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[people/ms/u-boot.git] / drivers / block / fsl_sata.c
1 /*
2 * Copyright (C) 2008,2010 Freescale Semiconductor, Inc.
3 * Dave Liu <daveliu@freescale.com>
4 *
5 * SPDX-License-Identifier: GPL-2.0+
6 */
7
8 #include <common.h>
9 #include <command.h>
10 #include <asm/io.h>
11 #include <asm/processor.h>
12 #include <asm/fsl_serdes.h>
13 #include <malloc.h>
14 #include <libata.h>
15 #include <fis.h>
16 #include <sata.h>
17 #include "fsl_sata.h"
18
19 #ifndef CONFIG_SYS_SATA1_FLAGS
20 #define CONFIG_SYS_SATA1_FLAGS FLAGS_DMA
21 #endif
22 #ifndef CONFIG_SYS_SATA2_FLAGS
23 #define CONFIG_SYS_SATA2_FLAGS FLAGS_DMA
24 #endif
25
26 static struct fsl_sata_info fsl_sata_info[] = {
27 #ifdef CONFIG_SATA1
28 {CONFIG_SYS_SATA1, CONFIG_SYS_SATA1_FLAGS},
29 #else
30 {0, 0},
31 #endif
32 #ifdef CONFIG_SATA2
33 {CONFIG_SYS_SATA2, CONFIG_SYS_SATA2_FLAGS},
34 #else
35 {0, 0},
36 #endif
37 };
38
39 static inline void sdelay(unsigned long sec)
40 {
41 unsigned long i;
42 for (i = 0; i < sec; i++)
43 mdelay(1000);
44 }
45
46 static void fsl_sata_dump_sfis(struct sata_fis_d2h *s)
47 {
48 printf("Status FIS dump:\n\r");
49 printf("fis_type: %02x\n\r", s->fis_type);
50 printf("pm_port_i: %02x\n\r", s->pm_port_i);
51 printf("status: %02x\n\r", s->status);
52 printf("error: %02x\n\r", s->error);
53 printf("lba_low: %02x\n\r", s->lba_low);
54 printf("lba_mid: %02x\n\r", s->lba_mid);
55 printf("lba_high: %02x\n\r", s->lba_high);
56 printf("device: %02x\n\r", s->device);
57 printf("lba_low_exp: %02x\n\r", s->lba_low_exp);
58 printf("lba_mid_exp: %02x\n\r", s->lba_mid_exp);
59 printf("lba_high_exp: %02x\n\r", s->lba_high_exp);
60 printf("res1: %02x\n\r", s->res1);
61 printf("sector_count: %02x\n\r", s->sector_count);
62 printf("sector_count_exp: %02x\n\r", s->sector_count_exp);
63 }
64
65 static int ata_wait_register(unsigned __iomem *addr, u32 mask,
66 u32 val, u32 timeout_msec)
67 {
68 int i;
69 u32 temp;
70
71 for (i = 0; (((temp = in_le32(addr)) & mask) != val)
72 && i < timeout_msec; i++)
73 mdelay(1);
74 return (i < timeout_msec) ? 0 : -1;
75 }
76
77 int init_sata(int dev)
78 {
79 u32 length, align;
80 cmd_hdr_tbl_t *cmd_hdr;
81 u32 cda;
82 u32 val32;
83 fsl_sata_reg_t __iomem *reg;
84 u32 sig;
85 int i;
86 fsl_sata_t *sata;
87
88 if (dev < 0 || dev > (CONFIG_SYS_SATA_MAX_DEVICE - 1)) {
89 printf("the sata index %d is out of ranges\n\r", dev);
90 return -1;
91 }
92
93 #ifdef CONFIG_MPC85xx
94 if ((dev == 0) && (!is_serdes_configured(SATA1))) {
95 printf("SATA%d [dev = %d] is not enabled\n", dev+1, dev);
96 return -1;
97 }
98 if ((dev == 1) && (!is_serdes_configured(SATA2))) {
99 printf("SATA%d [dev = %d] is not enabled\n", dev+1, dev);
100 return -1;
101 }
102 #endif
103
104 /* Allocate SATA device driver struct */
105 sata = (fsl_sata_t *)malloc(sizeof(fsl_sata_t));
106 if (!sata) {
107 printf("alloc the sata device struct failed\n\r");
108 return -1;
109 }
110 /* Zero all of the device driver struct */
111 memset((void *)sata, 0, sizeof(fsl_sata_t));
112
113 /* Save the private struct to block device struct */
114 sata_dev_desc[dev].priv = (void *)sata;
