Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next

Pull networking changes from David Miller:

1) Allow to dump, monitor, and change the bridge multicast database
   using netlink.  From Cong Wang.

2) RFC 5961 TCP blind data injection attack mitigation, from Eric
   Dumazet.

3) Networking user namespace support from Eric W. Biederman.

4) tuntap/virtio-net multiqueue support by Jason Wang.

5) Support for checksum offload of encapsulated packets (basically,
   tunneled traffic can still be checksummed by HW).  From Joseph
   Gasparakis.

6) Allow BPF filter access to VLAN tags, from Eric Dumazet and
   Daniel Borkmann.

7) Bridge port parameters over netlink and BPDU blocking support
   from Stephen Hemminger.

8) Improve data access patterns during inet socket demux by rearranging
   socket layout, from Eric Dumazet.

9) TIPC protocol updates and cleanups from Ying Xue, Paul Gortmaker, and
   Jon Maloy.

10) Update TCP socket hash sizing to be more in line with current day
    realities.  The existing heurstics were choosen a decade ago.
    From Eric Dumazet.

11) Fix races, queue bloat, and excessive wakeups in ATM and
    associated drivers, from Krzysztof Mazur and David Woodhouse.

12) Support DOVE (Distributed Overlay Virtual Ethernet) extensions
    in VXLAN driver, from David Stevens.

13) Add "oops_only" mode to netconsole, from Amerigo Wang.

14) Support set and query of VEB/VEPA bridge mode via PF_BRIDGE, also
    allow DCB netlink to work on namespaces other than the initial
    namespace.  From John Fastabend.

15) Support PTP in the Tigon3 driver, from Matt Carlson.

16) tun/vhost zero copy fixes and improvements, plus turn it on
    by default, from Michael S. Tsirkin.

17) Support per-association statistics in SCTP, from Michele
    Baldessari.

And many, many, driver updates, cleanups, and improvements.  Too
numerous to mention individually.

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next: (1722 commits)
  net/mlx4_en: Add support for destination MAC in steering rules
  net/mlx4_en: Use generic etherdevice.h functions.
  net: ethtool: Add destination MAC address to flow steering API
  bridge: add support of adding and deleting mdb entries
  bridge: notify mdb changes via netlink
  ndisc: Unexport ndisc_{build,send}_skb().
  uapi: add missing netconf.h to export list
  pkt_sched: avoid requeues if possible
  solos-pci: fix double-free of TX skb in DMA mode
  bnx2: Fix accidental reversions.
  bna: Driver Version Updated to 3.1.2.1
  bna: Firmware update
  bna: Add RX State
  bna: Rx Page Based Allocation
  bna: TX Intr Coalescing Fix
  bna: Tx and Rx Optimizations
  bna: Code Cleanup and Enhancements
  ath9k: check pdata variable before dereferencing it
  ath5k: RX timestamp is reported at end of frame
  ath9k_htc: RX timestamp is reported at end of frame
  ...

11 files changed, 619 insertions, 93 deletions

diff --git a/drivers/net/ethernet/freescale/Kconfig b/drivers/net/ethernet/freescale/Kconfig
index feff51664dcf..5ba6e1cbd346 100644
--- a/drivers/net/ethernet/freescale/Kconfig
+++ b/drivers/net/ethernet/freescale/Kconfig
@@ -92,4 +92,13 @@ config GIANFAR
 	  This driver supports the Gigabit TSEC on the MPC83xx, MPC85xx,
 	  and MPC86xx family of chips, and the FEC on the 8540.
 
+config FEC_PTP
+	bool "PTP Hardware Clock (PHC)"
+	depends on FEC && ARCH_MXC
+	select PTP_1588_CLOCK
+	default y if SOC_IMX6Q
+	--help---
+	  Say Y here if you want to use PTP Hardware Clock (PHC) in the
+	  driver.  Only the basic clock operations have been implemented.
+
 endif # NET_VENDOR_FREESCALE
diff --git a/drivers/net/ethernet/freescale/Makefile b/drivers/net/ethernet/freescale/Makefile
index 3d1839afff65..d4d19b3d00ae 100644
--- a/drivers/net/ethernet/freescale/Makefile
+++ b/drivers/net/ethernet/freescale/Makefile
@@ -3,6 +3,7 @@
 #
 
 obj-$(CONFIG_FEC) += fec.o
+obj-$(CONFIG_FEC_PTP) += fec_ptp.o
 obj-$(CONFIG_FEC_MPC52xx) += fec_mpc52xx.o
 ifeq ($(CONFIG_FEC_MPC52xx_MDIO),y)
 	obj-$(CONFIG_FEC_MPC52xx) += fec_mpc52xx_phy.o
diff --git a/drivers/net/ethernet/freescale/fec.c b/drivers/net/ethernet/freescale/fec.c
index fffd20528b5d..0704bcab178a 100644
--- a/drivers/net/ethernet/freescale/fec.c
+++ b/drivers/net/ethernet/freescale/fec.c
@@ -140,21 +140,6 @@ MODULE_PARM_DESC(macaddr, "FEC Ethernet MAC address");
 #endif
 #endif /* CONFIG_M5272 */
 
