davinci*/tlan/cpmac: Move the Texas Instruments (TI) drivers

Move the Texas Instruments drivers to drivers/net/ethernet/ti/ and
make the necessary Kconfig and Makefile changes.

CC: Sriram <srk@ti.com>
CC: Vinay Hegde <vinay.hegde@ti.com>
CC: Cyril Chemparathy <cyril@ti.com>
CC: Samuel Chessman <chessman@tux.org>
CC: <torben.mathiasen@compaq.com>
CC: Eugene Konev <ejka@imfi.kspu.ru>
CC: Florian Fainelli <florian@openwrt.org>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>

1 files changed, 0 insertions, 2047 deletions

diff --git a/drivers/net/davinci_emac.c b/drivers/net/davinci_emac.c
deleted file mode 100644
index 3f451e4d836..00000000000
--- a/drivers/net/davinci_emac.c
+++ /dev/null
@@ -1,2047 +0,0 @@
-/*
- * DaVinci Ethernet Medium Access Controller
- *
- * DaVinci EMAC is based upon CPPI 3.0 TI DMA engine
- *
- * Copyright (C) 2009 Texas Instruments.
- *
- * ---------------------------------------------------------------------------
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that 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., 675 Mass Ave, Cambridge, MA 02139, USA.
- * ---------------------------------------------------------------------------
- * History:
- * 0-5 A number of folks worked on this driver in bits and pieces but the major
- *     contribution came from Suraj Iyer and Anant Gole
- * 6.0 Anant Gole - rewrote the driver as per Linux conventions
- * 6.1 Chaithrika U S - added support for Gigabit and RMII features,
- *     PHY layer usage
- */
-
-#include <linux/module.h>
-#include <linux/kernel.h>
-#include <linux/sched.h>
-#include <linux/string.h>
-#include <linux/timer.h>
-#include <linux/errno.h>
-#include <linux/in.h>
-#include <linux/ioport.h>
-#include <linux/slab.h>
-#include <linux/mm.h>
-#include <linux/interrupt.h>
-#include <linux/init.h>
-#include <linux/netdevice.h>
-#include <linux/etherdevice.h>
-#include <linux/skbuff.h>
-#include <linux/ethtool.h>
-#include <linux/highmem.h>
-#include <linux/proc_fs.h>
-#include <linux/ctype.h>
-#include <linux/spinlock.h>
-#include <linux/dma-mapping.h>
-#include <linux/clk.h>
-#include <linux/platform_device.h>
-#include <linux/semaphore.h>
-#include <linux/phy.h>
-#include <linux/bitops.h>
-#include <linux/io.h>
-#include <linux/uaccess.h>
-#include <linux/davinci_emac.h>
-
-#include <asm/irq.h>
-#include <asm/page.h>
-
-#include "davinci_cpdma.h"
-
-static int debug_level;
-module_param(debug_level, int, 0);
-MODULE_PARM_DESC(debug_level, "DaVinci EMAC debug level (NETIF_MSG bits)");
-
-/* Netif debug messages possible */
-#define DAVINCI_EMAC_DEBUG	(NETIF_MSG_DRV | \
-				NETIF_MSG_PROBE | \
-				NETIF_MSG_LINK | \
-				NETIF_MSG_TIMER | \
-				NETIF_MSG_IFDOWN | \
-				NETIF_MSG_IFUP | \
-				NETIF_MSG_RX_ERR | \
-				NETIF_MSG_TX_ERR | \
-				NETIF_MSG_TX_QUEUED | \
-				NETIF_MSG_INTR | \
-				NETIF_MSG_TX_DONE | \
-				NETIF_MSG_RX_STATUS | \
-				NETIF_MSG_PKTDATA | \
-				NETIF_MSG_HW | \
-				NETIF_MSG_WOL)
-
-/* version info */
-#define EMAC_MAJOR_VERSION	6
-#define EMAC_MINOR_VERSION	1
-#define EMAC_MODULE_VERSION	"6.1"
-MODULE_VERSION(EMAC_MODULE_VERSION);
-static const char emac_version_string[] = "TI DaVinci EMAC Linux v6.1";
-
-/* Configuration items */
-#define EMAC_DEF_PASS_CRC		(0) /* Do not pass CRC up to frames */
-#define EMAC_DEF_QOS_EN			(0) /* EMAC proprietary QoS disabled */
-#define EMAC_DEF_NO_BUFF_CHAIN		(0) /* No buffer chain */
-#define EMAC_DEF_MACCTRL_FRAME_EN	(0) /* Discard Maccontrol frames */
-#define EMAC_DEF_SHORT_FRAME_EN		(0) /* Discard short frames */
-#define EMAC_DEF_ERROR_FRAME_EN		(0) /* Discard error frames */
-#define EMAC_DEF_PROM_EN		(0) /* Promiscuous disabled */
-#define EMAC_DEF_PROM_CH		(0) /* Promiscuous channel is 0 */
-#define EMAC_DEF_BCAST_EN		(1) /* Broadcast enabled */
-#define EMAC_DEF_BCAST_CH		(0) /* Broadcast channel is 0 */
-#define EMAC_DEF_MCAST_EN		(1) /* Multicast enabled */
-#define EMAC_DEF_MCAST_CH		(0) /* Multicast channel is 0 */
-
-#define EMAC_DEF_TXPRIO_FIXED		(1) /* TX Priority is fixed */
-#define EMAC_DEF_TXPACING_EN		(0) /* TX pacing NOT supported*/
-
-#define EMAC_DEF_BUFFER_OFFSET		(0) /* Buffer offset to DMA (future) */
-#define EMAC_DEF_MIN_ETHPKTSIZE		(60) /* Minimum ethernet pkt size */
-#define EMAC_DEF_MAX_FRAME_SIZE		(1500 + 14 + 4 + 4)
-#define EMAC_DEF_TX_CH			(0) /* Default 0th channel */
-#define EMAC_DEF_RX_CH			(0) /* Default 0th channel */
-#define EMAC_DEF_RX_NUM_DESC		(128)
-#define EMAC_DEF_MAX_TX_CH		(1) /* Max TX channels configured */
-#define EMAC_DEF_MAX_RX_CH		(1) /* Max RX channels configured */
-#define EMAC_POLL_WEIGHT		(64) /* Default NAPI poll weight */
-
-/* Buffer descriptor parameters */
-#define EMAC_DEF_TX_MAX_SERVICE		(32) /* TX max service BD's */
-#define EMAC_DEF_RX_MAX_SERVICE		(64) /* should = netdev->weight */
-
-/* EMAC register related defines */
-#define EMAC_ALL_MULTI_REG_VALUE	(0xFFFFFFFF)
-#define EMAC_NUM_MULTICAST_BITS		(64)
-#define EMAC_TX_CONTROL_TX_ENABLE_VAL	(0x1)
-#define EMAC_RX_CONTROL_RX_ENABLE_VAL	(0x1)
-#define EMAC_MAC_HOST_ERR_INTMASK_VAL	(0x2)
-#define EMAC_RX_UNICAST_CLEAR_ALL	(0xFF)
-#define EMAC_INT_MASK_CLEAR		(0xFF)
-
-/* RX MBP register bit positions */
-#define EMAC_RXMBP_PASSCRC_MASK		BIT(30)
-#define EMAC_RXMBP_QOSEN_MASK		BIT(29)
-#define EMAC_RXMBP_NOCHAIN_MASK		BIT(28)
-#define EMAC_RXMBP_CMFEN_MASK		BIT(24)
-#define EMAC_RXMBP_CSFEN_MASK		BIT(23)
-#define EMAC_RXMBP_CEFEN_MASK		BIT(22)
-#define EMAC_RXMBP_CAFEN_MASK		BIT(21)
-#define EMAC_RXMBP_PROMCH_SHIFT		(16)
-#define EMAC_RXMBP_PROMCH_MASK		(0x7 << 16)
-#define EMAC_RXMBP_BROADEN_MASK		BIT(13)
-#define EMAC_RXMBP_BROADCH_SHIFT	(8)
-#define EMAC_RXMBP_BROADCH_MASK		(0x7 << 8)
-#define EMAC_RXMBP_MULTIEN_MASK		BIT(5)
-#define EMAC_RXMBP_MULTICH_SHIFT	(0)
-#define EMAC_RXMBP_MULTICH_MASK		(0x7)
-#define EMAC_RXMBP_CHMASK		(0x7)
-
-/* EMAC register definitions/bit maps used */
-# define EMAC_MBP_RXPROMISC		(0x00200000)
-# define EMAC_MBP_PROMISCCH(ch)		(((ch) & 0x7) << 16)
-# define EMAC_MBP_RXBCAST		(0x00002000)
-# define EMAC_MBP_BCASTCHAN(ch)		(((ch) & 0x7) << 8)
-# define EMAC_MBP_RXMCAST		(0x00000020)
-# define EMAC_MBP_MCASTCHAN(ch)		((ch) & 0x7)
-
-/* EMAC mac_control register */
-#define EMAC_MACCONTROL_TXPTYPE		BIT(9)
-#define EMAC_MACCONTROL_TXPACEEN	BIT(6)
-#define EMAC_MACCONTROL_GMIIEN		BIT(5)
-#define EMAC_MACCONTROL_GIGABITEN	BIT(7)
-#define EMAC_MACCONTROL_FULLDUPLEXEN	BIT(0)
-#define EMAC_MACCONTROL_RMIISPEED_MASK	BIT(15)
-
-/* GIGABIT MODE related bits */
-#define EMAC_DM646X_MACCONTORL_GIG	BIT(7)
-#define EMAC_DM646X_MACCONTORL_GIGFORCE	BIT(17)
-
-/* EMAC mac_status register */
-#define EMAC_MACSTATUS_TXERRCODE_MASK	(0xF00000)
-#define EMAC_MACSTATUS_TXERRCODE_SHIFT	(20)
-#define EMAC_MACSTATUS_TXERRCH_MASK	(0x7)
-#define EMAC_MACSTATUS_TXERRCH_SHIFT	(16)
-#define EMAC_MACSTATUS_RXERRCODE_MASK	(0xF000)
-#define EMAC_MACSTATUS_RXERRCODE_SHIFT	(12)
-#define EMAC_MACSTATUS_RXERRCH_MASK	(0x7)
-#define EMAC_MACSTATUS_RXERRCH_SHIFT	(8)
-
-/* EMAC RX register masks */
-#define EMAC_RX_MAX_LEN_MASK		(0xFFFF)
-#define EMAC_RX_BUFFER_OFFSET_MASK	(0xFFFF)
-
-/* MAC_IN_VECTOR (0x180) register bit fields */
-#define EMAC_DM644X_MAC_IN_VECTOR_HOST_INT	BIT(17)
-#define EMAC_DM644X_MAC_IN_VECTOR_STATPEND_INT	BIT(16)
