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[/] [openrisc/] [trunk/] [rtos/] [rtems/] [c/] [src/] [lib/] [libbsp/] [powerpc/] [score603e/] [startup/] [spurious.c] - Blame information for rev 562

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Line No. Rev Author Line
1 30 unneback 
/*
2 
 *  Score603e Spurious Trap Handler
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 *
4 
 *  This is just enough of a trap handler to let us know what
5 
 *  the likely source of the trap was.
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 *
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 *  Developed as part of the port of RTEMS to the ERC32 implementation
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 *  of the SPARC by On-Line Applications Research Corporation (OAR)
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 *  under contract to the European Space Agency (ESA).
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 *
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 *  COPYRIGHT (c) 1995. European Space Agency.
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 *
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 *  This terms of the RTEMS license apply to this file.
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 *
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 *  $Id: spurious.c,v 1.2 2001-09-27 12:01:04 chris Exp $
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 */
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#include <bsp.h>
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#include <string.h>
21 
 
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static const char digits[16] = "0123456789abcdef";
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24 
rtems_isr bsp_stub_handler(
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   rtems_vector_number trap
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)
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{
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}
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/*
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 *  bsp_spurious_handler
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 *
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 *  Print a message on the debug console and then die
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 */
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rtems_isr bsp_spurious_handler(
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   rtems_vector_number trap
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)
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{
39 
 
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  switch ( trap ) {
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    case PPC_IRQ_SYSTEM_RESET:
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      DEBUG_puts( "\nTrap: System reset" );
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      break;
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    case PPC_IRQ_MCHECK:
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      DEBUG_puts( "\nTrap: Machine check" );
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      break;
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    case PPC_IRQ_PROTECT:
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      DEBUG_puts( "\nTrap: DSI" );
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      break;
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    case PPC_IRQ_ISI:
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      DEBUG_puts( "ISI" );
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      break;
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    case PPC_IRQ_EXTERNAL:
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      DEBUG_puts( "\nTrap: External interupt" );
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      break;
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    case PPC_IRQ_ALIGNMENT:
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      DEBUG_puts( "\nTrap: Alignment Exception" );
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      break;
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    case PPC_IRQ_PROGRAM:
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      DEBUG_puts( "\nTrap: Program" );
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      break;
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    case PPC_IRQ_NOFP:
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      DEBUG_puts( "\nTrap: Floating point unavailable" );
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      break;
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    case PPC_IRQ_DECREMENTER:
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      DEBUG_puts( "\nTrap: Decrementer" );
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      break;
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    case PPC_IRQ_RESERVED_A:
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      DEBUG_puts( "\nTrap: Reserved 0x00a00" );
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      break;
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    case PPC_IRQ_RESERVED_B:
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      DEBUG_puts( "\nTrap: Reserved 0x00b00" );
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      break;
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    case PPC_IRQ_SCALL:
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      DEBUG_puts( "\nTrap: System call" );
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      break;
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    case PPC_IRQ_TRACE:
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      DEBUG_puts( "\nTrap: Trace" );
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      break;
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    case PPC_IRQ_FP_ASST:
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      DEBUG_puts( "\nTrap: Floating point Assist" );
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      break;
83 
 
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#if defined(ppc403)
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#error "Please fill in names. "
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    case PPC_IRQ_CRIT :
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      DEBUG_puts( "\nTrap: Critical Error ");
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      break;
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    case PPC_IRQ_PIT:
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      DEBUG_puts( "\nTrap: 0x01000" );
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      break;
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    case PPC_IRQ_FIT:
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      DEBUG_puts( "\nTrap: 0x01010" );
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      break;
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    case PPC_IRQ_WATCHDOG :
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      DEBUG_puts( "\nTrap: 0x01020" );
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      break;
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    case PPC_IRQ_DEBUG   :
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      DEBUG_puts( "\nTrap: 0x02000" );
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      break;
101 
 