-/* The number of Tx and Rx buffers.  These are allocated from the page
- * pool.  The code may assume these are power of two, so it it best
- * to keep them that size.
- * We don't need to allocate pages for the transmitter.  We just use
- * the skbuffer directly.
- */
-#define FEC_ENET_RX_PAGES	8
-#define FEC_ENET_RX_FRSIZE	2048
-#define FEC_ENET_RX_FRPPG	(PAGE_SIZE / FEC_ENET_RX_FRSIZE)
-#define RX_RING_SIZE		(FEC_ENET_RX_FRPPG * FEC_ENET_RX_PAGES)
-#define FEC_ENET_TX_FRSIZE	2048
-#define FEC_ENET_TX_FRPPG	(PAGE_SIZE / FEC_ENET_TX_FRSIZE)
-#define TX_RING_SIZE		16	/* Must be power of two */
-#define TX_RING_MOD_MASK	15	/*   for this to work */
-
 #if (((RX_RING_SIZE + TX_RING_SIZE) * 8) > PAGE_SIZE)
 #error "FEC: descriptor ring size constants too large"
 #endif
@@ -179,9 +164,6 @@ MODULE_PARM_DESC(macaddr, "FEC Ethernet MAC address");
 #define PKT_MINBUF_SIZE		64
 #define PKT_MAXBLR_SIZE		1520
 
-/* This device has up to three irqs on some platforms */
-#define FEC_IRQ_NUM		3
-
 /*
  * The 5270/5271/5280/5282/532x RX control register also contains maximum frame
  * size bits. Other FEC hardware does not, so we need to take that into
@@ -194,61 +176,6 @@ MODULE_PARM_DESC(macaddr, "FEC Ethernet MAC address");
 #define	OPT_FRAME_SIZE	0
 #endif
 
-/* The FEC buffer descriptors track the ring buffers.  The rx_bd_base and
- * tx_bd_base always point to the base of the buffer descriptors.  The
- * cur_rx and cur_tx point to the currently available buffer.
- * The dirty_tx tracks the current buffer that is being sent by the
- * controller.  The cur_tx and dirty_tx are equal under both completely
- * empty and completely full conditions.  The empty/ready indicator in
- * the buffer descriptor determines the actual condition.
- */
-struct fec_enet_private {
-	/* Hardware registers of the FEC device */
-	void __iomem *hwp;
-
-	struct net_device *netdev;
-
-	struct clk *clk_ipg;
-	struct clk *clk_ahb;
-
-	/* The saved address of a sent-in-place packet/buffer, for skfree(). */
-	unsigned char *tx_bounce[TX_RING_SIZE];
-	struct	sk_buff* tx_skbuff[TX_RING_SIZE];
-	struct	sk_buff* rx_skbuff[RX_RING_SIZE];
-	ushort	skb_cur;
-	ushort	skb_dirty;
-
-	/* CPM dual port RAM relative addresses */
-	dma_addr_t	bd_dma;
-	/* Address of Rx and Tx buffers */
-	struct bufdesc	*rx_bd_base;
-	struct bufdesc	*tx_bd_base;
-	/* The next free ring entry */
-	struct bufdesc	*cur_rx, *cur_tx;
-	/* The ring entries to be free()ed */
-	struct bufdesc	*dirty_tx;
-
-	uint	tx_full;
-	/* hold while accessing the HW like ringbuffer for tx/rx but not MAC */
-	spinlock_t hw_lock;
-
-	struct	platform_device *pdev;
-
-	int	opened;
-	int	dev_id;
-
-	/* Phylib and MDIO interface */
-	struct	mii_bus *mii_bus;
-	struct	phy_device *phy_dev;
-	int	mii_timeout;
-	uint	phy_speed;
-	phy_interface_t	phy_interface;
-	int	link;
-	int	full_duplex;
-	struct	completion mdio_done;
-	int	irq[FEC_IRQ_NUM];
-};
-
 /* FEC MII MMFR bits definition */
 #define FEC_MMFR_ST		(1 << 30)
 #define FEC_MMFR_OP_READ	(2 << 28)
@@ -353,6 +280,17 @@ fec_enet_start_xmit(struct sk_buff *skb, struct net_device *ndev)
 			| BD_ENET_TX_LAST | BD_ENET_TX_TC);
 	bdp->cbd_sc = status;
 
+#ifdef CONFIG_FEC_PTP
+	bdp->cbd_bdu = 0;
+	if (unlikely(skb_shinfo(skb)->tx_flags & SKBTX_HW_TSTAMP &&
+			fep->hwts_tx_en)) {
+			bdp->cbd_esc = (BD_ENET_TX_TS | BD_ENET_TX_INT);
+			skb_shinfo(skb)->tx_flags |= SKBTX_IN_PROGRESS;
+	} else {
+
+		bdp->cbd_esc = BD_ENET_TX_INT;
+	}
+#endif
 	/* Trigger transmission start */
 	writel(0, fep->hwp + FEC_X_DES_ACTIVE);
 
@@ -510,10 +448,17 @@ fec_restart(struct net_device *ndev, int duplex)
 		writel(1 << 8, fep->hwp + FEC_X_WMRK);
 	}
 
+#ifdef CONFIG_FEC_PTP
+	ecntl |= (1 << 4);
+#endif
+
 	/* And last, enable the transmit and receive processing */
 	writel(ecntl, fep->hwp + FEC_ECNTRL);
 	writel(0, fep->hwp + FEC_R_DES_ACTIVE);
 
+#ifdef CONFIG_FEC_PTP
+	fec_ptp_start_cyclecounter(ndev);
+#endif
 	/* Enable interrupts we wish to service */
 	writel(FEC_DEFAULT_IMASK, fep->hwp + FEC_IMASK);
 }
@@ -599,6 +544,19 @@ fec_enet_tx(struct net_device *ndev)
 			ndev->stats.tx_packets++;
 		}
 