115
116 snprintf(sata->name, 12, "SATA%d", dev);
117
118 /* Set the controller register base address to device struct */
119 reg = (fsl_sata_reg_t *)(fsl_sata_info[dev].sata_reg_base);
120 sata->reg_base = reg;
121
122 /* Allocate the command header table, 4 bytes aligned */
123 length = sizeof(struct cmd_hdr_tbl);
124 align = SATA_HC_CMD_HDR_TBL_ALIGN;
125 sata->cmd_hdr_tbl_offset = (void *)malloc(length + align);
126 if (!sata) {
127 printf("alloc the command header failed\n\r");
128 return -1;
129 }
130
131 cmd_hdr = (cmd_hdr_tbl_t *)(((u32)sata->cmd_hdr_tbl_offset + align)
132 & ~(align - 1));
133 sata->cmd_hdr = cmd_hdr;
134
135 /* Zero all of the command header table */
136 memset((void *)sata->cmd_hdr_tbl_offset, 0, length + align);
137
138 /* Allocate command descriptor for all command */
139 length = sizeof(struct cmd_desc) * SATA_HC_MAX_CMD;
140 align = SATA_HC_CMD_DESC_ALIGN;
141 sata->cmd_desc_offset = (void *)malloc(length + align);
142 if (!sata->cmd_desc_offset) {
143 printf("alloc the command descriptor failed\n\r");
144 return -1;
145 }
146 sata->cmd_desc = (cmd_desc_t *)(((u32)sata->cmd_desc_offset + align)
147 & ~(align - 1));
148 /* Zero all of command descriptor */
149 memset((void *)sata->cmd_desc_offset, 0, length + align);
150
151 /* Link the command descriptor to command header */
152 for (i = 0; i < SATA_HC_MAX_CMD; i++) {
153 cda = ((u32)sata->cmd_desc + SATA_HC_CMD_DESC_SIZE * i)
154 & ~(CMD_HDR_CDA_ALIGN - 1);
155 cmd_hdr->cmd_slot[i].cda = cpu_to_le32(cda);
156 }
157
158 /* To have safe state, force the controller offline */
159 val32 = in_le32(&reg->hcontrol);
160 val32 &= ~HCONTROL_ONOFF;
161 val32 |= HCONTROL_FORCE_OFFLINE;
162 out_le32(&reg->hcontrol, val32);
163
164 /* Wait the controller offline */
165 ata_wait_register(&reg->hstatus, HSTATUS_ONOFF, 0, 1000);
166
167 /* Set the command header base address to CHBA register to tell DMA */
168 out_le32(&reg->chba, (u32)cmd_hdr & ~0x3);
169
170 /* Snoop for the command header */
171 val32 = in_le32(&reg->hcontrol);
172 val32 |= HCONTROL_HDR_SNOOP;
173 out_le32(&reg->hcontrol, val32);
174
175 /* Disable all of interrupts */
176 val32 = in_le32(&reg->hcontrol);
177 val32 &= ~HCONTROL_INT_EN_ALL;
178 out_le32(&reg->hcontrol, val32);
179
180 /* Clear all of interrupts */
181 val32 = in_le32(&reg->hstatus);
182 out_le32(&reg->hstatus, val32);
183
184 /* Set the ICC, no interrupt coalescing */
185 out_le32(&reg->icc, 0x01000000);
186
187 /* No PM attatched, the SATA device direct connect */
188 out_le32(&reg->cqpmp, 0);
189
190 /* Clear SError register */
191 val32 = in_le32(&reg->serror);
192 out_le32(&reg->serror, val32);
193
194 /* Clear CER register */
195 val32 = in_le32(&reg->cer);
196 out_le32(&reg->cer, val32);
197
198 /* Clear DER register */
199 val32 = in_le32(&reg->der);
200 out_le32(&reg->der, val32);
201
202 /* No device detection or initialization action requested */
203 out_le32(&reg->scontrol, 0x00000300);
204
205 /* Configure the transport layer, default value */
206 out_le32(&reg->transcfg, 0x08000016);
207
208 /* Configure the link layer, default value */
