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[/] [openrisc/] [trunk/] [rtos/] [rtems/] [c/] [src/] [lib/] [libbsp/] [powerpc/] [ppcn_60x/] [universe/] [universe.c] - Blame information for rev 30

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/*
2
 *  COPYRIGHT (c) 1998 by Radstone Technology
3
 *
4
 *
5
 * THIS FILE IS PROVIDED TO YOU, THE USER, "AS IS", WITHOUT WARRANTY OF ANY
6
 * KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, THE
7
 * IMPLIED WARRANTY OF FITNESS FOR A PARTICULAR PURPOSE. THE ENTIRE RISK
8
 * AS TO THE QUALITY AND PERFORMANCE OF ALL CODE IN THIS FILE IS WITH YOU.
9
 *
10
 * You are hereby granted permission to use, copy, modify, and distribute
11
 * this file, provided that this notice, plus the above copyright notice
12
 * and disclaimer, appears in all copies. Radstone Technology will provide
13
 * no support for this code.
14
 *
15
 *  COPYRIGHT (c) 1989, 1990, 1991, 1992, 1993, 1994, 1997.
16
 *  On-Line Applications Research Corporation (OAR).
17
 *  All rights assigned to U.S. Government, 1994.
18
 *
19
 *  This material may be reproduced by or for the U.S. Government pursuant
20
 *  to the copyright license under the clause at DFARS 252.227-7013.  This
21
 *  notice must appear in all copies of this file and its derivatives.
22
 *
23
 * $ld:
24
 */
25
 
26
#include <rtems.h>
27
#include <assert.h>
28
#include <stdio.h>
29
 
30
#include <bsp.h>
31
#include <pci.h>
32
 
33
/********************************************************************
34
 ********************************************************************
35
 *********                                                  *********
36
 *********                  Prototypes                      *********
37
 *********                                                  *********
38
 ********************************************************************
39
 ********************************************************************/
40
 