+#ifdef CONFIG_FEC_PTP
+		if (unlikely(skb_shinfo(skb)->tx_flags & SKBTX_IN_PROGRESS)) {
+			struct skb_shared_hwtstamps shhwtstamps;
+			unsigned long flags;
+
+			memset(&shhwtstamps, 0, sizeof(shhwtstamps));
+			spin_lock_irqsave(&fep->tmreg_lock, flags);
+			shhwtstamps.hwtstamp = ns_to_ktime(
+				timecounter_cyc2time(&fep->tc, bdp->ts));
+			spin_unlock_irqrestore(&fep->tmreg_lock, flags);
+			skb_tstamp_tx(skb, &shhwtstamps);
+		}
+#endif
 		if (status & BD_ENET_TX_READY)
 			printk("HEY! Enet xmit interrupt and TX_READY.\n");
 
@@ -725,6 +683,21 @@ fec_enet_rx(struct net_device *ndev)
 			skb_put(skb, pkt_len - 4);	/* Make room */
 			skb_copy_to_linear_data(skb, data, pkt_len - 4);
 			skb->protocol = eth_type_trans(skb, ndev);
+#ifdef CONFIG_FEC_PTP
+			/* Get receive timestamp from the skb */
+			if (fep->hwts_rx_en) {
+				struct skb_shared_hwtstamps *shhwtstamps =
+							    skb_hwtstamps(skb);
+				unsigned long flags;
+
+				memset(shhwtstamps, 0, sizeof(*shhwtstamps));
+
+				spin_lock_irqsave(&fep->tmreg_lock, flags);
+				shhwtstamps->hwtstamp = ns_to_ktime(
+				    timecounter_cyc2time(&fep->tc, bdp->ts));
+				spin_unlock_irqrestore(&fep->tmreg_lock, flags);
+			}
+#endif
 			if (!skb_defer_rx_timestamp(skb))
 				netif_rx(skb);
 		}
@@ -739,6 +712,12 @@ rx_processing_done:
 		status |= BD_ENET_RX_EMPTY;
 		bdp->cbd_sc = status;
 
+#ifdef CONFIG_FEC_PTP
+		bdp->cbd_esc = BD_ENET_RX_INT;
+		bdp->cbd_prot = 0;
+		bdp->cbd_bdu = 0;
+#endif
+
 		/* Update BD pointer to next entry */
 		if (status & BD_ENET_RX_WRAP)
 			bdp = fep->rx_bd_base;
@@ -1178,6 +1157,10 @@ static int fec_enet_ioctl(struct net_device *ndev, struct ifreq *rq, int cmd)
 	if (!phydev)
 		return -ENODEV;
 
+#ifdef CONFIG_FEC_PTP
+	if (cmd == SIOCSHWTSTAMP)
+		return fec_ptp_ioctl(ndev, rq, cmd);
+#endif
 	return phy_mii_ioctl(phydev, rq, cmd);
 }
 
@@ -1224,6 +1207,9 @@ static int fec_enet_alloc_buffers(struct net_device *ndev)
 		bdp->cbd_bufaddr = dma_map_single(&fep->pdev->dev, skb->data,
 				FEC_ENET_RX_FRSIZE, DMA_FROM_DEVICE);
 		bdp->cbd_sc = BD_ENET_RX_EMPTY;
+#ifdef CONFIG_FEC_PTP
+		bdp->cbd_esc = BD_ENET_RX_INT;
+#endif
 		bdp++;
 	}
 
@@ -1237,6 +1223,10 @@ static int fec_enet_alloc_buffers(struct net_device *ndev)
 
 		bdp->cbd_sc = 0;
 		bdp->cbd_bufaddr = 0;
+
+#ifdef CONFIG_FEC_PTP
+		bdp->cbd_esc = BD_ENET_RX_INT;
+#endif
 		bdp++;
 	}
 
@@ -1494,7 +1484,7 @@ static int fec_enet_init(struct net_device *ndev)
 }
 
 #ifdef CONFIG_OF
-static int __devinit fec_get_phy_mode_dt(struct platform_device *pdev)
+static int fec_get_phy_mode_dt(struct platform_device *pdev)
 {
 	struct device_node *np = pdev->dev.of_node;
 
@@ -1504,7 +1494,7 @@ static int __devinit fec_get_phy_mode_dt(struct platform_device *pdev)
 	return -ENODEV;
 }
 
-static void __devinit fec_reset_phy(struct platform_device *pdev)
+static void fec_reset_phy(struct platform_device *pdev)
 {
 	int err, phy_reset;
 	int msec = 1;
@@ -1543,7 +1533,7 @@ static inline void fec_reset_phy(struct platform_device *pdev)
 }
 #endif /* CONFIG_OF */
 
-static int __devinit
+static int
 fec_probe(struct platform_device *pdev)
 {
 	struct fec_enet_private *fep;
@@ -1638,9 +1628,19 @@ fec_probe(struct platform_device *pdev)
 		goto failed_clk;
 	}
 
+#ifdef CONFIG_FEC_PTP
+	fep->clk_ptp = devm_clk_get(&pdev->dev, "ptp");
+	if (IS_ERR(fep->clk_ptp)) {
+		ret = PTR_ERR(fep->clk_ptp);
+		goto failed_clk;
+	}
+#endif
+
 	clk_prepare_enable(fep->clk_ahb);
 	clk_prepare_enable(fep->clk_ipg);
-
+#ifdef CONFIG_FEC_PTP
+	clk_prepare_enable(fep->clk_ptp);
+#endif
 	reg_phy = devm_regulator_get(&pdev->dev, "phy");
 	if (!IS_ERR(reg_phy)) {
 		ret = regulator_enable(reg_phy);
@@ -1668,6 +1668,10 @@ fec_probe(struct platform_device *pdev)
 	if (ret)
 		goto failed_register;
 