209 out_le32(&reg->linkcfg, 0x0000ff34);
210
211 /* Bring the controller online */
212 val32 = in_le32(&reg->hcontrol);
213 val32 |= HCONTROL_ONOFF;
214 out_le32(&reg->hcontrol, val32);
215
216 mdelay(100);
217
218 /* print sata device name */
219 if (!dev)
220 printf("%s ", sata->name);
221 else
222 printf(" %s ", sata->name);
223
224 /* Wait PHY RDY signal changed for 500ms */
225 ata_wait_register(&reg->hstatus, HSTATUS_PHY_RDY,
226 HSTATUS_PHY_RDY, 500);
227
228 /* Check PHYRDY */
229 val32 = in_le32(&reg->hstatus);
230 if (val32 & HSTATUS_PHY_RDY) {
231 sata->link = 1;
232 } else {
233 sata->link = 0;
234 printf("(No RDY)\n\r");
235 return -1;
236 }
237
238 /* Wait for signature updated, which is 1st D2H */
239 ata_wait_register(&reg->hstatus, HSTATUS_SIGNATURE,
240 HSTATUS_SIGNATURE, 10000);
241
242 if (val32 & HSTATUS_SIGNATURE) {
243 sig = in_le32(&reg->sig);
244 debug("Signature updated, the sig =%08x\n\r", sig);
245 sata->ata_device_type = ata_dev_classify(sig);
246 }
247
248 /* Check the speed */
249 val32 = in_le32(&reg->sstatus);
250 if ((val32 & SSTATUS_SPD_MASK) == SSTATUS_SPD_GEN1)
251 printf("(1.5 Gbps)\n\r");
252 else if ((val32 & SSTATUS_SPD_MASK) == SSTATUS_SPD_GEN2)
253 printf("(3 Gbps)\n\r");
254
255 return 0;
256 }
257
258 int reset_sata(int dev)
259 {
260 return 0;
261 }
262
263 static void fsl_sata_dump_regs(fsl_sata_reg_t __iomem *reg)
264 {
265 printf("\n\rSATA: %08x\n\r", (u32)reg);
266 printf("CQR: %08x\n\r", in_le32(&reg->cqr));
267 printf("CAR: %08x\n\r", in_le32(&reg->car));
268 printf("CCR: %08x\n\r", in_le32(&reg->ccr));
269 printf("CER: %08x\n\r", in_le32(&reg->cer));
270 printf("CQR: %08x\n\r", in_le32(&reg->cqr));
271 printf("DER: %08x\n\r", in_le32(&reg->der));
272 printf("CHBA: %08x\n\r", in_le32(&reg->chba));
273 printf("HStatus: %08x\n\r", in_le32(&reg->hstatus));
274 printf("HControl: %08x\n\r", in_le32(&reg->hcontrol));
275 printf("CQPMP: %08x\n\r", in_le32(&reg->cqpmp));
276 printf("SIG: %08x\n\r", in_le32(&reg->sig));
277 printf("ICC: %08x\n\r", in_le32(&reg->icc));
278 printf("SStatus: %08x\n\r", in_le32(&reg->sstatus));
279 printf("SError: %08x\n\r", in_le32(&reg->serror));
280 printf("SControl: %08x\n\r", in_le32(&reg->scontrol));
281 printf("SNotification: %08x\n\r", in_le32(&reg->snotification));
282 printf("TransCfg: %08x\n\r", in_le32(&reg->transcfg));
283 printf("TransStatus: %08x\n\r", in_le32(&reg->transstatus));
284 printf("LinkCfg: %08x\n\r", in_le32(&reg->linkcfg));
285 printf("LinkCfg1: %08x\n\r", in_le32(&reg->linkcfg1));
286 printf("LinkCfg2: %08x\n\r", in_le32(&reg->linkcfg2));
287 printf("LinkStatus: %08x\n\r", in_le32(&reg->linkstatus));
288 printf("LinkStatus1: %08x\n\r", in_le32(&reg->linkstatus1));
289 printf("PhyCtrlCfg: %08x\n\r", in_le32(&reg->phyctrlcfg));
290 printf("SYSPR: %08x\n\r", in_be32(&reg->syspr));
291 }
292
293 static int fsl_ata_exec_ata_cmd(struct fsl_sata *sata, struct sata_fis_h2d *cfis,
294 int is_ncq, int tag, u8 *buffer, u32 len)
295 {
296 cmd_hdr_entry_t *cmd_hdr;
297 cmd_desc_t *cmd_desc;
298 sata_fis_h2d_t *h2d;
299 prd_entry_t *prde;
300 u32 ext_c_ddc;
301 u32 prde_count;
