efi_loader: move udevice pointer into struct efi_object
[platform/kernel/u-boot.git] / drivers / ata / fsl_sata.c
1 // SPDX-License-Identifier: GPL-2.0+
2 /*
3  * Copyright (C) 2008,2010 Freescale Semiconductor, Inc.
4  * Copyright 2019 NXP
5  * Author: Dave Liu <daveliu@freescale.com>
6  */
7
8 #include <common.h>
9 #include <ahci.h>
10 #include <blk.h>
11 #include <command.h>
12 #include <console.h>
13 #include <cpu_func.h>
14 #include <dm.h>
15 #include <dm/device-internal.h>
16 #include <log.h>
17 #include <asm/io.h>
18 #include <asm/processor.h>
19 #include <asm/fsl_serdes.h>
20 #include <malloc.h>
21 #include <libata.h>
22 #include <fis.h>
23 #include <sata.h>
24 #include <linux/delay.h>
25 #include "fsl_sata.h"
26
27 static inline void sdelay(unsigned long sec)
28 {
29         unsigned long i;
30         for (i = 0; i < sec; i++)
31                 mdelay(1000);
32 }
33
34 static void fsl_sata_dump_sfis(struct sata_fis_d2h *s)
35 {
36         printf("Status FIS dump:\n\r");
37         printf("fis_type:               %02x\n\r", s->fis_type);
38         printf("pm_port_i:              %02x\n\r", s->pm_port_i);
39         printf("status:                 %02x\n\r", s->status);
40         printf("error:                  %02x\n\r", s->error);
41         printf("lba_low:                %02x\n\r", s->lba_low);
42         printf("lba_mid:                %02x\n\r", s->lba_mid);
43         printf("lba_high:               %02x\n\r", s->lba_high);
44         printf("device:                 %02x\n\r", s->device);
45         printf("lba_low_exp:            %02x\n\r", s->lba_low_exp);
46         printf("lba_mid_exp:            %02x\n\r", s->lba_mid_exp);
47         printf("lba_high_exp:           %02x\n\r", s->lba_high_exp);
48         printf("res1:                   %02x\n\r", s->res1);
49         printf("sector_count:           %02x\n\r", s->sector_count);
50         printf("sector_count_exp:       %02x\n\r", s->sector_count_exp);
51 }
52
53 static int ata_wait_register(unsigned __iomem *addr, u32 mask,
54                          u32 val, u32 timeout_msec)
55 {
56         int i;
57         u32 temp;
58
59         for (i = 0; (((temp = in_le32(addr)) & mask) != val)
60                          && i < timeout_msec; i++)
61                 mdelay(1);
62         return (i < timeout_msec) ? 0 : -1;
63 }
64
65 static int init_sata(struct fsl_ata_priv *priv, int dev)
66 {
67         u32 length, align;
68         cmd_hdr_tbl_t *cmd_hdr;
69         u32 cda;
70         u32 val32;
71         fsl_sata_reg_t __iomem *reg;
72         u32 sig;
73         int i;
74         fsl_sata_t *sata;
75
76         if (dev < 0 || dev > (CONFIG_SYS_SATA_MAX_DEVICE - 1)) {
77                 printf("the sata index %d is out of ranges\n\r", dev);
78                 return -1;
79         }
80
81 #ifdef CONFIG_MPC85xx
82         if ((dev == 0) && (!is_serdes_configured(SATA1))) {
83                 printf("SATA%d [dev = %d] is not enabled\n", dev+1, dev);
84                 return -1;
85         }
86         if ((dev == 1) && (!is_serdes_configured(SATA2))) {
87                 printf("SATA%d [dev = %d] is not enabled\n", dev+1, dev);
88                 return -1;
89         }
90 #endif
91
92         /* Allocate SATA device driver struct */
93         sata = (fsl_sata_t *)malloc(sizeof(fsl_sata_t));
94         if (!sata) {
95                 printf("alloc the sata device struct failed\n\r");
96                 return -1;
97         }
98         /* Zero all of the device driver struct */
99         memset((void *)sata, 0, sizeof(fsl_sata_t));
100
101         snprintf(sata->name, 12, "SATA%d:", dev);
102
103         /* Set the controller register base address to device struct */
104         reg = (fsl_sata_reg_t *)(priv->base + priv->offset * dev);
105         sata->dma_flag = priv->flag;
106         priv->fsl_sata = sata;
107         sata->reg_base = reg;
108
109         /* Allocate the command header table, 4 bytes aligned */
110         length = sizeof(struct cmd_hdr_tbl);
111         align = SATA_HC_CMD_HDR_TBL_ALIGN;
112         sata->cmd_hdr_tbl_offset = (void *)malloc(length + align);
113         if (!sata->cmd_hdr_tbl_offset) {
114                 printf("alloc the command header failed\n\r");
115                 return -1;
116         }
117
118         cmd_hdr = (cmd_hdr_tbl_t *)(((u32)sata->cmd_hdr_tbl_offset + align)
119                                                 & ~(align - 1));
120         sata->cmd_hdr = cmd_hdr;