+#ifdef CONFIG_FEC_PTP
+	fec_ptp_init(ndev, pdev);
+#endif
+
 	return 0;
 
 failed_register:
@@ -1677,6 +1681,9 @@ failed_init:
 failed_regulator:
 	clk_disable_unprepare(fep->clk_ahb);
 	clk_disable_unprepare(fep->clk_ipg);
+#ifdef CONFIG_FEC_PTP
+	clk_disable_unprepare(fep->clk_ptp);
+#endif
 failed_pin:
 failed_clk:
 	for (i = 0; i < FEC_IRQ_NUM; i++) {
@@ -1694,7 +1701,7 @@ failed_alloc_etherdev:
 	return ret;
 }
 
-static int __devexit
+static int
 fec_drv_remove(struct platform_device *pdev)
 {
 	struct net_device *ndev = platform_get_drvdata(pdev);
@@ -1709,6 +1716,12 @@ fec_drv_remove(struct platform_device *pdev)
 		if (irq > 0)
 			free_irq(irq, ndev);
 	}
+#ifdef CONFIG_FEC_PTP
+	del_timer_sync(&fep->time_keep);
+	clk_disable_unprepare(fep->clk_ptp);
+	if (fep->ptp_clock)
+		ptp_clock_unregister(fep->ptp_clock);
+#endif
 	clk_disable_unprepare(fep->clk_ahb);
 	clk_disable_unprepare(fep->clk_ipg);
 	iounmap(fep->hwp);
@@ -1777,7 +1790,7 @@ static struct platform_driver fec_driver = {
 	},
 	.id_table = fec_devtype,
 	.probe	= fec_probe,
-	.remove	= __devexit_p(fec_drv_remove),
+	.remove	= fec_drv_remove,
 };
 
 module_platform_driver(fec_driver);
diff --git a/drivers/net/ethernet/freescale/fec.h b/drivers/net/ethernet/freescale/fec.h
index 8408c627b195..c5a3bc1475c7 100644
--- a/drivers/net/ethernet/freescale/fec.h
+++ b/drivers/net/ethernet/freescale/fec.h
@@ -13,6 +13,12 @@
 #define	FEC_H
 /****************************************************************************/
 
+#ifdef CONFIG_FEC_PTP
+#include <linux/clocksource.h>
+#include <linux/net_tstamp.h>
+#include <linux/ptp_clock_kernel.h>
+#endif
+
 #if defined(CONFIG_M523x) || defined(CONFIG_M527x) || defined(CONFIG_M528x) || \
     defined(CONFIG_M520x) || defined(CONFIG_M532x) || \
     defined(CONFIG_ARCH_MXC) || defined(CONFIG_SOC_IMX28)
@@ -88,6 +94,13 @@ struct bufdesc {
 	unsigned short cbd_datlen;	/* Data length */
 	unsigned short cbd_sc;	/* Control and status info */
 	unsigned long cbd_bufaddr;	/* Buffer address */
+#ifdef CONFIG_FEC_PTP
+	unsigned long cbd_esc;
+	unsigned long cbd_prot;
+	unsigned long cbd_bdu;
+	unsigned long ts;
+	unsigned short res0[4];
+#endif
 };
 #else
 struct bufdesc {
@@ -147,6 +160,112 @@ struct bufdesc {
 #define BD_ENET_TX_CSL          ((ushort)0x0001)
 #define BD_ENET_TX_STATS        ((ushort)0x03ff)        /* All status bits */
 
+/*enhanced buffer desciptor control/status used by Ethernet transmit*/
+#define BD_ENET_TX_INT          0x40000000
+#define BD_ENET_TX_TS           0x20000000
+
+
+/* This device has up to three irqs on some platforms */
+#define FEC_IRQ_NUM		3
+
+/* The number of Tx and Rx buffers.  These are allocated from the page
+ * pool.  The code may assume these are power of two, so it it best
+ * to keep them that size.
+ * We don't need to allocate pages for the transmitter.  We just use
+ * the skbuffer directly.
+ */
+
+#define FEC_ENET_RX_PAGES	8
+#define FEC_ENET_RX_FRSIZE	2048
+#define FEC_ENET_RX_FRPPG	(PAGE_SIZE / FEC_ENET_RX_FRSIZE)
+#define RX_RING_SIZE		(FEC_ENET_RX_FRPPG * FEC_ENET_RX_PAGES)
+#define FEC_ENET_TX_FRSIZE	2048
+#define FEC_ENET_TX_FRPPG	(PAGE_SIZE / FEC_ENET_TX_FRSIZE)
+#define TX_RING_SIZE		16	/* Must be power of two */
+#define TX_RING_MOD_MASK	15	/*   for this to work */
+
+#define BD_ENET_RX_INT          0x00800000
+#define BD_ENET_RX_PTP          ((ushort)0x0400)
+
+/* The FEC buffer descriptors track the ring buffers.  The rx_bd_base and
+ * tx_bd_base always point to the base of the buffer descriptors.  The
+ * cur_rx and cur_tx point to the currently available buffer.
+ * The dirty_tx tracks the current buffer that is being sent by the
+ * controller.  The cur_tx and dirty_tx are equal under both completely
+ * empty and completely full conditions.  The empty/ready indicator in
+ * the buffer descriptor determines the actual condition.
+ */
+struct fec_enet_private {
+	/* Hardware registers of the FEC device */
+	void __iomem *hwp;
+
+	struct net_device *netdev;
+
+	struct clk *clk_ipg;
+	struct clk *clk_ahb;
+#ifdef CONFIG_FEC_PTP
+	struct clk *clk_ptp;
+#endif
+
+	/* The saved address of a sent-in-place packet/buffer, for skfree(). */
+	unsigned char *tx_bounce[TX_RING_SIZE];
+	struct	sk_buff *tx_skbuff[TX_RING_SIZE];
+	struct	sk_buff *rx_skbuff[RX_RING_SIZE];
+	ushort	skb_cur;
+	ushort	skb_dirty;
+
+	/* CPM dual port RAM relative addresses */
+	dma_addr_t	bd_dma;
+	/* Address of Rx and Tx buffers */
+	struct bufdesc	*rx_bd_base;
+	struct bufdesc	*tx_bd_base;
+	/* The next free ring entry */
+	struct bufdesc	*cur_rx, *cur_tx;
+	/* The ring entries to be free()ed */
+	struct bufdesc	*dirty_tx;
+
+	uint	tx_full;
+	/* hold while accessing the HW like ringbuffer for tx/rx but not MAC */
+	spinlock_t hw_lock;
+
+	struct	platform_device *pdev;
+
+	int	opened;
+	int	dev_id;
+
+	/* Phylib and MDIO interface */
+	struct	mii_bus *mii_bus;
+	struct	phy_device *phy_dev;
+	int	mii_timeout;
+	uint	phy_speed;
+	phy_interface_t	phy_interface;
+	int	link;
+	int	full_duplex;
+	struct	completion mdio_done;
+	int	irq[FEC_IRQ_NUM];
+
+#ifdef CONFIG_FEC_PTP
+	struct ptp_clock *ptp_clock;
+	struct ptp_clock_info ptp_caps;
+	unsigned long last_overflow_check;
+	spinlock_t tmreg_lock;
+	struct cyclecounter cc;
+	struct timecounter tc;
+	int rx_hwtstamp_filter;
+	u32 base_incval;
+	u32 cycle_speed;
+	int hwts_rx_en;
+	int hwts_tx_en;
+	struct timer_list time_keep;
+#endif
+
+};
+
+#ifdef CONFIG_FEC_PTP
+void fec_ptp_init(struct net_device *ndev, struct platform_device *pdev);
+void fec_ptp_start_cyclecounter(struct net_device *ndev);
+int fec_ptp_ioctl(struct net_device *ndev, struct ifreq *ifr, int cmd);
+#endif
 
