Revert "[BSP] tm4c129x:"

This reverts commit 666d12988a2ab3fc9eb878e3b52cb083c85e6dbe.

5 files changed, 1 insertions, 1474 deletions

diff --git a/bsp/tm4c129x/applications/application.c b/bsp/tm4c129x/applications/application.c
index 984e622157..80f58b6ed8 100644
--- a/bsp/tm4c129x/applications/application.c
+++ b/bsp/tm4c129x/applications/application.c
@@ -16,9 +16,6 @@
 #include <board.h>
 #include <components.h>
 
-#ifdef RT_USING_LWIP
-#include "drv_eth.h"
-#endif
 /* thread phase init */
 void rt_init_thread_entry(void *parameter)
 {
@@ -27,9 +24,6 @@ void rt_init_thread_entry(void *parameter)
 #ifdef RT_USING_FINSH
     finsh_set_device(RT_CONSOLE_DEVICE_NAME);
 #endif
-#ifdef RT_USING_LWIP
-    rt_hw_tiva_eth_init();
-#endif
 }
 
 int rt_application_init(void)
diff --git a/bsp/tm4c129x/applications/board.c b/bsp/tm4c129x/applications/board.c
index 2953e76c58..c638369a5a 100644
--- a/bsp/tm4c129x/applications/board.c
+++ b/bsp/tm4c129x/applications/board.c
@@ -92,7 +92,7 @@ void rt_hw_board_init()
     
     /*init uart device*/		
     rt_hw_uart_init();
-    //redirect RTT stdio to CONSOLE device
+		//redirect RTT stdio to CONSOLE device
     rt_console_set_device(RT_CONSOLE_DEVICE_NAME);
     //
     // Enable interrupts to the processor.
diff --git a/bsp/tm4c129x/drivers/drv_eth.c b/bsp/tm4c129x/drivers/drv_eth.c
deleted file mode 100644
index ea4813be00..0000000000
--- a/bsp/tm4c129x/drivers/drv_eth.c
+++ /dev/null
@@ -1,1446 +0,0 @@
-/*
- * File      : drv_eth.c
- * This file is part of RT-Thread RTOS
- * COPYRIGHT (C) 2009-2013 RT-Thread Develop Team
- *
- * The license and distribution terms for this file may be
- * found in the file LICENSE in this distribution or at
- * http://www.rt-thread.org/license/LICENSE
- *
- * Change Logs:
- * Date           Author       Notes
- * 2014-07-25     ArdaFu       Port to TM4C129X
- */
-
-/**
- * @file - tivaif.c
- * lwIP Ethernet interface for Stellaris LM4F Devices
- *
- */
-
-/**
- * Copyright (c) 2001-2004 Swedish Institute of Computer Science.
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without modification,
- * are permitted provided that the following conditions are met:
- *
- * 1. Redistributions of source code must retain the above copyright notice,
- *    this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright notice,
- *    this list of conditions and the following disclaimer in the documentation
- *    and/or other materials provided with the distribution.
- * 3. The name of the author may not be used to endorse or promote products
- *    derived from this software without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
- * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
- * MERCHANTABILITY AND FITNESS FOR A PARTICui32AR PURPOSE ARE DISCLAIMED. IN NO EVENT
- * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
- * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
- * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
- * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
- * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
- * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
- * OF SUCH DAMAGE.
- *
- * This file is part of the lwIP TCP/IP stack.
- *
- * Author: Adam Dunkels <[email protected]>
- *
- */
-
-/**
- * Copyright (c) 2008-2012 Texas Instruments Incorporated
- *
- * This file is derived from the ``ethernetif.c'' skeleton Ethernet network
- * interface driver for lwIP.
- *
- */
-
-#include "lwip/opt.h"
-#include "lwip/def.h"
-#include "lwip/mem.h"
-#include "lwip/pbuf.h"
-#include "lwip/sys.h"
-#include <lwip/stats.h>
-#include <lwip/snmp.h>
-#include "lwip/tcpip.h"
-#include "netif/etharp.h"
-#include "netif/ppp_oe.h"
-
-
-/**
- * Sanity Check:  This interface driver will NOT work if the following defines
- * are incorrect.
- *
- */
-#if (PBUF_LINK_HLEN != 16)
-#error "PBUF_LINK_HLEN must be 16 for this interface driver!"
-#endif
-#if (ETH_PAD_SIZE != 0)
-#error "ETH_PAD_SIZE must be 0 for this interface driver!"
-#endif
-#if (!SYS_LIGHTWEIGHT_PROT)
-#error "SYS_LIGHTWEIGHT_PROT must be enabled for this interface driver!"
-#endif
-
-/**
- * Set the physical address of the PHY we will be using if this is not
- * specified in lwipopts.h.  We assume 0 for the internal PHY.
- */
-#ifndef PHY_PHYS_ADDR
-#define PHY_PHYS_ADDR 0
-#endif
-
-#if 0
-#ifndef EMAC_PHY_CONFIG
-#define EMAC_PHY_CONFIG (EMAC_PHY_TYPE_INTERNAL | EMAC_PHY_INT_MDIX_EN |      \
-                         EMAC_PHY_AN_100B_T_FULL_DUPLEX)
-#endif
-#endif
-
-/**
- * If necessary, set the defaui32t number of transmit and receive DMA descriptors
- * used by the Ethernet MAC.
- *
- */
-#ifndef NUM_RX_DESCRIPTORS
-#define NUM_RX_DESCRIPTORS 4
-#endif
-
-#ifndef NUM_TX_DESCRIPTORS
-#define NUM_TX_DESCRIPTORS 8
-#endif
-
-/**
- * Setup processing for PTP (IEEE-1588).
- *
- */
-#if LWIP_PTPD
-extern uint32_t g_ui32SysClk;
-extern uint32_t g_ui32PTPTickRate;
-extern void lwIPHostGetTime(u32_t *time_s, u32_t *time_ns);
-#endif
-
-/**
- * Stellaris DriverLib Header Files required for this interface driver.
- *
- */
-#include <stdint.h>
-#include <stdbool.h>
-#include "inc/hw_emac.h"
-#include "inc/hw_ints.h"
-#include "inc/hw_memmap.h"
-#include "inc/hw_types.h"
-
-#include "driverlib/emac.h"
-#include "driverlib/interrupt.h"
-#include "driverlib/sysctl.h"
-#include "driverlib/flash.h"
-#include "driverlib/interrupt.h"
-
-#include "driverlib/pin_map.h"
-#include "driverlib/rom_map.h"
-#include "driverlib/gpio.h"
-
-#include <netif/ethernetif.h>
-#include "lwipopts.h"
-#include "drv_eth.h"
-
-/**
- * A structure used to keep track of driver state and error counts.
- */
-typedef struct {
-    uint32_t ui32TXCount;
-    uint32_t ui32TXCopyCount;
-    uint32_t ui32TXCopyFailCount;
-    uint32_t ui32TXNoDescCount;
-    uint32_t ui32TXBufQueuedCount;
-    uint32_t ui32TXBufFreedCount;
-    uint32_t ui32RXBufReadCount;
-    uint32_t ui32RXPacketReadCount;
-    uint32_t ui32RXPacketErrCount;
-    uint32_t ui32RXPacketCBErrCount;
-    uint32_t ui32RXNoBufCount;
-}
-tDriverStats;
-
-tDriverStats g_sDriverStats;
-
-#ifdef DEBUG
-/**
- * Note: This rather weird construction where we invoke the macro with the
- * name of the field minus its Hungarian prefix is a workaround for a problem
- * experienced with GCC which does not like concatenating tokens after an
- * operator, specifically '.' or '->', in a macro.