-#define EMAC_DM644X_MAC_IN_VECTOR_RX_INT_VEC	BIT(8)
-#define EMAC_DM644X_MAC_IN_VECTOR_TX_INT_VEC	BIT(0)
-
-/** NOTE:: For DM646x the IN_VECTOR has changed */
-#define EMAC_DM646X_MAC_IN_VECTOR_RX_INT_VEC	BIT(EMAC_DEF_RX_CH)
-#define EMAC_DM646X_MAC_IN_VECTOR_TX_INT_VEC	BIT(16 + EMAC_DEF_TX_CH)
-#define EMAC_DM646X_MAC_IN_VECTOR_HOST_INT	BIT(26)
-#define EMAC_DM646X_MAC_IN_VECTOR_STATPEND_INT	BIT(27)
-
-/* CPPI bit positions */
-#define EMAC_CPPI_SOP_BIT		BIT(31)
-#define EMAC_CPPI_EOP_BIT		BIT(30)
-#define EMAC_CPPI_OWNERSHIP_BIT		BIT(29)
-#define EMAC_CPPI_EOQ_BIT		BIT(28)
-#define EMAC_CPPI_TEARDOWN_COMPLETE_BIT BIT(27)
-#define EMAC_CPPI_PASS_CRC_BIT		BIT(26)
-#define EMAC_RX_BD_BUF_SIZE		(0xFFFF)
-#define EMAC_BD_LENGTH_FOR_CACHE	(16) /* only CPPI bytes */
-#define EMAC_RX_BD_PKT_LENGTH_MASK	(0xFFFF)
-
-/* Max hardware defines */
-#define EMAC_MAX_TXRX_CHANNELS		 (8)  /* Max hardware channels */
-#define EMAC_DEF_MAX_MULTICAST_ADDRESSES (64) /* Max mcast addr's */
-
-/* EMAC Peripheral Device Register Memory Layout structure */
-#define EMAC_MACINVECTOR	0x90
-
-#define EMAC_DM646X_MACEOIVECTOR	0x94
-
-#define EMAC_MACINTSTATRAW	0xB0
-#define EMAC_MACINTSTATMASKED	0xB4
-#define EMAC_MACINTMASKSET	0xB8
-#define EMAC_MACINTMASKCLEAR	0xBC
-
-#define EMAC_RXMBPENABLE	0x100
-#define EMAC_RXUNICASTSET	0x104
-#define EMAC_RXUNICASTCLEAR	0x108
-#define EMAC_RXMAXLEN		0x10C
-#define EMAC_RXBUFFEROFFSET	0x110
-#define EMAC_RXFILTERLOWTHRESH	0x114
-
-#define EMAC_MACCONTROL		0x160
-#define EMAC_MACSTATUS		0x164
-#define EMAC_EMCONTROL		0x168
-#define EMAC_FIFOCONTROL	0x16C
-#define EMAC_MACCONFIG		0x170
-#define EMAC_SOFTRESET		0x174
-#define EMAC_MACSRCADDRLO	0x1D0
-#define EMAC_MACSRCADDRHI	0x1D4
-#define EMAC_MACHASH1		0x1D8
-#define EMAC_MACHASH2		0x1DC
-#define EMAC_MACADDRLO		0x500
-#define EMAC_MACADDRHI		0x504
-#define EMAC_MACINDEX		0x508
-
-/* EMAC statistics registers */
-#define EMAC_RXGOODFRAMES	0x200
-#define EMAC_RXBCASTFRAMES	0x204
-#define EMAC_RXMCASTFRAMES	0x208
-#define EMAC_RXPAUSEFRAMES	0x20C
-#define EMAC_RXCRCERRORS	0x210
-#define EMAC_RXALIGNCODEERRORS	0x214
-#define EMAC_RXOVERSIZED	0x218
-#define EMAC_RXJABBER		0x21C
-#define EMAC_RXUNDERSIZED	0x220
-#define EMAC_RXFRAGMENTS	0x224
-#define EMAC_RXFILTERED		0x228
-#define EMAC_RXQOSFILTERED	0x22C
-#define EMAC_RXOCTETS		0x230
-#define EMAC_TXGOODFRAMES	0x234
-#define EMAC_TXBCASTFRAMES	0x238
-#define EMAC_TXMCASTFRAMES	0x23C
-#define EMAC_TXPAUSEFRAMES	0x240
-#define EMAC_TXDEFERRED		0x244
-#define EMAC_TXCOLLISION	0x248
-#define EMAC_TXSINGLECOLL	0x24C
-#define EMAC_TXMULTICOLL	0x250
-#define EMAC_TXEXCESSIVECOLL	0x254
-#define EMAC_TXLATECOLL		0x258
-#define EMAC_TXUNDERRUN		0x25C
-#define EMAC_TXCARRIERSENSE	0x260
-#define EMAC_TXOCTETS		0x264
-#define EMAC_NETOCTETS		0x280
-#define EMAC_RXSOFOVERRUNS	0x284
-#define EMAC_RXMOFOVERRUNS	0x288
-#define EMAC_RXDMAOVERRUNS	0x28C
-
-/* EMAC DM644x control registers */
-#define EMAC_CTRL_EWCTL		(0x4)
-#define EMAC_CTRL_EWINTTCNT	(0x8)
-
-/* EMAC DM644x control module masks */
-#define EMAC_DM644X_EWINTCNT_MASK	0x1FFFF
-#define EMAC_DM644X_INTMIN_INTVL	0x1
-#define EMAC_DM644X_INTMAX_INTVL	(EMAC_DM644X_EWINTCNT_MASK)
-
-/* EMAC DM646X control module registers */
-#define EMAC_DM646X_CMINTCTRL	0x0C
-#define EMAC_DM646X_CMRXINTEN	0x14
-#define EMAC_DM646X_CMTXINTEN	0x18
-#define EMAC_DM646X_CMRXINTMAX	0x70
-#define EMAC_DM646X_CMTXINTMAX	0x74
-
-/* EMAC DM646X control module masks */
-#define EMAC_DM646X_INTPACEEN		(0x3 << 16)
-#define EMAC_DM646X_INTPRESCALE_MASK	(0x7FF << 0)
-#define EMAC_DM646X_CMINTMAX_CNT	63
-#define EMAC_DM646X_CMINTMIN_CNT	2
-#define EMAC_DM646X_CMINTMAX_INTVL	(1000 / EMAC_DM646X_CMINTMIN_CNT)
-#define EMAC_DM646X_CMINTMIN_INTVL	((1000 / EMAC_DM646X_CMINTMAX_CNT) + 1)
-
-
-/* EMAC EOI codes for C0 */
-#define EMAC_DM646X_MAC_EOI_C0_RXEN	(0x01)
-#define EMAC_DM646X_MAC_EOI_C0_TXEN	(0x02)
-
-/* EMAC Stats Clear Mask */
-#define EMAC_STATS_CLR_MASK    (0xFFFFFFFF)
-
-/* emac_priv: EMAC private data structure
- *
- * EMAC adapter private data structure
- */
-struct emac_priv {
-	u32 msg_enable;
-	struct net_device *ndev;
-	struct platform_device *pdev;
-	struct napi_struct napi;
-	char mac_addr[6];
-	void __iomem *remap_addr;
-	u32 emac_base_phys;
-	void __iomem *emac_base;
-	void __iomem *ctrl_base;
-	struct cpdma_ctlr *dma;
-	struct cpdma_chan *txchan;
-	struct cpdma_chan *rxchan;
-	u32 link; /* 1=link on, 0=link off */
-	u32 speed; /* 0=Auto Neg, 1=No PHY, 10,100, 1000 - mbps */
-	u32 duplex; /* Link duplex: 0=Half, 1=Full */
-	u32 rx_buf_size;
-	u32 isr_count;
-	u32 coal_intvl;
-	u32 bus_freq_mhz;
-	u8 rmii_en;
-	u8 version;
-	u32 mac_hash1;
-	u32 mac_hash2;
-	u32 multicast_hash_cnt[EMAC_NUM_MULTICAST_BITS];
-	u32 rx_addr_type;
-	const char *phy_id;
-	struct phy_device *phydev;
-	spinlock_t lock;
-	/*platform specific members*/
-	void (*int_enable) (void);
-	void (*int_disable) (void);
-};
-
-/* clock frequency for EMAC */
-static struct clk *emac_clk;
-static unsigned long emac_bus_frequency;
-
-/* EMAC TX Host Error description strings */
-static char *emac_txhost_errcodes[16] = {
-	"No error", "SOP error", "Ownership bit not set in SOP buffer",
-	"Zero Next Buffer Descriptor Pointer Without EOP",
-	"Zero Buffer Pointer", "Zero Buffer Length", "Packet Length Error",
-	"Reserved", "Reserved", "Reserved", "Reserved", "Reserved",
-	"Reserved", "Reserved", "Reserved", "Reserved"
-};
-
-/* EMAC RX Host Error description strings */
-static char *emac_rxhost_errcodes[16] = {
-	"No error", "Reserved", "Ownership bit not set in input buffer",
-	"Reserved", "Zero Buffer Pointer", "Reserved", "Reserved",
-	"Reserved", "Reserved", "Reserved", "Reserved", "Reserved",
-	"Reserved", "Reserved", "Reserved", "Reserved"
-};
-
-/* Helper macros */
-#define emac_read(reg)		  ioread32(priv->emac_base + (reg))
-#define emac_write(reg, val)      iowrite32(val, priv->emac_base + (reg))
-
-#define emac_ctrl_read(reg)	  ioread32((priv->ctrl_base + (reg)))
-#define emac_ctrl_write(reg, val) iowrite32(val, (priv->ctrl_base + (reg)))
-
-/**
- * emac_dump_regs: Dump important EMAC registers to debug terminal
- * @priv: The DaVinci EMAC private adapter structure
- *
- * Executes ethtool set cmd & sets phy mode
- *
- */
-static void emac_dump_regs(struct emac_priv *priv)
-{
-	struct device *emac_dev = &priv->ndev->dev;
-
-	/* Print important registers in EMAC */
-	dev_info(emac_dev, "EMAC Basic registers\n");
-	if (priv->version == EMAC_VERSION_1) {
-		dev_info(emac_dev, "EMAC: EWCTL: %08X, EWINTTCNT: %08X\n",
-			emac_ctrl_read(EMAC_CTRL_EWCTL),
-			emac_ctrl_read(EMAC_CTRL_EWINTTCNT));
-	}
-	dev_info(emac_dev, "EMAC: EmuControl:%08X, FifoControl: %08X\n",
-		emac_read(EMAC_EMCONTROL), emac_read(EMAC_FIFOCONTROL));
-	dev_info(emac_dev, "EMAC: MBPEnable:%08X, RXUnicastSet: %08X, "\
-		"RXMaxLen=%08X\n", emac_read(EMAC_RXMBPENABLE),
-		emac_read(EMAC_RXUNICASTSET), emac_read(EMAC_RXMAXLEN));
-	dev_info(emac_dev, "EMAC: MacControl:%08X, MacStatus: %08X, "\
-		"MacConfig=%08X\n", emac_read(EMAC_MACCONTROL),
-		emac_read(EMAC_MACSTATUS), emac_read(EMAC_MACCONFIG));
-	dev_info(emac_dev, "EMAC Statistics\n");
-	dev_info(emac_dev, "EMAC: rx_good_frames:%d\n",
-		emac_read(EMAC_RXGOODFRAMES));
