uboot/cpu/ixp/npe/IxEthDBUtil.c
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   1/**
   2 * @file ethUtil.c
   3 *
   4 * @brief Utility functions
   5 * 
   6 * @par
   7 * IXP400 SW Release version 2.0
   8 * 
   9 * -- Copyright Notice --
  10 * 
  11 * @par
  12 * Copyright 2001-2005, Intel Corporation.
  13 * All rights reserved.
  14 * 
  15 * @par
  16 * Redistribution and use in source and binary forms, with or without
  17 * modification, are permitted provided that the following conditions
  18 * are met:
  19 * 1. Redistributions of source code must retain the above copyright
  20 *    notice, this list of conditions and the following disclaimer.
  21 * 2. Redistributions in binary form must reproduce the above copyright
  22 *    notice, this list of conditions and the following disclaimer in the
  23 *    documentation and/or other materials provided with the distribution.
  24 * 3. Neither the name of the Intel Corporation nor the names of its contributors
  25 *    may be used to endorse or promote products derived from this software
  26 *    without specific prior written permission.
  27 * 
  28 * @par
  29 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS ``AS IS''
  30 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  31 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  32 * ARE DISCLAIMED.  IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE
  33 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  34 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  35 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  36 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  37 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  38 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  39 * SUCH DAMAGE.
  40 * 
  41 * @par
  42 * -- End of Copyright Notice --
  43 */
  44
  45
  46#include "IxFeatureCtrl.h"
  47#include "IxEthDB_p.h"
  48
  49IX_ETH_DB_PUBLIC
  50IxEthDBStatus ixEthDBSingleEthNpeCheck(IxEthDBPortId portID)
  51{
  52    /* If not IXP42X A0 stepping, proceed to check for existence of coprocessors */ 
  53    if ((IX_FEATURE_CTRL_SILICON_TYPE_A0 != 
  54        (ixFeatureCtrlProductIdRead() & IX_FEATURE_CTRL_SILICON_STEPPING_MASK))
  55        || (IX_FEATURE_CTRL_DEVICE_TYPE_IXP42X != ixFeatureCtrlDeviceRead ()))
  56    {  
  57        if ((portID == 0) && 
  58            (ixFeatureCtrlComponentCheck(IX_FEATURECTRL_ETH0) ==
  59             IX_FEATURE_CTRL_COMPONENT_DISABLED))
  60        {
  61            return IX_ETH_DB_FAIL;
  62        }
  63
  64        if ((portID == 1) &&
  65            (ixFeatureCtrlComponentCheck(IX_FEATURECTRL_ETH1) ==
  66             IX_FEATURE_CTRL_COMPONENT_DISABLED))
  67        {
  68            return IX_ETH_DB_FAIL;          
  69        }
  70
  71        if ((portID == 2) &&
  72            (ixFeatureCtrlComponentCheck(IX_FEATURECTRL_NPEA_ETH) ==
  73             IX_FEATURE_CTRL_COMPONENT_DISABLED))
  74        {
  75            return IX_ETH_DB_FAIL;          
  76        }
  77    }
  78    
  79    return IX_ETH_DB_SUCCESS;
  80}
  81
  82IX_ETH_DB_PUBLIC
  83BOOL ixEthDBCheckSingleBitValue(UINT32 value)
  84{
  85#if (CPU != SIMSPARCSOLARIS) && !defined (__wince)
  86    UINT32 shift;
  87    
  88    /* use the count-leading-zeros XScale instruction */
  89    __asm__ ("clz %0, %1\n" : "=r" (shift) : "r" (value));
  90    
  91    return ((value << shift) == 0x80000000UL);
  92    
  93#else
  94        
  95    while (value != 0)
  96    {
  97        if (value == 1) return TRUE;
  98        else if ((value & 1) == 1) return FALSE;
  99
 100        value >>= 1;
 101    }
 102    
 103    return FALSE;
 104
 105#endif
 106}
 107
 108const char *mac2string(const unsigned char *mac)
 109{
 110  static char str[19];
 111  
 112  if (mac == NULL)
 113  {
 114    return NULL;
 115  }  
 116
 117  sprintf(str, "%02X:%02X:%02X:%02X:%02X:%02X", mac[0], mac[1], mac[2], mac[3], mac[4], mac[5]);
 118
 119  return str;
 120}
 121