- */
-#define DRIVER_STATS_INC(x) do{ g_sDriverStats.ui32##x++; } while(0)
-#define DRIVER_STATS_DEC(x) do{ g_sDriverStats.ui32##x--; } while(0)
-#define DRIVER_STATS_ADD(x, inc) do{ g_sDriverStats.ui32##x += (inc); } while(0)
-#define DRIVER_STATS_SUB(x, dec) do{ g_sDriverStats.ui32##x -= (dec); } while(0)
-#else
-#define DRIVER_STATS_INC(x)
-#define DRIVER_STATS_DEC(x)
-#define DRIVER_STATS_ADD(x, inc)
-#define DRIVER_STATS_SUB(x, dec)
-#endif
-
-/**
- *  Helper struct holding a DMA descriptor and the pbuf it currently refers
- *  to.
- */
-typedef struct {
-  tEMACDMADescriptor Desc;
-  struct pbuf *pBuf;
-} tDescriptor;
-
-typedef struct {
-    tDescriptor *pDescriptors;
-    uint32_t ui32NumDescs;
-    uint32_t ui32Read;
-    uint32_t ui32Write;
-} tDescriptorList;
-
-/**
- * Helper struct to hold private data used to operate your ethernet interface.
- * Keeping the ethernet address of the MAC in this struct is not necessary
- * as it is already kept in the struct netif.
- * But this is only an example, anyway...
- */
-typedef struct {
-  struct eth_addr *ethaddr;
-  /* Add whatever per-interface state that is needed here. */
-  tDescriptorList *pTxDescList;
-  tDescriptorList *pRxDescList;
-} tStellarisIF;
-
-/**
- * Global variable for this interface's private data.  Needed to allow
- * the interrupt handlers access to this information outside of the
- * context of the lwIP netif.
- *
- */
-tDescriptor g_pTxDescriptors[NUM_TX_DESCRIPTORS];
-tDescriptor g_pRxDescriptors[NUM_RX_DESCRIPTORS];
-tDescriptorList g_TxDescList = {
-    g_pTxDescriptors, NUM_TX_DESCRIPTORS, 0, 0
-};
-tDescriptorList g_RxDescList = {
-    g_pRxDescriptors, NUM_RX_DESCRIPTORS, 0, 0
-};
-static tStellarisIF g_StellarisIFData = {
-    0, &g_TxDescList, &g_RxDescList
-};
-
-/**
- * Interrupt counters (for debug purposes).
- */
-volatile uint32_t g_ui32NormalInts;
-volatile uint32_t g_ui32AbnormalInts;
-
-/**
- * A macro which determines whether a pointer is within the SRAM address
- * space and, hence, points to a buffer that the Ethernet MAC can directly
- * DMA from.
- */
-#define PTR_SAFE_FOR_EMAC_DMA(ptr) (((uint32_t)(ptr) >= 0x2000000) &&   \
-                                    ((uint32_t)(ptr) < 0x20070000))
-
-
-typedef struct 
-{
-	/* inherit from ethernet device */
-	struct eth_device parent;
-	tStellarisIF* dma_if;
-	/* for rx_thread async get pbuf */
-	rt_mailbox_t rx_pbuf_mb;
-} net_device;
-typedef net_device* net_device_t; 
-
-static char               rx_pbuf_mb_pool[8*4];
-static struct rt_mailbox  eth_rx_pbuf_mb;
-static net_device         eth_dev_entry;
-static net_device_t       eth_dev = &eth_dev_entry;
-
-/**
- * Initialize the transmit and receive DMA descriptor lists.
- */
-void
-InitDMADescriptors(void)
-{
-    uint32_t ui32Loop;
-
-    /* Transmit list -  mark all descriptors as not owned by the hardware */
-   for(ui32Loop = 0; ui32Loop < NUM_TX_DESCRIPTORS; ui32Loop++)
-   {
-       g_pTxDescriptors[ui32Loop].pBuf = (struct pbuf *)0;
-       g_pTxDescriptors[ui32Loop].Desc.ui32Count = 0;
-       g_pTxDescriptors[ui32Loop].Desc.pvBuffer1 = 0;
-       g_pTxDescriptors[ui32Loop].Desc.DES3.pLink =
-               ((ui32Loop == (NUM_TX_DESCRIPTORS - 1)) ?
-               &g_pTxDescriptors[0].Desc : &g_pTxDescriptors[ui32Loop + 1].Desc);
-       g_pTxDescriptors[ui32Loop].Desc.ui32CtrlStatus = DES0_TX_CTRL_INTERRUPT |
-               DES0_TX_CTRL_CHAINED | DES0_TX_CTRL_IP_ALL_CKHSUMS;
-
-   }
-
-   g_TxDescList.ui32Read = 0;
-   g_TxDescList.ui32Write = 0;
-
-
-   /* Receive list -  tag each descriptor with a pbuf and set all fields to
-    * allow packets to be received.
-    */
-  for(ui32Loop = 0; ui32Loop < NUM_RX_DESCRIPTORS; ui32Loop++)
-  {
-      g_pRxDescriptors[ui32Loop].pBuf = pbuf_alloc(PBUF_RAW, PBUF_POOL_BUFSIZE,
-                                                 PBUF_POOL);
-      g_pRxDescriptors[ui32Loop].Desc.ui32Count = DES1_RX_CTRL_CHAINED;
-      if(g_pRxDescriptors[ui32Loop].pBuf)
-      {
-          /* Set the DMA to write directly into the pbuf payload. */
-          g_pRxDescriptors[ui32Loop].Desc.pvBuffer1 =
-                  g_pRxDescriptors[ui32Loop].pBuf->payload;
-          g_pRxDescriptors[ui32Loop].Desc.ui32Count |=
-             (g_pRxDescriptors[ui32Loop].pBuf->len << DES1_RX_CTRL_BUFF1_SIZE_S);
-          g_pRxDescriptors[ui32Loop].Desc.ui32CtrlStatus = DES0_RX_CTRL_OWN;
-      }
-      else
-      {
-          LWIP_DEBUGF(NETIF_DEBUG, ("tivaif_init: pbuf_alloc error\n"));
-
-          /* No pbuf available so leave the buffer pointer empty. */
-          g_pRxDescriptors[ui32Loop].Desc.pvBuffer1 = 0;
-          g_pRxDescriptors[ui32Loop].Desc.ui32CtrlStatus = 0;
-      }
-      g_pRxDescriptors[ui32Loop].Desc.DES3.pLink =
-              ((ui32Loop == (NUM_RX_DESCRIPTORS - 1)) ?
-              &g_pRxDescriptors[0].Desc : &g_pRxDescriptors[ui32Loop + 1].Desc);
-  }
-
-  g_TxDescList.ui32Read = 0;
-  g_TxDescList.ui32Write = 0;
-
-  //
-  // Set the descriptor pointers in the hardware.
-  //
-  EMACRxDMADescriptorListSet(EMAC0_BASE, &g_pRxDescriptors[0].Desc);
-  EMACTxDMADescriptorListSet(EMAC0_BASE, &g_pTxDescriptors[0].Desc);
-}
-
-/**
- * In this function, the hardware should be initialized.
- * Called from tivaif_init().