 /****************************************************************************/
 #endif /* FEC_H */
diff --git a/drivers/net/ethernet/freescale/fec_mpc52xx.c b/drivers/net/ethernet/freescale/fec_mpc52xx.c
index 2933d08b036e..817d081d2cd8 100644
--- a/drivers/net/ethernet/freescale/fec_mpc52xx.c
+++ b/drivers/net/ethernet/freescale/fec_mpc52xx.c
@@ -845,7 +845,7 @@ static const struct net_device_ops mpc52xx_fec_netdev_ops = {
 /* OF Driver                                                                */
 /* ======================================================================== */
 
-static int __devinit mpc52xx_fec_probe(struct platform_device *op)
+static int mpc52xx_fec_probe(struct platform_device *op)
 {
 	int rv;
 	struct net_device *ndev;
diff --git a/drivers/net/ethernet/freescale/fec_ptp.c b/drivers/net/ethernet/freescale/fec_ptp.c
new file mode 100644
index 000000000000..c40526c78c20
--- /dev/null
+++ b/drivers/net/ethernet/freescale/fec_ptp.c
@@ -0,0 +1,383 @@
+/*
+ * Fast Ethernet Controller (ENET) PTP driver for MX6x.
+ *
+ * Copyright (C) 2012 Freescale Semiconductor, Inc.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms and conditions of the GNU General Public License,
+ * version 2, as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
+ * more details.
+ *
+ * You should have received a copy of the GNU General Public License along with
+ * this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
+ */
+
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/string.h>
+#include <linux/ptrace.h>
+#include <linux/errno.h>
+#include <linux/ioport.h>
+#include <linux/slab.h>
+#include <linux/interrupt.h>
+#include <linux/pci.h>
+#include <linux/init.h>
+#include <linux/delay.h>
+#include <linux/netdevice.h>
+#include <linux/etherdevice.h>
+#include <linux/skbuff.h>
+#include <linux/spinlock.h>
+#include <linux/workqueue.h>
+#include <linux/bitops.h>
+#include <linux/io.h>
+#include <linux/irq.h>
+#include <linux/clk.h>
+#include <linux/platform_device.h>
+#include <linux/phy.h>
+#include <linux/fec.h>
+#include <linux/of.h>
+#include <linux/of_device.h>
+#include <linux/of_gpio.h>
+#include <linux/of_net.h>
+
+#include "fec.h"
+
+/* FEC 1588 register bits */
+#define FEC_T_CTRL_SLAVE                0x00002000
+#define FEC_T_CTRL_CAPTURE              0x00000800
+#define FEC_T_CTRL_RESTART              0x00000200
+#define FEC_T_CTRL_PERIOD_RST           0x00000030
+#define FEC_T_CTRL_PERIOD_EN		0x00000010
+#define FEC_T_CTRL_ENABLE               0x00000001
+
+#define FEC_T_INC_MASK                  0x0000007f
+#define FEC_T_INC_OFFSET                0
+#define FEC_T_INC_CORR_MASK             0x00007f00
+#define FEC_T_INC_CORR_OFFSET           8
+
+#define FEC_ATIME_CTRL		0x400
+#define FEC_ATIME		0x404
+#define FEC_ATIME_EVT_OFFSET	0x408
+#define FEC_ATIME_EVT_PERIOD	0x40c
+#define FEC_ATIME_CORR		0x410
+#define FEC_ATIME_INC		0x414
+#define FEC_TS_TIMESTAMP	0x418
+
+#define FEC_CC_MULT	(1 << 31)
+/**
+ * fec_ptp_read - read raw cycle counter (to be used by time counter)
+ * @cc: the cyclecounter structure
+ *
+ * this function reads the cyclecounter registers and is called by the
+ * cyclecounter structure used to construct a ns counter from the
+ * arbitrary fixed point registers
+ */
+static cycle_t fec_ptp_read(const struct cyclecounter *cc)
+{
+	struct fec_enet_private *fep =
+		container_of(cc, struct fec_enet_private, cc);
+	u32 tempval;
+
+	tempval = readl(fep->hwp + FEC_ATIME_CTRL);
+	tempval |= FEC_T_CTRL_CAPTURE;
+	writel(tempval, fep->hwp + FEC_ATIME_CTRL);
+
+	return readl(fep->hwp + FEC_ATIME);
+}
+
+/**
+ * fec_ptp_start_cyclecounter - create the cycle counter from hw
+ * @ndev: network device
+ *
+ * this function initializes the timecounter and cyclecounter
+ * structures for use in generated a ns counter from the arbitrary