121
122         /* Zero all of the command header table */
123         memset((void *)sata->cmd_hdr_tbl_offset, 0, length + align);
124
125         /* Allocate command descriptor for all command */
126         length = sizeof(struct cmd_desc) * SATA_HC_MAX_CMD;
127         align = SATA_HC_CMD_DESC_ALIGN;
128         sata->cmd_desc_offset = (void *)malloc(length + align);
129         if (!sata->cmd_desc_offset) {
130                 printf("alloc the command descriptor failed\n\r");
131                 return -1;
132         }
133         sata->cmd_desc = (cmd_desc_t *)(((u32)sata->cmd_desc_offset + align)
134                                                 & ~(align - 1));
135         /* Zero all of command descriptor */
136         memset((void *)sata->cmd_desc_offset, 0, length + align);
137
138         /* Link the command descriptor to command header */
139         for (i = 0; i < SATA_HC_MAX_CMD; i++) {
140                 cda = ((u32)sata->cmd_desc + SATA_HC_CMD_DESC_SIZE * i)
141                                          & ~(CMD_HDR_CDA_ALIGN - 1);
142                 cmd_hdr->cmd_slot[i].cda = cpu_to_le32(cda);
143         }
144
145         /* To have safe state, force the controller offline */
146         val32 = in_le32(&reg->hcontrol);
147         val32 &= ~HCONTROL_ONOFF;
148         val32 |= HCONTROL_FORCE_OFFLINE;
149         out_le32(&reg->hcontrol, val32);
150
151         /* Wait the controller offline */
152         ata_wait_register(&reg->hstatus, HSTATUS_ONOFF, 0, 1000);
153
154         /* Set the command header base address to CHBA register to tell DMA */
155         out_le32(&reg->chba, (u32)cmd_hdr & ~0x3);
156
157         /* Snoop for the command header */
158         val32 = in_le32(&reg->hcontrol);
159         val32 |= HCONTROL_HDR_SNOOP;
160         out_le32(&reg->hcontrol, val32);
161
162         /* Disable all of interrupts */
163         val32 = in_le32(&reg->hcontrol);
164         val32 &= ~HCONTROL_INT_EN_ALL;
165         out_le32(&reg->hcontrol, val32);
166
167         /* Clear all of interrupts */
168         val32 = in_le32(&reg->hstatus);
169         out_le32(&reg->hstatus, val32);
170
171         /* Set the ICC, no interrupt coalescing */
172         out_le32(&reg->icc, 0x01000000);
173
174         /* No PM attatched, the SATA device direct connect */
175         out_le32(&reg->cqpmp, 0);
176
177         /* Clear SError register */
178         val32 = in_le32(&reg->serror);
179         out_le32(&reg->serror, val32);
180
181         /* Clear CER register */
182         val32 = in_le32(&reg->cer);
183         out_le32(&reg->cer, val32);
184
185         /* Clear DER register */
186         val32 = in_le32(&reg->der);
187         out_le32(&reg->der, val32);
188
189         /* No device detection or initialization action requested */
190         out_le32(&reg->scontrol, 0x00000300);
191
192         /* Configure the transport layer, default value */
193         out_le32(&reg->transcfg, 0x08000016);
194
195         /* Configure the link layer, default value */
196         out_le32(&reg->linkcfg, 0x0000ff34);
197
198         /* Bring the controller online */
199         val32 = in_le32(&reg->hcontrol);
200         val32 |= HCONTROL_ONOFF;
201         out_le32(&reg->hcontrol, val32);
202
203         mdelay(100);
204
205         /* print sata device name */
206         printf("%s ", sata->name);
207
208         /* Wait PHY RDY signal changed for 500ms */
209         ata_wait_register(&reg->hstatus, HSTATUS_PHY_RDY,
210                           HSTATUS_PHY_RDY, 500);
211
212         /* Check PHYRDY */
213         val32 = in_le32(&reg->hstatus);
214         if (val32 & HSTATUS_PHY_RDY) {
215                 sata->link = 1;
216         } else {
217                 sata->link = 0;
218                 printf("(No RDY)\n\r");
219                 return -1;
220         }
221
222         /* Wait for signature updated, which is 1st D2H */
223         ata_wait_register(&reg->hstatus, HSTATUS_SIGNATURE,
224                           HSTATUS_SIGNATURE, 10000);
225
226         if (val32 & HSTATUS_SIGNATURE) {
227                 sig = in_le32(&reg->sig);
228                 debug("Signature updated, the sig =%08x\n\r", sig);
229                 sata->ata_device_type = ata_dev_classify(sig);
230         }
231
232         /* Check the speed */
233         val32 = in_le32(&reg->sstatus);
234         if ((val32 & SSTATUS_SPD_MASK) == SSTATUS_SPD_GEN1)
235                 printf("(1.5 Gbps)\n\r");