-	dev_info(emac_dev, "EMAC: rx_broadcast_frames:%d\n",
-		emac_read(EMAC_RXBCASTFRAMES));
-	dev_info(emac_dev, "EMAC: rx_multicast_frames:%d\n",
-		emac_read(EMAC_RXMCASTFRAMES));
-	dev_info(emac_dev, "EMAC: rx_pause_frames:%d\n",
-		emac_read(EMAC_RXPAUSEFRAMES));
-	dev_info(emac_dev, "EMAC: rx_crcerrors:%d\n",
-		emac_read(EMAC_RXCRCERRORS));
-	dev_info(emac_dev, "EMAC: rx_align_code_errors:%d\n",
-		emac_read(EMAC_RXALIGNCODEERRORS));
-	dev_info(emac_dev, "EMAC: rx_oversized_frames:%d\n",
-		emac_read(EMAC_RXOVERSIZED));
-	dev_info(emac_dev, "EMAC: rx_jabber_frames:%d\n",
-		emac_read(EMAC_RXJABBER));
-	dev_info(emac_dev, "EMAC: rx_undersized_frames:%d\n",
-		emac_read(EMAC_RXUNDERSIZED));
-	dev_info(emac_dev, "EMAC: rx_fragments:%d\n",
-		emac_read(EMAC_RXFRAGMENTS));
-	dev_info(emac_dev, "EMAC: rx_filtered_frames:%d\n",
-		emac_read(EMAC_RXFILTERED));
-	dev_info(emac_dev, "EMAC: rx_qos_filtered_frames:%d\n",
-		emac_read(EMAC_RXQOSFILTERED));
-	dev_info(emac_dev, "EMAC: rx_octets:%d\n",
-		emac_read(EMAC_RXOCTETS));
-	dev_info(emac_dev, "EMAC: tx_goodframes:%d\n",
-		emac_read(EMAC_TXGOODFRAMES));
-	dev_info(emac_dev, "EMAC: tx_bcastframes:%d\n",
-		emac_read(EMAC_TXBCASTFRAMES));
-	dev_info(emac_dev, "EMAC: tx_mcastframes:%d\n",
-		emac_read(EMAC_TXMCASTFRAMES));
-	dev_info(emac_dev, "EMAC: tx_pause_frames:%d\n",
-		emac_read(EMAC_TXPAUSEFRAMES));
-	dev_info(emac_dev, "EMAC: tx_deferred_frames:%d\n",
-		emac_read(EMAC_TXDEFERRED));
-	dev_info(emac_dev, "EMAC: tx_collision_frames:%d\n",
-		emac_read(EMAC_TXCOLLISION));
-	dev_info(emac_dev, "EMAC: tx_single_coll_frames:%d\n",
-		emac_read(EMAC_TXSINGLECOLL));
-	dev_info(emac_dev, "EMAC: tx_mult_coll_frames:%d\n",
-		emac_read(EMAC_TXMULTICOLL));
-	dev_info(emac_dev, "EMAC: tx_excessive_collisions:%d\n",
-		emac_read(EMAC_TXEXCESSIVECOLL));
-	dev_info(emac_dev, "EMAC: tx_late_collisions:%d\n",
-		emac_read(EMAC_TXLATECOLL));
-	dev_info(emac_dev, "EMAC: tx_underrun:%d\n",
-		emac_read(EMAC_TXUNDERRUN));
-	dev_info(emac_dev, "EMAC: tx_carrier_sense_errors:%d\n",
-		emac_read(EMAC_TXCARRIERSENSE));
-	dev_info(emac_dev, "EMAC: tx_octets:%d\n",
-		emac_read(EMAC_TXOCTETS));
-	dev_info(emac_dev, "EMAC: net_octets:%d\n",
-		emac_read(EMAC_NETOCTETS));
-	dev_info(emac_dev, "EMAC: rx_sof_overruns:%d\n",
-		emac_read(EMAC_RXSOFOVERRUNS));
-	dev_info(emac_dev, "EMAC: rx_mof_overruns:%d\n",
-		emac_read(EMAC_RXMOFOVERRUNS));
-	dev_info(emac_dev, "EMAC: rx_dma_overruns:%d\n",
-		emac_read(EMAC_RXDMAOVERRUNS));
-
-	cpdma_ctlr_dump(priv->dma);
-}
-
-/**
- * emac_get_drvinfo: Get EMAC driver information
- * @ndev: The DaVinci EMAC network adapter
- * @info: ethtool info structure containing name and version
- *
- * Returns EMAC driver information (name and version)
- *
- */
-static void emac_get_drvinfo(struct net_device *ndev,
-			     struct ethtool_drvinfo *info)
-{
-	strcpy(info->driver, emac_version_string);
-	strcpy(info->version, EMAC_MODULE_VERSION);
-}
-
-/**
- * emac_get_settings: Get EMAC settings
- * @ndev: The DaVinci EMAC network adapter
- * @ecmd: ethtool command
- *
- * Executes ethool get command
- *
- */
-static int emac_get_settings(struct net_device *ndev,
-			     struct ethtool_cmd *ecmd)
-{
-	struct emac_priv *priv = netdev_priv(ndev);
-	if (priv->phydev)
-		return phy_ethtool_gset(priv->phydev, ecmd);
-	else
-		return -EOPNOTSUPP;
-
-}
-
-/**
- * emac_set_settings: Set EMAC settings
- * @ndev: The DaVinci EMAC network adapter
- * @ecmd: ethtool command
- *
- * Executes ethool set command
- *
- */
-static int emac_set_settings(struct net_device *ndev, struct ethtool_cmd *ecmd)
-{
-	struct emac_priv *priv = netdev_priv(ndev);
-	if (priv->phydev)
-		return phy_ethtool_sset(priv->phydev, ecmd);
-	else
-		return -EOPNOTSUPP;
-
-}
-
-/**
- * emac_get_coalesce : Get interrupt coalesce settings for this device
- * @ndev : The DaVinci EMAC network adapter
- * @coal : ethtool coalesce settings structure
- *
- * Fetch the current interrupt coalesce settings
- *
- */
-static int emac_get_coalesce(struct net_device *ndev,
-				struct ethtool_coalesce *coal)
-{
-	struct emac_priv *priv = netdev_priv(ndev);
-
-	coal->rx_coalesce_usecs = priv->coal_intvl;
-	return 0;
-
-}
-
-/**
- * emac_set_coalesce : Set interrupt coalesce settings for this device
- * @ndev : The DaVinci EMAC network adapter
- * @coal : ethtool coalesce settings structure
- *
- * Set interrupt coalesce parameters
- *
- */
-static int emac_set_coalesce(struct net_device *ndev,
-				struct ethtool_coalesce *coal)
-{
-	struct emac_priv *priv = netdev_priv(ndev);
-	u32 int_ctrl, num_interrupts = 0;
-	u32 prescale = 0, addnl_dvdr = 1, coal_intvl = 0;
-
-	if (!coal->rx_coalesce_usecs)
-		return -EINVAL;
-
-	coal_intvl = coal->rx_coalesce_usecs;
-
-	switch (priv->version) {
-	case EMAC_VERSION_2:
-		int_ctrl =  emac_ctrl_read(EMAC_DM646X_CMINTCTRL);
-		prescale = priv->bus_freq_mhz * 4;
-
-		if (coal_intvl < EMAC_DM646X_CMINTMIN_INTVL)
-			coal_intvl = EMAC_DM646X_CMINTMIN_INTVL;
-
-		if (coal_intvl > EMAC_DM646X_CMINTMAX_INTVL) {
-			/*
-			 * Interrupt pacer works with 4us Pulse, we can
-			 * throttle further by dilating the 4us pulse.
-			 */
-			addnl_dvdr = EMAC_DM646X_INTPRESCALE_MASK / prescale;
-
-			if (addnl_dvdr > 1) {
-				prescale *= addnl_dvdr;
-				if (coal_intvl > (EMAC_DM646X_CMINTMAX_INTVL
-							* addnl_dvdr))
-					coal_intvl = (EMAC_DM646X_CMINTMAX_INTVL
-							* addnl_dvdr);
-			} else {
-				addnl_dvdr = 1;
-				coal_intvl = EMAC_DM646X_CMINTMAX_INTVL;
-			}
-		}
-
-		num_interrupts = (1000 * addnl_dvdr) / coal_intvl;
-
-		int_ctrl |= EMAC_DM646X_INTPACEEN;
-		int_ctrl &= (~EMAC_DM646X_INTPRESCALE_MASK);
-		int_ctrl |= (prescale & EMAC_DM646X_INTPRESCALE_MASK);
-		emac_ctrl_write(EMAC_DM646X_CMINTCTRL, int_ctrl);
-
-		emac_ctrl_write(EMAC_DM646X_CMRXINTMAX, num_interrupts);
-		emac_ctrl_write(EMAC_DM646X_CMTXINTMAX, num_interrupts);
-
-		break;
-	default:
-		int_ctrl = emac_ctrl_read(EMAC_CTRL_EWINTTCNT);
-		int_ctrl &= (~EMAC_DM644X_EWINTCNT_MASK);
-		prescale = coal_intvl * priv->bus_freq_mhz;
-		if (prescale > EMAC_DM644X_EWINTCNT_MASK) {
-			prescale = EMAC_DM644X_EWINTCNT_MASK;
-			coal_intvl = prescale / priv->bus_freq_mhz;
-		}
-		emac_ctrl_write(EMAC_CTRL_EWINTTCNT, (int_ctrl | prescale));
-
-		break;
-	}
-
-	printk(KERN_INFO"Set coalesce to %d usecs.\n", coal_intvl);
-	priv->coal_intvl = coal_intvl;
-
-	return 0;
-
-}
-
-
-/**
- * ethtool_ops: DaVinci EMAC Ethtool structure
- *
- * Ethtool support for EMAC adapter
- *
- */
-static const struct ethtool_ops ethtool_ops = {
-	.get_drvinfo = emac_get_drvinfo,
-	.get_settings = emac_get_settings,
-	.set_settings = emac_set_settings,
-	.get_link = ethtool_op_get_link,
-	.get_coalesce = emac_get_coalesce,
-	.set_coalesce =  emac_set_coalesce,
-};
-
-/**
- * emac_update_phystatus: Update Phy status
- * @priv: The DaVinci EMAC private adapter structure
- *
- * Updates phy status and takes action for network queue if required
- * based upon link status
- *
- */
-static void emac_update_phystatus(struct emac_priv *priv)
-{
-	u32 mac_control;
-	u32 new_duplex;
-	u32 cur_duplex;
-	struct net_device *ndev = priv->ndev;
-
-	mac_control = emac_read(EMAC_MACCONTROL);
-	cur_duplex = (mac_control & EMAC_MACCONTROL_FULLDUPLEXEN) ?