302 u32 val32;
303 u32 ttl;
304 fsl_sata_reg_t __iomem *reg = sata->reg_base;
305 int i;
306
307 /* Check xfer length */
308 if (len > SATA_HC_MAX_XFER_LEN) {
309 printf("max transfer length is 64MB\n\r");
310 return 0;
311 }
312
313 /* Setup the command descriptor */
314 cmd_desc = sata->cmd_desc + tag;
315
316 /* Get the pointer cfis of command descriptor */
317 h2d = (sata_fis_h2d_t *)cmd_desc->cfis;
318
319 /* Zero the cfis of command descriptor */
320 memset((void *)h2d, 0, SATA_HC_CMD_DESC_CFIS_SIZE);
321
322 /* Copy the cfis from user to command descriptor */
323 h2d->fis_type = cfis->fis_type;
324 h2d->pm_port_c = cfis->pm_port_c;
325 h2d->command = cfis->command;
326
327 h2d->features = cfis->features;
328 h2d->features_exp = cfis->features_exp;
329
330 h2d->lba_low = cfis->lba_low;
331 h2d->lba_mid = cfis->lba_mid;
332 h2d->lba_high = cfis->lba_high;
333 h2d->lba_low_exp = cfis->lba_low_exp;
334 h2d->lba_mid_exp = cfis->lba_mid_exp;
335 h2d->lba_high_exp = cfis->lba_high_exp;
336
337 if (!is_ncq) {
338 h2d->sector_count = cfis->sector_count;
339 h2d->sector_count_exp = cfis->sector_count_exp;
340 } else { /* NCQ */
341 h2d->sector_count = (u8)(tag << 3);
342 }
343
344 h2d->device = cfis->device;
345 h2d->control = cfis->control;
346
347 /* Setup the PRD table */
348 prde = (prd_entry_t *)cmd_desc->prdt;
349 memset((void *)prde, 0, sizeof(struct prdt));
350
351 prde_count = 0;
352 ttl = len;
353 for (i = 0; i < SATA_HC_MAX_PRD_DIRECT; i++) {
354 if (!len)
355 break;
356 prde->dba = cpu_to_le32((u32)buffer & ~0x3);
357 debug("dba = %08x\n\r", (u32)buffer);
358
359 if (len < PRD_ENTRY_MAX_XFER_SZ) {
360 ext_c_ddc = PRD_ENTRY_DATA_SNOOP | len;
361 debug("ext_c_ddc1 = %08x, len = %08x\n\r", ext_c_ddc, len);
362 prde->ext_c_ddc = cpu_to_le32(ext_c_ddc);
363 prde_count++;
364 prde++;
365 break;
366 } else {
367 ext_c_ddc = PRD_ENTRY_DATA_SNOOP; /* 4M bytes */
368 debug("ext_c_ddc2 = %08x, len = %08x\n\r", ext_c_ddc, len);
369 prde->ext_c_ddc = cpu_to_le32(ext_c_ddc);
370 buffer += PRD_ENTRY_MAX_XFER_SZ;
371 len -= PRD_ENTRY_MAX_XFER_SZ;
372 prde_count++;
373 prde++;
374 }
375 }
376
377 /* Setup the command slot of cmd hdr */
378 cmd_hdr = (cmd_hdr_entry_t *)&sata->cmd_hdr->cmd_slot[tag];
379
380 cmd_hdr->cda = cpu_to_le32((u32)cmd_desc & ~0x3);
381
382 val32 = prde_count << CMD_HDR_PRD_ENTRY_SHIFT;
383 val32 |= sizeof(sata_fis_h2d_t);
384 cmd_hdr->prde_fis_len = cpu_to_le32(val32);
385
386 cmd_hdr->ttl = cpu_to_le32(ttl);
387
388 if (!is_ncq) {
389 val32 = CMD_HDR_ATTR_RES | CMD_HDR_ATTR_SNOOP;
390 } else {
391 val32 = CMD_HDR_ATTR_RES | CMD_HDR_ATTR_SNOOP | CMD_HDR_ATTR_FPDMA;
392 }
393
394 tag &= CMD_HDR_ATTR_TAG;
395 val32 |= tag;
396
397 debug("attribute = %08x\n\r", val32);
398 cmd_hdr->attribute = cpu_to_le32(val32);
399
400 /* Make sure cmd desc and cmd slot valid before commmand issue */
401 sync();
402
403 /* PMP*/
404 val32 = (u32)(h2d->pm_port_c & 0x0f);
405 out_le32(&reg->cqpmp, val32);
406
407 /* Wait no active */
408 if (ata_wait_register(&reg->car, (1 << tag), 0, 10000))
409 printf("Wait no active time out\n\r");
410
411 /* Issue command */