+ * fixed point cycles registers in the hardware.
+ */
+void fec_ptp_start_cyclecounter(struct net_device *ndev)
+{
+	struct fec_enet_private *fep = netdev_priv(ndev);
+	unsigned long flags;
+	int inc;
+
+	inc = 1000000000 / clk_get_rate(fep->clk_ptp);
+
+	/* grab the ptp lock */
+	spin_lock_irqsave(&fep->tmreg_lock, flags);
+
+	/* 1ns counter */
+	writel(inc << FEC_T_INC_OFFSET, fep->hwp + FEC_ATIME_INC);
+
+	/* use free running count */
+	writel(0, fep->hwp + FEC_ATIME_EVT_PERIOD);
+
+	writel(FEC_T_CTRL_ENABLE, fep->hwp + FEC_ATIME_CTRL);
+
+	memset(&fep->cc, 0, sizeof(fep->cc));
+	fep->cc.read = fec_ptp_read;
+	fep->cc.mask = CLOCKSOURCE_MASK(32);
+	fep->cc.shift = 31;
+	fep->cc.mult = FEC_CC_MULT;
+
+	/* reset the ns time counter */
+	timecounter_init(&fep->tc, &fep->cc, ktime_to_ns(ktime_get_real()));
+
+	spin_unlock_irqrestore(&fep->tmreg_lock, flags);
+}
+
+/**
+ * fec_ptp_adjfreq - adjust ptp cycle frequency
+ * @ptp: the ptp clock structure
+ * @ppb: parts per billion adjustment from base
+ *
+ * Adjust the frequency of the ptp cycle counter by the
+ * indicated ppb from the base frequency.
+ *
+ * Because ENET hardware frequency adjust is complex,
+ * using software method to do that.
+ */
+static int fec_ptp_adjfreq(struct ptp_clock_info *ptp, s32 ppb)
+{
+	u64 diff;
+	unsigned long flags;
+	int neg_adj = 0;
+	u32 mult = FEC_CC_MULT;
+
+	struct fec_enet_private *fep =
+	    container_of(ptp, struct fec_enet_private, ptp_caps);
+
+	if (ppb < 0) {
+		ppb = -ppb;
+		neg_adj = 1;
+	}
+
+	diff = mult;
+	diff *= ppb;
+	diff = div_u64(diff, 1000000000ULL);
+
+	spin_lock_irqsave(&fep->tmreg_lock, flags);
+	/*
+	 * dummy read to set cycle_last in tc to now.
+	 * So use adjusted mult to calculate when next call
+	 * timercounter_read.
+	 */
+	timecounter_read(&fep->tc);
+
+	fep->cc.mult = neg_adj ? mult - diff : mult + diff;
+
+	spin_unlock_irqrestore(&fep->tmreg_lock, flags);
+
+	return 0;
+}
+
+/**
+ * fec_ptp_adjtime
+ * @ptp: the ptp clock structure
+ * @delta: offset to adjust the cycle counter by
+ *
+ * adjust the timer by resetting the timecounter structure.
+ */
+static int fec_ptp_adjtime(struct ptp_clock_info *ptp, s64 delta)
+{
+	struct fec_enet_private *fep =
+	    container_of(ptp, struct fec_enet_private, ptp_caps);
+	unsigned long flags;
+	u64 now;
+
+	spin_lock_irqsave(&fep->tmreg_lock, flags);
+
+	now = timecounter_read(&fep->tc);
+	now += delta;
+
+	/* reset the timecounter */
+	timecounter_init(&fep->tc, &fep->cc, now);
+
+	spin_unlock_irqrestore(&fep->tmreg_lock, flags);
+
+	return 0;
+}
+
+/**
+ * fec_ptp_gettime
+ * @ptp: the ptp clock structure
+ * @ts: timespec structure to hold the current time value
+ *
+ * read the timecounter and return the correct value on ns,
+ * after converting it into a struct timespec.
+ */
+static int fec_ptp_gettime(struct ptp_clock_info *ptp, struct timespec *ts)
+{
+	struct fec_enet_private *adapter =
+	    container_of(ptp, struct fec_enet_private, ptp_caps);
+	u64 ns;
+	u32 remainder;
+	unsigned long flags;
+
+	spin_lock_irqsave(&adapter->tmreg_lock, flags);
+	ns = timecounter_read(&adapter->tc);
+	spin_unlock_irqrestore(&adapter->tmreg_lock, flags);
+
+	ts->tv_sec = div_u64_rem(ns, 1000000000ULL, &remainder);
+	ts->tv_nsec = remainder;
+
+	return 0;
+}
+
+/**
+ * fec_ptp_settime
+ * @ptp: the ptp clock structure
+ * @ts: the timespec containing the new time for the cycle counter
+ *
+ * reset the timecounter to use a new base value instead of the kernel
+ * wall timer value.
+ */
+static int fec_ptp_settime(struct ptp_clock_info *ptp,
+			   const struct timespec *ts)
+{
+	struct fec_enet_private *fep =
+	    container_of(ptp, struct fec_enet_private, ptp_caps);
+
+	u64 ns;
+	unsigned long flags;
+
+	ns = ts->tv_sec * 1000000000ULL;
+	ns += ts->tv_nsec;
+
+	spin_lock_irqsave(&fep->tmreg_lock, flags);
+	timecounter_init(&fep->tc, &fep->cc, ns);
