ArmPlatformPkg/PrePeiCore/Arm/ArchPrePeiCore.c

   1 /** @file
   2 *  Main file supporting the transition to PEI Core in Normal World for Versatile Express
   3 *
   4 *  Copyright (c) 2012, ARM Limited. All rights reserved.
   5 *
   6 *  SPDX-License-Identifier: BSD-2-Clause-Patent
   7 *
   8 **/
   9
  10 #include <Library/PrintLib.h>
  11 #include <Library/SerialPortLib.h>
  12
  13 #include "PrePeiCore.h"
  14
  15 VOID
  16 PeiCommonExceptionEntry (
  17   IN UINT32 Entry,
  18   IN UINTN LR
  19   )
  20 {
  21   CHAR8           Buffer[100];
  22   UINTN           CharCount;
  23
  24   switch (Entry) {
  25   case 0:
  26     CharCount = AsciiSPrint (Buffer,sizeof (Buffer),"Reset Exception at 0x%X\n\r",LR);
  27     break;
  28   case 1:
  29     CharCount = AsciiSPrint (Buffer,sizeof (Buffer),"Undefined Exception at 0x%X\n\r",LR);
  30     break;
  31   case 2:
  32     CharCount = AsciiSPrint (Buffer,sizeof (Buffer),"SWI Exception at 0x%X\n\r",LR);
  33     break;
  34   case 3:
  35     CharCount = AsciiSPrint (Buffer,sizeof (Buffer),"PrefetchAbort Exception at 0x%X\n\r",LR);
  36     break;
  37   case 4:
  38     CharCount = AsciiSPrint (Buffer,sizeof (Buffer),"DataAbort Exception at 0x%X\n\r",LR);
  39     break;
  40   case 5:
  41     CharCount = AsciiSPrint (Buffer,sizeof (Buffer),"Reserved Exception at 0x%X\n\r",LR);
  42     break;
  43   case 6:
  44     CharCount = AsciiSPrint (Buffer,sizeof (Buffer),"IRQ Exception at 0x%X\n\r",LR);
  45     break;
  46   case 7:
  47     CharCount = AsciiSPrint (Buffer,sizeof (Buffer),"FIQ Exception at 0x%X\n\r",LR);
  48     break;
  49   default:
  50     CharCount = AsciiSPrint (Buffer,sizeof (Buffer),"Unknown Exception at 0x%X\n\r",LR);
  51     break;
  52   }
  53   SerialPortWrite ((UINT8 *) Buffer, CharCount);
  54   while(1);
  55 }
  56