-			DUPLEX_FULL : DUPLEX_HALF;
-	if (priv->phydev)
-		new_duplex = priv->phydev->duplex;
-	else
-		new_duplex = DUPLEX_FULL;
-
-	/* We get called only if link has changed (speed/duplex/status) */
-	if ((priv->link) && (new_duplex != cur_duplex)) {
-		priv->duplex = new_duplex;
-		if (DUPLEX_FULL == priv->duplex)
-			mac_control |= (EMAC_MACCONTROL_FULLDUPLEXEN);
-		else
-			mac_control &= ~(EMAC_MACCONTROL_FULLDUPLEXEN);
-	}
-
-	if (priv->speed == SPEED_1000 && (priv->version == EMAC_VERSION_2)) {
-		mac_control = emac_read(EMAC_MACCONTROL);
-		mac_control |= (EMAC_DM646X_MACCONTORL_GIG |
-				EMAC_DM646X_MACCONTORL_GIGFORCE);
-	} else {
-		/* Clear the GIG bit and GIGFORCE bit */
-		mac_control &= ~(EMAC_DM646X_MACCONTORL_GIGFORCE |
-					EMAC_DM646X_MACCONTORL_GIG);
-
-		if (priv->rmii_en && (priv->speed == SPEED_100))
-			mac_control |= EMAC_MACCONTROL_RMIISPEED_MASK;
-		else
-			mac_control &= ~EMAC_MACCONTROL_RMIISPEED_MASK;
-	}
-
-	/* Update mac_control if changed */
-	emac_write(EMAC_MACCONTROL, mac_control);
-
-	if (priv->link) {
-		/* link ON */
-		if (!netif_carrier_ok(ndev))
-			netif_carrier_on(ndev);
-	/* reactivate the transmit queue if it is stopped */
-		if (netif_running(ndev) && netif_queue_stopped(ndev))
-			netif_wake_queue(ndev);
-	} else {
-		/* link OFF */
-		if (netif_carrier_ok(ndev))
-			netif_carrier_off(ndev);
-		if (!netif_queue_stopped(ndev))
-			netif_stop_queue(ndev);
-	}
-}
-
-/**
- * hash_get: Calculate hash value from mac address
- * @addr: mac address to delete from hash table
- *
- * Calculates hash value from mac address
- *
- */
-static u32 hash_get(u8 *addr)
-{
-	u32 hash;
-	u8 tmpval;
-	int cnt;
-	hash = 0;
-
-	for (cnt = 0; cnt < 2; cnt++) {
-		tmpval = *addr++;
-		hash ^= (tmpval >> 2) ^ (tmpval << 4);
-		tmpval = *addr++;
-		hash ^= (tmpval >> 4) ^ (tmpval << 2);
-		tmpval = *addr++;
-		hash ^= (tmpval >> 6) ^ (tmpval);
-	}
-
-	return hash & 0x3F;
-}
-
-/**
- * hash_add: Hash function to add mac addr from hash table
- * @priv: The DaVinci EMAC private adapter structure
- * mac_addr: mac address to delete from hash table
- *
- * Adds mac address to the internal hash table
- *
- */
-static int hash_add(struct emac_priv *priv, u8 *mac_addr)
-{
-	struct device *emac_dev = &priv->ndev->dev;
-	u32 rc = 0;
-	u32 hash_bit;
-	u32 hash_value = hash_get(mac_addr);
-
-	if (hash_value >= EMAC_NUM_MULTICAST_BITS) {
-		if (netif_msg_drv(priv)) {
-			dev_err(emac_dev, "DaVinci EMAC: hash_add(): Invalid "\
-				"Hash %08x, should not be greater than %08x",
-				hash_value, (EMAC_NUM_MULTICAST_BITS - 1));
-		}
-		return -1;
-	}
-
-	/* set the hash bit only if not previously set */
-	if (priv->multicast_hash_cnt[hash_value] == 0) {
-		rc = 1; /* hash value changed */
-		if (hash_value < 32) {
-			hash_bit = BIT(hash_value);
-			priv->mac_hash1 |= hash_bit;
-		} else {
-			hash_bit = BIT((hash_value - 32));
-			priv->mac_hash2 |= hash_bit;
-		}
-	}
-
-	/* incr counter for num of mcast addr's mapped to "this" hash bit */
-	++priv->multicast_hash_cnt[hash_value];
-
-	return rc;
-}
-
-/**
- * hash_del: Hash function to delete mac addr from hash table
- * @priv: The DaVinci EMAC private adapter structure
- * mac_addr: mac address to delete from hash table
- *
- * Removes mac address from the internal hash table
- *
- */
-static int hash_del(struct emac_priv *priv, u8 *mac_addr)
-{
-	u32 hash_value;
-	u32 hash_bit;
-
-	hash_value = hash_get(mac_addr);
-	if (priv->multicast_hash_cnt[hash_value] > 0) {
-		/* dec cntr for num of mcast addr's mapped to this hash bit */
-		--priv->multicast_hash_cnt[hash_value];
-	}
-
-	/* if counter still > 0, at least one multicast address refers
-	 * to this hash bit. so return 0 */
-	if (priv->multicast_hash_cnt[hash_value] > 0)
-		return 0;
-
-	if (hash_value < 32) {
-		hash_bit = BIT(hash_value);
-		priv->mac_hash1 &= ~hash_bit;
-	} else {
-		hash_bit = BIT((hash_value - 32));
-		priv->mac_hash2 &= ~hash_bit;
-	}
-
-	/* return 1 to indicate change in mac_hash registers reqd */
-	return 1;
-}
-
-/* EMAC multicast operation */
-#define EMAC_MULTICAST_ADD	0
-#define EMAC_MULTICAST_DEL	1
-#define EMAC_ALL_MULTI_SET	2
-#define EMAC_ALL_MULTI_CLR	3
-
-/**
- * emac_add_mcast: Set multicast address in the EMAC adapter (Internal)
- * @priv: The DaVinci EMAC private adapter structure
- * @action: multicast operation to perform
- * mac_addr: mac address to set
- *
- * Set multicast addresses in EMAC adapter - internal function
- *
- */
-static void emac_add_mcast(struct emac_priv *priv, u32 action, u8 *mac_addr)
-{
-	struct device *emac_dev = &priv->ndev->dev;
-	int update = -1;
-
-	switch (action) {
-	case EMAC_MULTICAST_ADD:
-		update = hash_add(priv, mac_addr);
-		break;
-	case EMAC_MULTICAST_DEL:
-		update = hash_del(priv, mac_addr);
-		break;
-	case EMAC_ALL_MULTI_SET:
-		update = 1;
-		priv->mac_hash1 = EMAC_ALL_MULTI_REG_VALUE;
-		priv->mac_hash2 = EMAC_ALL_MULTI_REG_VALUE;
-		break;
-	case EMAC_ALL_MULTI_CLR:
-		update = 1;
-		priv->mac_hash1 = 0;
-		priv->mac_hash2 = 0;
-		memset(&(priv->multicast_hash_cnt[0]), 0,
-		sizeof(priv->multicast_hash_cnt[0]) *
-		       EMAC_NUM_MULTICAST_BITS);
-		break;
-	default:
-		if (netif_msg_drv(priv))
-			dev_err(emac_dev, "DaVinci EMAC: add_mcast"\
-				": bad operation %d", action);
-		break;
-	}
-
-	/* write to the hardware only if the register status chances */
-	if (update > 0) {
-		emac_write(EMAC_MACHASH1, priv->mac_hash1);
-		emac_write(EMAC_MACHASH2, priv->mac_hash2);
-	}
-}
-
-/**
- * emac_dev_mcast_set: Set multicast address in the EMAC adapter
- * @ndev: The DaVinci EMAC network adapter
- *
- * Set multicast addresses in EMAC adapter
- *
- */
-static void emac_dev_mcast_set(struct net_device *ndev)
-{
-	u32 mbp_enable;
-	struct emac_priv *priv = netdev_priv(ndev);
-
-	mbp_enable = emac_read(EMAC_RXMBPENABLE);
-	if (ndev->flags & IFF_PROMISC) {
-		mbp_enable &= (~EMAC_MBP_PROMISCCH(EMAC_DEF_PROM_CH));
-		mbp_enable |= (EMAC_MBP_RXPROMISC);
-	} else {
-		mbp_enable = (mbp_enable & ~EMAC_MBP_RXPROMISC);
-		if ((ndev->flags & IFF_ALLMULTI) ||
-		    netdev_mc_count(ndev) > EMAC_DEF_MAX_MULTICAST_ADDRESSES) {
-			mbp_enable = (mbp_enable | EMAC_MBP_RXMCAST);
-			emac_add_mcast(priv, EMAC_ALL_MULTI_SET, NULL);
-		}
-		if (!netdev_mc_empty(ndev)) {
-			struct netdev_hw_addr *ha;
-
-			mbp_enable = (mbp_enable | EMAC_MBP_RXMCAST);
-			emac_add_mcast(priv, EMAC_ALL_MULTI_CLR, NULL);
-			/* program multicast address list into EMAC hardware */
-			netdev_for_each_mc_addr(ha, ndev) {
-				emac_add_mcast(priv, EMAC_MULTICAST_ADD,
-					       (u8 *) ha->addr);
-			}
-		} else {
-			mbp_enable = (mbp_enable & ~EMAC_MBP_RXMCAST);
-			emac_add_mcast(priv, EMAC_ALL_MULTI_CLR, NULL);
-		}
-	}
-	/* Set mbp config register */
-	emac_write(EMAC_RXMBPENABLE, mbp_enable);
-}
-
-/*************************************************************************
- *  EMAC Hardware manipulation
- *************************************************************************/
-
-/**
- * emac_int_disable: Disable EMAC module interrupt (from adapter)
- * @priv: The DaVinci EMAC private adapter structure
- *
- * Disable EMAC interrupt on the adapter
- *
- */
-static void emac_int_disable(struct emac_priv *priv)
-{
-	if (priv->version == EMAC_VERSION_2) {
-		unsigned long flags;
-
-		local_irq_save(flags);
-
-		/* Program C0_Int_En to zero to turn off
-		* interrupts to the CPU */
-		emac_ctrl_write(EMAC_DM646X_CMRXINTEN, 0x0);
-		emac_ctrl_write(EMAC_DM646X_CMTXINTEN, 0x0);
-		/* NOTE: Rx Threshold and Misc interrupts are not disabled */
-		if (priv->int_disable)
-			priv->int_disable();
-
-		local_irq_restore(flags);
-
-	} else {
-		/* Set DM644x control registers for interrupt control */
-		emac_ctrl_write(EMAC_CTRL_EWCTL, 0x0);
-	}
-}
-
-/**
- * emac_int_enable: Enable EMAC module interrupt (from adapter)
- * @priv: The DaVinci EMAC private adapter structure
- *
- * Enable EMAC interrupt on the adapter
- *
- */
-static void emac_int_enable(struct emac_priv *priv)
-{
-	if (priv->version == EMAC_VERSION_2) {
-		if (priv->int_enable)
-			priv->int_enable();
-
-		emac_ctrl_write(EMAC_DM646X_CMRXINTEN, 0xff);
-		emac_ctrl_write(EMAC_DM646X_CMTXINTEN, 0xff);
-
-		/* In addition to turning on interrupt Enable, we need
-		 * ack by writing appropriate values to the EOI
-		 * register */
-
-		/* NOTE: Rx Threshold and Misc interrupts are not enabled */
-
-		/* ack rxen only then a new pulse will be generated */
