source: rtems/bsps/powerpc/motorola_powerpc/start/motorola.c @ 762fa62

5
Last change on this file since 762fa62 was 499385e, checked in by Sebastian Huber <sebastian.huber@…>, on 04/24/18 at 05:24:31

bsps: Move motorola.c to bsps

This patch is a part of the BSP source reorganization.

Update #3285.
  • Property mode set to 100644
File size: 14.2 KB
Line 
1/* motorola.h
2 *
3 *  This include file describe the data structure and the functions implemented
4 *  by rtems to identify motorola boards.
5 *
6 *  Copyright (C) 1999 valette@crf.canon.fr
7 *
8 *  The license and distribution terms for this file may be
9 *  found in the file LICENSE in this distribution or at
10 *  http://www.rtems.org/license/LICENSE.
11 */
12
13#include <bsp.h>
14#include <bsp/motorola.h>
15#include <rtems/bspIo.h>
16#include <libcpu/io.h>
17#include <string.h>
18#include <libcpu/cpuIdent.h>
19
20/*
21** Board-specific table that maps interrupt names to onboard PCI
22** peripherals as well as local PCI busses.  This table is used at
23** bspstart() to configure the interrupt name & pin for all devices that
24** do not have it already specified.  If the device is already
25** configured, we leave it alone but sanity check & print a warning if
26** we don't know about the pin/line the card gives us.
27**
28** bus = the bus number of the slot/device in question
29**
30** slot :
31**
32**   If slot != -1, it indicates a device on the given bus in that slot
33**   is to use one of the listed interrupt names given an interrupt pin.
34**
35**   If slot == -1, it means devices on this bus can occupy any slot-
36**   and for pci, this means the particular interrupt pin that the
37**   device signals is therefore dependent on the particular slot.  To
38**   work from the slot to the interrupt pin, the swizzle table is used.
39**   Once the bus and interrupt pin is known, the correct interrupt name
40**   can be pulled from the table.  The swizzle table relates the
41**   interrupt pin from the device to the particular interrupt
42**   controller interrupt pin- so it is quite reasonable for a device on
43**   bus 1 signalling interrupt pin 1 to show up at the interrupt
44**   controller as pin 4- this is why the int pin field varies for
45**   bridged pci busses.
46**
47**
48** opts = bitmap of options that control the configuration of this
49** slot/bus.
50**
51** pin_routes[] = array of pin & vectors that may serve this slot;
52**
53**      pin = the pin # which delivers an interrupt on this route, A=1,
54**      B=2, C=3, D=4
55**
56**      int_name[4] = an array of up to 4 bsp-specific interrupt name
57**      that can be used by this route.  Unused entries should be -1.
58**      The array is of primary use for slots that can be vectored thru
59**      multiple interrupt lines over the interrupt pin supplied by the
60**      record.  If more than one entry is present, the most preferable
61**      should supplied first.
62**
63*/
64
65#define NULL_PINMAP     {-1,{-1,-1,-1,-1}}
66#define NULL_INTMAP     {-1,-1,-1,{}}
67
68#ifdef qemu
69static struct _int_map qemu_prep_intmap[] = {
70    { 0, -1, 0, { { 1, { 9, -1, -1, -1}},
71                  { 2, {11, -1  -1, -1}},
72                  NULL_PINMAP }},
73        NULL_INTMAP
74};
75#endif
76
77static struct _int_map mcp750_intmap[] = {
78
79   { 0, 16, 0, {{1,  {5, 19,-1,-1}}, /* pmc slot */
80                NULL_PINMAP}},
81
82   { 0, 14, 0, {{1,  {10,18,-1,-1}}, /* onboard ethernet */
83                NULL_PINMAP}},
84
85   { 1, -1, 0, {{1,  {24,-1,-1,-1}},
86                {2,  {25,-1,-1,-1}},
87                {3,  {26,-1,-1,-1}},
88                {4,  {27,-1,-1,-1}},
