6b13f685e
 김민수
BSP 최초 추가
|
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
|
/*
* (C) Copyright 2003 Stefan Roese, stefan.roese@esd-electronics.com
*
* SPDX-License-Identifier: GPL-2.0+
*/
#include <common.h>
#include <command.h>
#include <malloc.h>
#include <asm/io.h>
#include <pci.h>
#include <universe.h>
#define PCI_VENDOR PCI_VENDOR_ID_TUNDRA
#define PCI_DEVICE PCI_DEVICE_ID_TUNDRA_CA91C042
typedef struct _UNI_DEV UNI_DEV;
struct _UNI_DEV {
int bus;
pci_dev_t busdevfn;
UNIVERSE *uregs;
unsigned int pci_bs;
};
static UNI_DEV *dev;
int universe_init(void)
{
int j, result;
pci_dev_t busdevfn;
unsigned int val;
busdevfn = pci_find_device(PCI_VENDOR, PCI_DEVICE, 0);
if (busdevfn == -1) {
puts("No Tundra Universe found!
");
return -1;
}
/* Lets turn Latency off */
pci_write_config_dword(busdevfn, 0x0c, 0);
dev = malloc(sizeof(*dev));
if (NULL == dev) {
puts("UNIVERSE: No memory!
");
result = -1;
goto break_20;
}
memset(dev, 0, sizeof(*dev));
dev->busdevfn = busdevfn;
pci_read_config_dword(busdevfn, PCI_BASE_ADDRESS_1, &val);
if (val & 1) {
pci_read_config_dword(busdevfn, PCI_BASE_ADDRESS_0, &val);
}
val &= ~0xf;
dev->uregs = (UNIVERSE *)val;
debug ("UNIVERSE-Base : %p
", dev->uregs);
/* check mapping */
debug (" Read via mapping, PCI_ID = %08X
", readl(&dev->uregs->pci_id));
if (((PCI_DEVICE <<16) | PCI_VENDOR) != readl(&dev->uregs->pci_id)) {
printf ("UNIVERSE: Cannot read PCI-ID via Mapping: %08x
",
readl(&dev->uregs->pci_id));
result = -1;
goto break_30;
}
debug ("PCI_BS = %08X
", readl(&dev->uregs->pci_bs));
dev->pci_bs = readl(&dev->uregs->pci_bs);
/* turn off windows */
for (j=0; j <4; j ++) {
writel(0x00800000, &dev->uregs->lsi[j].ctl);
writel(0x00800000, &dev->uregs->vsi[j].ctl);
}
/*
* Write to Misc Register
* Set VME Bus Time-out
* Arbitration Mode
* DTACK Enable
*/
writel(0x15040000 | (readl(&dev->uregs->misc_ctl) & 0x00020000), &dev->uregs->misc_ctl);
if (readl(&dev->uregs->misc_ctl) & 0x00020000) {
debug ("System Controller!
"); /* test-only */
} else {
debug ("Not System Controller!
"); /* test-only */
}
/*
* Lets turn off interrupts
*/
writel(0x00000000,&dev->uregs->lint_en); /* Disable interrupts in the Universe first */
writel(0x0000FFFF,&dev->uregs->lint_stat); /* Clear Any Pending Interrupts */
eieio();
writel(0x0000, &dev->uregs->lint_map0); /* Map all ints to 0 */
writel(0x0000, &dev->uregs->lint_map1); /* Map all ints to 0 */
eieio();
return 0;
break_30:
free(dev);
break_20:
return result;
}
/*
* Create pci slave window (access: pci -> vme)
*/
int universe_pci_slave_window(unsigned int pciAddr, unsigned int vmeAddr, int size, int vam, int pms, int vdw)
{
int result, i;
unsigned int ctl = 0;
if (NULL == dev) {
result = -1;
goto exit_10;
}
for (i = 0; i < 4; i++) {
if (0x00800000 == readl(&dev->uregs->lsi[i].ctl))
break;
}
if (i == 4) {
printf ("universe: No Image available
");
result = -1;
goto exit_10;
}
debug ("universe: Using image %d
", i);
writel(pciAddr , &dev->uregs->lsi[i].bs);
writel((pciAddr + size), &dev->uregs->lsi[i].bd);
writel((vmeAddr - pciAddr), &dev->uregs->lsi[i].to);
switch (vam & VME_AM_Axx) {
case VME_AM_A16:
ctl = 0x00000000;
break;
case VME_AM_A24:
ctl = 0x00010000;
break;
case VME_AM_A32:
ctl = 0x00020000;
break;
}
switch (vam & VME_AM_Mxx) {
case VME_AM_DATA:
ctl |= 0x00000000;
break;
case VME_AM_PROG:
ctl |= 0x00008000;
break;
}
if (vam & VME_AM_SUP) {
ctl |= 0x00001000;
}
switch (vdw & VME_FLAG_Dxx) {
case VME_FLAG_D8:
ctl |= 0x00000000;
break;
case VME_FLAG_D16:
ctl |= 0x00400000;
break;
case VME_FLAG_D32:
ctl |= 0x00800000;
break;
}
switch (pms & PCI_MS_Mxx) {
case PCI_MS_MEM:
ctl |= 0x00000000;
break;
case PCI_MS_IO:
ctl |= 0x00000001;
break;
case PCI_MS_CONFIG:
ctl |= 0x00000002;
break;
}
ctl |= 0x80000000; /* enable */
writel(ctl, &dev->uregs->lsi[i].ctl);
debug ("universe: window-addr=%p
", &dev->uregs->lsi[i].ctl);
debug ("universe: pci slave window[%d] ctl=%08x