-		emac_write(EMAC_DM646X_MACEOIVECTOR,
-			EMAC_DM646X_MAC_EOI_C0_RXEN);
-
-		/* ack txen- only then a new pulse will be generated */
-		emac_write(EMAC_DM646X_MACEOIVECTOR,
-			EMAC_DM646X_MAC_EOI_C0_TXEN);
-
-	} else {
-		/* Set DM644x control registers for interrupt control */
-		emac_ctrl_write(EMAC_CTRL_EWCTL, 0x1);
-	}
-}
-
-/**
- * emac_irq: EMAC interrupt handler
- * @irq: interrupt number
- * @dev_id: EMAC network adapter data structure ptr
- *
- * EMAC Interrupt handler - we only schedule NAPI and not process any packets
- * here. EVen the interrupt status is checked (TX/RX/Err) in NAPI poll function
- *
- * Returns interrupt handled condition
- */
-static irqreturn_t emac_irq(int irq, void *dev_id)
-{
-	struct net_device *ndev = (struct net_device *)dev_id;
-	struct emac_priv *priv = netdev_priv(ndev);
-
-	++priv->isr_count;
-	if (likely(netif_running(priv->ndev))) {
-		emac_int_disable(priv);
-		napi_schedule(&priv->napi);
-	} else {
-		/* we are closing down, so dont process anything */
-	}
-	return IRQ_HANDLED;
-}
-
-static struct sk_buff *emac_rx_alloc(struct emac_priv *priv)
-{
-	struct sk_buff *skb = dev_alloc_skb(priv->rx_buf_size);
-	if (WARN_ON(!skb))
-		return NULL;
-	skb->dev = priv->ndev;
-	skb_reserve(skb, NET_IP_ALIGN);
-	return skb;
-}
-
-static void emac_rx_handler(void *token, int len, int status)
-{
-	struct sk_buff		*skb = token;
-	struct net_device	*ndev = skb->dev;
-	struct emac_priv	*priv = netdev_priv(ndev);
-	struct device		*emac_dev = &ndev->dev;
-	int			ret;
-
-	/* free and bail if we are shutting down */
-	if (unlikely(!netif_running(ndev) || !netif_carrier_ok(ndev))) {
-		dev_kfree_skb_any(skb);
-		return;
-	}
-
-	/* recycle on receive error */
-	if (status < 0) {
-		ndev->stats.rx_errors++;
-		goto recycle;
-	}
-
-	/* feed received packet up the stack */
-	skb_put(skb, len);
-	skb->protocol = eth_type_trans(skb, ndev);
-	netif_receive_skb(skb);
-	ndev->stats.rx_bytes += len;
-	ndev->stats.rx_packets++;
-
-	/* alloc a new packet for receive */
-	skb = emac_rx_alloc(priv);
-	if (!skb) {
-		if (netif_msg_rx_err(priv) && net_ratelimit())
-			dev_err(emac_dev, "failed rx buffer alloc\n");
-		return;
-	}
-
-recycle:
-	ret = cpdma_chan_submit(priv->rxchan, skb, skb->data,
-			skb_tailroom(skb), GFP_KERNEL);
-	if (WARN_ON(ret < 0))
-		dev_kfree_skb_any(skb);
-}
-
-static void emac_tx_handler(void *token, int len, int status)
-{
-	struct sk_buff		*skb = token;
-	struct net_device	*ndev = skb->dev;
-
-	if (unlikely(netif_queue_stopped(ndev)))
-		netif_start_queue(ndev);
-	ndev->stats.tx_packets++;
-	ndev->stats.tx_bytes += len;
-	dev_kfree_skb_any(skb);
-}
-
-/**
- * emac_dev_xmit: EMAC Transmit function
- * @skb: SKB pointer
- * @ndev: The DaVinci EMAC network adapter
- *
- * Called by the system to transmit a packet  - we queue the packet in
- * EMAC hardware transmit queue
- *
- * Returns success(NETDEV_TX_OK) or error code (typically out of desc's)
- */
-static int emac_dev_xmit(struct sk_buff *skb, struct net_device *ndev)
-{
-	struct device *emac_dev = &ndev->dev;
-	int ret_code;
-	struct emac_priv *priv = netdev_priv(ndev);
-
-	/* If no link, return */
-	if (unlikely(!priv->link)) {
-		if (netif_msg_tx_err(priv) && net_ratelimit())
-			dev_err(emac_dev, "DaVinci EMAC: No link to transmit");
-		goto fail_tx;
-	}
-
-	ret_code = skb_padto(skb, EMAC_DEF_MIN_ETHPKTSIZE);
-	if (unlikely(ret_code < 0)) {
-		if (netif_msg_tx_err(priv) && net_ratelimit())
-			dev_err(emac_dev, "DaVinci EMAC: packet pad failed");
-		goto fail_tx;
-	}
-
-	skb_tx_timestamp(skb);
-
-	ret_code = cpdma_chan_submit(priv->txchan, skb, skb->data, skb->len,
-				     GFP_KERNEL);
-	if (unlikely(ret_code != 0)) {
-		if (netif_msg_tx_err(priv) && net_ratelimit())
-			dev_err(emac_dev, "DaVinci EMAC: desc submit failed");
-		goto fail_tx;
-	}
-
-	return NETDEV_TX_OK;
-
-fail_tx:
-	ndev->stats.tx_dropped++;
-	netif_stop_queue(ndev);
-	return NETDEV_TX_BUSY;
-}
-
-/**
- * emac_dev_tx_timeout: EMAC Transmit timeout function
- * @ndev: The DaVinci EMAC network adapter
- *
- * Called when system detects that a skb timeout period has expired
- * potentially due to a fault in the adapter in not being able to send
- * it out on the wire. We teardown the TX channel assuming a hardware
- * error and re-initialize the TX channel for hardware operation
- *
- */
-static void emac_dev_tx_timeout(struct net_device *ndev)
-{
-	struct emac_priv *priv = netdev_priv(ndev);
-	struct device *emac_dev = &ndev->dev;
-
-	if (netif_msg_tx_err(priv))
-		dev_err(emac_dev, "DaVinci EMAC: xmit timeout, restarting TX");
-
-	emac_dump_regs(priv);
-
-	ndev->stats.tx_errors++;
-	emac_int_disable(priv);
-	cpdma_chan_stop(priv->txchan);
-	cpdma_chan_start(priv->txchan);
-	emac_int_enable(priv);
-}
-
-/**
- * emac_set_type0addr: Set EMAC Type0 mac address
- * @priv: The DaVinci EMAC private adapter structure
- * @ch: RX channel number
- * @mac_addr: MAC address to set in device
- *
- * Called internally to set Type0 mac address of the adapter (Device)
- *
- * Returns success (0) or appropriate error code (none as of now)
- */
-static void emac_set_type0addr(struct emac_priv *priv, u32 ch, char *mac_addr)
-{
-	u32 val;
-	val = ((mac_addr[5] << 8) | (mac_addr[4]));
-	emac_write(EMAC_MACSRCADDRLO, val);
-
-	val = ((mac_addr[3] << 24) | (mac_addr[2] << 16) | \
-	       (mac_addr[1] << 8) | (mac_addr[0]));
-	emac_write(EMAC_MACSRCADDRHI, val);
-	val = emac_read(EMAC_RXUNICASTSET);
-	val |= BIT(ch);
-	emac_write(EMAC_RXUNICASTSET, val);
-	val = emac_read(EMAC_RXUNICASTCLEAR);
-	val &= ~BIT(ch);
-	emac_write(EMAC_RXUNICASTCLEAR, val);
-}
-
-/**
- * emac_set_type1addr: Set EMAC Type1 mac address
- * @priv: The DaVinci EMAC private adapter structure
- * @ch: RX channel number
- * @mac_addr: MAC address to set in device
- *
- * Called internally to set Type1 mac address of the adapter (Device)
- *
- * Returns success (0) or appropriate error code (none as of now)
- */
-static void emac_set_type1addr(struct emac_priv *priv, u32 ch, char *mac_addr)
-{
-	u32 val;
-	emac_write(EMAC_MACINDEX, ch);
-	val = ((mac_addr[5] << 8) | mac_addr[4]);
-	emac_write(EMAC_MACADDRLO, val);
-	val = ((mac_addr[3] << 24) | (mac_addr[2] << 16) | \
-	       (mac_addr[1] << 8) | (mac_addr[0]));
-	emac_write(EMAC_MACADDRHI, val);
-	emac_set_type0addr(priv, ch, mac_addr);
-}
-
-/**
- * emac_set_type2addr: Set EMAC Type2 mac address
- * @priv: The DaVinci EMAC private adapter structure
- * @ch: RX channel number
- * @mac_addr: MAC address to set in device
- * @index: index into RX address entries
- * @match: match parameter for RX address matching logic
- *
- * Called internally to set Type2 mac address of the adapter (Device)
- *
- * Returns success (0) or appropriate error code (none as of now)
- */
-static void emac_set_type2addr(struct emac_priv *priv, u32 ch,
-			       char *mac_addr, int index, int match)
-{
-	u32 val;
-	emac_write(EMAC_MACINDEX, index);
-	val = ((mac_addr[3] << 24) | (mac_addr[2] << 16) | \
-	       (mac_addr[1] << 8) | (mac_addr[0]));
-	emac_write(EMAC_MACADDRHI, val);
-	val = ((mac_addr[5] << 8) | mac_addr[4] | ((ch & 0x7) << 16) | \
-	       (match << 19) | BIT(20));
-	emac_write(EMAC_MACADDRLO, val);
-	emac_set_type0addr(priv, ch, mac_addr);
-}
-
-/**
- * emac_setmac: Set mac address in the adapter (internal function)
- * @priv: The DaVinci EMAC private adapter structure
- * @ch: RX channel number
- * @mac_addr: MAC address to set in device
- *
- * Called internally to set the mac address of the adapter (Device)
- *
- * Returns success (0) or appropriate error code (none as of now)
- */
-static void emac_setmac(struct emac_priv *priv, u32 ch, char *mac_addr)
-{
-	struct device *emac_dev = &priv->ndev->dev;
-
-	if (priv->rx_addr_type == 0) {
-		emac_set_type0addr(priv, ch, mac_addr);
-	} else if (priv->rx_addr_type == 1) {
-		u32 cnt;
-		for (cnt = 0; cnt < EMAC_MAX_TXRX_CHANNELS; cnt++)
-			emac_set_type1addr(priv, ch, mac_addr);
-	} else if (priv->rx_addr_type == 2) {
-		emac_set_type2addr(priv, ch, mac_addr, ch, 1);
-		emac_set_type0addr(priv, ch, mac_addr);
-	} else {
-		if (netif_msg_drv(priv))
-			dev_err(emac_dev, "DaVinci EMAC: Wrong addressing\n");
-	}
-}
-
-/**
- * emac_dev_setmac_addr: Set mac address in the adapter
- * @ndev: The DaVinci EMAC network adapter
- * @addr: MAC address to set in device
- *
- * Called by the system to set the mac address of the adapter (Device)
- *
- * Returns success (0) or appropriate error code (none as of now)