41
typedef struct {
42
  rtems_unsigned32 PCI_ID;                 /* Offset 0x0000 */
43
  rtems_unsigned32 PCI_CSR;                /* Offset 0x0004 */
44
  rtems_unsigned32 PCI_CLASS;              /* Offset 0x0008 */
45
  rtems_unsigned32 PCI_MISC0;              /* Offset 0x000C */
46
  rtems_unsigned32 PCI_BS;                 /* Offset 0x0010 */
47
  rtems_unsigned32 Buf_Offset_0x0014[ 0x0A ]; /* Offset 0x0014 */
48
  rtems_unsigned32 PCI_MISC1;              /* Offset 0x003C */
49
  rtems_unsigned32 Buf_Offset_0x0040[ 0x30 ]; /* Offset 0x0040 */
50
  rtems_unsigned32 LSI0_CTL;               /* Offset 0x0100 */
51
  rtems_unsigned32 LSI0_BS;                /* Offset 0x0104 */
52
  rtems_unsigned32 LSI0_BD;                /* Offset 0x0108 */
53
  rtems_unsigned32 LSI0_TO;                /* Offset 0x010C */
54
  rtems_unsigned32 Buf_Offset_0x0110;         /* Offset 0x0110 */
55
  rtems_unsigned32 LSI1_CTL;               /* Offset 0x0114 */
56
  rtems_unsigned32 LSI1_BS;                /* Offset 0x0118 */
57
  rtems_unsigned32 LSI1_BD;                /* Offset 0x011C */
58
  rtems_unsigned32 LSI1_TO;                /* Offset 0x0120 */
59
  rtems_unsigned32 Buf_Offset_0x0124;         /* Offset 0x0124 */
60
  rtems_unsigned32 LSI2_CTL;               /* Offset 0x0128 */
61
  rtems_unsigned32 LSI2_BS;                /* Offset 0x012C */
62
  rtems_unsigned32 LSI2_BD;                /* Offset 0x0130 */
63
  rtems_unsigned32 LSI2_TO;                /* Offset 0x0134 */
64
  rtems_unsigned32 Buf_Offset_0x0138;         /* Offset 0x0138 */
65
  rtems_unsigned32 LSI3_CTL;               /* Offset 0x013C */
66
  rtems_unsigned32 LSI3_BS;                /* Offset 0x0140 */
67
  rtems_unsigned32 LSI3_BD;                /* Offset 0x0144 */
68
  rtems_unsigned32 LSI3_TO;                /* Offset 0x0148 */
69
  rtems_unsigned32 Buf_Offset_0x014C[ 0x09 ]; /* Offset 0x014C */
70
  rtems_unsigned32 SCYC_CTL;               /* Offset 0x0170 */
71
  rtems_unsigned32 SCYC_ADDR;              /* Offset 0x0174 */
72
  rtems_unsigned32 SCYC_EN;                /* Offset 0x0178 */
73
  rtems_unsigned32 SCYC_CMP;               /* Offset 0x017C */
74
  rtems_unsigned32 SCYC_SWP;               /* Offset 0x0180 */
75
  rtems_unsigned32 LMISC;                  /* Offset 0x0184 */
76
  rtems_unsigned32 SLSI;                   /* Offset 0x0188 */
77
  rtems_unsigned32 L_CMDERR;               /* Offset 0x018C */
78
  rtems_unsigned32 LAERR;                  /* Offset 0x0190 */
79
  rtems_unsigned32 Buf_Offset_0x0194[ 0x1B ]; /* Offset 0x0194 */
80
  rtems_unsigned32 DCTL;                   /* Offset 0x0200 */
81
  rtems_unsigned32 DTBC;                   /* Offset 0x0204 */
82
  rtems_unsigned32 DLA;                    /* Offset 0x0208 */
83
  rtems_unsigned32 Buf_Offset_0x020C;         /* Offset 0x020C */
84
  rtems_unsigned32 DVA;                    /* Offset 0x0210 */
85
  rtems_unsigned32 Buf_Offset_0x0214;         /* Offset 0x0214 */
86
  rtems_unsigned32 DCPP;                   /* Offset 0x0218 */
87
  rtems_unsigned32 Buf_Offset_0x021C;         /* Offset 0x021C */
88
  rtems_unsigned32 DGCS;                   /* Offset 0x0220 */
89
  rtems_unsigned32 D_LLUE;                 /* Offset 0x0224 */
90
  rtems_unsigned32 Buf_Offset_0x0228[ 0x36 ]; /* Offset 0x0228 */
91
  rtems_unsigned32 LINT_EN;                /* Offset 0x0300 */
92
  rtems_unsigned32 LINT_STAT;              /* Offset 0x0304 */
93