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#elif defined(ppc601)
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#error "Please fill in names. "
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    case PPC_IRQ_TRACE    :
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      DEBUG_puts( "\nTrap: 0x02000" );
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      break;
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#elif defined(ppc603)
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#error "Please fill in names. "
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    case PPC_IRQ_TRANS_MISS :
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      DEBUG_puts( "\nTrap: 0x1000" );
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      break;
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    case PPC_IRQ_DATA_LOAD:
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      DEBUG_puts( "\nTrap: 0x1100" );
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      break;
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    case PPC_IRQ_DATA_STORE:
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      DEBUG_puts( "\nTrap: 0x1200" );
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      break;
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    case PPC_IRQ_ADDR_BRK:
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      DEBUG_puts( "\nTrap: 0x1300" );
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      break;
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    case PPC_IRQ_SYS_MGT:
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      DEBUG_puts( "\nTrap: 0x1400" );
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      break;
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#elif defined(ppc603e)
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    case PPC_TLB_INST_MISS:
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      DEBUG_puts( "\nTrap: Instruction Translation Miss" );
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      break;
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    case PPC_TLB_LOAD_MISS:
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      DEBUG_puts( "\nTrap: Data Load Translation Miss" );
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      break;
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    case PPC_TLB_STORE_MISS :
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      DEBUG_puts( "\nTrap: Data store Translation Miss");
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      break;
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    case PPC_IRQ_ADDRBRK:
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      DEBUG_puts( "\nTrap: Instruction address break point" );
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      break;
139 
    case PPC_IRQ_SYS_MGT:
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      DEBUG_puts( "\nTrap: System management interrupt" );
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      break;
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143 
#elif defined(ppc604)
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#error "Please fill in names. "
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    case PPC_IRQ_ADDR_BRK:
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      DEBUG_puts( "0x1300" );
147 
      break;
148 
    case PPC_IRQ_SYS_MGT:
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      DEBUG_puts( "0x1400" );
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      break;
151 
#endif
152 
 
153 
  default:
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     DEBUG_puts( "\nTrap: Undefined exception " );
155 
     break;
156 
  }
157 
 
158 
  /*
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   *  What else can we do but stop ...
160 
   */
161 
  /*
162 
   asm volatile( "" );
163 
   */
164 
   while (1);
165 
}
166 
 
167 
/*
168 
 *  bsp_spurious_initialize
169 
 *
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 *  Install the spurious handler for most traps.
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 */
172 
 
173 
void bsp_spurious_initialize()
174 
{
175 
  rtems_unsigned32 trap;
176 
 
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  for ( trap=0 ; trap < PPC_IRQ_LAST ; trap++ ) {
178 
    if (trap == PPC_IRQ_DECREMENTER)
179 
      ;
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      /* set_vector( bsp_stub_handler, trap, 1 ); */
181 
    else
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      set_vector( bsp_spurious_handler, trap,  1 );
183 
  }
184 
}
185 
 
186 
void bsp_set_trap_vectors( void )
187 
{
188 
  volatile rtems_unsigned32 *ptr;
189 
 
190 
  /* reset_vector  */
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  ptr = (rtems_unsigned32 *)0x00100  ;
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  *ptr = 0x48000000;
193 
 
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  /* org    mach_vector  */
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  ptr = (rtems_unsigned32 *)0x00200;
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  *ptr = 0x48000000;
197 
 
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  /* org    prot_vector  */
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  ptr = (rtems_unsigned32 *)0x00300;
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  *ptr = 0x48000000;
201 
 
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  /* org    isi_vector  */
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  ptr = (rtems_unsigned32 *)0x00400;
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  *ptr = 0x48000000;
205 
 
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  /* org    ext_vector  */
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  ptr = (rtems_unsigned32 *)0x0500  ;
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  *ptr = 0x48000000;
209 
 
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  /* org    align_vector  */
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  ptr = (rtems_unsigned32 *)0x00600  ;
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  *ptr = 0x48000000;
213 
 
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  /* org    prog_vector  */
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  ptr = (rtems_unsigned32 *)0x00700  ;
216 
  *ptr = 0x48000000;
217 
 
218 
  /* org    float_vector  */
219 
  ptr = (rtems_unsigned32 *)0x00800;
220 
  *ptr = 0x48000000;
221 
 
222 
  /* org    dec_vector  - rfi */
223 
  ptr = (rtems_unsigned32 *)0x900;
224 
  *ptr = 0x4c000064;
225 
 
226 
  /* org    sys_vector  */
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  ptr = (rtems_unsigned32 *)0x0c00  ;
228 
  *ptr = 0x48000000;
229 
 
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  /* org    trace_vector  */
231 
  ptr = (rtems_unsigned32 *)0x0d00  ;
232 
  *ptr = 0x48000000;
233 
 
234 
  /* org    itm_vector  */
235 
  ptr = (rtems_unsigned32 *)0x01000  ;
236 
  *ptr = 0x48000000;
237 
 
238 
  /* org    dltm_vector  */
239 
  ptr = (rtems_unsigned32 *)0x01100  ;
240 
  *ptr = 0x48000000;
241 
 
242 
  /* org    dstm_vector  */
243 
  ptr = (rtems_unsigned32 *)0x1200  ;
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  *ptr = 0x48000000;
245 
 
246 
  /* org    addr_vector  */
247 
  ptr = (rtems_unsigned32 *)0x1300  ;
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  *ptr = 0x48000000;
249 
 
250 
  /* org    sysmgmt_vector  */
251 
  ptr = (rtems_unsigned32 *)0x1400  ;
252 
  *ptr = 0x48000000;
253 
 
254 
}
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