- */
-static int emac_dev_setmac_addr(struct net_device *ndev, void *addr)
-{
-	struct emac_priv *priv = netdev_priv(ndev);
-	struct device *emac_dev = &priv->ndev->dev;
-	struct sockaddr *sa = addr;
-
-	if (!is_valid_ether_addr(sa->sa_data))
-		return -EINVAL;
-
-	/* Store mac addr in priv and rx channel and set it in EMAC hw */
-	memcpy(priv->mac_addr, sa->sa_data, ndev->addr_len);
-	memcpy(ndev->dev_addr, sa->sa_data, ndev->addr_len);
-
-	/* MAC address is configured only after the interface is enabled. */
-	if (netif_running(ndev)) {
-		memcpy(priv->mac_addr, sa->sa_data, ndev->addr_len);
-		emac_setmac(priv, EMAC_DEF_RX_CH, priv->mac_addr);
-	}
-
-	if (netif_msg_drv(priv))
-		dev_notice(emac_dev, "DaVinci EMAC: emac_dev_setmac_addr %pM\n",
-					priv->mac_addr);
-
-	return 0;
-}
-
-/**
- * emac_hw_enable: Enable EMAC hardware for packet transmission/reception
- * @priv: The DaVinci EMAC private adapter structure
- *
- * Enables EMAC hardware for packet processing - enables PHY, enables RX
- * for packet reception and enables device interrupts and then NAPI
- *
- * Returns success (0) or appropriate error code (none right now)
- */
-static int emac_hw_enable(struct emac_priv *priv)
-{
-	u32 val, mbp_enable, mac_control;
-
-	/* Soft reset */
-	emac_write(EMAC_SOFTRESET, 1);
-	while (emac_read(EMAC_SOFTRESET))
-		cpu_relax();
-
-	/* Disable interrupt & Set pacing for more interrupts initially */
-	emac_int_disable(priv);
-
-	/* Full duplex enable bit set when auto negotiation happens */
-	mac_control =
-		(((EMAC_DEF_TXPRIO_FIXED) ? (EMAC_MACCONTROL_TXPTYPE) : 0x0) |
-		((priv->speed == 1000) ? EMAC_MACCONTROL_GIGABITEN : 0x0) |
-		((EMAC_DEF_TXPACING_EN) ? (EMAC_MACCONTROL_TXPACEEN) : 0x0) |
-		((priv->duplex == DUPLEX_FULL) ? 0x1 : 0));
-	emac_write(EMAC_MACCONTROL, mac_control);
-
-	mbp_enable =
-		(((EMAC_DEF_PASS_CRC) ? (EMAC_RXMBP_PASSCRC_MASK) : 0x0) |
-		((EMAC_DEF_QOS_EN) ? (EMAC_RXMBP_QOSEN_MASK) : 0x0) |
-		 ((EMAC_DEF_NO_BUFF_CHAIN) ? (EMAC_RXMBP_NOCHAIN_MASK) : 0x0) |
-		 ((EMAC_DEF_MACCTRL_FRAME_EN) ? (EMAC_RXMBP_CMFEN_MASK) : 0x0) |
-		 ((EMAC_DEF_SHORT_FRAME_EN) ? (EMAC_RXMBP_CSFEN_MASK) : 0x0) |
-		 ((EMAC_DEF_ERROR_FRAME_EN) ? (EMAC_RXMBP_CEFEN_MASK) : 0x0) |
-		 ((EMAC_DEF_PROM_EN) ? (EMAC_RXMBP_CAFEN_MASK) : 0x0) |
-		 ((EMAC_DEF_PROM_CH & EMAC_RXMBP_CHMASK) << \
-			EMAC_RXMBP_PROMCH_SHIFT) |
-		 ((EMAC_DEF_BCAST_EN) ? (EMAC_RXMBP_BROADEN_MASK) : 0x0) |
-		 ((EMAC_DEF_BCAST_CH & EMAC_RXMBP_CHMASK) << \
-			EMAC_RXMBP_BROADCH_SHIFT) |
-		 ((EMAC_DEF_MCAST_EN) ? (EMAC_RXMBP_MULTIEN_MASK) : 0x0) |
-		 ((EMAC_DEF_MCAST_CH & EMAC_RXMBP_CHMASK) << \
-			EMAC_RXMBP_MULTICH_SHIFT));
-	emac_write(EMAC_RXMBPENABLE, mbp_enable);
-	emac_write(EMAC_RXMAXLEN, (EMAC_DEF_MAX_FRAME_SIZE &
-				   EMAC_RX_MAX_LEN_MASK));
-	emac_write(EMAC_RXBUFFEROFFSET, (EMAC_DEF_BUFFER_OFFSET &
-					 EMAC_RX_BUFFER_OFFSET_MASK));
-	emac_write(EMAC_RXFILTERLOWTHRESH, 0);
-	emac_write(EMAC_RXUNICASTCLEAR, EMAC_RX_UNICAST_CLEAR_ALL);
-	priv->rx_addr_type = (emac_read(EMAC_MACCONFIG) >> 8) & 0xFF;
-
-	emac_write(EMAC_MACINTMASKSET, EMAC_MAC_HOST_ERR_INTMASK_VAL);
-
-	emac_setmac(priv, EMAC_DEF_RX_CH, priv->mac_addr);
-
-	/* Enable MII */
-	val = emac_read(EMAC_MACCONTROL);
-	val |= (EMAC_MACCONTROL_GMIIEN);
-	emac_write(EMAC_MACCONTROL, val);
-
-	/* Enable NAPI and interrupts */
-	napi_enable(&priv->napi);
-	emac_int_enable(priv);
-	return 0;
-
-}
-
-/**
- * emac_poll: EMAC NAPI Poll function
- * @ndev: The DaVinci EMAC network adapter
- * @budget: Number of receive packets to process (as told by NAPI layer)
- *
- * NAPI Poll function implemented to process packets as per budget. We check
- * the type of interrupt on the device and accordingly call the TX or RX
- * packet processing functions. We follow the budget for RX processing and
- * also put a cap on number of TX pkts processed through config param. The
- * NAPI schedule function is called if more packets pending.
- *
- * Returns number of packets received (in most cases; else TX pkts - rarely)
- */
-static int emac_poll(struct napi_struct *napi, int budget)
-{
-	unsigned int mask;
-	struct emac_priv *priv = container_of(napi, struct emac_priv, napi);
-	struct net_device *ndev = priv->ndev;
-	struct device *emac_dev = &ndev->dev;
-	u32 status = 0;
-	u32 num_tx_pkts = 0, num_rx_pkts = 0;
-
-	/* Check interrupt vectors and call packet processing */
-	status = emac_read(EMAC_MACINVECTOR);
-
-	mask = EMAC_DM644X_MAC_IN_VECTOR_TX_INT_VEC;
-
-	if (priv->version == EMAC_VERSION_2)
-		mask = EMAC_DM646X_MAC_IN_VECTOR_TX_INT_VEC;
-
-	if (status & mask) {
-		num_tx_pkts = cpdma_chan_process(priv->txchan,
-					      EMAC_DEF_TX_MAX_SERVICE);
-	} /* TX processing */
-
-	mask = EMAC_DM644X_MAC_IN_VECTOR_RX_INT_VEC;
-
-	if (priv->version == EMAC_VERSION_2)
-		mask = EMAC_DM646X_MAC_IN_VECTOR_RX_INT_VEC;
-
-	if (status & mask) {
-		num_rx_pkts = cpdma_chan_process(priv->rxchan, budget);
-	} /* RX processing */
-
-	mask = EMAC_DM644X_MAC_IN_VECTOR_HOST_INT;
-	if (priv->version == EMAC_VERSION_2)
-		mask = EMAC_DM646X_MAC_IN_VECTOR_HOST_INT;
-
-	if (unlikely(status & mask)) {
-		u32 ch, cause;
-		dev_err(emac_dev, "DaVinci EMAC: Fatal Hardware Error\n");
-		netif_stop_queue(ndev);
-		napi_disable(&priv->napi);
-
-		status = emac_read(EMAC_MACSTATUS);
-		cause = ((status & EMAC_MACSTATUS_TXERRCODE_MASK) >>
-			 EMAC_MACSTATUS_TXERRCODE_SHIFT);
-		if (cause) {
-			ch = ((status & EMAC_MACSTATUS_TXERRCH_MASK) >>
-			      EMAC_MACSTATUS_TXERRCH_SHIFT);
-			if (net_ratelimit()) {
-				dev_err(emac_dev, "TX Host error %s on ch=%d\n",
-					&emac_txhost_errcodes[cause][0], ch);
-			}
-		}
-		cause = ((status & EMAC_MACSTATUS_RXERRCODE_MASK) >>
-			 EMAC_MACSTATUS_RXERRCODE_SHIFT);
-		if (cause) {
-			ch = ((status & EMAC_MACSTATUS_RXERRCH_MASK) >>
-			      EMAC_MACSTATUS_RXERRCH_SHIFT);
-			if (netif_msg_hw(priv) && net_ratelimit())
-				dev_err(emac_dev, "RX Host error %s on ch=%d\n",
-					&emac_rxhost_errcodes[cause][0], ch);
-		}
-	} else if (num_rx_pkts < budget) {
-		napi_complete(napi);
-		emac_int_enable(priv);
-	}
-
-	return num_rx_pkts;
-}
-
-#ifdef CONFIG_NET_POLL_CONTROLLER
-/**
- * emac_poll_controller: EMAC Poll controller function
- * @ndev: The DaVinci EMAC network adapter
- *
- * Polled functionality used by netconsole and others in non interrupt mode
- *
- */
-void emac_poll_controller(struct net_device *ndev)
-{
-	struct emac_priv *priv = netdev_priv(ndev);
-
-	emac_int_disable(priv);
-	emac_irq(ndev->irq, ndev);
-	emac_int_enable(priv);
-}
-#endif
-
-static void emac_adjust_link(struct net_device *ndev)
-{
-	struct emac_priv *priv = netdev_priv(ndev);
-	struct phy_device *phydev = priv->phydev;
-	unsigned long flags;
-	int new_state = 0;
-
-	spin_lock_irqsave(&priv->lock, flags);
-
-	if (phydev->link) {
-		/* check the mode of operation - full/half duplex */
-		if (phydev->duplex != priv->duplex) {
-			new_state = 1;
-			priv->duplex = phydev->duplex;
-		}
-		if (phydev->speed != priv->speed) {
-			new_state = 1;
-			priv->speed = phydev->speed;
-		}
-		if (!priv->link) {
-			new_state = 1;
-			priv->link = 1;
-		}
-
-	} else if (priv->link) {
-		new_state = 1;
-		priv->link = 0;
-		priv->speed = 0;
-		priv->duplex = ~0;
-	}
-	if (new_state) {
-		emac_update_phystatus(priv);
-		phy_print_status(priv->phydev);
-	}
-
-	spin_unlock_irqrestore(&priv->lock, flags);
-}
-
-/*************************************************************************
- *  Linux Driver Model
- *************************************************************************/
-
-/**
- * emac_devioctl: EMAC adapter ioctl
- * @ndev: The DaVinci EMAC network adapter
- * @ifrq: request parameter
- * @cmd: command parameter
- *
- * EMAC driver ioctl function
- *
- * Returns success(0) or appropriate error code
- */
-static int emac_devioctl(struct net_device *ndev, struct ifreq *ifrq, int cmd)
-{
-	struct emac_priv *priv = netdev_priv(ndev);
-
-	if (!(netif_running(ndev)))
-		return -EINVAL;
-
-	/* TODO: Add phy read and write and private statistics get feature */
-
-	return phy_mii_ioctl(priv->phydev, ifrq, cmd);
-}
-
-static int match_first_device(struct device *dev, void *data)
-{
-	return 1;
-}
-
-/**
- * emac_dev_open: EMAC device open
- * @ndev: The DaVinci EMAC network adapter
- *
- * Called when system wants to start the interface. We init TX/RX channels
- * and enable the hardware for packet reception/transmission and start the
- * network queue.