+	spin_unlock_irqrestore(&fep->tmreg_lock, flags);
+	return 0;
+}
+
+/**
+ * fec_ptp_enable
+ * @ptp: the ptp clock structure
+ * @rq: the requested feature to change
+ * @on: whether to enable or disable the feature
+ *
+ */
+static int fec_ptp_enable(struct ptp_clock_info *ptp,
+			  struct ptp_clock_request *rq, int on)
+{
+	return -EOPNOTSUPP;
+}
+
+/**
+ * fec_ptp_hwtstamp_ioctl - control hardware time stamping
+ * @ndev: pointer to net_device
+ * @ifreq: ioctl data
+ * @cmd: particular ioctl requested
+ */
+int fec_ptp_ioctl(struct net_device *ndev, struct ifreq *ifr, int cmd)
+{
+	struct fec_enet_private *fep = netdev_priv(ndev);
+
+	struct hwtstamp_config config;
+
+	if (copy_from_user(&config, ifr->ifr_data, sizeof(config)))
+		return -EFAULT;
+
+	/* reserved for future extensions */
+	if (config.flags)
+		return -EINVAL;
+
+	switch (config.tx_type) {
+	case HWTSTAMP_TX_OFF:
+		fep->hwts_tx_en = 0;
+		break;
+	case HWTSTAMP_TX_ON:
+		fep->hwts_tx_en = 1;
+		break;
+	default:
+		return -ERANGE;
+	}
+
+	switch (config.rx_filter) {
+	case HWTSTAMP_FILTER_NONE:
+		if (fep->hwts_rx_en)
+			fep->hwts_rx_en = 0;
+		config.rx_filter = HWTSTAMP_FILTER_NONE;
+		break;
+
+	default:
+		/*
+		 * register RXMTRL must be set in order to do V1 packets,
+		 * therefore it is not possible to time stamp both V1 Sync and
+		 * Delay_Req messages and hardware does not support
+		 * timestamping all packets => return error
+		 */
+		fep->hwts_rx_en = 1;
+		config.rx_filter = HWTSTAMP_FILTER_ALL;
+		break;
+	}
+
+	return copy_to_user(ifr->ifr_data, &config, sizeof(config)) ?
+	    -EFAULT : 0;
+}
+
+/**
+ * fec_time_keep - call timecounter_read every second to avoid timer overrun
+ *                 because ENET just support 32bit counter, will timeout in 4s
+ */
+static void fec_time_keep(unsigned long _data)
+{
+	struct fec_enet_private *fep = (struct fec_enet_private *)_data;
+	u64 ns;
+	unsigned long flags;
+
+	spin_lock_irqsave(&fep->tmreg_lock, flags);
+	ns = timecounter_read(&fep->tc);
+	spin_unlock_irqrestore(&fep->tmreg_lock, flags);
+
+	mod_timer(&fep->time_keep, jiffies + HZ);
+}
+
+/**
+ * fec_ptp_init
+ * @ndev: The FEC network adapter
+ *
+ * This function performs the required steps for enabling ptp
+ * support. If ptp support has already been loaded it simply calls the
+ * cyclecounter init routine and exits.
+ */
+
+void fec_ptp_init(struct net_device *ndev, struct platform_device *pdev)
+{
+	struct fec_enet_private *fep = netdev_priv(ndev);
+
+	fep->ptp_caps.owner = THIS_MODULE;
+	snprintf(fep->ptp_caps.name, 16, "fec ptp");
+
+	fep->ptp_caps.max_adj = 250000000;
+	fep->ptp_caps.n_alarm = 0;
+	fep->ptp_caps.n_ext_ts = 0;
+	fep->ptp_caps.n_per_out = 0;
+	fep->ptp_caps.pps = 0;
+	fep->ptp_caps.adjfreq = fec_ptp_adjfreq;
+	fep->ptp_caps.adjtime = fec_ptp_adjtime;
+	fep->ptp_caps.gettime = fec_ptp_gettime;
+	fep->ptp_caps.settime = fec_ptp_settime;
+	fep->ptp_caps.enable = fec_ptp_enable;
+
+	spin_lock_init(&fep->tmreg_lock);
+
+	fec_ptp_start_cyclecounter(ndev);
+
+	init_timer(&fep->time_keep);
+	fep->time_keep.data = (unsigned long)fep;
+	fep->time_keep.function = fec_time_keep;
+	fep->time_keep.expires = jiffies + HZ;
+	add_timer(&fep->time_keep);
+
+	fep->ptp_clock = ptp_clock_register(&fep->ptp_caps, &pdev->dev);
+	if (IS_ERR(fep->ptp_clock)) {
+		fep->ptp_clock = NULL;
+		pr_err("ptp_clock_register failed\n");
+	} else {
+		pr_info("registered PHC device on %s\n", ndev->name);
+	}
+}
diff --git a/drivers/net/ethernet/freescale/fs_enet/fs_enet-main.c b/drivers/net/ethernet/freescale/fs_enet/fs_enet-main.c
index 2b7633f766d9..e9879c5af7ba 100644
--- a/drivers/net/ethernet/freescale/fs_enet/fs_enet-main.c
+++ b/drivers/net/ethernet/freescale/fs_enet/fs_enet-main.c
@@ -1004,7 +1004,7 @@ static const struct net_device_ops fs_enet_netdev_ops = {
 };
 