  rtems_unsigned32 LINT_MAP0;              /* Offset 0x0308 */
94
  rtems_unsigned32 LINT_MAP1;              /* Offset 0x030C */
95
  rtems_unsigned32 VINT_EN;                /* Offset 0x0310 */
96
  rtems_unsigned32 VINT_STAT;              /* Offset 0x0314 */
97
  rtems_unsigned32 VINT_MAP0;              /* Offset 0x0318 */
98
  rtems_unsigned32 VINT_MAP1;              /* Offset 0x031C */
99
  rtems_unsigned32 STATID;                 /* Offset 0x0320 */
100
  rtems_unsigned32 V1_STATID;              /* Offset 0x0324 */
101
  rtems_unsigned32 V2_STATID;              /* Offset 0x0328 */
102
  rtems_unsigned32 V3_STATID;              /* Offset 0x032C */
103
  rtems_unsigned32 V4_STATID;              /* Offset 0x0330 */
104
  rtems_unsigned32 V5_STATID;              /* Offset 0x0334 */
105
  rtems_unsigned32 V6_STATID;              /* Offset 0x0338 */
106
  rtems_unsigned32 V7_STATID;              /* Offset 0x033C */
107
  rtems_unsigned32 Buf_Offset_0x0340[ 0x30 ]; /* Offset 0x0340 */
108
  rtems_unsigned32 MAST_CTL;               /* Offset 0x0400 */
109
  rtems_unsigned32 MISC_CTL;               /* Offset 0x0404 */
110
  rtems_unsigned32 MISC_STAT;              /* Offset 0x0408 */
111
  rtems_unsigned32 USER_AM;                /* Offset 0x040C */
112
  rtems_unsigned32 Buf_Offset_0x0410[ 0x2bc ];/* Offset 0x0410 */
113
  rtems_unsigned32 VSI0_CTL;               /* Offset 0x0F00 */
114
  rtems_unsigned32 VSI0_BS;                /* Offset 0x0F04 */
115
  rtems_unsigned32 VSI0_BD;                /* Offset 0x0F08 */
116
  rtems_unsigned32 VSI0_TO;                /* Offset 0x0F0C */
117
  rtems_unsigned32 Buf_Offset_0x0f10;         /* Offset 0x0F10 */
118
  rtems_unsigned32 VSI1_CTL;               /* Offset 0x0F14 */
119
  rtems_unsigned32 VSI1_BS;                /* Offset 0x0F18 */
120
  rtems_unsigned32 VSI1_BD;                /* Offset 0x0F1C */
121
  rtems_unsigned32 VSI1_TO;                /* Offset 0x0F20 */
122
  rtems_unsigned32 Buf_Offset_0x0F24;         /* Offset 0x0F24 */
123
  rtems_unsigned32 VSI2_CTL;               /* Offset 0x0F28 */
124
  rtems_unsigned32 VSI2_BS;                /* Offset 0x0F2C */
125
  rtems_unsigned32 VSI2_BD;                /* Offset 0x0F30 */
126
  rtems_unsigned32 VSI2_TO;                /* Offset 0x0F34 */
127
  rtems_unsigned32 Buf_Offset_0x0F38;         /* Offset 0x0F38 */
128
  rtems_unsigned32 VSI3_CTL;               /* Offset 0x0F3C */
129
  rtems_unsigned32 VSI3_BS;                /* Offset 0x0F40 */
130
  rtems_unsigned32 VSI3_BD;                /* Offset 0x0F44 */
131
  rtems_unsigned32 VSI3_TO;                /* Offset 0x0F48 */
132
  rtems_unsigned32 Buf_Offset_0x0F4C[ 0x9 ];  /* Offset 0x0F4C */
133
  rtems_unsigned32 VRAI_CTL;               /* Offset 0x0F70 */
134
  rtems_unsigned32 VRAI_BS;                /* Offset 0x0F74 */
135
  rtems_unsigned32 Buf_Offset_0x0F78[ 0x2 ];  /* Offset 0x0F78 */
136
  rtems_unsigned32 VCSR_CTL;               /* Offset 0x0F80 */
137
  rtems_unsigned32 VCSR_TO;                /* Offset 0x0F84 */
138
  rtems_unsigned32 V_AMERR;                /* Offset 0x0F88 */
139
  rtems_unsigned32 VAERR;                  /* Offset 0x0F8C */
140
  rtems_unsigned32 Buf_Offset_0x0F90[ 0x19 ]; /* Offset 0x0F90 */
141
  rtems_unsigned32 VCSR_CLR;               /* Offset 0x0FF4 */
142
  rtems_unsigned32 VCSR_SET;               /* Offset 0x0FF8 */
143
  rtems_unsigned32 VCSR_BS;                /* Offset 0x0FFC */
144
} Universe_Memory;
145
 