236         else if ((val32 & SSTATUS_SPD_MASK) == SSTATUS_SPD_GEN2)
237                 printf("(3 Gbps)\n\r");
238
239         return 0;
240 }
241
242 int reset_sata(int dev)
243 {
244         return 0;
245 }
246
247 static void fsl_sata_dump_regs(fsl_sata_reg_t __iomem *reg)
248 {
249         printf("\n\rSATA:           %08x\n\r", (u32)reg);
250         printf("CQR:            %08x\n\r", in_le32(&reg->cqr));
251         printf("CAR:            %08x\n\r", in_le32(&reg->car));
252         printf("CCR:            %08x\n\r", in_le32(&reg->ccr));
253         printf("CER:            %08x\n\r", in_le32(&reg->cer));
254         printf("CQR:            %08x\n\r", in_le32(&reg->cqr));
255         printf("DER:            %08x\n\r", in_le32(&reg->der));
256         printf("CHBA:           %08x\n\r", in_le32(&reg->chba));
257         printf("HStatus:        %08x\n\r", in_le32(&reg->hstatus));
258         printf("HControl:       %08x\n\r", in_le32(&reg->hcontrol));
259         printf("CQPMP:          %08x\n\r", in_le32(&reg->cqpmp));
260         printf("SIG:            %08x\n\r", in_le32(&reg->sig));
261         printf("ICC:            %08x\n\r", in_le32(&reg->icc));
262         printf("SStatus:        %08x\n\r", in_le32(&reg->sstatus));
263         printf("SError:         %08x\n\r", in_le32(&reg->serror));
264         printf("SControl:       %08x\n\r", in_le32(&reg->scontrol));
265         printf("SNotification:  %08x\n\r", in_le32(&reg->snotification));
266         printf("TransCfg:       %08x\n\r", in_le32(&reg->transcfg));
267         printf("TransStatus:    %08x\n\r", in_le32(&reg->transstatus));
268         printf("LinkCfg:        %08x\n\r", in_le32(&reg->linkcfg));
269         printf("LinkCfg1:       %08x\n\r", in_le32(&reg->linkcfg1));
270         printf("LinkCfg2:       %08x\n\r", in_le32(&reg->linkcfg2));
271         printf("LinkStatus:     %08x\n\r", in_le32(&reg->linkstatus));
272         printf("LinkStatus1:    %08x\n\r", in_le32(&reg->linkstatus1));
273         printf("PhyCtrlCfg:     %08x\n\r", in_le32(&reg->phyctrlcfg));
274         printf("SYSPR:          %08x\n\r", in_be32(&reg->syspr));
275 }
276
277 static int fsl_ata_exec_ata_cmd(struct fsl_sata *sata, struct sata_fis_h2d *cfis,
278                                 int is_ncq, int tag, u8 *buffer, u32 len)
279 {
280         cmd_hdr_entry_t *cmd_hdr;
281         cmd_desc_t *cmd_desc;
282         sata_fis_h2d_t *h2d;
283         prd_entry_t *prde;
284         u32 ext_c_ddc;
285         u32 prde_count;
286         u32 val32;
287         u32 ttl;
288         fsl_sata_reg_t __iomem *reg = sata->reg_base;
289         int i;
290
291         /* Check xfer length */
292         if (len > SATA_HC_MAX_XFER_LEN) {
293                 printf("max transfer length is 64MB\n\r");
294                 return 0;
295         }
296
297         /* Setup the command descriptor */
298         cmd_desc = sata->cmd_desc + tag;
299
300         /* Get the pointer cfis of command descriptor */
301         h2d = (sata_fis_h2d_t *)cmd_desc->cfis;
302
303         /* Zero the cfis of command descriptor */
304         memset((void *)h2d, 0, SATA_HC_CMD_DESC_CFIS_SIZE);
305
306         /* Copy the cfis from user to command descriptor */
307         h2d->fis_type = cfis->fis_type;
308         h2d->pm_port_c = cfis->pm_port_c;
309         h2d->command = cfis->command;
310
311         h2d->features = cfis->features;
312         h2d->features_exp = cfis->features_exp;
313
314         h2d->lba_low = cfis->lba_low;
315         h2d->lba_mid = cfis->lba_mid;
316         h2d->lba_high = cfis->lba_high;
317         h2d->lba_low_exp = cfis->lba_low_exp;
318         h2d->lba_mid_exp = cfis->lba_mid_exp;
319         h2d->lba_high_exp = cfis->lba_high_exp;
320
321         if (!is_ncq) {
322                 h2d->sector_count = cfis->sector_count;
323                 h2d->sector_count_exp = cfis->sector_count_exp;
324         } else { /* NCQ */
325                 h2d->sector_count = (u8)(tag << 3);
326         }
327
328         h2d->device = cfis->device;
329         h2d->control = cfis->control;
330
331         /* Setup the PRD table */
332         prde = (prd_entry_t *)cmd_desc->prdt;
333         memset((void *)prde, 0, sizeof(struct prdt));
334
335         prde_count = 0;
336         ttl = len;
337         for (i = 0; i < SATA_HC_MAX_PRD_DIRECT; i++) {
338                 if (!len)
339                         break;
340                 prde->dba = cpu_to_le32((u32)buffer & ~0x3);