", i, readl(&dev->uregs->lsi[i].ctl));
debug ("universe: pci slave window[%d] bs=%08x
", i, readl(&dev->uregs->lsi[i].bs));
debug ("universe: pci slave window[%d] bd=%08x
", i, readl(&dev->uregs->lsi[i].bd));
debug ("universe: pci slave window[%d] to=%08x
", i, readl(&dev->uregs->lsi[i].to));
return 0;
exit_10:
return -result;
}
/*
* Create vme slave window (access: vme -> pci)
*/
int universe_vme_slave_window(unsigned int vmeAddr, unsigned int pciAddr, int size, int vam, int pms)
{
int result, i;
unsigned int ctl = 0;
if (NULL == dev) {
result = -1;
goto exit_10;
}
for (i = 0; i < 4; i++) {
if (0x00800000 == readl(&dev->uregs->vsi[i].ctl))
break;
}
if (i == 4) {
printf ("universe: No Image available
");
result = -1;
goto exit_10;
}
debug ("universe: Using image %d
", i);
writel(vmeAddr , &dev->uregs->vsi[i].bs);
writel((vmeAddr + size), &dev->uregs->vsi[i].bd);
writel((pciAddr - vmeAddr), &dev->uregs->vsi[i].to);
switch (vam & VME_AM_Axx) {
case VME_AM_A16:
ctl = 0x00000000;
break;
case VME_AM_A24:
ctl = 0x00010000;
break;
case VME_AM_A32:
ctl = 0x00020000;
break;
}
switch (vam & VME_AM_Mxx) {
case VME_AM_DATA:
ctl |= 0x00000000;
break;
case VME_AM_PROG:
ctl |= 0x00800000;
break;
}
if (vam & VME_AM_SUP) {
ctl |= 0x00100000;
}
switch (pms & PCI_MS_Mxx) {
case PCI_MS_MEM:
ctl |= 0x00000000;
break;
case PCI_MS_IO:
ctl |= 0x00000001;
break;
case PCI_MS_CONFIG:
ctl |= 0x00000002;
break;
}
ctl |= 0x80f00000; /* enable */
writel(ctl, &dev->uregs->vsi[i].ctl);
debug ("universe: window-addr=%p
", &dev->uregs->vsi[i].ctl);
debug ("universe: vme slave window[%d] ctl=%08x
", i, readl(&dev->uregs->vsi[i].ctl));
debug ("universe: vme slave window[%d] bs=%08x
", i, readl(&dev->uregs->vsi[i].bs));
debug ("universe: vme slave window[%d] bd=%08x
", i, readl(&dev->uregs->vsi[i].bd));
debug ("universe: vme slave window[%d] to=%08x
", i, readl(&dev->uregs->vsi[i].to));
return 0;
exit_10:
return -result;
}
/*
* Tundra Universe configuration
*/
int do_universe(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
{
ulong addr1 = 0, addr2 = 0, size = 0, vam = 0, pms = 0, vdw = 0;
char cmd = 'x';
/* get parameter */
if (argc > 1)
cmd = argv[1][0];
if (argc > 2)
addr1 = simple_strtoul(argv[2], NULL, 16);
if (argc > 3)
addr2 = simple_strtoul(argv[3], NULL, 16);
if (argc > 4)
size = simple_strtoul(argv[4], NULL, 16);
if (argc > 5)
vam = simple_strtoul(argv[5], NULL, 16);
if (argc > 6)
pms = simple_strtoul(argv[6], NULL, 16);
if (argc > 7)
vdw = simple_strtoul(argv[7], NULL, 16);
switch (cmd) {
case 'i': /* init */
universe_init();
break;
case 'v': /* vme */
printf("Configuring Universe VME Slave Window (VME->PCI):
");
printf(" vme=%08lx pci=%08lx size=%08lx vam=%02lx pms=%02lx
",
addr1, addr2, size, vam, pms);
universe_vme_slave_window(addr1, addr2, size, vam, pms);
break;
case 'p': /* pci */
printf("Configuring Universe PCI Slave Window (PCI->VME):
");
printf(" pci=%08lx vme=%08lx size=%08lx vam=%02lx pms=%02lx vdw=%02lx
",
addr1, addr2, size, vam, pms, vdw);
universe_pci_slave_window(addr1, addr2, size, vam, pms, vdw);
break;
default:
printf("Universe command %s not supported!
", argv[1]);
}
return 0;
}
U_BOOT_CMD(
universe, 8, 1, do_universe,
"initialize and configure Turndra Universe",
"init
"
" - initialize universe
"
"universe vme [vme_addr] [pci_addr] [size] [vam] [pms]
"
" - create vme slave window (access: vme->pci)
"
"universe pci [pci_addr] [vme_addr] [size] [vam] [pms] [vdw]
"
" - create pci slave window (access: pci->vme)
"
" [vam] = VMEbus Address-Modifier: 01 -> A16 Address Space
"
" 02 -> A24 Address Space
"
" 03 -> A32 Address Space
"
" 04 -> Supervisor AM Code
"
" 10 -> Data AM Code
"
" 20 -> Program AM Code
"
" [pms] = PCI Memory Space: 01 -> Memory Space
"
" 02 -> I/O Space
"
" 03 -> Configuration Space
"
" [vdw] = VMEbus Maximum Datawidth: 01 -> D8 Data Width
"
" 02 -> D16 Data Width
"
" 03 -> D32 Data Width"
);
|