146
volatile Universe_Memory *UNIVERSE;
147
 
148
/*
149
 * PCI_bus_write
150
 */
151
void PCI_bus_write(
152
  volatile rtems_unsigned32 * _addr,                  /* IN */
153
  rtems_unsigned32 _data                              /* IN */
154
)
155
{
156
  outport_32(_addr, _data);
157
}
158
 
159
rtems_unsigned32 PCI_bus_read(
160
  volatile rtems_unsigned32 *  _addr                  /* IN */
161
)
162
{
163
  rtems_unsigned32 data;
164
 
165
  inport_32(_addr, data);
166
  return data;
167
}
168
 
169
/********************************************************************
170
 ********************************************************************
171
 *********                                                  *********
172
 *********                                                  *********
173
 *********                                                  *********
174
 ********************************************************************
175
 ********************************************************************/
176
 
177
/*
178
 * Initializes the UNIVERSE chip.  This routine is called automatically
179
 * by the boot code.  This routine should be called by user code only if
180
 * a complete PPCn_60x VME initialization is required.
181
 */
182
 
183
void InitializeUniverse()
184
{
185
  rtems_unsigned32 pci_id;
186
  rtems_unsigned32 universe_temp_value;
187
 
188
  /*
189
   * Verify the UNIVERSE CHIP ID
190
   */
191
   (void)PCIConfigRead32(0,4,0,PCI_CONFIG_VENDOR_LOW, &pci_id);
192
 
193
   /*
194
    * compare to known ID
195
    */
196
   if (pci_id != 0x000010e3 ){
197
     DEBUG_puts ("Invalid PPCN_60X_UNIVERSE_CHIP_ID: ");
198
     rtems_fatal_error_occurred( 0x603e0bad );
199
   }
200
 
201
   (void)PCIConfigRead32(0,4,0,PCI_CONFIG_BAR_0, &universe_temp_value);
202
   UNIVERSE = (Universe_Memory *)(universe_temp_value & ~PCI_ADDRESS_IO_SPACE);
203
 
204
   /*
205
    * Set the UNIVERSE PCI Configuration Space Control and Status Register to
206
    * medium speed device, Target Back to Back Capable, Master Enable, Target
207
    * Memory Enable and Target IO Enable
208
    */
209
   PCIConfigWrite32(0,4,0,PCI_CONFIG_COMMAND, PCI_ENABLE_IO_SPACE |
210
                                              PCI_ENABLE_MEMORY_SPACE |
211
                                              PCI_ENABLE_BUS_MASTER);
212
 
213
   /*
214
    * Turn off the sysfail by setting SYSFAIL bit to 1 on the VCSR_CLR register
215
    */
216
   PCI_bus_write( &UNIVERSE->VCSR_CLR, 0x40000000 );
217
 
218
#if 0
219
   /*
220
    * Set VMEbus Slave Image 0 Base Address to 0x04000000 on VSI0_BS register.
221
    */
222
   PCI_bus_write( &UNIVERSE->VSI0_BS, 0x04000000 );
223
 
224
   /*
225
    * Set VMEbus Slave Image 0 Bound Address to 0x05000000 on VSI0_BD register.
226
    */
227
   PCI_bus_write( &UNIVERSE->VSI0_BD, 0x05000000 );
228
 
229
   /*
230
    * VMEbus Slave Image 0 Translation Offset to 0x7C000000 on VSI0_TO
231
    * register. Map the VME base address 0x4000000 to local memory address 0x0
232
    */
233
   PCI_bus_write( &UNIVERSE->VSI0_TO, 0x7C000000 );
234
 
235
   /*
236
    * Set the VMEbus Slave Image 0 Control register with write posted,
237
    * read prefetch and AM code set for program, data, supervisor and user mode
238
    */
239
   PCI_bus_write( &UNIVERSE->VSI0_CTL, 0xE0F20000 );
240
#endif
241
 
242
   /*
243
    * Set the VMEbus Master Control register with retry forever, 256 bytes
244
    * posted write transfer count, VMEbus request level 3, RWD, PCI 32 bytes
245
    * aligned burst size and PCI bus number to be zero
246
    */
247
   PCI_bus_write( &UNIVERSE->MAST_CTL, 0x01C00000 );
248
 
249
   /*
250
    * VMEbus DMA Transfer Control register with 32 bit VMEbus Maximum Data
251
    * width, A32 VMEbus Address Space, AM code to be data, none-privilleged,
252
    * single and BLT cycles on VME bus and 64-bit PCI Bus Transactions enable
253
    PCI_bus_write( &UNIVERSE->DCTL, 0x00820180 );
254
    */
255
 