89                NULL_PINMAP}},
90
91   NULL_INTMAP };
92
93static struct _int_map mtx603_intmap[] = {
94
95   {0, 14, 0, {{1, {10,16,-1,-1}},  /* onboard ethernet */
96               NULL_PINMAP}},
97
98   {0, 12, 0, {{1, {14,18,-1,-1}},  /* onboard scsi */
99               NULL_PINMAP}},
100
101   {0, 16, 0, {{1, {25,-1,-1,-1}},  /* pci/pmc slot 1 */
102               {2, {26,-1,-1,-1}},
103               {3, {27,-1,-1,-1}},
104               {4, {28,-1,-1,-1}},
105               NULL_PINMAP}},
106
107   {0, 17, 0, {{1, {26,-1,-1,-1}},  /* pci/pmc slot 2 */
108               {2, {27,-1,-1,-1}},
109               {3, {28,-1,-1,-1}},
110               {4, {25,-1,-1,-1}},
111               NULL_PINMAP}},
112
113   {0, 18, 0, {{1, {27,-1,-1,-1}},  /* pci slot 3 */
114               {2, {28,-1,-1,-1}},
115               {3, {25,-1,-1,-1}},
116               {4, {26,-1,-1,-1}},
117               NULL_PINMAP}},
118
119   NULL_INTMAP };
120
121static struct _int_map mvme23xx_intmap[] = {
122/* Raven Hostbridge; has int_pin == 0
123   {0,  0, 0, {{0, {-1,-1,-1,-1}},
124               NULL_PINMAP}},
125*/
126
127/* Winbond PCI/ISA 83c553; has int_pin == 0
128   {0, 11, 0, {{0, {-1,-1,-1,-1}},
129               NULL_PINMAP}},
130*/
131
132#if 0 /* Leave as ISA interrupts for now */
133   {0, 13, PCI_FIXUP_OPT_OVERRIDE_NAME,
134                        {{1, {11,21,-1,-1,-1}},  /* Universe  ISA/PCI */
135                        /* strictly speaking, a non-multi function device
136                         * must only use pin A
137                         */
138                         {2, {22,-1,-1,-1,-1}},  /* Universe          */
139                         {3, {23,-1,-1,-1,-1}},  /* Universe          */
140                         {4, {24,-1,-1,-1,-1}},  /* Universe          */
141             NULL_PINMAP}},
142
143   {0, 14, PCI_FIXUP_OPT_OVERRIDE_NAME,
144                        {{1, {10,18,-1,-1}},  /* DEC Tulip enet (ISA/PCI)  */
145             NULL_PINMAP}},
146#endif
147
148   {0, 16, PCI_FIXUP_OPT_OVERRIDE_NAME,
149                        {{1, {25,-1,-1,-1}},  /* pci/pmc slot 1   */
150             {2, {26,-1,-1,-1}},
151             {3, {27,-1,-1,-1}},
152             {4, {28,-1,-1,-1}},
153             NULL_PINMAP}},
154
155   {0, 17, PCI_FIXUP_OPT_OVERRIDE_NAME,
156                        {{1, {28,-1,-1,-1}},  /* pci/pmc slot 2   */ /* orig: 0xf */
157             {2, {25,-1,-1,-1}},
158             {3, {26,-1,-1,-1}},
159             {4, {27,-1,-1,-1}},
160             NULL_PINMAP}},
161
162   NULL_INTMAP };
163
164static struct _int_map mvme24xx_intmap[] = {
165/* Raven Hostbridge; has int_pin == 0
166   {0,  0, 0, {{0, {-1,-1,-1,-1}},
167               NULL_PINMAP}},
168*/
169
170/* Winbond PCI/ISA 83c553; has int_pin == 0
171   {0, 11, 0, {{0, {-1,-1,-1,-1}},
172               NULL_PINMAP}},
173*/
174
175   {0, 13, PCI_FIXUP_OPT_OVERRIDE_NAME,
176                        {{1, {11,21,-1,-1}},  /* Universe  ISA/PCI */
177                        /* strictly speaking, a non-multi function device
178                         * must only use pin A
179                         */
180                         {2, {22,-1,-1,-1}},  /* Universe          */
181                         {3, {23,-1,-1,-1}},  /* Universe          */
182                         {4, {24,-1,-1,-1}},  /* Universe          */
183             NULL_PINMAP}},
184
185   {0, 14, PCI_FIXUP_OPT_OVERRIDE_NAME,
186                        {{1, {10,18,-1,-1}},  /* DEC Tulip enet (ISA/PCI)  */
187             NULL_PINMAP}},
188   {0, 16, PCI_FIXUP_OPT_OVERRIDE_NAME,
189            {{1, {25,-1,-1,-1}},  /* pci/pmc slot 1   */