- *
- * @param netif the already initialized lwip network interface structure
- *        for this ethernetif
- */
-static void
-tivaif_hwinit(struct netif *psNetif)
-{
-  uint16_t ui16Val;
-
-  /* Initialize the DMA descriptors. */
-  InitDMADescriptors();
-
-  /* Clear any stray PHY interrupts that may be set. */
-  ui16Val = EMACPHYRead(EMAC0_BASE, PHY_PHYS_ADDR, EPHY_MISR1);
-  ui16Val = EMACPHYRead(EMAC0_BASE, PHY_PHYS_ADDR, EPHY_MISR2);
-
-  /* Configure and enable the link status change interrupt in the PHY. */
-  ui16Val = EMACPHYRead(EMAC0_BASE, PHY_PHYS_ADDR, EPHY_SCR);
-  ui16Val |= (EPHY_SCR_INTEN_EXT | EPHY_SCR_INTOE_EXT);
-  EMACPHYWrite(EMAC0_BASE, PHY_PHYS_ADDR, EPHY_SCR, ui16Val);
-  EMACPHYWrite(EMAC0_BASE, PHY_PHYS_ADDR, EPHY_MISR1, (EPHY_MISR1_LINKSTATEN |
-               EPHY_MISR1_SPEEDEN | EPHY_MISR1_DUPLEXMEN | EPHY_MISR1_ANCEN));
-
-  /* Read the PHY interrupt status to clear any stray events. */
-  ui16Val = EMACPHYRead(EMAC0_BASE, PHY_PHYS_ADDR, EPHY_MISR1);
-
-  /**
-   * Set MAC filtering options.  We receive all broadcast and mui32ticast
-   * packets along with those addressed specifically for us.
-   */
-  EMACFrameFilterSet(EMAC0_BASE, (EMAC_FRMFILTER_HASH_AND_PERFECT |
-                     EMAC_FRMFILTER_PASS_MULTICAST));
-
-#if LWIP_PTPD
-  //
-  // Enable timestamping on all received packets.
-  //
-  // We set the fine clock adjustment mode and configure the subsecond
-  // increment to half the 25MHz PTPD clock.  This will give us maximum control
-  // over the clock rate adjustment and keep the arithmetic easy later.  It
-  // should be possible to synchronize with higher accuracy than this with
-  // appropriate juggling of the subsecond increment count and the addend
-  // register value, though.
-  //
-  EMACTimestampConfigSet(EMAC0_BASE, (EMAC_TS_ALL_RX_FRAMES |
-                         EMAC_TS_DIGITAL_ROLLOVER |
-                         EMAC_TS_PROCESS_IPV4_UDP | EMAC_TS_ALL |
-                         EMAC_TS_PTP_VERSION_1 | EMAC_TS_UPDATE_FINE),
-                         (1000000000 / (25000000 / 2)));
-  EMACTimestampAddendSet(EMAC0_BASE, 0x80000000);
-  EMACTimestampEnable(EMAC0_BASE);
-#endif
-
-  /* Clear any pending MAC interrupts. */
-  EMACIntClear(EMAC0_BASE, EMACIntStatus(EMAC0_BASE, false));
-
-  /* Enable the Ethernet MAC transmitter and receiver. */
-  EMACTxEnable(EMAC0_BASE);
-  EMACRxEnable(EMAC0_BASE);
-
-  /* Enable the Ethernet RX and TX interrupt source. */
-  EMACIntEnable(EMAC0_BASE, (EMAC_INT_RECEIVE | EMAC_INT_TRANSMIT |
-                EMAC_INT_TX_STOPPED | EMAC_INT_RX_NO_BUFFER |
-                EMAC_INT_RX_STOPPED | EMAC_INT_PHY));
-
-  /* Enable the Ethernet interrupt. */
-  IntEnable(INT_EMAC0);
-
-  /* Enable all processor interrupts. */
-  IntMasterEnable();
-
-  /* Tell the PHY to start an auto-negotiation cycle. */
-  EMACPHYWrite(EMAC0_BASE, PHY_PHYS_ADDR, EPHY_BMCR, (EPHY_BMCR_ANEN |
-               EPHY_BMCR_RESTARTAN));
-}
-
-#ifdef DEBUG
-/**
- * Dump the chain of pbuf pointers to the debug output.
- */
-void
-tivaif_trace_pbuf(const char *pcTitle, struct pbuf *p)
-{
-    LWIP_DEBUGF(NETIF_DEBUG, ("%s %08x (%d, %d)", pcTitle, p, p->tot_len,
-                p->len));
-
-    do
-    {
-        p = p->next;
-        if(p)
-        {
-            LWIP_DEBUGF(NETIF_DEBUG, ("->%08x(%d)", p, p->len));
-        }
-        else
-        {
-            LWIP_DEBUGF(NETIF_DEBUG, ("->%08x", p));
-        }
-
-    } while((p != NULL) && (p->tot_len != p->len));
-
-    LWIP_DEBUGF(NETIF_DEBUG, ("\n"));
-}
-#endif
-
-/**
- * This function is used to check whether a passed pbuf contains only buffers
- * resident in regions of memory that the Ethernet MAC can access.  If any
- * buffers in the chain are outside a directly-DMAable section of memory,
- * the pbuf is copied to SRAM and a different pointer returned.  If all
- * buffers are safe, the pbuf reference count is incremented and the original
- * pointer returned.
- */
-static struct pbuf *
-tivaif_check_pbuf(struct pbuf *p)
-{
-    struct pbuf *pBuf;
-    rt_err_t Err;
-
-    pBuf = p;
-
-#ifdef DEBUG
-    tivaif_trace_pbuf("Original:", p);
-#endif
-
-    /* Walk the list of buffers in the pbuf checking each. */
-    do
-    {
-        /* Does this pbuf's payload reside in memory that the Ethernet DMA
-         * can access?
-         */
-        if(!PTR_SAFE_FOR_EMAC_DMA(pBuf->payload))
-        {
-            /* This buffer is outside the DMA-able memory space so we need
-             * to copy the pbuf.
-             */
-            pBuf = pbuf_alloc(PBUF_RAW, p->tot_len, PBUF_POOL);
-
-            /* If we got a new pbuf... */
-            if(pBuf)
-            {
-                /* ...copy the old pbuf into the new one. */
-                Err = pbuf_copy(pBuf, p);
-
-                /* If we failed to copy the pbuf, free the newly allocated one
-                 * and make sure we return a NULL to show a problem.
-                 */
-                if(Err != RT_EOK)
-                {
-                    DRIVER_STATS_INC(TXCopyFailCount);
-                    pbuf_free(pBuf);
-                    pBuf = NULL;
-                }
-                else
-                {
-#ifdef DEBUG
-                    tivaif_trace_pbuf("Copied:", pBuf);
-#endif
-                    DRIVER_STATS_INC(TXCopyCount);
-
-                    /* Reduce the reference count on the original pbuf since
-                     * we're not going to hold on to it after returning from
-                     * tivaif_transmit.  Note that we already bumped
-                     * the reference count at the top of tivaif_transmit.
-                     */
-                    pbuf_free(p);
-                }
-            }
-
-            /* Send back the new pbuf pointer or NULL if an error occurred. */
-            return(pBuf);
-        }
-
-        /* Move on to the next buffer in the queue */
-        pBuf = pBuf->next;
-    }
-    while(pBuf);
-
-    /**
-     * If we get here, the passed pbuf can be safely used without needing to
-     * be copied.
-     */
-    return(p);
-}
-
-/**
- * This function should do the actual transmission of the packet. The packet is
- * contained in the pbuf that is passed to the function. This pbuf might be
- * chained.
- *
- * @param psNetif the lwip network interface structure for this ethernetif
- * @param p the MAC packet to send (e.g. IP packet including MAC addresses and type)
- * @return RT_EOK if the packet coui32d be sent
- *         an err_t value if the packet coui32dn't be sent
- */
-static rt_err_t
-tivaif_transmit(net_device_t dev, struct pbuf *p)
-{
-  tStellarisIF *pIF;
-  tDescriptor *pDesc;
-  struct pbuf *pBuf;
-  uint32_t ui32NumChained, ui32NumDescs;
-  bool bFirst;
-  SYS_ARCH_DECL_PROTECT(lev);
-
-  LWIP_DEBUGF(NETIF_DEBUG, ("tivaif_transmit 0x%08x, len %d\n", p,
-              p->tot_len));
-
-  /**
-   * This entire function must run within a "critical section" to preserve
-   * the integrity of the transmit pbuf queue.