412 if (!(in_le32(&reg->cqr) & (1 << tag))) {
413 val32 = 1 << tag;
414 out_le32(&reg->cqr, val32);
415 }
416
417 /* Wait command completed for 10s */
418 if (ata_wait_register(&reg->ccr, (1 << tag), (1 << tag), 10000)) {
419 if (!is_ncq)
420 printf("Non-NCQ command time out\n\r");
421 else
422 printf("NCQ command time out\n\r");
423 }
424
425 val32 = in_le32(&reg->cer);
426
427 if (val32) {
428 u32 der;
429 fsl_sata_dump_sfis((struct sata_fis_d2h *)cmd_desc->sfis);
430 printf("CE at device\n\r");
431 fsl_sata_dump_regs(reg);
432 der = in_le32(&reg->der);
433 out_le32(&reg->cer, val32);
434 out_le32(&reg->der, der);
435 }
436
437 /* Clear complete flags */
438 val32 = in_le32(&reg->ccr);
439 out_le32(&reg->ccr, val32);
440
441 return len;
442 }
443
444 static int fsl_ata_exec_reset_cmd(struct fsl_sata *sata, struct sata_fis_h2d *cfis,
445 int tag, u8 *buffer, u32 len)
446 {
447 return 0;
448 }
449
450 static int fsl_sata_exec_cmd(struct fsl_sata *sata, struct sata_fis_h2d *cfis,
451 enum cmd_type command_type, int tag, u8 *buffer, u32 len)
452 {
453 int rc;
454
455 if (tag > SATA_HC_MAX_CMD || tag < 0) {
456 printf("tag is out of range, tag=%d\n\r", tag);
457 return -1;
458 }
459
460 switch (command_type) {
461 case CMD_ATA:
462 rc = fsl_ata_exec_ata_cmd(sata, cfis, 0, tag, buffer, len);
463 return rc;
464 case CMD_RESET:
465 rc = fsl_ata_exec_reset_cmd(sata, cfis, tag, buffer, len);
466 return rc;
467 case CMD_NCQ:
468 rc = fsl_ata_exec_ata_cmd(sata, cfis, 1, tag, buffer, len);
469 return rc;
470 case CMD_ATAPI:
471 case CMD_VENDOR_BIST:
472 case CMD_BIST:
473 printf("not support now\n\r");
474 return -1;
475 default:
476 break;
477 }
478
479 return -1;
480 }
481
482 static void fsl_sata_identify(int dev, u16 *id)
483 {
484 fsl_sata_t *sata = (fsl_sata_t *)sata_dev_desc[dev].priv;
485 struct sata_fis_h2d h2d, *cfis = &h2d;
486
487 memset(cfis, 0, sizeof(struct sata_fis_h2d));
488
489 cfis->fis_type = SATA_FIS_TYPE_REGISTER_H2D;
490 cfis->pm_port_c = 0x80; /* is command */
491 cfis->command = ATA_CMD_ID_ATA;
492
493 fsl_sata_exec_cmd(sata, cfis, CMD_ATA, 0, (u8 *)id, ATA_ID_WORDS * 2);
494 ata_swap_buf_le16(id, ATA_ID_WORDS);
495 }
496
497 static void fsl_sata_xfer_mode(int dev, u16 *id)
498 {
499 fsl_sata_t *sata = (fsl_sata_t *)sata_dev_desc[dev].priv;
500
501 sata->pio = id[ATA_ID_PIO_MODES];
502 sata->mwdma = id[ATA_ID_MWDMA_MODES];
503 sata->udma = id[ATA_ID_UDMA_MODES];
504 debug("pio %04x, mwdma %04x, udma %04x\n\r", sata->pio, sata->mwdma, sata->udma);
505 }
506
507 static void fsl_sata_set_features(int dev)
508 {
509 fsl_sata_t *sata = (fsl_sata_t *)sata_dev_desc[dev].priv;
510 struct sata_fis_h2d h2d, *cfis = &h2d;
511 u8 udma_cap;
512
513 memset(cfis, 0, sizeof(struct sata_fis_h2d));
514
515 cfis->fis_type = SATA_FIS_TYPE_REGISTER_H2D;
516 cfis->pm_port_c = 0x80; /* is command */
517 cfis->command = ATA_CMD_SET_FEATURES;
518 cfis->features = SETFEATURES_XFER;
519
520 /* First check the device capablity */
521 udma_cap = (u8)(sata->udma & 0xff);
522 debug("udma_cap %02x\n\r", udma_cap);
523
524 if (udma_cap == ATA_UDMA6)
525 cfis->sector_count = XFER_UDMA_6;