190             {2, {26,-1,-1,-1}},
191             {3, {27,-1,-1,-1}},
192             {4, {28,-1,-1,-1}},
193             NULL_PINMAP}},
194
195   {0, 17, PCI_FIXUP_OPT_OVERRIDE_NAME,
196            {{1, {28,-1,-1,-1}},  /* pci/pmc slot 2   */ /* orig: 0xf */
197             {2, {25,-1,-1,-1}},
198             {3, {26,-1,-1,-1}},
199             {4, {27,-1,-1,-1}},
200             NULL_PINMAP}},
201   NULL_INTMAP };
202
203static struct _int_map mvme27xx_intmap[] = {
204/* Raven Hostbridge; has int_pin == 0 */
205   {0,  0, 0, {{0, {-1,-1,-1,-1}},
206               NULL_PINMAP}},
207
208
209/* Winbond PCI/ISA 83c553; has int_pin == 0 */
210   {0, 11, 0, {{0, {-1,-1,-1,-1}},
211               NULL_PINMAP}},
212
213   {0, 13, PCI_FIXUP_OPT_OVERRIDE_NAME,
214                        {{1, {11,21,-1,-1}},  /* Universe  ISA/PCI */
215                        /* strictly speaking, a non-multi function device
216                         * must only use pin A
217                         */
218                         {2, {22,-1,-1,-1}},  /* Universe          */
219                         {3, {23,-1,-1,-1}},  /* Universe          */
220                         {4, {24,-1,-1,-1}},  /* Universe          */
221             NULL_PINMAP}},
222
223   {0, 14, PCI_FIXUP_OPT_OVERRIDE_NAME,
224                        {{1, {10,18,-1,-1}},  /* DEC Tulip enet (ISA/PCI)  */
225             NULL_PINMAP}},
226   {0, 16, PCI_FIXUP_OPT_OVERRIDE_NAME,
227            {{1, {25,-1,-1,-1}},  /* pci/pmc slot 1   */
228             {2, {26,-1,-1,-1}},
229             {3, {27,-1,-1,-1}},
230             {4, {28,-1,-1,-1}},
231             NULL_PINMAP}},
232
233   {0, 17, PCI_FIXUP_OPT_OVERRIDE_NAME,
234            {{1, {28,-1,-1,-1}},  /* pci/pmc slot 2   */ /* orig: 0xf */
235             {2, {25,-1,-1,-1}},
236             {3, {26,-1,-1,-1}},
237             {4, {27,-1,-1,-1}},
238             NULL_PINMAP}},
239   NULL_INTMAP };
240
241static struct _int_map mvme2100_intmap[] = {
242   {0, 0, 0, {{1, {16,-1,-1,-1}}, /* something shows up in slot 0 and OpenPIC  */
243                                  /* 0 is unused.  This hushes the init code.  */
244               NULL_PINMAP}},
245
246   {0, 13, 0, {{1, {23,-1,-1,-1}},  /* Universe Lint[0-3]; not quite legal     */
247               {2, {24,-1,-1,-1}},  /* since the universe is a single-function */
248               {3, {25,-1,-1,-1}},  /* device. We leave it for info purposes   */
249               {4, {26,-1,-1,-1}},
250               NULL_PINMAP}},
251
252   {0, 14, 0, {{1, {17,-1,-1,-1}},  /* onboard ethernet */
253               NULL_PINMAP}},
254
255   {0, 16, PCI_FIXUP_OPT_OVERRIDE_NAME,
256              {{1, {18,-1,-1,-1}},  /* PMC slot; all pins are routed to 18     */
257               {2, {18,-1,-1,-1}},  /* I give the OVERRIDE option since I had  */
258               {3, {18,-1,-1,-1}},  /* problems with devices behind a bridge   */
259               {4, {18,-1,-1,-1}},  /* on a PMC card reading irq line 0...     */
260               NULL_PINMAP}},
261
262   /* FIXME: I don't know how MIP works or what it is; these probably won't work */
263
264   {0, -1, PCI_FIXUP_OPT_OVERRIDE_NAME,
265              {{1, {23,-1,-1,-1}},  /* PCI INT[A-D] expansion */
266               {2, {24,-1,-1,-1}},
267               {3, {25,-1,-1,-1}},
268               {4, {26,-1,-1,-1}},
269               NULL_PINMAP}},
270
271   NULL_INTMAP };
272
273/*
274 * This table represents the standard PCI swizzle defined in the
275 * PCI bus specification.  Table taken from Linux 2.4.18, prep_pci.c,
276 * the values in this table are interrupt_pin values (1 based).