-   */
-  SYS_ARCH_PROTECT(lev);
-
-  /* Update our transmit attempt counter. */
-  DRIVER_STATS_INC(TXCount);
-
-  /**
-   * Increase the reference count on the packet provided so that we can
-   * hold on to it until we are finished transmitting its content.
-   */
-  pbuf_ref(p);
-
-  /**
-   * Determine whether all buffers passed are within SRAM and, if not, copy
-   * the pbuf into SRAM-resident buffers so that the Ethernet DMA can access
-   * the data.
-   */
-  p = tivaif_check_pbuf(p);
-
-  /* Make sure we still have a valid buffer (it may have been copied) */
-  if(!p)
-  {
-      LINK_STATS_INC(link.memerr);
-      SYS_ARCH_UNPROTECT(lev);
-      return(-RT_ENOMEM);
-  }
-
-  /* Get our state data from the netif structure we were passed. */
-  //pIF = (tStellarisIF *)psNetif->state;
-  pIF = dev->dma_if;
-  
-  /* Make sure that the transmit descriptors are not all in use */
-  pDesc = &(pIF->pTxDescList->pDescriptors[pIF->pTxDescList->ui32Write]);
-  if(pDesc->pBuf)
-  {
-      /**
-       * The current write descriptor has a pbuf attached to it so this
-       * implies that the ring is fui32l. Reject this transmit request with a
-       * memory error since we can't satisfy it just now.
-       */
-      pbuf_free(p);
-      LINK_STATS_INC(link.memerr);
-      DRIVER_STATS_INC(TXNoDescCount);
-      SYS_ARCH_UNPROTECT(lev);
-      return (-RT_ENOMEM);
-  }
-
-  /* How many pbufs are in the chain passed? */
-  ui32NumChained = (uint32_t)pbuf_clen(p);
-
-  /* How many free transmit descriptors do we have? */
-  ui32NumDescs = (pIF->pTxDescList->ui32Read > pIF->pTxDescList->ui32Write) ?
-          (pIF->pTxDescList->ui32Read - pIF->pTxDescList->ui32Write) :
-          ((NUM_TX_DESCRIPTORS - pIF->pTxDescList->ui32Write) +
-           pIF->pTxDescList->ui32Read);
-
-  /* Do we have enough free descriptors to send the whole packet? */
-  if(ui32NumDescs < ui32NumChained)
-  {
-      /* No - we can't transmit this whole packet so return an error. */
-      pbuf_free(p);
-      LINK_STATS_INC(link.memerr);
-      DRIVER_STATS_INC(TXNoDescCount);
-      SYS_ARCH_UNPROTECT(lev);
-      return (-RT_ENOMEM);
-  }
-
-  /* Tag the first descriptor as the start of the packet. */
-  bFirst = true;
-  pDesc->Desc.ui32CtrlStatus = DES0_TX_CTRL_FIRST_SEG;
-
-  /* Here, we know we can send the packet so write it to the descriptors */
-  pBuf = p;
-
-  while(ui32NumChained)
-  {
-      /* Get a pointer to the descriptor we will write next. */
-      pDesc = &(pIF->pTxDescList->pDescriptors[pIF->pTxDescList->ui32Write]);
-
-      /* Fill in the buffer pointer and length */
-      pDesc->Desc.ui32Count = (uint32_t)pBuf->len;
-      pDesc->Desc.pvBuffer1 = pBuf->payload;
-
-      /* Tag the first descriptor as the start of the packet. */
-      if(bFirst)
-      {
-          bFirst = false;
-          pDesc->Desc.ui32CtrlStatus = DES0_TX_CTRL_FIRST_SEG;
-      }
-      else
-      {
-          pDesc->Desc.ui32CtrlStatus = 0;
-      }
-
-      pDesc->Desc.ui32CtrlStatus |= (DES0_TX_CTRL_IP_ALL_CKHSUMS |
-                                     DES0_TX_CTRL_CHAINED);
-
-      /* Decrement our descriptor counter, move on to the next buffer in the
-       * pbuf chain. */
-      ui32NumChained--;
-      pBuf = pBuf->next;
-
-      /* Update the descriptor list write index. */
-      pIF->pTxDescList->ui32Write++;
-      if(pIF->pTxDescList->ui32Write == NUM_TX_DESCRIPTORS)
-      {
-          pIF->pTxDescList->ui32Write = 0;
-      }
-
-      /* If this is the last descriptor, mark it as the end of the packet. */
-      if(!ui32NumChained)
-      {
-          pDesc->Desc.ui32CtrlStatus |= (DES0_TX_CTRL_LAST_SEG |
-                                         DES0_TX_CTRL_INTERRUPT);
-
-          /* Tag the descriptor with the original pbuf pointer. */
-          pDesc->pBuf = p;
-      }
-      else
-      {
-          /* Set the lsb of the pbuf pointer.  We use this as a signal that
-           * we should not free the pbuf when we are walking the descriptor
-           * list while processing the transmit interrupt.  We only free the
-           * pbuf when processing the last descriptor used to transmit its
-           * chain.
-           */
-          pDesc->pBuf = (struct pbuf *)((uint32_t)p + 1);
-      }
-
-      DRIVER_STATS_INC(TXBufQueuedCount);
-
-      /* Hand the descriptor over to the hardware. */
-      pDesc->Desc.ui32CtrlStatus |= DES0_TX_CTRL_OWN;
-  }
-
-  /* Tell the transmitter to start (in case it had stopped). */
-  EMACTxDMAPollDemand(EMAC0_BASE);
-
-  /* Update lwIP statistics */
-  LINK_STATS_INC(link.xmit);
-
-  SYS_ARCH_UNPROTECT(lev);
-
-  return(RT_EOK);
-}
-
-/**
- * This function will process all transmit descriptors and free pbufs attached
- * to any that have been transmitted since we last checked.
- *
- * This function is called only from the Ethernet interrupt handler.
- *
- * @param netif the lwip network interface structure for this ethernetif
- * @return None.
- */
-static void
-tivaif_process_transmit(tStellarisIF *pIF)
-{
-    tDescriptorList *pDescList;
-    uint32_t ui32NumDescs;
-
-    /* Get a pointer to the transmit descriptor list. */
-    pDescList = pIF->pTxDescList;
-
-    /* Walk the list until we have checked all descriptors or we reach the
-     * write pointer or find a descriptor that the hardware is still working
-     * on.
-     */
-    for(ui32NumDescs = 0; ui32NumDescs < pDescList->ui32NumDescs; ui32NumDescs++)
-    {
-        /* Has the buffer attached to this descriptor been transmitted? */
-        if(pDescList->pDescriptors[pDescList->ui32Read].Desc.ui32CtrlStatus &
-           DES0_TX_CTRL_OWN)
-        {
-            /* No - we're finished. */
-            break;
-        }
-
-        /* Does this descriptor have a buffer attached to it? */
-        if(pDescList->pDescriptors[pDescList->ui32Read].pBuf)
-        {
-            /* Yes - free it if it's not marked as an intermediate pbuf */
-            if(!((uint32_t)(pDescList->pDescriptors[pDescList->ui32Read].pBuf) & 1))
-            {
-                pbuf_free(pDescList->pDescriptors[pDescList->ui32Read].pBuf);
-                DRIVER_STATS_INC(TXBufFreedCount);
-            }
-            pDescList->pDescriptors[pDescList->ui32Read].pBuf = NULL;
-        }
-        else
-        {
-            /* If the descriptor has no buffer, we are finished. */
-            break;
-        }
-
-        /* Move on to the next descriptor. */
-        pDescList->ui32Read++;
-        if(pDescList->ui32Read == pDescList->ui32NumDescs)
-        {
-            pDescList->ui32Read = 0;
-        }
-    }
-}
-
-/**
- * This function will process all receive descriptors that contain newly read
- * data and pass complete frames up the lwIP stack as they are found.  The
- * timestamp of the packet will be placed into the pbuf structure if PTPD is
- * enabled.
