Revision fccd2613
| b/hw/nand.c | ||
|---|---|---|
| 212 | 212 |
|
| 213 | 213 |
static void nand_command(NANDFlashState *s) |
| 214 | 214 |
{
|
| 215 |
unsigned int offset; |
|
| 215 | 216 |
switch (s->cmd) {
|
| 216 | 217 |
case NAND_CMD_READ0: |
| 217 | 218 |
s->iolen = 0; |
| ... | ... | |
| 233 | 234 |
case NAND_CMD_NOSERIALREAD2: |
| 234 | 235 |
if (!(nand_flash_ids[s->chip_id].options & NAND_SAMSUNG_LP)) |
| 235 | 236 |
break; |
| 236 |
|
|
| 237 |
s->blk_load(s, s->addr, s->addr & ((1 << s->addr_shift) - 1)); |
|
| 237 |
offset = s->addr & ((1 << s->addr_shift) - 1); |
|
| 238 |
s->blk_load(s, s->addr, offset); |
|
| 239 |
if (s->gnd) |
|
| 240 |
s->iolen = (1 << s->page_shift) - offset; |
|
| 241 |
else |
|
| 242 |
s->iolen = (1 << s->page_shift) + (1 << s->oob_shift) - offset; |
|
| 238 | 243 |
break; |
| 239 | 244 |
|
| 240 | 245 |
case NAND_CMD_RESET: |
| ... | ... | |
| 380 | 385 |
|
| 381 | 386 |
if (s->cmd != NAND_CMD_RANDOMREAD2) {
|
| 382 | 387 |
s->addrlen = 0; |
| 383 |
s->addr = 0; |
|
| 384 | 388 |
} |
| 385 | 389 |
} |
| 386 | 390 |
|
| 387 | 391 |
if (s->ale) {
|
| 388 |
s->addr |= value << (s->addrlen * 8); |
|
| 392 |
unsigned int shift = s->addrlen * 8; |
|
| 393 |
unsigned int mask = ~(0xff << shift); |
|
| 394 |
unsigned int v = value << shift; |
|
| 395 |
|
|
| 396 |
s->addr = (s->addr & mask) | v; |
|
| 389 | 397 |
s->addrlen ++; |
| 390 | 398 |
|
| 391 | 399 |
if (s->addrlen == 1 && s->cmd == NAND_CMD_READID) |
| ... | ... | |
| 435 | 443 |
return 0; |
| 436 | 444 |
|
| 437 | 445 |
s->iolen --; |
| 446 |
s->addr++; |
|
| 438 | 447 |
return *(s->ioaddr ++); |
| 439 | 448 |
} |
| 440 | 449 |
|
| ... | ... | |
| 633 | 642 |
offset, PAGE_SIZE + OOB_SIZE - offset); |
| 634 | 643 |
s->ioaddr = s->io; |
| 635 | 644 |
} |
| 636 |
|
|
| 637 |
s->addr &= PAGE_SIZE - 1; |
|
| 638 |
s->addr += PAGE_SIZE; |
|
| 639 | 645 |
} |
| 640 | 646 |
|
| 641 | 647 |
static void glue(nand_init_, PAGE_SIZE)(NANDFlashState *s) |
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