OpenCores
URL https://opencores.org/ocsvn/openrisc/openrisc/trunk

Subversion Repositories openrisc

[/] [openrisc/] [trunk/] [rtos/] [rtems/] [c/] [src/] [lib/] [libbsp/] [powerpc/] [score603e/] [startup/] [spurious.c] - Blame information for rev 30

Go to most recent revision | Details | Compare with Previous | View Log

Line No. Rev Author Line
1 30 unneback 
/*
2 
 *  Score603e Spurious Trap Handler
3 
 *
4 
 *  This is just enough of a trap handler to let us know what
5 
 *  the likely source of the trap was.
6 
 *
7 
 *  Developed as part of the port of RTEMS to the ERC32 implementation
8 
 *  of the SPARC by On-Line Applications Research Corporation (OAR)
9 
 *  under contract to the European Space Agency (ESA).
10 
 *
11 
 *  COPYRIGHT (c) 1995. European Space Agency.
12 
 *
13 
 *  This terms of the RTEMS license apply to this file.
14 
 *
15 
 *  $Id: spurious.c,v 1.2 2001-09-27 12:01:04 chris Exp $
16 
 */
17 
 
18 
#include <bsp.h>
19 
 
20 
#include <string.h>
21 
 
22 
static const char digits[16] = "0123456789abcdef";
23 
 
24 
rtems_isr bsp_stub_handler(
25 
   rtems_vector_number trap
26 
)
27 
{
28 
}
29 
 
30 
/*
31 
 *  bsp_spurious_handler
32 
 *
33 
 *  Print a message on the debug console and then die
34 
 */
35 
rtems_isr bsp_spurious_handler(
36 
   rtems_vector_number trap
37 
)
38 
{
39 
 
40 
  switch ( trap ) {
41 
    case PPC_IRQ_SYSTEM_RESET:
42 
      DEBUG_puts( "\nTrap: System reset" );
43 
      break;
44 
    case PPC_IRQ_MCHECK:
45 
      DEBUG_puts( "\nTrap: Machine check" );
46 
      break;
47 
    case PPC_IRQ_PROTECT:
48 
      DEBUG_puts( "\nTrap: DSI" );
49 
      break;
50 
    case PPC_IRQ_ISI:
51 
      DEBUG_puts( "ISI" );
52 
      break;
53 
    case PPC_IRQ_EXTERNAL:
54 
      DEBUG_puts( "\nTrap: External interupt" );
55 
      break;
56 
    case PPC_IRQ_ALIGNMENT:
57 
      DEBUG_puts( "\nTrap: Alignment Exception" );
58 
      break;
59 
    case PPC_IRQ_PROGRAM:
60 
      DEBUG_puts( "\nTrap: Program" );
61 
      break;
62 
    case PPC_IRQ_NOFP:
63 
      DEBUG_puts( "\nTrap: Floating point unavailable" );
64 
      break;
65 
    case PPC_IRQ_DECREMENTER:
66 
      DEBUG_puts( "\nTrap: Decrementer" );
67 
      break;
68 
    case PPC_IRQ_RESERVED_A:
69 
      DEBUG_puts( "\nTrap: Reserved 0x00a00" );
70 
      break;
71 
    case PPC_IRQ_RESERVED_B:
72 
      DEBUG_puts( "\nTrap: Reserved 0x00b00" );
73 
      break;
74 
    case PPC_IRQ_SCALL:
75 
      DEBUG_puts( "\nTrap: System call" );
76 
      break;
77 
    case PPC_IRQ_TRACE:
78 
      DEBUG_puts( "\nTrap: Trace" );
79 
      break;
80 
    case PPC_IRQ_FP_ASST:
81 
      DEBUG_puts( "\nTrap: Floating point Assist" );
82 
      break;
83 
 
84 
#if defined(ppc403)
85 
#error "Please fill in names. "
86 
    case PPC_IRQ_CRIT :
87 
      DEBUG_puts( "\nTrap: Critical Error ");
88 
      break;
89 
    case PPC_IRQ_PIT:
90 
      DEBUG_puts( "\nTrap: 0x01000" );
91 
      break;
92 
    case PPC_IRQ_FIT:
93 
      DEBUG_puts( "\nTrap: 0x01010" );
94 
      break;
95 
    case PPC_IRQ_WATCHDOG :
96 
      DEBUG_puts( "\nTrap: 0x01020" );
97 
      break;
98 
    case PPC_IRQ_DEBUG   :
99 
      DEBUG_puts( "\nTrap: 0x02000" );
100 
      break;
101 
 
102 
#elif defined(ppc601)
103 
#error "Please fill in names. "
104 
    case PPC_IRQ_TRACE    :
105 
      DEBUG_puts( "\nTrap: 0x02000" );
106 
      break;
107 
 