341                 debug("dba = %08x\n\r", (u32)buffer);
342
343                 if (len < PRD_ENTRY_MAX_XFER_SZ) {
344                         ext_c_ddc = PRD_ENTRY_DATA_SNOOP | len;
345                         debug("ext_c_ddc1 = %08x, len = %08x\n\r", ext_c_ddc, len);
346                         prde->ext_c_ddc = cpu_to_le32(ext_c_ddc);
347                         prde_count++;
348                         prde++;
349                         break;
350                 } else {
351                         ext_c_ddc = PRD_ENTRY_DATA_SNOOP; /* 4M bytes */
352                         debug("ext_c_ddc2 = %08x, len = %08x\n\r", ext_c_ddc, len);
353                         prde->ext_c_ddc = cpu_to_le32(ext_c_ddc);
354                         buffer += PRD_ENTRY_MAX_XFER_SZ;
355                         len -= PRD_ENTRY_MAX_XFER_SZ;
356                         prde_count++;
357                         prde++;
358                 }
359         }
360
361         /* Setup the command slot of cmd hdr */
362         cmd_hdr = (cmd_hdr_entry_t *)&sata->cmd_hdr->cmd_slot[tag];
363
364         cmd_hdr->cda = cpu_to_le32((u32)cmd_desc & ~0x3);
365
366         val32 = prde_count << CMD_HDR_PRD_ENTRY_SHIFT;
367         val32 |= sizeof(sata_fis_h2d_t);
368         cmd_hdr->prde_fis_len = cpu_to_le32(val32);
369
370         cmd_hdr->ttl = cpu_to_le32(ttl);
371
372         if (!is_ncq) {
373                 val32 = CMD_HDR_ATTR_RES | CMD_HDR_ATTR_SNOOP;
374         } else {
375                 val32 = CMD_HDR_ATTR_RES | CMD_HDR_ATTR_SNOOP | CMD_HDR_ATTR_FPDMA;
376         }
377
378         tag &= CMD_HDR_ATTR_TAG;
379         val32 |= tag;
380
381         debug("attribute = %08x\n\r", val32);
382         cmd_hdr->attribute = cpu_to_le32(val32);
383
384         /* Make sure cmd desc and cmd slot valid before command issue */
385         sync();
386
387         /* PMP*/
388         val32 = (u32)(h2d->pm_port_c & 0x0f);
389         out_le32(&reg->cqpmp, val32);
390
391         /* Wait no active */
392         if (ata_wait_register(&reg->car, (1 << tag), 0, 10000))
393                 printf("Wait no active time out\n\r");
394
395         /* Issue command */
396         if (!(in_le32(&reg->cqr) & (1 << tag))) {
397                 val32 = 1 << tag;
398                 out_le32(&reg->cqr, val32);
399         }
400
401         /* Wait command completed for 10s */
402         if (ata_wait_register(&reg->ccr, (1 << tag), (1 << tag), 10000)) {
403                 if (!is_ncq)
404                         printf("Non-NCQ command time out\n\r");
405                 else
406                         printf("NCQ command time out\n\r");
407         }
408
409         val32 = in_le32(&reg->cer);
410
411         if (val32) {
412                 u32 der;
413                 fsl_sata_dump_sfis((struct sata_fis_d2h *)cmd_desc->sfis);
414                 printf("CE at device\n\r");
415                 fsl_sata_dump_regs(reg);
416                 der = in_le32(&reg->der);
417                 out_le32(&reg->cer, val32);
418                 out_le32(&reg->der, der);
419         }
420
421         /* Clear complete flags */
422         val32 = in_le32(&reg->ccr);
423         out_le32(&reg->ccr, val32);
424
425         return len;
426 }
427
428 static int fsl_ata_exec_reset_cmd(struct fsl_sata *sata, struct sata_fis_h2d *cfis,
429                                  int tag, u8 *buffer, u32 len)
430 {
431         return 0;
432 }
433
434 static int fsl_sata_exec_cmd(struct fsl_sata *sata, struct sata_fis_h2d *cfis,
435                  enum cmd_type command_type, int tag, u8 *buffer, u32 len)
436 {
437         int rc;
438
439         if (tag > SATA_HC_MAX_CMD || tag < 0) {
440                 printf("tag is out of range, tag=%d\n\r", tag);
441                 return -1;
442         }
443
444         switch (command_type) {
445         case CMD_ATA:
446                 rc = fsl_ata_exec_ata_cmd(sata, cfis, 0, tag, buffer, len);
447                 return rc;
448         case CMD_RESET:
449                 rc = fsl_ata_exec_reset_cmd(sata, cfis, tag, buffer, len);
450                 return rc;
451         case CMD_NCQ:
452                 rc = fsl_ata_exec_ata_cmd(sata, cfis, 1, tag, buffer, len);
453                 return rc;
454         case CMD_ATAPI:
455         case CMD_VENDOR_BIST:
456         case CMD_BIST:
457                 printf("not support now\n\r");
458                 return -1;
459         default:
460                 break;
461         }
462
463         return -1;
464 }
465
466 static void fsl_sata_xfer_mode(fsl_sata_t *sata, u16 *id)
467 {
468         sata->pio = id[ATA_ID_PIO_MODES];
469         sata->mwdma = id[ATA_ID_MWDMA_MODES];
470         sata->udma = id[ATA_ID_UDMA_MODES];
471         debug("pio %04x, mwdma %04x, udma %04x\n\r", sata->pio, sata->mwdma, sata->udma);
472 }
473
474 static void fsl_sata_set_features(fsl_sata_t *sata)
475 {
476         struct sata_fis_h2d h2d, *cfis = &h2d;
477         u8 udma_cap;
478
479         memset(cfis, 0, sizeof(struct sata_fis_h2d));
480
481         cfis->fis_type = SATA_FIS_TYPE_REGISTER_H2D;
482         cfis->pm_port_c = 0x80; /* is command */
483         cfis->command = ATA_CMD_SET_FEATURES;
484         cfis->features = SETFEATURES_XFER;
485
486         /* First check the device capablity */
487         udma_cap = (u8)(sata->udma & 0xff);
488         debug("udma_cap %02x\n\r", udma_cap);
489
490         if (udma_cap == ATA_UDMA6)
491                 cfis->sector_count = XFER_UDMA_6;
492         if (udma_cap == ATA_UDMA5)
493                 cfis->sector_count = XFER_UDMA_5;
494         if (udma_cap == ATA_UDMA4)
495                 cfis->sector_count = XFER_UDMA_4;
496         if (udma_cap == ATA_UDMA3)
497                 cfis->sector_count = XFER_UDMA_3;
498
499         fsl_sata_exec_cmd(sata, cfis, CMD_ATA, 0, NULL, 0);
500 }
501
502 static u32 fsl_sata_rw_cmd(fsl_sata_t *sata, u32 start, u32 blkcnt, u8 *buffer,
503                            int is_write)
504 {
505         struct sata_fis_h2d h2d, *cfis = &h2d;
506         u32 block;
507
508         block = start;
509
510         memset(cfis, 0, sizeof(struct sata_fis_h2d));
511
512         cfis->fis_type = SATA_FIS_TYPE_REGISTER_H2D;
513         cfis->pm_port_c = 0x80; /* is command */
514         cfis->command = (is_write) ? ATA_CMD_WRITE : ATA_CMD_READ;
515         cfis->device = ATA_LBA;
516
517         cfis->device |= (block >> 24) & 0xf;
518         cfis->lba_high = (block >> 16) & 0xff;
519         cfis->lba_mid = (block >> 8) & 0xff;
520         cfis->lba_low = block & 0xff;
521         cfis->sector_count = (u8)(blkcnt & 0xff);
522
523         fsl_sata_exec_cmd(sata, cfis, CMD_ATA, 0, buffer, ATA_SECT_SIZE * blkcnt);
524         return blkcnt;
525 }
526
527 static void fsl_sata_flush_cache(fsl_sata_t *sata)
528 {
529         struct sata_fis_h2d h2d, *cfis = &h2d;
530
531         memset(cfis, 0, sizeof(struct sata_fis_h2d));
532
533         cfis->fis_type = SATA_FIS_TYPE_REGISTER_H2D;
534         cfis->pm_port_c = 0x80; /* is command */
535         cfis->command = ATA_CMD_FLUSH;
536
537         fsl_sata_exec_cmd(sata, cfis, CMD_ATA, 0, NULL, 0);
538 }
539
540 static u32 fsl_sata_rw_cmd_ext(fsl_sata_t *sata, u32 start, u32 blkcnt,
541                                u8 *buffer, int is_write)
542 {
543         struct sata_fis_h2d h2d, *cfis = &h2d;
544         u64 block;
545
546         block = (u64)start;
547
548         memset(cfis, 0, sizeof(struct sata_fis_h2d));
549
550         cfis->fis_type = SATA_FIS_TYPE_REGISTER_H2D;
551         cfis->pm_port_c = 0x80; /* is command */
552
553         cfis->command = (is_write) ? ATA_CMD_WRITE_EXT
554                                  : ATA_CMD_READ_EXT;
555
556         cfis->lba_high_exp = (block >> 40) & 0xff;
557         cfis->lba_mid_exp = (block >> 32) & 0xff;
558         cfis->lba_low_exp = (block >> 24) & 0xff;
559         cfis->lba_high = (block >> 16) & 0xff;
560         cfis->lba_mid = (block >> 8) & 0xff;
561         cfis->lba_low = block & 0xff;
562         cfis->device = ATA_LBA;
563         cfis->sector_count_exp = (blkcnt >> 8) & 0xff;
564         cfis->sector_count = blkcnt & 0xff;
565
566         fsl_sata_exec_cmd(sata, cfis, CMD_ATA, 0, buffer, ATA_SECT_SIZE * blkcnt);
567         return blkcnt;
568 }
569
570 static u32 fsl_sata_rw_ncq_cmd(fsl_sata_t *sata, u32 start, u32 blkcnt,
571                                u8 *buffer, int is_write)
572 {
573         struct sata_fis_h2d h2d, *cfis = &h2d;
574         int ncq_channel;
575         u64 block;
576
577         if (sata->lba48 != 1) {
578                 printf("execute FPDMA command on non-LBA48 hard disk\n\r");
579                 return -1;
580         }
581
582         block = (u64)start;
583
584         memset(cfis, 0, sizeof(struct sata_fis_h2d));
585
586         cfis->fis_type = SATA_FIS_TYPE_REGISTER_H2D;
587         cfis->pm_port_c = 0x80; /* is command */
588