277 */
278static unsigned char prep_pci_intpins[4][4] =
279{
280        { 1, 2, 3, 4 },  /* Buses 0, 4, 8, ... */
281        { 2, 3, 4, 1 },  /* Buses 1, 5, 9, ... */
282        { 3, 4, 1, 2 },  /* Buses 2, 6, 10 ... */
283        { 4, 1, 2, 3 },  /* Buses 3, 7, 11 ... */
284};
285
286static int prep_pci_swizzle(int slot, int pin)
287{
288   return prep_pci_intpins[ slot % 4 ][ pin-1 ];
289}
290
291typedef struct {
292  /*
293   * 0x100 mask assumes for Raven and Hawk boards
294   * that the level/edge are set.
295   * 0x200 if this board has a Hawk chip.
296   */
297      int               cpu_type;
298      int               base_type;
299      ppc_cpu_id_t      proc_type;
300      const char        *name;
301
302      struct _int_map   *intmap;
303      int               (*swizzler)(int, int);
304} mot_info_t;
305
306/* NOTE: When adding boards here the 'motorolaBoard' enums MUST be
307 *       updated accordingly!
308 */
309static const mot_info_t mot_boards[] = {
310  {0x0E0, 0xF9, PPC_604,     "MVME 2400", mvme24xx_intmap,prep_pci_swizzle},
311  {0x3E0, 0x00, PPC_750,     "MVME 2400 (PPC 750)", mvme24xx_intmap,prep_pci_swizzle},
312  {0x010, 0x00, PPC_UNKNOWN, "Genesis", NULL, NULL},
313  {0x020, 0x00, PPC_UNKNOWN, "Powerstack (Series E)", NULL, NULL},
314  {0x040, 0x00, PPC_UNKNOWN, "Blackhawk (Powerstack)", NULL, NULL},
315  {0x050, 0x00, PPC_UNKNOWN, "Omaha (PowerStack II Pro3000)", NULL, NULL},
316  {0x060, 0x00, PPC_UNKNOWN, "Utah (Powerstack II Pro4000)", NULL, NULL},
317  {0x0A0, 0x00, PPC_UNKNOWN, "Powerstack (Series EX)", NULL, NULL},
318#ifdef qemu
319  {0x1E0, 0xE0, PPC_UNKNOWN, "QEMU", qemu_prep_intmap, prep_pci_swizzle},
320#else
321  {0x1E0, 0xE0, PPC_UNKNOWN, "Mesquite cPCI (MCP750)", mcp750_intmap, prep_pci_swizzle},
322#endif
323  {0x1E0, 0xE1, PPC_UNKNOWN, "Sitka cPCI (MCPN750)", mcp750_intmap, prep_pci_swizzle},
324  {0x1E0, 0xE2, PPC_UNKNOWN, "Mesquite cPCI (MCP750) w/ HAC", mcp750_intmap, prep_pci_swizzle},
325  {0x1E0, 0xF6, PPC_UNKNOWN, "MTX Plus", NULL, NULL},
326  {0x1E0, 0xF7, PPC_UNKNOWN, "MTX w/o Parallel Port", mtx603_intmap, prep_pci_swizzle},
327  {0x1E0, 0xF8, PPC_UNKNOWN, "MTX w/ Parallel Port", mtx603_intmap, prep_pci_swizzle},
328  {0x1E0, 0xF9, PPC_604,     "MVME 2300", mvme23xx_intmap, prep_pci_swizzle},
329  {0x1E0, 0xFA, PPC_UNKNOWN, "MVME 2300SC/2600", mvme23xx_intmap, prep_pci_swizzle},
330  {0x1E0, 0xFB, PPC_UNKNOWN, "MVME 2600 with MVME712M", NULL, NULL},
331  {0x1E0, 0xFC, PPC_750,     "MVME 2600/2700 with MVME761", mvme27xx_intmap, prep_pci_swizzle},
332  {0x1E0, 0xFD, PPC_UNKNOWN, "MVME 3600 with MVME712M", NULL, NULL},
333  {0x1E0, 0xFE, PPC_UNKNOWN, "MVME 3600 with MVME761", NULL, NULL},
334  {0x1E0, 0xFF, PPC_UNKNOWN, "MVME 1600-001 or 1600-011", NULL, NULL},
335  {0x000, 0x00, PPC_UNKNOWN, ""},   /* end of probeable values for automatic scan */
336  {0x000, 0x00, PPC_UNKNOWN, "MVME 2100", mvme2100_intmap, prep_pci_swizzle},
