw_get_drvinfo,
 	.get_msglevel	= cpsw_get_msglevel,
 	.set_msglevel	= cpsw_set_msglevel,
 	.get_link	= ethtool_op_get_link,
 	.get_ts_info	= cpsw_get_ts_info,
+	.get_settings	= cpsw_get_settings,
+	.set_settings	= cpsw_set_settings,
+	.get_coalesce	= cpsw_get_coalesce,
+	.set_coalesce	= cpsw_set_coalesce,
 };
 
 static void cpsw_slave_init(struct cpsw_slave *slave, struct cpsw_priv *priv,
@@ -1282,12 +1457,12 @@ static int cpsw_probe_dt(struct cpsw_platform_data *data,
 	}
 	data->slaves = prop;
 
-	if (of_property_read_u32(node, "cpts_active_slave", &prop)) {
-		pr_err("Missing cpts_active_slave property in the DT.\n");
+	if (of_property_read_u32(node, "active_slave", &prop)) {
+		pr_err("Missing active_slave property in the DT.\n");
 		ret = -EINVAL;
 		goto error_ret;
 	}
-	data->cpts_active_slave = prop;
+	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");
@@ -1437,6 +1612,9 @@ static int cpsw_probe_dual_emac(struct platform_device *pdev,
 	priv_sl2->slaves = priv->slaves;
 	priv_sl2->clk = priv->clk;
 
+	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;
@@ -1455,8 +1633,7 @@ static int cpsw_probe_dual_emac(struct platform_device *pdev,
 		priv_sl2->irqs_table[i] = priv->irqs_table[i];
 		priv_sl2->num_irqs = priv->num_irqs;
 	}
-
-	ndev->features |= NETIF_F_HW_VLAN_FILTER;
+	ndev->features |= NETIF_F_HW_VLAN_CTAG_FILTER;
 
 	ndev->netdev_ops = &cpsw_netdev_ops;
 	SET_ETHTOOL_OPS(ndev, &cpsw_ethtool_ops);
@@ -1476,7 +1653,7 @@ static int cpsw_probe_dual_emac(struct platform_device *pdev,
 
 static int cpsw_probe(struct platform_device *pdev)
 {
-	struct cpsw_platform_data	*data = pdev->dev.platform_data;
+	struct cpsw_platform_data	*data;
 	struct net_device		*ndev;
 	struct cpsw_priv		*priv;
 	struct cpdma_params		dma_params;
@@ -1501,6 +1678,7 @@ static int cpsw_probe(struct platform_device *pdev)
 	priv->msg_enable = netif_msg_init(debug_level, CPSW_DEBUG);
 	priv->rx_packet_max = max(rx_packet_max, 128);
 	priv->cpts = devm_kzalloc(&pdev->dev, sizeof(struct cpts), GFP_KERNEL);
+	priv->irq_enabled = true;
 	if (!ndev) {
 		pr_err("error allocating cpts\n");
 		goto clean_ndev_ret;
@@ -1546,6 +1724,8 @@ static int cpsw_probe(struct platform_device *pdev)
 		ret = -ENODEV;
 		goto clean_slave_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) {
@@ -1687,12 +1867,12 @@ static int cpsw_probe(struct platform_device *pdev)
 				goto clean_ale_ret;
 			}
 			priv->irqs_table[k] = i;
-			priv->num_irqs = k;
+			priv->num_irqs = k + 1;
 		}
 		k++;
 	}
 
-	ndev->features |= NETIF_F_HW_VLAN_FILTER;
+	ndev->features |= NETIF_F_HW_VLAN_CTAG_FILTER;
 
 	ndev->netdev_ops = &cpsw_netdev_ops;
 	SET_ETHTOOL_OPS(ndev, &cpsw_ethtool_ops);
@@ -1725,7 +1905,8 @@ static int cpsw_probe(struct platform_device *pdev)
 	return 0;
 
 clean_irq_ret:
-	free_irq(ndev->irq, priv);
+	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:
@@ -1748,7 +1929,8 @@ clean_slave_ret:
 	pm_runtime_disable(&pdev->dev);
 	kfree(priv->slaves);
 clean_ndev_ret:
-	free_netdev(ndev);
+	kfree(priv->data.slave_data);
+	free_netdev(priv->ndev);
 	return ret;
 }
 
@@ -1756,12 +1938,17 @@ 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;
 
-	pr_info("removing device");
 	platform_set_drvdata(pdev, NULL);
+	if (priv->data.dual_emac)
+		unregister_netdev(cpsw_get_slave_ndev(priv, 1));
+	unregister_netdev(ndev);
 
 	cpts_unregister(priv->cpts);
-	free_irq(ndev->irq, priv);
+	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);
@@ -1775,8 +1962,10 @@ static int cpsw_remove(struct platform_device *pdev)
 	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);
-
 	return 0;
 }
 
@@ -1812,6 +2001,7 @@ static const struct of_device_id cpsw_of_mtable[] = {
 	{ .compatible = "ti,cpsw", },
 	{ /* sentinel */ },
 };
+MODULE_DEVICE_TABLE(of, cpsw_of_mtable);
 
 static struct platform_driver cpsw_driver = {
 	.driver = {