- *
- * This function is called only from the Ethernet interrupt handler.
- *
- * @param psNetif the lwip network interface structure for this ethernetif
- * @return None.
- */
-static void
-tivaif_receive(net_device_t dev)
-{
-  tDescriptorList *pDescList;
-  tStellarisIF *pIF;
-  struct pbuf *pBuf;
-  uint32_t ui32DescEnd;
-
-  /* Get a pointer to our state data */
-  pIF = dev->dma_if;
-
-  /* Get a pointer to the receive descriptor list. */
-  pDescList = pIF->pRxDescList;
-
-  /* Start with a NULL pbuf so that we don't try to link chain the first
-   * time round.
-   */
-  pBuf = NULL;
-
-  /* Determine where we start and end our walk of the descriptor list */
-   ui32DescEnd = pDescList->ui32Read ? (pDescList->ui32Read - 1) : (pDescList->ui32NumDescs - 1);
-
-  /* Step through the descriptors that are marked for CPU attention. */
-  while(pDescList->ui32Read != ui32DescEnd)
-  {
-      /* Does the current descriptor have a buffer attached to it? */
-      if(pDescList->pDescriptors[pDescList->ui32Read].pBuf)
-      {
-          /* Yes - determine if the host has filled it yet. */
-          if(pDescList->pDescriptors[pDescList->ui32Read].Desc.ui32CtrlStatus &
-             DES0_RX_CTRL_OWN)
-          {
-              /* The DMA engine still owns the descriptor so we are finished */
-              break;
-          }
-
-          DRIVER_STATS_INC(RXBufReadCount);
-
-          /* If this descriptor contains the end of the packet, fix up the
-           * buffer size accordingly.
-           */
-          if(pDescList->pDescriptors[pDescList->ui32Read].Desc.ui32CtrlStatus &
-             DES0_RX_STAT_LAST_DESC)
-          {
-              /* This is the last descriptor for the frame so fix up the
-               * length.  It is safe for us to modify the internal fields
-               * directly here (rather than calling pbuf_realloc) since we
-               * know each of these pbufs is never chained.
-               */
-              pDescList->pDescriptors[pDescList->ui32Read].pBuf->len =
-                       (pDescList->pDescriptors[pDescList->ui32Read].Desc.ui32CtrlStatus &
-                        DES0_RX_STAT_FRAME_LENGTH_M) >>
-                        DES0_RX_STAT_FRAME_LENGTH_S;
-              pDescList->pDescriptors[pDescList->ui32Read].pBuf->tot_len =
-                        pDescList->pDescriptors[pDescList->ui32Read].pBuf->len;
-          }
-
-          if(pBuf)
-          {
-              /* Link this pbuf to the last one we looked at since this buffer
-               * is a continuation of an existing frame (split across mui32tiple
-               * pbufs).  Note that we use pbuf_cat() here rather than
-               * pbuf_chain() since we don't want to increase the reference
-               * count of either pbuf - we only want to link them together.
-               */
-              pbuf_cat(pBuf, pDescList->pDescriptors[pDescList->ui32Read].pBuf);
-              pDescList->pDescriptors[pDescList->ui32Read].pBuf = pBuf;
-          }
-
-          /* Remember the buffer associated with this descriptor. */
-          pBuf = pDescList->pDescriptors[pDescList->ui32Read].pBuf;
-
-          /* Is this the last descriptor for the current frame? */
-          if(pDescList->pDescriptors[pDescList->ui32Read].Desc.ui32CtrlStatus &
-             DES0_RX_STAT_LAST_DESC)
-          {
-              /* Yes - does the frame contain errors? */
-              if(pDescList->pDescriptors[pDescList->ui32Read].Desc.ui32CtrlStatus &
-                 DES0_RX_STAT_ERR)
-              {
-                  /* This is a bad frame so discard it and update the relevant
-                   * statistics.
-                   */
-                  LWIP_DEBUGF(NETIF_DEBUG, ("tivaif_receive: packet error\n"));
-                  pbuf_free(pBuf);
-                  LINK_STATS_INC(link.drop);
-                  DRIVER_STATS_INC(RXPacketErrCount);
-              }
-              else
-              {
-                  /* This is a good frame so pass it up the stack. */
-                  LINK_STATS_INC(link.recv);
-                  DRIVER_STATS_INC(RXPacketReadCount);
-
-#if LWIP_PTPD
-                  /* Place the timestamp in the PBUF if PTPD is enabled */
-                  pBuf->time_s =
-                       pDescList->pDescriptors[pDescList->ui32Read].Desc.ui32IEEE1588TimeHi;
-                  pBuf->time_ns =
-                       pDescList->pDescriptors[pDescList->ui32Read].Desc.ui32IEEE1588TimeLo;
-#endif
-
-#if NO_SYS
-                  if(ethernet_input(pBuf, psNetif) != RT_EOK)
-                  {
-#else
-                  //if(tcpip_input(pBuf, psNetif) != RT_EOK)
-				  if((rt_mb_send(dev->rx_pbuf_mb, (rt_uint32_t)pBuf) != RT_EOK) ||
-					(eth_device_ready(&(dev->parent)) != RT_EOK))
-                  {
-#endif
-                      /* drop the packet */
-                      LWIP_DEBUGF(NETIF_DEBUG, ("tivaif_input: input error\n"));
-                      pbuf_free(pBuf);
-
-                      /* Adjust the link statistics */
-                      LINK_STATS_INC(link.memerr);
-                      LINK_STATS_INC(link.drop);
-                      DRIVER_STATS_INC(RXPacketCBErrCount);
-                  }
-
-                  /* We're finished with this packet so make sure we don't try
-                   * to link the next buffer to it.
-                   */
-                  pBuf = NULL;
-              }
-          }
-      }
-
-      /* Allocate a new buffer for this descriptor */
-      pDescList->pDescriptors[pDescList->ui32Read].pBuf = pbuf_alloc(PBUF_RAW,
-                                                        PBUF_POOL_BUFSIZE,
-                                                        PBUF_POOL);
-      pDescList->pDescriptors[pDescList->ui32Read].Desc.ui32Count =
-                                                        DES1_RX_CTRL_CHAINED;
-      if(pDescList->pDescriptors[pDescList->ui32Read].pBuf)
-      {
-          /* We got a buffer so fill in the payload pointer and size. */
-          pDescList->pDescriptors[pDescList->ui32Read].Desc.pvBuffer1 =
-                              pDescList->pDescriptors[pDescList->ui32Read].pBuf->payload;
-          pDescList->pDescriptors[pDescList->ui32Read].Desc.ui32Count |=
-                              (pDescList->pDescriptors[pDescList->ui32Read].pBuf->len <<
-                               DES1_RX_CTRL_BUFF1_SIZE_S);
-
-          /* Give this descriptor back to the hardware */
-          pDescList->pDescriptors[pDescList->ui32Read].Desc.ui32CtrlStatus =
-                              DES0_RX_CTRL_OWN;
-      }
-      else
-      {
-          LWIP_DEBUGF(NETIF_DEBUG, ("tivaif_receive: pbuf_alloc error\n"));
-
-          pDescList->pDescriptors[pDescList->ui32Read].Desc.pvBuffer1 = 0;
-
-          /* Update the stats to show we coui32dn't allocate a pbuf. */
-          DRIVER_STATS_INC(RXNoBufCount);
-          LINK_STATS_INC(link.memerr);
-
-          /* Stop parsing here since we can't leave a broken descriptor in
-           * the chain.