589         cfis->command = (is_write) ? ATA_CMD_FPDMA_WRITE
590                                  : ATA_CMD_FPDMA_READ;
591
592         cfis->lba_high_exp = (block >> 40) & 0xff;
593         cfis->lba_mid_exp = (block >> 32) & 0xff;
594         cfis->lba_low_exp = (block >> 24) & 0xff;
595         cfis->lba_high = (block >> 16) & 0xff;
596         cfis->lba_mid = (block >> 8) & 0xff;
597         cfis->lba_low = block & 0xff;
598
599         cfis->device = ATA_LBA;
600         cfis->features_exp = (blkcnt >> 8) & 0xff;
601         cfis->features = blkcnt & 0xff;
602
603         if (sata->queue_depth >= SATA_HC_MAX_CMD)
604                 ncq_channel = SATA_HC_MAX_CMD - 1;
605         else
606                 ncq_channel = sata->queue_depth - 1;
607
608         /* Use the latest queue */
609         fsl_sata_exec_cmd(sata, cfis, CMD_NCQ, ncq_channel, buffer, ATA_SECT_SIZE * blkcnt);
610         return blkcnt;
611 }
612
613 static void fsl_sata_flush_cache_ext(fsl_sata_t *sata)
614 {
615         struct sata_fis_h2d h2d, *cfis = &h2d;
616
617         memset(cfis, 0, sizeof(struct sata_fis_h2d));
618
619         cfis->fis_type = SATA_FIS_TYPE_REGISTER_H2D;
620         cfis->pm_port_c = 0x80; /* is command */
621         cfis->command = ATA_CMD_FLUSH_EXT;
622
623         fsl_sata_exec_cmd(sata, cfis, CMD_ATA, 0, NULL, 0);
624 }
625
626 static void fsl_sata_init_wcache(fsl_sata_t *sata, u16 *id)
627 {
628         if (ata_id_has_wcache(id) && ata_id_wcache_enabled(id))
629                 sata->wcache = 1;
630         if (ata_id_has_flush(id))
631                 sata->flush = 1;
632         if (ata_id_has_flush_ext(id))
633                 sata->flush_ext = 1;
634 }
635
636 static u32 ata_low_level_rw_lba48(fsl_sata_t *sata, u32 blknr, lbaint_t blkcnt,
637                                   const void *buffer, int is_write)
638 {
639         u32 start, blks;
640         u8 *addr;
641         int max_blks;
642
643         start = blknr;
644         blks = blkcnt;
645         addr = (u8 *)buffer;
646
647         max_blks = ATA_MAX_SECTORS_LBA48;
648         do {
649                 if (blks > max_blks) {
650                         if (sata->dma_flag != FLAGS_FPDMA)
651                                 fsl_sata_rw_cmd_ext(sata, start, max_blks, addr,
652                                                     is_write);
653                         else
654                                 fsl_sata_rw_ncq_cmd(sata, start, max_blks, addr,
655                                                     is_write);
656                         start += max_blks;
657                         blks -= max_blks;
658                         addr += ATA_SECT_SIZE * max_blks;
659                 } else {
660                         if (sata->dma_flag != FLAGS_FPDMA)
661                                 fsl_sata_rw_cmd_ext(sata, start, blks, addr,
662                                                     is_write);
663                         else
664                                 fsl_sata_rw_ncq_cmd(sata, start, blks, addr,
665                                                     is_write);
666                         start += blks;
667                         blks = 0;
668                         addr += ATA_SECT_SIZE * blks;
669                 }
670         } while (blks != 0);
671
672         return blkcnt;
673 }
674
675 static u32 ata_low_level_rw_lba28(fsl_sata_t *sata, u32 blknr, u32 blkcnt,
676                                   const void *buffer, int is_write)
677 {
678         u32 start, blks;
679         u8 *addr;
680         int max_blks;
681
682         start = blknr;
683         blks = blkcnt;
684         addr = (u8 *)buffer;
685
686         max_blks = ATA_MAX_SECTORS;
687         do {
688                 if (blks > max_blks) {
689                         fsl_sata_rw_cmd(sata, start, max_blks, addr, is_write);
690                         start += max_blks;
691                         blks -= max_blks;
692                         addr += ATA_SECT_SIZE * max_blks;
693                 } else {
694                         fsl_sata_rw_cmd(sata, start, blks, addr, is_write);
695                         start += blks;
696                         blks = 0;
697                         addr += ATA_SECT_SIZE * blks;
698                 }
699         } while (blks != 0);
700
701         return blkcnt;
702 }
703
704 /*
705  * SATA interface between low level driver and command layer
706  */