- *
- * Returns 0 for a successful open, or appropriate error code
- */
-static int emac_dev_open(struct net_device *ndev)
-{
-	struct device *emac_dev = &ndev->dev;
-	u32 cnt;
-	struct resource *res;
-	int q, m, ret;
-	int i = 0;
-	int k = 0;
-	struct emac_priv *priv = netdev_priv(ndev);
-
-	netif_carrier_off(ndev);
-	for (cnt = 0; cnt < ETH_ALEN; cnt++)
-		ndev->dev_addr[cnt] = priv->mac_addr[cnt];
-
-	/* Configuration items */
-	priv->rx_buf_size = EMAC_DEF_MAX_FRAME_SIZE + NET_IP_ALIGN;
-
-	priv->mac_hash1 = 0;
-	priv->mac_hash2 = 0;
-	emac_write(EMAC_MACHASH1, 0);
-	emac_write(EMAC_MACHASH2, 0);
-
-	for (i = 0; i < EMAC_DEF_RX_NUM_DESC; i++) {
-		struct sk_buff *skb = emac_rx_alloc(priv);
-
-		if (!skb)
-			break;
-
-		ret = cpdma_chan_submit(priv->rxchan, skb, skb->data,
-					skb_tailroom(skb), GFP_KERNEL);
-		if (WARN_ON(ret < 0))
-			break;
-	}
-
-	/* Request IRQ */
-
-	while ((res = platform_get_resource(priv->pdev, IORESOURCE_IRQ, k))) {
-		for (i = res->start; i <= res->end; i++) {
-			if (request_irq(i, emac_irq, IRQF_DISABLED,
-					ndev->name, ndev))
-				goto rollback;
-		}
-		k++;
-	}
-
-	/* Start/Enable EMAC hardware */
-	emac_hw_enable(priv);
-
-	/* Enable Interrupt pacing if configured */
-	if (priv->coal_intvl != 0) {
-		struct ethtool_coalesce coal;
-
-		coal.rx_coalesce_usecs = (priv->coal_intvl << 4);
-		emac_set_coalesce(ndev, &coal);
-	}
-
-	cpdma_ctlr_start(priv->dma);
-
-	priv->phydev = NULL;
-	/* use the first phy on the bus if pdata did not give us a phy id */
-	if (!priv->phy_id) {
-		struct device *phy;
-
-		phy = bus_find_device(&mdio_bus_type, NULL, NULL,
-				      match_first_device);
-		if (phy)
-			priv->phy_id = dev_name(phy);
-	}
-
-	if (priv->phy_id && *priv->phy_id) {
-		priv->phydev = phy_connect(ndev, priv->phy_id,
-					   &emac_adjust_link, 0,
-					   PHY_INTERFACE_MODE_MII);
-
-		if (IS_ERR(priv->phydev)) {
-			dev_err(emac_dev, "could not connect to phy %s\n",
-				priv->phy_id);
-			priv->phydev = NULL;
-			return PTR_ERR(priv->phydev);
-		}
-
-		priv->link = 0;
-		priv->speed = 0;
-		priv->duplex = ~0;
-
-		dev_info(emac_dev, "attached PHY driver [%s] "
-			"(mii_bus:phy_addr=%s, id=%x)\n",
-			priv->phydev->drv->name, dev_name(&priv->phydev->dev),
-			priv->phydev->phy_id);
-	} else {
-		/* No PHY , fix the link, speed and duplex settings */
-		dev_notice(emac_dev, "no phy, defaulting to 100/full\n");
-		priv->link = 1;
-		priv->speed = SPEED_100;
-		priv->duplex = DUPLEX_FULL;
-		emac_update_phystatus(priv);
-	}
-
-	if (!netif_running(ndev)) /* debug only - to avoid compiler warning */
-		emac_dump_regs(priv);
-
-	if (netif_msg_drv(priv))
-		dev_notice(emac_dev, "DaVinci EMAC: Opened %s\n", ndev->name);
-
-	if (priv->phydev)
-		phy_start(priv->phydev);
-
-	return 0;
-
-rollback:
-
-	dev_err(emac_dev, "DaVinci EMAC: request_irq() failed");
-
-	for (q = k; k >= 0; k--) {
-		for (m = i; m >= res->start; m--)
-			free_irq(m, ndev);
-		res = platform_get_resource(priv->pdev, IORESOURCE_IRQ, k-1);
-		m = res->end;
-	}
-	return -EBUSY;
-}
-
-/**
- * emac_dev_stop: EMAC device stop
- * @ndev: The DaVinci EMAC network adapter
- *
- * Called when system wants to stop or down the interface. We stop the network
- * queue, disable interrupts and cleanup TX/RX channels.
- *
- * We return the statistics in net_device_stats structure pulled from emac
- */
-static int emac_dev_stop(struct net_device *ndev)
-{
-	struct resource *res;
-	int i = 0;
-	int irq_num;
-	struct emac_priv *priv = netdev_priv(ndev);
-	struct device *emac_dev = &ndev->dev;
-
-	/* inform the upper layers. */
-	netif_stop_queue(ndev);
-	napi_disable(&priv->napi);
-
-	netif_carrier_off(ndev);
-	emac_int_disable(priv);
-	cpdma_ctlr_stop(priv->dma);
-	emac_write(EMAC_SOFTRESET, 1);
-
-	if (priv->phydev)
-		phy_disconnect(priv->phydev);
-
-	/* Free IRQ */
-	while ((res = platform_get_resource(priv->pdev, IORESOURCE_IRQ, i))) {
-		for (irq_num = res->start; irq_num <= res->end; irq_num++)
-			free_irq(irq_num, priv->ndev);
-		i++;
-	}
-
-	if (netif_msg_drv(priv))
-		dev_notice(emac_dev, "DaVinci EMAC: %s stopped\n", ndev->name);
-
-	return 0;
-}
-
-/**
- * emac_dev_getnetstats: EMAC get statistics function
- * @ndev: The DaVinci EMAC network adapter
- *
- * Called when system wants to get statistics from the device.