-           */
-          break;
-      }
-
-      /* Move on to the next descriptor in the chain, taking care to wrap. */
-      pDescList->ui32Read++;
-      if(pDescList->ui32Read == pDescList->ui32NumDescs)
-      {
-          pDescList->ui32Read = 0;
-      }
-  }
-}
-
-/**
- * Process interrupts from the PHY.
- *
- * should be called from the Stellaris Ethernet Interrupt Handler.  This
- * function will read packets from the Stellaris Ethernet fifo and place them
- * into a pbuf queue.  If the transmitter is idle and there is at least one packet
- * on the transmit queue, it will place it in the transmit fifo and start the
- * transmitter.
- *
- */
-void
-tivaif_process_phy_interrupt(net_device_t dev)
-{
-    uint16_t ui16Val, ui16Status;
-    uint32_t ui32Config, ui32Mode, ui32RxMaxFrameSize;
-
-    /* Read the PHY interrupt status.  This clears all interrupt sources.
-     * Note that we are only enabling sources in EPHY_MISR1 so we don't
-     * read EPHY_MISR2.
-     */
-    ui16Val = EMACPHYRead(EMAC0_BASE, PHY_PHYS_ADDR, EPHY_MISR1);
-
-	/* 
-	 * Dummy read PHY REG EPHY_BMSR, it will force update the EPHY_STS register
-	 */
-		EMACPHYRead(EMAC0_BASE, PHY_PHYS_ADDR, EPHY_BMSR);
-    /* Read the current PHY status. */
-    ui16Status = EMACPHYRead(EMAC0_BASE, PHY_PHYS_ADDR, EPHY_STS);
-
-    /* Has the link status changed? */
-    if(ui16Val & EPHY_MISR1_LINKSTAT)
-    {
-        /* Is link up or down now? */
-        if(ui16Status & EPHY_STS_LINK)
-        {
-            /* Tell lwIP the link is up. */
-#if NO_SYS
-            netif_set_link_up(psNetif);
-#else
-            //tcpip_callback((tcpip_callback_fn)netif_set_link_up, psNetif);
-			eth_device_linkchange(&(dev->parent), RT_TRUE);
-#endif
-
-            /* In this case we drop through since we may need to reconfigure
-             * the MAC depending upon the speed and half/fui32l-duplex settings.
-             */
-        }
-        else
-        {
-            /* Tell lwIP the link is down */
-#if NO_SYS
-            netif_set_link_down(psNetif);
-#else
-            //tcpip_callback((tcpip_callback_fn)netif_set_link_down, psNetif);
-			eth_device_linkchange(&(dev->parent), RT_FALSE);
-#endif
-        }
-    }
-
-    /* Has the speed or duplex status changed? */
-    if(ui16Val & (EPHY_MISR1_SPEED | EPHY_MISR1_SPEED | EPHY_MISR1_ANC))
-    {
-        /* Get the current MAC configuration. */
-        EMACConfigGet(EMAC0_BASE, &ui32Config, &ui32Mode,
-                        &ui32RxMaxFrameSize);
-
-        /* What speed is the interface running at now?
-         */
-        if(ui16Status & EPHY_STS_SPEED)
-        {
-            /* 10Mbps is selected */
-            ui32Config &= ~EMAC_CONFIG_100MBPS;
-        }
-        else
-        {
-            /* 100Mbps is selected */
-            ui32Config |= EMAC_CONFIG_100MBPS;
-        }
-
-        /* Are we in fui32l- or half-duplex mode? */
-        if(ui16Status & EPHY_STS_DUPLEX)
-        {
-            /* Fui32l duplex. */
-            ui32Config |= EMAC_CONFIG_FULL_DUPLEX;
-        }
-        else
-        {
-            /* Half duplex. */
-            ui32Config &= ~EMAC_CONFIG_FULL_DUPLEX;
-        }
-
-        /* Reconfigure the MAC */
-        EMACConfigSet(EMAC0_BASE, ui32Config, ui32Mode, ui32RxMaxFrameSize);
-    }
-}
-
-/**
- * Process tx and rx packets at the low-level interrupt.
- *
- * should be called from the Stellaris Ethernet Interrupt Handler.  This
- * function will read packets from the Stellaris Ethernet fifo and place them
- * into a pbuf queue.  If the transmitter is idle and there is at least one packet
- * on the transmit queue, it will place it in the transmit fifo and start the
- * transmitter.
- *
- */
-void
-tivaif_interrupt(net_device_t dev, uint32_t ui32Status)
-{
-
-  /* Update our debug interrupt counters. */
-  if(ui32Status & EMAC_INT_NORMAL_INT)
-  {
-      g_ui32NormalInts++;
-  }
-
-  if(ui32Status & EMAC_INT_ABNORMAL_INT)
-  {
-      g_ui32AbnormalInts++;
-  }
-
-  /* Is this an interrupt from the PHY? */
-  if(ui32Status & EMAC_INT_PHY)
-  {
-      tivaif_process_phy_interrupt(dev);
-  }
-
-  /* Process the transmit DMA list, freeing any buffers that have been
-   * transmitted since our last interrupt.
-   */
-  if(ui32Status & EMAC_INT_TRANSMIT)
-  {
-      tivaif_process_transmit(dev->dma_if);
-  }
-
-  /**
-   * Process the receive DMA list and pass all successfui32ly received packets
-   * up the stack.  We also call this function in cases where the receiver has
-   * stalled due to missing buffers since the receive function will attempt to
-   * allocate new pbufs for descriptor entries which have none.
-   */
-  if(ui32Status & (EMAC_INT_RECEIVE | EMAC_INT_RX_NO_BUFFER |
-     EMAC_INT_RX_STOPPED))
-  {
-      tivaif_receive(dev);
-  }
-}
-
-#if NETIF_DEBUG
-/* Print an IP header by using LWIP_DEBUGF
- * @param p an IP packet, p->payload pointing to the IP header
- */
-void
-tivaif_debug_print(struct pbuf *p)
-{
-  struct eth_hdr *ethhdr = (struct eth_hdr *)p->payload;
-  u16_t *plen = (u16_t *)p->payload;
-
-  LWIP_DEBUGF(NETIF_DEBUG, ("ETH header:\n"));
-  LWIP_DEBUGF(NETIF_DEBUG, ("Packet Length:%5"U16_F" \n",*plen));
-  LWIP_DEBUGF(NETIF_DEBUG, ("Destination: %02"X8_F"-%02"X8_F"-%02"X8_F"-%02"X8_F"-%02"X8_F"-%02"X8_F"\n",
-    ethhdr->dest.addr[0],
-    ethhdr->dest.addr[1],
-    ethhdr->dest.addr[2],
-    ethhdr->dest.addr[3],
-    ethhdr->dest.addr[4],
-    ethhdr->dest.addr[5]));
-  LWIP_DEBUGF(NETIF_DEBUG, ("Source: %02"X8_F"-%02"X8_F"-%02"X8_F"-%02"X8_F"-%02"X8_F"-%02"X8_F"\n",
-    ethhdr->src.addr[0],
-    ethhdr->src.addr[1],
-    ethhdr->src.addr[2],
-    ethhdr->src.addr[3],
-    ethhdr->src.addr[4],
-    ethhdr->src.addr[5]));
-  LWIP_DEBUGF(NETIF_DEBUG, ("Packet Type:0x%04"U16_F" \n", ethhdr->type));
-}
-#endif /* NETIF_DEBUG */
-
-void lwIPEthernetIntHandler(void)
-{
-    uint32_t ui32Status;
-#ifdef DEF_INT_TEMPSTAMP
-    uint32_t ui32TimerStatus;
-#endif
-    //
-    // Read and Clear the interrupt.