707 static ulong sata_read(struct udevice *dev, lbaint_t blknr, lbaint_t blkcnt,
708                        void *buffer)
709 {
710         struct fsl_ata_priv *priv = dev_get_plat(dev);
711         fsl_sata_t *sata = priv->fsl_sata;
712         u32 rc;
713
714         if (sata->lba48)
715                 rc = ata_low_level_rw_lba48(sata, blknr, blkcnt, buffer,
716                                             READ_CMD);
717         else
718                 rc = ata_low_level_rw_lba28(sata, blknr, blkcnt, buffer,
719                                             READ_CMD);
720         return rc;
721 }
722
723 static ulong sata_write(struct udevice *dev, lbaint_t blknr, lbaint_t blkcnt,
724                         const void *buffer)
725 {
726         struct fsl_ata_priv *priv = dev_get_plat(dev);
727         fsl_sata_t *sata = priv->fsl_sata;
728         u32 rc;
729
730         if (sata->lba48) {
731                 rc = ata_low_level_rw_lba48(sata, blknr, blkcnt, buffer,
732                                             WRITE_CMD);
733                 if (sata->wcache && sata->flush_ext)
734                         fsl_sata_flush_cache_ext(sata);
735         } else {
736                 rc = ata_low_level_rw_lba28(sata, blknr, blkcnt, buffer,
737                                             WRITE_CMD);
738                 if (sata->wcache && sata->flush)
739                         fsl_sata_flush_cache(sata);
740         }
741         return rc;
742 }
743
744 static void fsl_sata_identify(fsl_sata_t *sata, u16 *id)
745 {
746         struct sata_fis_h2d h2d, *cfis = &h2d;
747
748         memset(cfis, 0, sizeof(struct sata_fis_h2d));
749
750         cfis->fis_type = SATA_FIS_TYPE_REGISTER_H2D;
751         cfis->pm_port_c = 0x80; /* is command */
752         cfis->command = ATA_CMD_ID_ATA;
753
754         fsl_sata_exec_cmd(sata, cfis, CMD_ATA, 0, (u8 *)id, ATA_ID_WORDS * 2);
755         ata_swap_buf_le16(id, ATA_ID_WORDS);
756 }
757
758 static int scan_sata(struct udevice *dev)
759 {
760         struct blk_desc *desc = dev_get_uclass_plat(dev);
761         struct fsl_ata_priv *priv = dev_get_plat(dev);
762         fsl_sata_t *sata = priv->fsl_sata;
763
764         unsigned char serial[ATA_ID_SERNO_LEN + 1];
765         unsigned char firmware[ATA_ID_FW_REV_LEN + 1];
766         unsigned char product[ATA_ID_PROD_LEN + 1];
767         u16 *id;
768         u64 n_sectors;
769
770         /* if no detected link */
771         if (!sata->link)
772                 return -1;
773
774         id = (u16 *)malloc(ATA_ID_WORDS * 2);
775         if (!id) {
776                 printf("id malloc failed\n\r");
777                 return -1;
778         }
779
780         /* Identify device to get information */
781         fsl_sata_identify(sata, id);
782
783         /* Serial number */
784         ata_id_c_string(id, serial, ATA_ID_SERNO, sizeof(serial));
785
786         /* Firmware version */
787         ata_id_c_string(id, firmware, ATA_ID_FW_REV, sizeof(firmware));
788
789         /* Product model */
790         ata_id_c_string(id, product, ATA_ID_PROD, sizeof(product));
791
792         /* Totoal sectors */
793         n_sectors = ata_id_n_sectors(id);
794
795 #ifdef CONFIG_LBA48
796         /* Check if support LBA48 */
797         if (ata_id_has_lba48(id)) {
798                 sata->lba48 = 1;
799                 debug("Device support LBA48\n\r");
800         } else
801                 debug("Device supports LBA28\n\r");
802 #endif
803
804         memcpy(desc->product, serial, sizeof(serial));
805         memcpy(desc->revision, firmware, sizeof(firmware));
806         memcpy(desc->vendor, product, sizeof(product));
807         desc->lba = n_sectors;
808 #ifdef CONFIG_LBA48
809         desc->lba48 = sata->lba48;
810 #endif
811
812         /* Get the NCQ queue depth from device */
813         sata->queue_depth = ata_id_queue_depth(id);
814
815         /* Get the xfer mode from device */
816         fsl_sata_xfer_mode(sata, id);
817
818         /* Get the write cache status from device */
819         fsl_sata_init_wcache(sata, id);
820
821         /* Set the xfer mode to highest speed */
822         fsl_sata_set_features(sata);
823
824 #ifdef DEBUG
825         ata_dump_id(id);
826 #endif
827         free((void *)id);
828         return 0;
829 }
830
831 static const struct blk_ops sata_fsl_blk_ops = {
832         .read   = sata_read,
833         .write  = sata_write,
834 };
835
836 U_BOOT_DRIVER(sata_fsl_driver) = {
837         .name = "sata_fsl_blk",