526 if (udma_cap == ATA_UDMA5)
527 cfis->sector_count = XFER_UDMA_5;
528 if (udma_cap == ATA_UDMA4)
529 cfis->sector_count = XFER_UDMA_4;
530 if (udma_cap == ATA_UDMA3)
531 cfis->sector_count = XFER_UDMA_3;
532
533 fsl_sata_exec_cmd(sata, cfis, CMD_ATA, 0, NULL, 0);
534 }
535
536 static u32 fsl_sata_rw_cmd(int dev, u32 start, u32 blkcnt, u8 *buffer, int is_write)
537 {
538 fsl_sata_t *sata = (fsl_sata_t *)sata_dev_desc[dev].priv;
539 struct sata_fis_h2d h2d, *cfis = &h2d;
540 u32 block;
541
542 block = start;
543
544 memset(cfis, 0, sizeof(struct sata_fis_h2d));
545
546 cfis->fis_type = SATA_FIS_TYPE_REGISTER_H2D;
547 cfis->pm_port_c = 0x80; /* is command */
548 cfis->command = (is_write) ? ATA_CMD_WRITE : ATA_CMD_READ;
549 cfis->device = ATA_LBA;
550
551 cfis->device |= (block >> 24) & 0xf;
552 cfis->lba_high = (block >> 16) & 0xff;
553 cfis->lba_mid = (block >> 8) & 0xff;
554 cfis->lba_low = block & 0xff;
555 cfis->sector_count = (u8)(blkcnt & 0xff);
556
557 fsl_sata_exec_cmd(sata, cfis, CMD_ATA, 0, buffer, ATA_SECT_SIZE * blkcnt);
558 return blkcnt;
559 }
560
561 static void fsl_sata_flush_cache(int dev)
562 {
563 fsl_sata_t *sata = (fsl_sata_t *)sata_dev_desc[dev].priv;
564 struct sata_fis_h2d h2d, *cfis = &h2d;
565
566 memset(cfis, 0, sizeof(struct sata_fis_h2d));
567
568 cfis->fis_type = SATA_FIS_TYPE_REGISTER_H2D;
569 cfis->pm_port_c = 0x80; /* is command */
570 cfis->command = ATA_CMD_FLUSH;
571
572 fsl_sata_exec_cmd(sata, cfis, CMD_ATA, 0, NULL, 0);
573 }
574
575 static u32 fsl_sata_rw_cmd_ext(int dev, u32 start, u32 blkcnt, u8 *buffer, int is_write)
576 {
577 fsl_sata_t *sata = (fsl_sata_t *)sata_dev_desc[dev].priv;
578 struct sata_fis_h2d h2d, *cfis = &h2d;
579 u64 block;
580
581 block = (u64)start;
582
583 memset(cfis, 0, sizeof(struct sata_fis_h2d));
584
585 cfis->fis_type = SATA_FIS_TYPE_REGISTER_H2D;
586 cfis->pm_port_c = 0x80; /* is command */
587
588 cfis->command = (is_write) ? ATA_CMD_WRITE_EXT
589 : ATA_CMD_READ_EXT;
590
591 cfis->lba_high_exp = (block >> 40) & 0xff;
592 cfis->lba_mid_exp = (block >> 32) & 0xff;
593 cfis->lba_low_exp = (block >> 24) & 0xff;
594 cfis->lba_high = (block >> 16) & 0xff;
595 cfis->lba_mid = (block >> 8) & 0xff;
596 cfis->lba_low = block & 0xff;
597 cfis->device = ATA_LBA;
598 cfis->sector_count_exp = (blkcnt >> 8) & 0xff;
599 cfis->sector_count = blkcnt & 0xff;
600
601 fsl_sata_exec_cmd(sata, cfis, CMD_ATA, 0, buffer, ATA_SECT_SIZE * blkcnt);
602 return blkcnt;
603 }
604
605 static u32 fsl_sata_rw_ncq_cmd(int dev, u32 start, u32 blkcnt, u8 *buffer,
606 int is_write)
607 {
608 fsl_sata_t *sata = (fsl_sata_t *)sata_dev_desc[dev].priv;
609 struct sata_fis_h2d h2d, *cfis = &h2d;
610 int ncq_channel;
611 u64 block;
612
613 if (sata->lba48 != 1) {
614 printf("execute FPDMA command on non-LBA48 hard disk\n\r");
615 return -1;
616 }
617
618 block = (u64)start;
619
620 memset(cfis, 0, sizeof(struct sata_fis_h2d));
621
622 cfis->fis_type = SATA_FIS_TYPE_REGISTER_H2D;
623 cfis->pm_port_c = 0x80; /* is command */
624
625 cfis->command = (is_write) ? ATA_CMD_FPDMA_WRITE
626 : ATA_CMD_FPDMA_READ;
627