108 
#elif defined(ppc603)
109 
#error "Please fill in names. "
110 
    case PPC_IRQ_TRANS_MISS :
111 
      DEBUG_puts( "\nTrap: 0x1000" );
112 
      break;
113 
    case PPC_IRQ_DATA_LOAD:
114 
      DEBUG_puts( "\nTrap: 0x1100" );
115 
      break;
116 
    case PPC_IRQ_DATA_STORE:
117 
      DEBUG_puts( "\nTrap: 0x1200" );
118 
      break;
119 
    case PPC_IRQ_ADDR_BRK:
120 
      DEBUG_puts( "\nTrap: 0x1300" );
121 
      break;
122 
    case PPC_IRQ_SYS_MGT:
123 
      DEBUG_puts( "\nTrap: 0x1400" );
124 
      break;
125 
 
126 
#elif defined(ppc603e)
127 
    case PPC_TLB_INST_MISS:
128 
      DEBUG_puts( "\nTrap: Instruction Translation Miss" );
129 
      break;
130 
    case PPC_TLB_LOAD_MISS:
131 
      DEBUG_puts( "\nTrap: Data Load Translation Miss" );
132 
      break;
133 
    case PPC_TLB_STORE_MISS :
134 
      DEBUG_puts( "\nTrap: Data store Translation Miss");
135 
      break;
136 
    case PPC_IRQ_ADDRBRK:
137 
      DEBUG_puts( "\nTrap: Instruction address break point" );
138 
      break;
139 
    case PPC_IRQ_SYS_MGT:
140 
      DEBUG_puts( "\nTrap: System management interrupt" );
141 
      break;
142 
 
143 
#elif defined(ppc604)
144 
#error "Please fill in names. "
145 
    case PPC_IRQ_ADDR_BRK:
146 
      DEBUG_puts( "0x1300" );
147 
      break;
148 
    case PPC_IRQ_SYS_MGT:
149 
      DEBUG_puts( "0x1400" );
150 
      break;
151 
#endif
152 
 
153 
  default:
154 
     DEBUG_puts( "\nTrap: Undefined exception " );
155 
     break;
156 
  }
157 
 
158 
  /*
159 
   *  What else can we do but stop ...
160 
   */
161 
  /*
162 
   asm volatile( "" );
163 
   */
164 
   while (1);
165 
}
166 
 
167 
/*
168 
 *  bsp_spurious_initialize
169 
 *
170 
 *  Install the spurious handler for most traps.
171 
 */
172 
 
173 
void bsp_spurious_initialize()
174 
{
175 
  rtems_unsigned32 trap;
176 
 
177 
  for ( trap=0 ; trap < PPC_IRQ_LAST ; trap++ ) {
178 
    if (trap == PPC_IRQ_DECREMENTER)
179 
      ;
180 
      /* set_vector( bsp_stub_handler, trap, 1 ); */
181 
    else
182 
      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  */
191 
  ptr = (rtems_unsigned32 *)0x00100  ;
192 
  *ptr = 0x48000000;
193 
 
194 
  /* org    mach_vector  */
195 
  ptr = (rtems_unsigned32 *)0x00200;
196 
  *ptr = 0x48000000;
197 
 
198 
  /* org    prot_vector  */
199 
  ptr = (rtems_unsigned32 *)0x00300;
200 
  *ptr = 0x48000000;
201 
 
202 
  /* org    isi_vector  */
203 
  ptr = (rtems_unsigned32 *)0x00400;
204 
  *ptr = 0x48000000;
205 
 
206 
  /* org    ext_vector  */
207 
  ptr = (rtems_unsigned32 *)0x0500  ;
208 
  *ptr = 0x48000000;
209 
 
210 
  /* org    align_vector  */
211 
  ptr = (rtems_unsigned32 *)0x00600  ;
212 
  *ptr = 0x48000000;
213 
 
214 
  /* org    prog_vector  */
215 
  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  */
227 
  ptr = (rtems_unsigned32 *)0x0c00  ;
228 
  *ptr = 0x48000000;
229 
 
230 
  /* 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  ;
244 
  *ptr = 0x48000000;
245 
 
246 
  /* org    addr_vector  */
247 
  ptr = (rtems_unsigned32 *)0x1300  ;
248 
  *ptr = 0x48000000;
249 
 
250 
  /* org    sysmgmt_vector  */
251 
  ptr = (rtems_unsigned32 *)0x1400  ;
252 
  *ptr = 0x48000000;
253 
 
254 
}
255 
 
256 
 
257 
 
258 
 
259 
 

powered by: WebSVN 2.1.0

© copyright 1999-2024 OpenCores.org, equivalent to Oliscience, all rights reserved. OpenCores®, registered trademark.