337};
338
339prep_t currentPrepType;
340motorolaBoard currentBoard;
341
342prep_t checkPrepBoardType(RESIDUAL *res)
343{
344  prep_t PREP_type;
345  /* figure out what kind of prep workstation we are */
346  if ( res->ResidualLength != 0 ) {
347    if ( !strncmp((char*)res->VitalProductData.PrintableModel,"IBM",3) )
348      PREP_type = PREP_IBM;
349    else if (!strncmp((char*)res->VitalProductData.PrintableModel,
350                      "Radstone",8)){
351      PREP_type = PREP_Radstone;
352    }
353    else
354      PREP_type = PREP_Motorola;
355  }
356  else /* assume motorola if no residual (netboot?) */ {
357    PREP_type = PREP_Motorola;
358  }
359  currentPrepType = PREP_type;
360  return PREP_type;
361}
362
363motorolaBoard getMotorolaBoard(void)
364{
365/*
366 *  At least the MVME2100 does not have the CPU Type and Base Type Registers,
367 *  so it cannot be probed.
368 *
369 *  NOTE: Every path must set currentBoard.
370 */
371#if defined(mvme2100)
372  currentBoard = (motorolaBoard) MVME_2100;
373#else
374  unsigned char  cpu_type;
375  unsigned char  base_mod;
376  ppc_cpu_id_t   proc_type;
377  int            entry;
378  int            mot_entry = -1;
379
380  cpu_type  = inb(MOTOROLA_CPUTYPE_REG) & 0xF0;
381  base_mod  = inb(MOTOROLA_BASETYPE_REG);
382  proc_type = get_ppc_cpu_type ();
383
384  for (entry = 0; mot_boards[entry].cpu_type != 0; entry++) {
385    if ((mot_boards[entry].cpu_type & 0xff) != cpu_type)
386      continue;
387
388    if ((mot_boards[entry].proc_type != PPC_UNKNOWN) &&
389        (mot_boards[entry].proc_type != proc_type))
390      /*
391       * IMD: processor type does not match
392       * (here we distinguish a MVME2300 and a MVME2400)
393       */
394      continue;
395
396    if (mot_boards[entry].base_type != base_mod)
397      continue;
398    else {
399      mot_entry = entry;
400      break;
401    }
402  }
403  if (mot_entry == -1) {
404    printk("Unknown motorola board Please update libbsp/powerpc/shared/motorola/motorola.c\n");
405    printk("cpu_type = %x\n", (unsigned) cpu_type);
406    printk("base_mod = %x\n", (unsigned) base_mod);
407    currentBoard = MOTOROLA_UNKNOWN;
408    return currentBoard;
409  }
410  currentBoard = (motorolaBoard) mot_entry;
411#endif
412  return currentBoard;
413}
414
415const char* motorolaBoardToString(motorolaBoard board)
416{
417  if (board == MOTOROLA_UNKNOWN) return "Unknown motorola board";
418  return (mot_boards[board].name);
419}
420
421const struct _int_map *motorolaIntMap(motorolaBoard board)
422{
423  if (board == MOTOROLA_UNKNOWN) return NULL;
424  /* printk( "IntMap board %d 0x%08x\n", board, mot_boards[board].intmap ); */
425  return mot_boards[board].intmap;
426}
427
428const void *motorolaIntSwizzle(motorolaBoard board)
429{
430  if (board == MOTOROLA_UNKNOWN) return NULL;
431  return (void *)mot_boards[board].swizzler;
432}
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