628 cfis->lba_high_exp = (block >> 40) & 0xff;
629 cfis->lba_mid_exp = (block >> 32) & 0xff;
630 cfis->lba_low_exp = (block >> 24) & 0xff;
631 cfis->lba_high = (block >> 16) & 0xff;
632 cfis->lba_mid = (block >> 8) & 0xff;
633 cfis->lba_low = block & 0xff;
634
635 cfis->device = ATA_LBA;
636 cfis->features_exp = (blkcnt >> 8) & 0xff;
637 cfis->features = blkcnt & 0xff;
638
639 if (sata->queue_depth >= SATA_HC_MAX_CMD)
640 ncq_channel = SATA_HC_MAX_CMD - 1;
641 else
642 ncq_channel = sata->queue_depth - 1;
643
644 /* Use the latest queue */
645 fsl_sata_exec_cmd(sata, cfis, CMD_NCQ, ncq_channel, buffer, ATA_SECT_SIZE * blkcnt);
646 return blkcnt;
647 }
648
649 static void fsl_sata_flush_cache_ext(int dev)
650 {
651 fsl_sata_t *sata = (fsl_sata_t *)sata_dev_desc[dev].priv;
652 struct sata_fis_h2d h2d, *cfis = &h2d;
653
654 memset(cfis, 0, sizeof(struct sata_fis_h2d));
655
656 cfis->fis_type = SATA_FIS_TYPE_REGISTER_H2D;
657 cfis->pm_port_c = 0x80; /* is command */
658 cfis->command = ATA_CMD_FLUSH_EXT;
659
660 fsl_sata_exec_cmd(sata, cfis, CMD_ATA, 0, NULL, 0);
661 }
662
663 static void fsl_sata_init_wcache(int dev, u16 *id)
664 {
665 fsl_sata_t *sata = (fsl_sata_t *)sata_dev_desc[dev].priv;
666
667 if (ata_id_has_wcache(id) && ata_id_wcache_enabled(id))
668 sata->wcache = 1;
669 if (ata_id_has_flush(id))
670 sata->flush = 1;
671 if (ata_id_has_flush_ext(id))
672 sata->flush_ext = 1;
673 }
674
675 static int fsl_sata_get_wcache(int dev)
676 {
677 fsl_sata_t *sata = (fsl_sata_t *)sata_dev_desc[dev].priv;
678 return sata->wcache;
679 }
680
681 static int fsl_sata_get_flush(int dev)
682 {
683 fsl_sata_t *sata = (fsl_sata_t *)sata_dev_desc[dev].priv;
684 return sata->flush;
685 }
686
687 static int fsl_sata_get_flush_ext(int dev)
688 {
689 fsl_sata_t *sata = (fsl_sata_t *)sata_dev_desc[dev].priv;
690 return sata->flush_ext;
691 }
692
693 static u32 ata_low_level_rw_lba48(int dev, u32 blknr, lbaint_t blkcnt,
694 const void *buffer, int is_write)
695 {
696 u32 start, blks;
697 u8 *addr;
698 int max_blks;
699
700 start = blknr;
701 blks = blkcnt;
702 addr = (u8 *)buffer;
703
704 max_blks = ATA_MAX_SECTORS_LBA48;
705 do {
706 if (blks > max_blks) {
707 if (fsl_sata_info[dev].flags != FLAGS_FPDMA)
708 fsl_sata_rw_cmd_ext(dev, start, max_blks, addr, is_write);
709 else
710 fsl_sata_rw_ncq_cmd(dev, start, max_blks, addr, is_write);
711 start += max_blks;
712 blks -= max_blks;
713 addr += ATA_SECT_SIZE * max_blks;
714 } else {
715 if (fsl_sata_info[dev].flags != FLAGS_FPDMA)
716 fsl_sata_rw_cmd_ext(dev, start, blks, addr, is_write);
717 else
718 fsl_sata_rw_ncq_cmd(dev, start, blks, addr, is_write);
719 start += blks;
720 blks = 0;
721 addr += ATA_SECT_SIZE * blks;
722 }
723 } while (blks != 0);
724
725 return blkcnt;
726 }
727
728 static u32 ata_low_level_rw_lba28(int dev, u32 blknr, u32 blkcnt,
729 const void *buffer, int is_write)
730 {
731 u32 start, blks;
732 u8 *addr;
733 int max_blks;
734
735 start = blknr;
736 blks = blkcnt;
737 addr = (u8 *)buffer;
738
739 max_blks = ATA_MAX_SECTORS;
740 do {
741 if (blks > max_blks) {
742 fsl_sata_rw_cmd(dev, start, max_blks, addr, is_write);
