Blame view
cmd/universe.c
8.39 KB
83d290c56
|
1 |
// SPDX-License-Identifier: GPL-2.0+ |
256e4be81
|
2 3 |
/* * (C) Copyright 2003 Stefan Roese, stefan.roese@esd-electronics.com |
256e4be81
|
4 5 6 7 8 9 10 11 12 |
*/ #include <common.h> #include <command.h> #include <malloc.h> #include <asm/io.h> #include <pci.h> #include <universe.h> |
256e4be81
|
13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 |
#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) { |
e4119560c
|
31 |
int j, result; |
256e4be81
|
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 |
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); |
dcb2f95a6
|
57 58 59 |
if (val & 1) { pci_read_config_dword(busdevfn, PCI_BASE_ADDRESS_0, &val); } |
256e4be81
|
60 61 |
val &= ~0xf; dev->uregs = (UNIVERSE *)val; |
e2ffd59b4
|
62 63 |
debug ("UNIVERSE-Base : %p ", dev->uregs); |
256e4be81
|
64 65 |
/* check mapping */ |
e2ffd59b4
|
66 67 |
debug (" Read via mapping, PCI_ID = %08X ", readl(&dev->uregs->pci_id)); |
256e4be81
|
68 |
if (((PCI_DEVICE <<16) | PCI_VENDOR) != readl(&dev->uregs->pci_id)) { |
e2ffd59b4
|
69 70 71 |
printf ("UNIVERSE: Cannot read PCI-ID via Mapping: %08x ", readl(&dev->uregs->pci_id)); |
256e4be81
|
72 73 74 |
result = -1; goto break_30; } |
e2ffd59b4
|
75 76 |
debug ("PCI_BS = %08X ", readl(&dev->uregs->pci_bs)); |
256e4be81
|
77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 |
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 */ |
dcb2f95a6
|
92 93 94 95 96 97 98 99 100 |
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 */ } |
256e4be81
|
101 102 103 104 105 106 107 108 109 110 |
/* * 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(); |
dcb2f95a6
|
111 |
return 0; |
256e4be81
|
112 113 114 |
break_30: free(dev); break_20: |
dcb2f95a6
|
115 |
return result; |
256e4be81
|
116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 |
} /* * 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) { |
e2ffd59b4
|
138 139 |
printf ("universe: No Image available "); |
256e4be81
|
140 141 142 |
result = -1; goto exit_10; } |
e2ffd59b4
|
143 144 |
debug ("universe: Using image %d ", i); |
256e4be81
|
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 |
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: |
dcb2f95a6
|
190 |
ctl |= 0x00000000; |
256e4be81
|
191 192 |
break; case PCI_MS_IO: |
dcb2f95a6
|
193 |
ctl |= 0x00000001; |
256e4be81
|
194 195 |
break; case PCI_MS_CONFIG: |
dcb2f95a6
|
196 |
ctl |= 0x00000002; |
256e4be81
|
197 198 199 200 201 202 |
break; } ctl |= 0x80000000; /* enable */ writel(ctl, &dev->uregs->lsi[i].ctl); |
e2ffd59b4
|
203 204 205 206 207 208 209 210 211 212 |
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)); |
256e4be81
|
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 |
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) { |
e2ffd59b4
|
240 241 |
printf ("universe: No Image available "); |
256e4be81
|
242 243 244 |
result = -1; goto exit_10; } |
e2ffd59b4
|
245 246 |
debug ("universe: Using image %d ", i); |
256e4be81
|
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 |
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: |
dcb2f95a6
|
280 |
ctl |= 0x00000000; |
256e4be81
|
281 282 |
break; case PCI_MS_IO: |
dcb2f95a6
|
283 |
ctl |= 0x00000001; |
256e4be81
|
284 285 |
break; case PCI_MS_CONFIG: |
dcb2f95a6
|
286 |
ctl |= 0x00000002; |
256e4be81
|
287 288 289 290 291 292 |
break; } ctl |= 0x80f00000; /* enable */ writel(ctl, &dev->uregs->vsi[i].ctl); |
e2ffd59b4
|
293 294 295 296 297 298 299 300 301 302 |
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)); |
256e4be81
|
303 304 305 306 307 308 309 310 311 312 313 |
return 0; exit_10: return -result; } /* * Tundra Universe configuration */ |
54841ab50
|
314 |
int do_universe(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]) |
256e4be81
|
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 |
{ 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, |
2fb2604d5
|
366 |
"initialize and configure Turndra Universe", |
256e4be81
|
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 |
"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 " |
a89c33db9
|
401 |
" 03 -> D32 Data Width" |
256e4be81
|
402 |
); |