 static struct of_device_id fs_enet_match[];
-static int __devinit fs_enet_probe(struct platform_device *ofdev)
+static int fs_enet_probe(struct platform_device *ofdev)
 {
 	const struct of_device_id *match;
 	struct net_device *ndev;
diff --git a/drivers/net/ethernet/freescale/fs_enet/mii-bitbang.c b/drivers/net/ethernet/freescale/fs_enet/mii-bitbang.c
index 151453309401..2bafbd37c247 100644
--- a/drivers/net/ethernet/freescale/fs_enet/mii-bitbang.c
+++ b/drivers/net/ethernet/freescale/fs_enet/mii-bitbang.c
@@ -108,8 +108,7 @@ static struct mdiobb_ops bb_ops = {
 	.get_mdio_data = mdio_read,
 };
 
-static int __devinit fs_mii_bitbang_init(struct mii_bus *bus,
-                                         struct device_node *np)
+static int fs_mii_bitbang_init(struct mii_bus *bus, struct device_node *np)
 {
 	struct resource res;
 	const u32 *data;
@@ -150,7 +149,7 @@ static int __devinit fs_mii_bitbang_init(struct mii_bus *bus,
 	return 0;
 }
 
-static int __devinit fs_enet_mdio_probe(struct platform_device *ofdev)
+static int fs_enet_mdio_probe(struct platform_device *ofdev)
 {
 	struct mii_bus *new_bus;
 	struct bb_info *bitbang;
diff --git a/drivers/net/ethernet/freescale/fs_enet/mii-fec.c b/drivers/net/ethernet/freescale/fs_enet/mii-fec.c
index cdf702a59485..18e8ef203736 100644
--- a/drivers/net/ethernet/freescale/fs_enet/mii-fec.c
+++ b/drivers/net/ethernet/freescale/fs_enet/mii-fec.c
@@ -102,7 +102,7 @@ static int fs_enet_fec_mii_reset(struct mii_bus *bus)
 }
 
 static struct of_device_id fs_enet_mdio_fec_match[];
-static int __devinit fs_enet_mdio_probe(struct platform_device *ofdev)
+static int fs_enet_mdio_probe(struct platform_device *ofdev)
 {
 	const struct of_device_id *match;
 	struct resource res;
diff --git a/drivers/net/ethernet/freescale/gianfar.c b/drivers/net/ethernet/freescale/gianfar.c
index 19ac096cb07b..bffb2edd6858 100644
--- a/drivers/net/ethernet/freescale/gianfar.c
+++ b/drivers/net/ethernet/freescale/gianfar.c
@@ -210,7 +210,7 @@ static int gfar_init_bds(struct net_device *ndev)
 				skb = gfar_new_skb(ndev);
 				if (!skb) {
 					netdev_err(ndev, "Can't allocate RX buffers\n");
-					goto err_rxalloc_fail;
+					return -ENOMEM;
 				}
 				rx_queue->rx_skbuff[j] = skb;
 
@@ -223,10 +223,6 @@ static int gfar_init_bds(struct net_device *ndev)
 	}
 
 	return 0;
-
-err_rxalloc_fail:
-	free_skb_resources(priv);
-	return -ENOMEM;
 }
 
 static int gfar_alloc_skb_resources(struct net_device *ndev)
@@ -1359,7 +1355,11 @@ static int gfar_restore(struct device *dev)
 		return 0;
 	}
 
-	gfar_init_bds(ndev);
+	if (gfar_init_bds(ndev)) {
+		free_skb_resources(priv);
+		return -ENOMEM;
+	}
+
 	init_registers(ndev);
 	gfar_set_mac_address(ndev);
 	gfar_init_mac(ndev);
@@ -1712,6 +1712,7 @@ static void free_skb_tx_queue(struct gfar_priv_tx_q *tx_queue)
 		tx_queue->tx_skbuff[i] = NULL;
 	}
 	kfree(tx_queue->tx_skbuff);
+	tx_queue->tx_skbuff = NULL;
 }
 
 static void free_skb_rx_queue(struct gfar_priv_rx_q *rx_queue)
@@ -1735,6 +1736,7 @@ static void free_skb_rx_queue(struct gfar_priv_rx_q *rx_queue)
 		rxbdp++;
 	}
 	kfree(rx_queue->rx_skbuff);
+	rx_queue->rx_skbuff = NULL;
 }
 
 /* If there are any tx skbs or rx skbs still around, free them.
diff --git a/drivers/net/ethernet/freescale/xgmac_mdio.c b/drivers/net/ethernet/freescale/xgmac_mdio.c
index 1afb5ea2a984..418068b941b1 100644
--- a/drivers/net/ethernet/freescale/xgmac_mdio.c
+++ b/drivers/net/ethernet/freescale/xgmac_mdio.c
@@ -189,7 +189,7 @@ static int xgmac_mdio_reset(struct mii_bus *bus)
 	return ret;
 }
 
-static int __devinit xgmac_mdio_probe(struct platform_device *pdev)
+static int xgmac_mdio_probe(struct platform_device *pdev)
 {
 	struct device_node *np = pdev->dev.of_node;
 	struct mii_bus *bus;
@@ -240,7 +240,7 @@ err_ioremap:
 	return ret;
 }
 
-static int __devexit xgmac_mdio_remove(struct platform_device *pdev)
+static int xgmac_mdio_remove(struct platform_device *pdev)
 {
 	struct mii_bus *bus = dev_get_drvdata(&pdev->dev);