743 start += max_blks;
744 blks -= max_blks;
745 addr += ATA_SECT_SIZE * max_blks;
746 } else {
747 fsl_sata_rw_cmd(dev, start, blks, addr, is_write);
748 start += blks;
749 blks = 0;
750 addr += ATA_SECT_SIZE * blks;
751 }
752 } while (blks != 0);
753
754 return blkcnt;
755 }
756
757 /*
758 * SATA interface between low level driver and command layer
759 */
760 ulong sata_read(int dev, ulong blknr, lbaint_t blkcnt, void *buffer)
761 {
762 u32 rc;
763 fsl_sata_t *sata = (fsl_sata_t *)sata_dev_desc[dev].priv;
764
765 if (sata->lba48)
766 rc = ata_low_level_rw_lba48(dev, blknr, blkcnt, buffer, READ_CMD);
767 else
768 rc = ata_low_level_rw_lba28(dev, blknr, blkcnt, buffer, READ_CMD);
769 return rc;
770 }
771
772 ulong sata_write(int dev, ulong blknr, lbaint_t blkcnt, const void *buffer)
773 {
774 u32 rc;
775 fsl_sata_t *sata = (fsl_sata_t *)sata_dev_desc[dev].priv;
776
777 if (sata->lba48) {
778 rc = ata_low_level_rw_lba48(dev, blknr, blkcnt, buffer, WRITE_CMD);
779 if (fsl_sata_get_wcache(dev) && fsl_sata_get_flush_ext(dev))
780 fsl_sata_flush_cache_ext(dev);
781 } else {
782 rc = ata_low_level_rw_lba28(dev, blknr, blkcnt, buffer, WRITE_CMD);
783 if (fsl_sata_get_wcache(dev) && fsl_sata_get_flush(dev))
784 fsl_sata_flush_cache(dev);
785 }
786 return rc;
787 }
788
789 int scan_sata(int dev)
790 {
791 fsl_sata_t *sata = (fsl_sata_t *)sata_dev_desc[dev].priv;
792 unsigned char serial[ATA_ID_SERNO_LEN + 1];
793 unsigned char firmware[ATA_ID_FW_REV_LEN + 1];
794 unsigned char product[ATA_ID_PROD_LEN + 1];
795 u16 *id;
796 u64 n_sectors;
797
798 /* if no detected link */
799 if (!sata->link)
800 return -1;
801
802 id = (u16 *)malloc(ATA_ID_WORDS * 2);
803 if (!id) {
804 printf("id malloc failed\n\r");
805 return -1;
806 }
807
808 /* Identify device to get information */
809 fsl_sata_identify(dev, id);
810
811 /* Serial number */
812 ata_id_c_string(id, serial, ATA_ID_SERNO, sizeof(serial));
813 memcpy(sata_dev_desc[dev].product, serial, sizeof(serial));
814
815 /* Firmware version */
816 ata_id_c_string(id, firmware, ATA_ID_FW_REV, sizeof(firmware));
817 memcpy(sata_dev_desc[dev].revision, firmware, sizeof(firmware));
818
819 /* Product model */
820 ata_id_c_string(id, product, ATA_ID_PROD, sizeof(product));
821 memcpy(sata_dev_desc[dev].vendor, product, sizeof(product));
822
823 /* Totoal sectors */
824 n_sectors = ata_id_n_sectors(id);
825 sata_dev_desc[dev].lba = (u32)n_sectors;
826
827 #ifdef CONFIG_LBA48
828 /* Check if support LBA48 */
829 if (ata_id_has_lba48(id)) {
830 sata->lba48 = 1;
831 debug("Device support LBA48\n\r");
832 } else
833 debug("Device supports LBA28\n\r");
834 #endif
835
836 /* Get the NCQ queue depth from device */
837 sata->queue_depth = ata_id_queue_depth(id);
838
839 /* Get the xfer mode from device */
840 fsl_sata_xfer_mode(dev, id);
841
842 /* Get the write cache status from device */
843 fsl_sata_init_wcache(dev, id);
844
845 /* Set the xfer mode to highest speed */
846 fsl_sata_set_features(dev);
847 #ifdef DEBUG
848 fsl_sata_identify(dev, id);
849 ata_dump_id(id);
850 #endif
851 free((void *)id);
852 return 0;
853 }
"Das U-Boot" Source Tree