838         .id = UCLASS_BLK,
839         .ops = &sata_fsl_blk_ops,
840         .plat_auto      = sizeof(struct fsl_ata_priv),
841 };
842
843 static int fsl_ata_of_to_plat(struct udevice *dev)
844 {
845         struct fsl_ata_priv *priv = dev_get_priv(dev);
846
847         priv->number = dev_read_u32_default(dev, "sata-number", -1);
848         priv->flag = dev_read_u32_default(dev, "sata-fpdma", -1);
849         priv->offset = dev_read_u32_default(dev, "sata-offset", -1);
850
851         priv->base = dev_read_addr(dev);
852         if (priv->base == FDT_ADDR_T_NONE)
853                 return -EINVAL;
854
855         return 0;
856 }
857
858 static int fsl_unbind_device(struct udevice *dev)
859 {
860         int ret;
861
862         ret = device_remove(dev, DM_REMOVE_NORMAL);
863         if (ret)
864                 return ret;
865
866         ret = device_unbind(dev);
867         if (ret)
868                 return ret;
869
870         return 0;
871 }
872
873 static int fsl_ata_probe(struct udevice *dev)
874 {
875         struct fsl_ata_priv *blk_priv, *priv;
876         struct udevice *blk;
877         int failed_number;
878         char sata_name[10];
879         int nr_ports;
880         int ret;
881         int i;
882
883         failed_number = 0;
884         priv = dev_get_priv(dev);
885         nr_ports = priv->number;
886         nr_ports = min(nr_ports, CONFIG_SYS_SATA_MAX_DEVICE);
887
888         for (i = 0; i < nr_ports; i++) {
889                 snprintf(sata_name, sizeof(sata_name), "fsl_sata%d", i);
890                 ret = blk_create_devicef(dev, "sata_fsl_blk", sata_name,
891                                          IF_TYPE_SATA, -1, 512, 0, &blk);
892                 if (ret) {
893                         debug("Can't create device\n");
894                         return ret;
895                 }
896
897                 /* Init SATA port */
898                 ret = init_sata(priv, i);
899                 if (ret) {
900                         debug("%s: Failed to init sata\n", __func__);
901                         ret = fsl_unbind_device(blk);
902                         if (ret)
903                                 return ret;
904
905                         failed_number++;
906                         continue;
907                 }
908
909                 blk_priv = dev_get_plat(blk);
910                 blk_priv->fsl_sata = priv->fsl_sata;
911                 /* Scan SATA port */
912                 ret = scan_sata(blk);
913                 if (ret) {
914                         debug("%s: Failed to scan bus\n", __func__);
915                         ret = fsl_unbind_device(blk);
916                         if (ret)
917                                 return ret;
918
919                         failed_number++;
920                         continue;
921                 }
922
923                 ret = device_probe(dev);
924                 if (ret < 0) {
925                         debug("Probing %s failed (%d)\n", dev->name, ret);
926                         ret = fsl_unbind_device(blk);
927                         if (ret)
928                                 return ret;
929
930                         failed_number++;
931                         continue;
932                 }
933         }
934
935         if (failed_number == nr_ports)
936                 return -ENODEV;
937         else
938                 return 0;
939 }
940
941 static int fsl_ata_remove(struct udevice *dev)
942 {
943         fsl_sata_t *sata;
944         struct fsl_ata_priv *priv;
945
946         priv = dev_get_priv(dev);
947         sata = priv->fsl_sata;
948
949         free(sata->cmd_hdr_tbl_offset);
950         free(sata->cmd_desc_offset);
951         free(sata);
952
953         return 0;
954 }
955
956 static int sata_fsl_scan(struct udevice *dev)
957 {
958         /* Nothing to do here */
959
960         return 0;
961 }
962
963 struct ahci_ops sata_fsl_ahci_ops = {
964         .scan = sata_fsl_scan,
965 };
966
967 static const struct udevice_id fsl_ata_ids[] = {
968         { .compatible = "fsl,pq-sata-v2" },
969         { }
970 };
971
972 U_BOOT_DRIVER(fsl_ahci) = {
973         .name   = "fsl_ahci",
974         .id = UCLASS_AHCI,
975         .of_match = fsl_ata_ids,
976         .ops = &sata_fsl_ahci_ops,
977         .of_to_plat = fsl_ata_of_to_plat,
978         .probe  = fsl_ata_probe,
979         .remove = fsl_ata_remove,
980         .priv_auto      = sizeof(struct fsl_ata_priv),
981 };