256
   PCI_bus_write( &UNIVERSE->LSI0_CTL, 0x80700040 );
257
   PCI_bus_write( &UNIVERSE->LSI0_BS,  0x04000000 );
258
   PCI_bus_write( &UNIVERSE->LSI0_BD,  0x05000000 );
259
   PCI_bus_write( &UNIVERSE->LSI0_TO,  0x7C000000 );
260
 
261
 
262
#if 0
263
   /*
264
    * Set the PCI Slave Image 0 Control register with posted write enable,
265
    * 32 bit data width, A32 VMEbus address base, AM code to be data,
266
    * none-privilleged, single and BLT cycles on VME bus with PCI
267
    * bus memory space.
268
   PCI_bus_write( &UNIVERSE->LSI0_CTL, 0xC0820100 );
269
    */
270
   PCI_bus_write( &UNIVERSE->LSI0_CTL, 0x80700040 );
271
 
272
   /*
273
    * Set the PCI Slave Image 0 Base Address to be
274
    * 0x0 on LSI0_BS register.
275
    */
276
   PCI_bus_write( &UNIVERSE->LSI0_BS, 0x00FF0000 );
277
 
278
   /*
279
    * Set the PCI Slave Image 0 Bound Address to be
280
    * 0xFFFFF000 on VSI0_BD register.
281
    */
282
   PCI_bus_write( &UNIVERSE->LSI0_BD, 0x00FFF000 );
283
 
284
   /*
285
    * Set the PCI Slave Image 0 Translation Offset to be
286
    * 0x0 on VSI0_TO register.
287
    * Note: If the actual VME address is bigger than 0x40000000, we need
288
    *   to set the PCI Slave Image 0 Translation Offset = 0x40000000
289
    *   register.
290
    *   i.e. if actual VME ADRR = 0x50000000, then we
291
    *     need to subtract it by 0x40000000 and set
292
    *      the LSI0_T0 register to be 0x40000000 and then
293
    *     perform a PCI data access by adding 0xC0000000 to
294
    *     0x10000000 -- which is came form the result of
295
    *     (0x50000000 - 0x40000000).
296
    */
297
   PCI_bus_write( &UNIVERSE->LSI0_TO, 0x0 );
298
#endif
299
 
300
   /*
301
    * Remove the Universe from VMEbus BI-Mode (bus-isolation).  Once out of
302
    * BI-Mode VMEbus accesses can be made.
303
    */
304
 
305
   universe_temp_value = PCI_bus_read( &UNIVERSE->MISC_CTL );
306
 
307
   if (universe_temp_value & 0x100000)
308
     PCI_bus_write( &UNIVERSE->MISC_CTL,(universe_temp_value | ~0xFF0FFFFF));
309
}
310
 
311
/*
312
 * Set the slave VME base address to the specified base address.
313
 * Note: Lower 12 bits[11:0] will be masked out prior to setting the VMEbus
314
 *       Slave Image 0 registers.
315
 */
316
void set_vme_base_address (
317
  rtems_unsigned32 base_address
318
)
319
{
320
  volatile rtems_unsigned32 temp;
321
 
322
  /*
323
   * Calculate the current size of the Slave VME image 0
324
   */
325
  temp = ( PCI_bus_read( &UNIVERSE->VSI0_BD) & 0xFFFFF000) -
326
          ( PCI_bus_read( &UNIVERSE->VSI0_BS) & 0xFFFFF000);
327
 
328
  /*
329
   * Set the VMEbus Slave Image 0 Base Address to be
330
   * the specifed base address on VSI0_BS register.
331
   */
332
   PCI_bus_write( &UNIVERSE->VSI0_BS, (base_address & 0xFFFFF000) );
333
 
334
  /*
335
   * Update the VMEbus Slave Image 0 Bound Address.
336
   */
337
  PCI_bus_write( &UNIVERSE->VSI0_BD, temp );
338
 
339
  /*
340
   * Update the VMEbus Slave Image 0 Translation Offset
341
   */
342
  temp = 0xFFFFFFFF - (base_address & 0xFFFFF000) + 1 + 0x80000000;
343
  PCI_bus_write( &UNIVERSE->VSI0_TO, temp );
344
}
345
 