-    //
-    ui32Status = MAP_EMACIntStatus(EMAC0_BASE, true);
-
-    //
-    // If the interrupt really came from the Ethernet and not our
-    // timer, clear it.
-    //
-    if(ui32Status)
-    {
-        MAP_EMACIntClear(EMAC0_BASE, ui32Status);
-    }
-#ifdef DEF_INT_TEMPSTAMP
-    //
-    // Check to see whether a hardware timer interrupt has been reported.
-    //
-    if(ui32Status & EMAC_INT_TIMESTAMP)
-    {
-        //
-        // Yes - read and clear the timestamp interrupt status.
-        //
-        ui32TimerStatus = EMACTimestampIntStatus(EMAC0_BASE);
-
-        //
-        // If a timer interrupt handler has been registered, call it.
-        //
-        if(g_pfnTimerHandler)
-        {
-            g_pfnTimerHandler(EMAC0_BASE, ui32TimerStatus);
-        }
-    }
-#endif
-    //
-    // The handling of the interrupt is different based on the use of a RTOS.
-    //
-
-    //
-    // No RTOS is being used.  If a transmit/receive interrupt was active,
-    // run the low-level interrupt handler.
-    //
-    if(ui32Status)
-    {
-        tivaif_interrupt(eth_dev, ui32Status);
-    }
-
-    //
-    // Service the lwIP timers.
-    //
-    //lwIPServiceTimers();
-}
-
-
-// OUI:00-12-37 (hex) Texas Instruments, only for test 
-static int tiva_eth_mac_addr_init(void)
-{
-	int retVal =0; 
-	uint32_t ulUser[2];
-	uint8_t mac_addr[6];
-	
-	MAP_FlashUserGet(&ulUser[0], &ulUser[1]);
-	if((ulUser[0] == 0xffffffff) || (ulUser[1] == 0xffffffff))
-	{
-		rt_kprintf("Fail to get mac address from eeprom.\n");
-		rt_kprintf("Using default mac address\n");
-		// OUI:00-12-37 (hex) Texas Instruments, only for test 
-		// Configure the hardware MAC address 
-		ulUser[0] = 0x00371200;
-		ulUser[1] = 0x00563412;
-		//FlashUserSet(ulUser0, ulUser1); 
-		retVal =-1;
-	}
-	
-	
-	//Convert the 24/24 split MAC address from NV ram into a 32/16 split MAC
-	//address needed to program the hardware registers, then program the MAC
-	//address into the Ethernet Controller registers.
-	
-	mac_addr[0] = ((ulUser[0] >>  0) & 0xff);
-	mac_addr[1] = ((ulUser[0] >>  8) & 0xff);
-	mac_addr[2] = ((ulUser[0] >> 16) & 0xff);
-	mac_addr[3] = ((ulUser[1] >>  0) & 0xff);
-	mac_addr[4] = ((ulUser[1] >>  8) & 0xff);
-	mac_addr[5] = ((ulUser[1] >> 16) & 0xff);
-	
-	//
-    // Program the hardware with its MAC address (for filtering).
-    //
-    MAP_EMACAddrSet(EMAC0_BASE, 0, mac_addr);
-	return retVal;
-}
-
-#ifndef EMAC_PHY_CONFIG
-#define EMAC_PHY_CONFIG         (EMAC_PHY_TYPE_INTERNAL |                     \
-                                 EMAC_PHY_INT_MDIX_EN |                       \
-                                 EMAC_PHY_AN_100B_T_FULL_DUPLEX)
-#endif
-
- void tiva_eth_lowlevel_init(void)
-{
-    MAP_SysCtlPeripheralEnable(SYSCTL_PERIPH_GPIOF);
-    //
-    // PF1/PK4/PK6 are used for Ethernet LEDs.
-    //
-    MAP_GPIOPinConfigure(GPIO_PF0_EN0LED0);
-    MAP_GPIOPinConfigure(GPIO_PF4_EN0LED1);
-    GPIOPinTypeEthernetLED(GPIO_PORTF_BASE, GPIO_PIN_0);
-    GPIOPinTypeEthernetLED(GPIO_PORTF_BASE, GPIO_PIN_4);
-	
-    //
-    // Enable the ethernet peripheral.
-    //
-    MAP_SysCtlPeripheralEnable(SYSCTL_PERIPH_EMAC0);
-    MAP_SysCtlPeripheralReset(SYSCTL_PERIPH_EMAC0);
-    //
-    // Enable the internal PHY if it's present and we're being
-    // asked to use it.
-    //
-    if((EMAC_PHY_CONFIG & EMAC_PHY_TYPE_MASK) == EMAC_PHY_TYPE_INTERNAL)
-    {
-        //
-        // We've been asked to configure for use with the internal
-        // PHY.  Is it present?
-        //
-        if(SysCtlPeripheralPresent(SYSCTL_PERIPH_EPHY0))
-        {
-            //
-            // Yes - enable and reset it.
-            //
-            MAP_SysCtlPeripheralEnable(SYSCTL_PERIPH_EPHY0);
-            MAP_SysCtlPeripheralReset(SYSCTL_PERIPH_EPHY0);
-        }
-        else
-        {
-            //
-            // Internal PHY is not present on this part so hang here.
-            //
-			rt_kprintf("Internal PHY is not present on this part.\n");
-            while(1)
-            {
-            }
-        }
-    }
-
-    //
-    // Wait for the MAC to come out of reset.
-    //
-    while(!MAP_SysCtlPeripheralReady(SYSCTL_PERIPH_EMAC0))
-    {
-    }
-
-    //
-    // Configure for use with whichever PHY the user requires.
-    //
-    MAP_EMACPHYConfigSet(EMAC0_BASE, EMAC_PHY_CONFIG);
-
-    //
-    // Initialize the MAC and set the DMA mode.
-    //
-    MAP_EMACInit(EMAC0_BASE, 120000000, //system clock = 120MHz
-                 EMAC_BCONFIG_MIXED_BURST | EMAC_BCONFIG_PRIORITY_FIXED,
-                 4, 4, 0);
-
-    //
-    // Set MAC configuration options.
-    //
-    MAP_EMACConfigSet(EMAC0_BASE, (EMAC_CONFIG_FULL_DUPLEX |
-                                   EMAC_CONFIG_CHECKSUM_OFFLOAD |
-                                   EMAC_CONFIG_7BYTE_PREAMBLE |
-                                   EMAC_CONFIG_IF_GAP_96BITS |
-                                   EMAC_CONFIG_USE_MACADDR0 |
-                                   EMAC_CONFIG_SA_FROM_DESCRIPTOR |
-                                   EMAC_CONFIG_BO_LIMIT_1024),
-                      (EMAC_MODE_RX_STORE_FORWARD |
-                       EMAC_MODE_TX_STORE_FORWARD |
-                       EMAC_MODE_TX_THRESHOLD_64_BYTES |
-                       EMAC_MODE_RX_THRESHOLD_64_BYTES), 0);
-		   
-	EMACIntRegister(EMAC0_BASE, lwIPEthernetIntHandler);
-
-}
-
-static rt_err_t eth_dev_init(rt_device_t device)
-{
-	net_device_t net_dev = (net_device_t)device;
-	struct netif *psNetif = (net_dev->parent.netif);
-	
-	LWIP_ASSERT("psNetif != NULL", (psNetif != NULL));
-
-#if LWIP_NETIF_HOSTNAME
-  /* Initialize interface hostname */
-  psNetif->hostname = "t4mc";
-#endif /* LWIP_NETIF_HOSTNAME */
-
-  /*
-   * Initialize the snmp variables and counters inside the struct netif.