- *
- * We return the statistics in net_device_stats structure pulled from emac
- */
-static struct net_device_stats *emac_dev_getnetstats(struct net_device *ndev)
-{
-	struct emac_priv *priv = netdev_priv(ndev);
-	u32 mac_control;
-	u32 stats_clear_mask;
-
-	/* update emac hardware stats and reset the registers*/
-
-	mac_control = emac_read(EMAC_MACCONTROL);
-
-	if (mac_control & EMAC_MACCONTROL_GMIIEN)
-		stats_clear_mask = EMAC_STATS_CLR_MASK;
-	else
-		stats_clear_mask = 0;
-
-	ndev->stats.multicast += emac_read(EMAC_RXMCASTFRAMES);
-	emac_write(EMAC_RXMCASTFRAMES, stats_clear_mask);
-
-	ndev->stats.collisions += (emac_read(EMAC_TXCOLLISION) +
-					   emac_read(EMAC_TXSINGLECOLL) +
-					   emac_read(EMAC_TXMULTICOLL));
-	emac_write(EMAC_TXCOLLISION, stats_clear_mask);
-	emac_write(EMAC_TXSINGLECOLL, stats_clear_mask);
-	emac_write(EMAC_TXMULTICOLL, stats_clear_mask);
-
-	ndev->stats.rx_length_errors += (emac_read(EMAC_RXOVERSIZED) +
-						emac_read(EMAC_RXJABBER) +
-						emac_read(EMAC_RXUNDERSIZED));
-	emac_write(EMAC_RXOVERSIZED, stats_clear_mask);
-	emac_write(EMAC_RXJABBER, stats_clear_mask);
-	emac_write(EMAC_RXUNDERSIZED, stats_clear_mask);
-
-	ndev->stats.rx_over_errors += (emac_read(EMAC_RXSOFOVERRUNS) +
-					       emac_read(EMAC_RXMOFOVERRUNS));
-	emac_write(EMAC_RXSOFOVERRUNS, stats_clear_mask);
-	emac_write(EMAC_RXMOFOVERRUNS, stats_clear_mask);
-
-	ndev->stats.rx_fifo_errors += emac_read(EMAC_RXDMAOVERRUNS);
-	emac_write(EMAC_RXDMAOVERRUNS, stats_clear_mask);
-
-	ndev->stats.tx_carrier_errors +=
-		emac_read(EMAC_TXCARRIERSENSE);
-	emac_write(EMAC_TXCARRIERSENSE, stats_clear_mask);
-
-	ndev->stats.tx_fifo_errors += emac_read(EMAC_TXUNDERRUN);
-	emac_write(EMAC_TXUNDERRUN, stats_clear_mask);
-
-	return &ndev->stats;
-}
-
-static const struct net_device_ops emac_netdev_ops = {
-	.ndo_open		= emac_dev_open,
-	.ndo_stop		= emac_dev_stop,
-	.ndo_start_xmit		= emac_dev_xmit,
-	.ndo_set_multicast_list	= emac_dev_mcast_set,
-	.ndo_set_mac_address	= emac_dev_setmac_addr,
-	.ndo_do_ioctl		= emac_devioctl,
-	.ndo_tx_timeout		= emac_dev_tx_timeout,
-	.ndo_get_stats		= emac_dev_getnetstats,
-#ifdef CONFIG_NET_POLL_CONTROLLER
-	.ndo_poll_controller	= emac_poll_controller,
-#endif
-};
-
-/**
- * davinci_emac_probe: EMAC device probe
- * @pdev: The DaVinci EMAC device that we are removing
- *
- * Called when probing for emac devicesr. We get details of instances and
- * resource information from platform init and register a network device
- * and allocate resources necessary for driver to perform
- */
-static int __devinit davinci_emac_probe(struct platform_device *pdev)
-{
-	int rc = 0;
-	struct resource *res;
-	struct net_device *ndev;
-	struct emac_priv *priv;
-	unsigned long size, hw_ram_addr;
-	struct emac_platform_data *pdata;
-	struct device *emac_dev;
-	struct cpdma_params dma_params;
-
-	/* obtain emac clock from kernel */
-	emac_clk = clk_get(&pdev->dev, NULL);
-	if (IS_ERR(emac_clk)) {
-		dev_err(&pdev->dev, "failed to get EMAC clock\n");
-		return -EBUSY;
-	}
-	emac_bus_frequency = clk_get_rate(emac_clk);
-	/* TODO: Probe PHY here if possible */
-
-	ndev = alloc_etherdev(sizeof(struct emac_priv));
-	if (!ndev) {
-		dev_err(&pdev->dev, "error allocating net_device\n");
-		rc = -ENOMEM;
-		goto free_clk;
-	}
-
-	platform_set_drvdata(pdev, ndev);
-	priv = netdev_priv(ndev);
-	priv->pdev = pdev;
-	priv->ndev = ndev;
-	priv->msg_enable = netif_msg_init(debug_level, DAVINCI_EMAC_DEBUG);
-
-	spin_lock_init(&priv->lock);
-
-	pdata = pdev->dev.platform_data;
-	if (!pdata) {
-		dev_err(&pdev->dev, "no platform data\n");
-		rc = -ENODEV;
-		goto probe_quit;
-	}
-
-	/* MAC addr and PHY mask , RMII enable info from platform_data */
-	memcpy(priv->mac_addr, pdata->mac_addr, 6);
-	priv->phy_id = pdata->phy_id;
-	priv->rmii_en = pdata->rmii_en;
-	priv->version = pdata->version;
-	priv->int_enable = pdata->interrupt_enable;
-	priv->int_disable = pdata->interrupt_disable;
-
-	priv->coal_intvl = 0;
-	priv->bus_freq_mhz = (u32)(emac_bus_frequency / 1000000);
-
-	emac_dev = &ndev->dev;
-	/* Get EMAC platform data */
-	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-	if (!res) {
-		dev_err(&pdev->dev,"error getting res\n");
-		rc = -ENOENT;
-		goto probe_quit;
-	}
-
-	priv->emac_base_phys = res->start + pdata->ctrl_reg_offset;
-	size = resource_size(res);
-	if (!request_mem_region(res->start, size, ndev->name)) {
-		dev_err(&pdev->dev, "failed request_mem_region() for regs\n");
-		rc = -ENXIO;
-		goto probe_quit;
-	}
-
-	priv->remap_addr = ioremap(res->start, size);
-	if (!priv->remap_addr) {
-		dev_err(&pdev->dev, "unable to map IO\n");
-		rc = -ENOMEM;
-		release_mem_region(res->start, size);
-		goto probe_quit;
-	}
-	priv->emac_base = priv->remap_addr + pdata->ctrl_reg_offset;
-	ndev->base_addr = (unsigned long)priv->remap_addr;
-
-	priv->ctrl_base = priv->remap_addr + pdata->ctrl_mod_reg_offset;
-
-	hw_ram_addr = pdata->hw_ram_addr;
-	if (!hw_ram_addr)
-		hw_ram_addr = (u32 __force)res->start + pdata->ctrl_ram_offset;
-
-	memset(&dma_params, 0, sizeof(dma_params));
-	dma_params.dev			= emac_dev;
-	dma_params.dmaregs		= priv->emac_base;
-	dma_params.rxthresh		= priv->emac_base + 0x120;
-	dma_params.rxfree		= priv->emac_base + 0x140;
-	dma_params.txhdp		= priv->emac_base + 0x600;
-	dma_params.rxhdp		= priv->emac_base + 0x620;
-	dma_params.txcp			= priv->emac_base + 0x640;
-	dma_params.rxcp			= priv->emac_base + 0x660;
-	dma_params.num_chan		= EMAC_MAX_TXRX_CHANNELS;
-	dma_params.min_packet_size	= EMAC_DEF_MIN_ETHPKTSIZE;
-	dma_params.desc_hw_addr		= hw_ram_addr;
-	dma_params.desc_mem_size	= pdata->ctrl_ram_size;
-	dma_params.desc_align		= 16;
-
-	dma_params.desc_mem_phys = pdata->no_bd_ram ? 0 :
-			(u32 __force)res->start + pdata->ctrl_ram_offset;
-
-	priv->dma = cpdma_ctlr_create(&dma_params);
-	if (!priv->dma) {
-		dev_err(&pdev->dev, "error initializing DMA\n");
-		rc = -ENOMEM;
-		goto no_dma;
-	}
-
-	priv->txchan = cpdma_chan_create(priv->dma, tx_chan_num(EMAC_DEF_TX_CH),
-				       emac_tx_handler);
-	priv->rxchan = cpdma_chan_create(priv->dma, rx_chan_num(EMAC_DEF_RX_CH),
-				       emac_rx_handler);
-	if (WARN_ON(!priv->txchan || !priv->rxchan)) {
-		rc = -ENOMEM;
-		goto no_irq_res;
-	}
-
-	res = platform_get_resource(pdev, IORESOURCE_IRQ, 0);
-	if (!res) {
-		dev_err(&pdev->dev, "error getting irq res\n");
-		rc = -ENOENT;
-		goto no_irq_res;
-	}
-	ndev->irq = res->start;
-
-	if (!is_valid_ether_addr(priv->mac_addr)) {
-		/* Use random MAC if none passed */
-		random_ether_addr(priv->mac_addr);
-		dev_warn(&pdev->dev, "using random MAC addr: %pM\n",
-							priv->mac_addr);
-	}
-
-	ndev->netdev_ops = &emac_netdev_ops;
-	SET_ETHTOOL_OPS(ndev, &ethtool_ops);
-	netif_napi_add(ndev, &priv->napi, emac_poll, EMAC_POLL_WEIGHT);
-
-	clk_enable(emac_clk);
-
-	/* register the network device */
-	SET_NETDEV_DEV(ndev, &pdev->dev);
-	rc = register_netdev(ndev);
-	if (rc) {
-		dev_err(&pdev->dev, "error in register_netdev\n");
-		rc = -ENODEV;
-		goto netdev_reg_err;
-	}
-
-
-	if (netif_msg_probe(priv)) {
-		dev_notice(emac_dev, "DaVinci EMAC Probe found device "\
-			   "(regs: %p, irq: %d)\n",
-			   (void *)priv->emac_base_phys, ndev->irq);
-	}
-	return 0;
-
-netdev_reg_err:
-	clk_disable(emac_clk);
-no_irq_res:
-	if (priv->txchan)
-		cpdma_chan_destroy(priv->txchan);
-	if (priv->rxchan)
-		cpdma_chan_destroy(priv->rxchan);
-	cpdma_ctlr_destroy(priv->dma);
-no_dma:
-	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-	release_mem_region(res->start, resource_size(res));
-	iounmap(priv->remap_addr);
-
-probe_quit:
-	free_netdev(ndev);
-free_clk:
-	clk_put(emac_clk);
-	return rc;
-}
-
-/**
- * davinci_emac_remove: EMAC device remove
- * @pdev: The DaVinci EMAC device that we are removing
- *
- * Called when removing the device driver. We disable clock usage and release
- * the resources taken up by the driver and unregister network device
- */
-static int __devexit davinci_emac_remove(struct platform_device *pdev)
-{
-	struct resource *res;
-	struct net_device *ndev = platform_get_drvdata(pdev);
-	struct emac_priv *priv = netdev_priv(ndev);
-
-	dev_notice(&ndev->dev, "DaVinci EMAC: davinci_emac_remove()\n");
-
-	platform_set_drvdata(pdev, NULL);
-	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-
-	if (priv->txchan)
-		cpdma_chan_destroy(priv->txchan);
-	if (priv->rxchan)
-		cpdma_chan_destroy(priv->rxchan);
-	cpdma_ctlr_destroy(priv->dma);
-
-	release_mem_region(res->start, resource_size(res));
-
-	unregister_netdev(ndev);
-	iounmap(priv->remap_addr);
-	free_netdev(ndev);
-
-	clk_disable(emac_clk);
-	clk_put(emac_clk);
-
-	return 0;
-}
-
-static int davinci_emac_suspend(struct device *dev)
-{
-	struct platform_device *pdev = to_platform_device(dev);
-	struct net_device *ndev = platform_get_drvdata(pdev);
-
-	if (netif_running(ndev))
-		emac_dev_stop(ndev);
-
-	clk_disable(emac_clk);
-
-	return 0;
-}
-
-static int davinci_emac_resume(struct device *dev)
-{
-	struct platform_device *pdev = to_platform_device(dev);
-	struct net_device *ndev = platform_get_drvdata(pdev);
-
-	clk_enable(emac_clk);
-
-	if (netif_running(ndev))
-		emac_dev_open(ndev);
-
-	return 0;
-}
-
-static const struct dev_pm_ops davinci_emac_pm_ops = {
-	.suspend	= davinci_emac_suspend,
-	.resume		= davinci_emac_resume,
-};
-
-/**
- * davinci_emac_driver: EMAC platform driver structure
- */
-static struct platform_driver davinci_emac_driver = {
-	.driver = {
-		.name	 = "davinci_emac",
-		.owner	 = THIS_MODULE,
-		.pm	 = &davinci_emac_pm_ops,
-	},
-	.probe = davinci_emac_probe,
-	.remove = __devexit_p(davinci_emac_remove),
-};
-
-/**
- * davinci_emac_init: EMAC driver module init
- *
- * Called when initializing the driver. We register the driver with
- * the platform.
- */
-static int __init davinci_emac_init(void)
-{
-	return platform_driver_register(&davinci_emac_driver);
-}
-late_initcall(davinci_emac_init);
-
-/**
- * davinci_emac_exit: EMAC driver module exit
- *
- * Called when exiting the driver completely. We unregister the driver with
- * the platform and exit
- */
-static void __exit davinci_emac_exit(void)
-{
-	platform_driver_unregister(&davinci_emac_driver);
-}
-module_exit(davinci_emac_exit);
-
-MODULE_LICENSE("GPL");
-MODULE_AUTHOR("DaVinci EMAC Maintainer: Anant Gole <anantgole@ti.com>");
-MODULE_AUTHOR("DaVinci EMAC Maintainer: Chaithrika U S <chaithrika@ti.com>");
-MODULE_DESCRIPTION("DaVinci EMAC Ethernet driver");