346
/*
347
 * Gets the VME base address
348
 */
349
rtems_unsigned32 get_vme_base_address ()
350
{
351
  volatile rtems_unsigned32 temp;
352
 
353
  temp = PCI_bus_read( &UNIVERSE->VSI0_BS );
354
  temp &= 0xFFFFF000;
355
  return (temp);
356
}
357
 
358
rtems_unsigned32 get_vme_slave_size()
359
{
360
  volatile rtems_unsigned32 temp;
361
  temp  =  PCI_bus_read( &UNIVERSE->VSI0_BD);
362
  temp &= 0xFFFFF000;
363
  temp  = temp - get_vme_base_address ();
364
  return temp;
365
}
366
 
367
/*
368
 * Set the size of the VME slave image
369
 * Note: The maximum size is up to 24 M bytes. (00000000 - 017FFFFF)
370
 */
371
void set_vme_slave_size (rtems_unsigned32 size)
372
{
373
  volatile rtems_unsigned32 temp;
374
 
375
  if (size<0)
376
    size = 0;
377
 
378
  if (size > 0x17FFFFF)
379
    size = 0x17FFFFF;
380
 
381
  /*
382
   * Read the VME slave image base address
383
   */
384
  temp = get_vme_base_address ();
385
 
386
  /*
387
   * Update the VMEbus Slave Image 0 Bound Address.
388
   */
389
  temp = temp + (size & 0xFFFFF000);
390
  PCI_bus_write( &UNIVERSE->VSI0_BD, temp );
391
}
392
 
393
#if 0
394
/* XXXXX */
395
/*
396
 * Returns the 16 bit location specified by vme_ptr, which must be a
397
 * pointer to VME D16 space
398
 */
399
rtems_unsigned16 get_vme(
400
  rtems_unsigned16 *vme_ptr
401
)
402
{
403
  rtems_unsigned16 result;
404
 
405
  if (vme_ptr > (rtems_unsigned16 *)0x3EFFFFFF)
406
  {
407
    /*
408
     * LSI0_TO register to 0x3EFFF000 if it had not been updated already
409
     */
410
    if (( PCI_bus_read( &UNIVERSE->LSI0_TO ) & 0xFFFFF000) != 0x3EFFF000)
411
         PCI_bus_write( &UNIVERSE->LSI0_TO, 0x3EFFF000 );
412
 
413
    result = (*(rtems_unsigned16 *)(
414
               ((rtems_unsigned32)vme_ptr - 0x3EFFF000)+
415
                PPCN_60X_PCI_MEM_BASE) );
416
   }
417
   else
418
     result = (*(rtems_unsigned16 *)
419
                ((rtems_unsigned32)vme_ptr+PPCN_60X_PCI_MEM_BASE));
420
 
421
   return result;
422
}
423
 
424
/*
425
 * Stores the 16 bit word at the location specified by vme_ptr, which must
426
 * be a pointer to VME D16 space
427
 */
428
void put_vme(
429
  rtems_unsigned16 *vme_ptr,
430
  rtems_unsigned16 value
431
)
432
{
433
 
434
  if (vme_ptr > (rtems_unsigned16 *)0x3EFFFFFF) {
435
    /*
436
     * LSI0_TO register to 0x3EFFF000 if it had not been updated already
437
     */
438
     if (( PCI_bus_read( &UNIVERSE->LSI0_TO) & 0xFFFFF000) != 0x3EFFF000)
439
       PCI_bus_write( &UNIVERSE->LSI0_TO, 0x3EFFF000 );
440
 
441
    *(rtems_unsigned16 *) (((rtems_unsigned32)vme_ptr - 0x3EFFF000) +
442
                            PPCN_60X_PCI_MEM_BASE) = value;
443
   }
444
   else
445
      *(rtems_unsigned16 *)((rtems_unsigned32)vme_ptr +
446
                             PPCN_60X_PCI_MEM_BASE) = value;
447
}
448
#endif
449
 

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