-   * The last argument should be replaced with your link speed, in units
-   * of bits per second.
-   */
-  //NETIF_INIT_SNMP(psNetif, snmp_ifType_ethernet_csmacd, 1000000);
-  
-  net_dev->dma_if = &g_StellarisIFData;
-
-  /* Remember our MAC address. */
-  g_StellarisIFData.ethaddr = (struct eth_addr *)&(psNetif->hwaddr[0]);
-
-  /* Initialize the hardware */
-  tivaif_hwinit(psNetif);
-  return RT_EOK;
-}
-
-/* control the interface */
-static rt_err_t eth_dev_control(rt_device_t dev, rt_uint8_t cmd, void *args)
-{
-	switch(cmd)
-	{
-	case NIOCTL_GADDR:
-		/* get mac address */
-		if(args) 
-			MAP_EMACAddrGet(EMAC0_BASE, 0, (uint8_t*)args);
-		else 
-			return -RT_ERROR;
-		break;
-
-	default :
-		break;
-	}
-
-	return RT_EOK;
-}
-
-/* Open the interface */
-static rt_err_t eth_dev_open(rt_device_t dev, rt_uint16_t oflag)
-{
-	return RT_EOK;
-}
-
-/* Close the interface */
-static rt_err_t eth_dev_close(rt_device_t dev)
-{
-	return RT_EOK;
-}
-
-/* Read */
-static rt_size_t eth_dev_read(rt_device_t dev, rt_off_t pos, void* buffer, rt_size_t size)
-{
-	rt_set_errno(-RT_ENOSYS);
-	return 0;
-}
-
-/* Write */
-static rt_size_t eth_dev_write(rt_device_t dev, rt_off_t pos, const void* buffer, rt_size_t size)
-{
-	rt_set_errno(-RT_ENOSYS);
-	return 0;
-}
-
-static rt_err_t eth_dev_tx(rt_device_t dev, struct pbuf *p)
-{
-	return tivaif_transmit((net_device_t)dev, p);
-}
-
-static struct pbuf* eth_dev_rx(rt_device_t dev)
-{
-	rt_err_t result;
-	rt_uint32_t temp =0;
-	net_device_t net_dev = (net_device_t)dev;
-	result = rt_mb_recv(net_dev->rx_pbuf_mb, &temp, RT_WAITING_NO);
-	
-	return (result == RT_EOK)? (struct pbuf*)temp : RT_NULL;
-}
-
-rt_err_t rt_hw_tiva_eth_init(void)
-{
-	rt_err_t result;
-
-	/* Clock GPIO and etc */
-	tiva_eth_lowlevel_init(); 
-	tiva_eth_mac_addr_init();
-
-	/* init rt-thread device interface */
-	eth_dev->parent.parent.init     = eth_dev_init;
-	eth_dev->parent.parent.open     = eth_dev_open;
-	eth_dev->parent.parent.close    = eth_dev_close;
-	eth_dev->parent.parent.read     = eth_dev_read;
-	eth_dev->parent.parent.write    = eth_dev_write;
-	eth_dev->parent.parent.control  = eth_dev_control;
-	eth_dev->parent.eth_rx          = eth_dev_rx;
-	eth_dev->parent.eth_tx          = eth_dev_tx;
-	
-	result = rt_mb_init(&eth_rx_pbuf_mb, "epbuf",
-                        &rx_pbuf_mb_pool[0], sizeof(rx_pbuf_mb_pool)/4,
-                        RT_IPC_FLAG_FIFO);
-	RT_ASSERT(result == RT_EOK);
-	eth_dev->rx_pbuf_mb = &eth_rx_pbuf_mb;
-	
-	
-	result = eth_device_init(&(eth_dev->parent), "e0");
-	return result;
-}
-
-#ifdef RT_USING_FINSH
-#include "finsh.h"
-void PHY_Read(uint8_t addr)
-{
-	uint16_t data = EMACPHYRead(EMAC0_BASE, PHY_PHYS_ADDR, addr);
-	rt_kprintf("R PHY_REG[0x%02X] = 0x%04X\n", addr, data);
-}
-FINSH_FUNCTION_EXPORT(PHY_Read, (add));
-
-void PHY_Write(uint8_t addr , uint16_t data)
-{
-   EMACPHYWrite(EMAC0_BASE, PHY_PHYS_ADDR, addr, data);
-	rt_kprintf("W PHY_REG[0x%02X] = 0x%04X\n", addr, data);
-}
-FINSH_FUNCTION_EXPORT(PHY_Write, (add, data));
-
-void PHY_SetAdd(uint8_t addr0, uint8_t addr1, uint8_t addr2, 
-                uint8_t addr3, uint8_t addr4, uint8_t addr5)
-{
-	uint32_t ulUser[2];
-	ulUser[0] = (((addr2<<8)|addr1)<<8)|addr0;
-	ulUser[1] = (((addr5<<8)|addr4)<<8)|addr3;
-	
-	MAP_FlashUserSet(ulUser[0], ulUser[1]);
-	MAP_FlashUserSave();
-	rt_kprintf("Save to EEPROM. please reboot.");
-}
-FINSH_FUNCTION_EXPORT(PHY_SetAdd, (add0-add5));
-#endif //RT_USING_FINSH
diff --git a/bsp/tm4c129x/drivers/drv_eth.h b/bsp/tm4c129x/drivers/drv_eth.h
deleted file mode 100644
index 5f27139d5f..0000000000
--- a/bsp/tm4c129x/drivers/drv_eth.h
+++ /dev/null
@@ -1,20 +0,0 @@
-/*
- * File      : drv_eth.c
- * This file is part of RT-Thread RTOS
- * COPYRIGHT (C) 2009-2013 RT-Thread Develop Team
- *
- * The license and distribution terms for this file may be
- * found in the file LICENSE in this distribution or at
- * http://www.rt-thread.org/license/LICENSE
- *
- * Change Logs:
- * Date           Author       Notes
- * 2014-07-25     ArdaFu       Port to TM4C129X
- */
- 
-#ifndef __TIVA_ETH_H__
-#define __TIVA_ETH_H__
-
-rt_err_t rt_hw_tiva_eth_init(void);
-
-#endif
diff --git a/bsp/tm4c129x/libraries/driverlib/emac.c b/bsp/tm4c129x/libraries/driverlib/emac.c
index a9e5d14a65..dcedfdf657 100644
--- a/bsp/tm4c129x/libraries/driverlib/emac.c
+++ b/bsp/tm4c129x/libraries/driverlib/emac.c
@@ -2917,7 +2917,6 @@ EMACPHYRead(uint32_t ui32Base, uint8_t ui8PhyAddr, uint8_t ui8RegAddr)
     //
     HWREG(ui32Base + EMAC_O_MIIADDR) =
         ((HWREG(ui32Base + EMAC_O_MIIADDR) & EMAC_MIIADDR_CR_M) |
-					EMAC_MIIADDR_CR_100_150 |
          (ui8RegAddr << EMAC_MIIADDR_MII_S) |
          (ui8PhyAddr << EMAC_MIIADDR_PLA_S) | EMAC_MIIADDR_MIIB);