2 * Copyright (C) 2010-2011 Freescale Semiconductor, Inc.
3 * Terry Lv <r65388@freescale.com>
5 * See file CREDITS for list of people who contributed to this
8 * This program is free software; you can redistribute it and/or
9 * modify it under the terms of the GNU General Public License as
10 * published by the Free Software Foundation; either version 2 of
11 * the License, or (at your option) any later version.
13 * This program is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 * GNU General Public License for more details.
18 * You should have received a copy of the GNU General Public License
19 * along with this program; if not, write to the Free Software
31 #include <linux/ctype.h>
32 #include <asm/errno.h>
34 #include <linux/bitops.h>
35 #include <asm/arch/clock.h>
36 #include "dwc_ahsata.h"
38 struct sata_port_regs
{
62 struct sata_host_regs
{
91 #define MAX_DATA_BYTES_PER_SG (4 * 1024 * 1024)
92 #define MAX_BYTES_PER_TRANS (AHCI_MAX_SG * MAX_DATA_BYTES_PER_SG)
94 #define writel_with_flush(a, b) do { writel(a, b); readl(b); } while (0)
98 static inline u32
ahci_port_base(u32 base
, u32 port
)
100 return base
+ 0x100 + (port
* 0x80);
103 static int waiting_for_cmd_completed(u8
*offset
,
111 ((status
= readl(offset
)) & sign
) && i
< timeout_msec
;
115 return (i
< timeout_msec
) ? 0 : -1;
118 static int ahci_setup_oobr(struct ahci_probe_ent
*probe_ent
,
121 struct sata_host_regs
*host_mmio
=
122 (struct sata_host_regs
*)probe_ent
->mmio_base
;
124 writel(SATA_HOST_OOBR_WE
, &(host_mmio
->oobr
));
125 writel(0x02060b14, &(host_mmio
->oobr
));
130 static int ahci_host_init(struct ahci_probe_ent
*probe_ent
)
132 u32 tmp
, cap_save
, num_ports
;
133 int i
, j
, timeout
= 1000;
134 struct sata_port_regs
*port_mmio
= NULL
;
135 struct sata_host_regs
*host_mmio
=
136 (struct sata_host_regs
*)probe_ent
->mmio_base
;
137 int clk
= mxc_get_clock(MXC_SATA_CLK
);
139 cap_save
= readl(&(host_mmio
->cap
));
140 cap_save
|= SATA_HOST_CAP_SSS
;
142 /* global controller reset */
143 tmp
= readl(&(host_mmio
->ghc
));
144 if ((tmp
& SATA_HOST_GHC_HR
) == 0)
145 writel_with_flush(tmp
| SATA_HOST_GHC_HR
, &(host_mmio
->ghc
));
147 while ((readl(&(host_mmio
->ghc
)) & SATA_HOST_GHC_HR
)
152 debug("controller reset failed (0x%x)\n", tmp
);
157 writel(clk
/ 1000, &(host_mmio
->timer1ms
));
159 ahci_setup_oobr(probe_ent
, 0);
161 writel_with_flush(SATA_HOST_GHC_AE
, &(host_mmio
->ghc
));
162 writel(cap_save
, &(host_mmio
->cap
));
163 num_ports
= (cap_save
& SATA_HOST_CAP_NP_MASK
) + 1;
164 writel_with_flush((1 << num_ports
) - 1,
168 * Determine which Ports are implemented by the DWC_ahsata,
169 * by reading the PI register. This bit map value aids the
170 * software to determine how many Ports are available and
171 * which Port registers need to be initialized.
173 probe_ent
->cap
= readl(&(host_mmio
->cap
));
174 probe_ent
->port_map
= readl(&(host_mmio
->pi
));
176 /* Determine how many command slots the HBA supports */
178 (probe_ent
->cap
& SATA_HOST_CAP_NP_MASK
) + 1;
180 debug("cap 0x%x port_map 0x%x n_ports %d\n",
181 probe_ent
->cap
, probe_ent
->port_map
, probe_ent
->n_ports
);
183 for (i
= 0; i
< probe_ent
->n_ports
; i
++) {
184 probe_ent
->port
[i
].port_mmio
=
185 ahci_port_base((u32
)host_mmio
, i
);
187 (struct sata_port_regs
*)probe_ent
->port
[i
].port_mmio
;
189 /* Ensure that the DWC_ahsata is in idle state */
190 tmp
= readl(&(port_mmio
->cmd
));
193 * When P#CMD.ST, P#CMD.CR, P#CMD.FRE and P#CMD.FR
194 * are all cleared, the Port is in an idle state.
196 if (tmp
& (SATA_PORT_CMD_CR
| SATA_PORT_CMD_FR
|
197 SATA_PORT_CMD_FRE
| SATA_PORT_CMD_ST
)) {
200 * System software places a Port into the idle state by
201 * clearing P#CMD.ST and waiting for P#CMD.CR to return
204 tmp
&= ~SATA_PORT_CMD_ST
;
205 writel_with_flush(tmp
, &(port_mmio
->cmd
));
208 * spec says 500 msecs for each bit, so
209 * this is slightly incorrect.
214 while ((readl(&(port_mmio
->cmd
)) & SATA_PORT_CMD_CR
)
219 debug("port reset failed (0x%x)\n", tmp
);
225 tmp
= readl(&(port_mmio
->cmd
));
226 writel((tmp
| SATA_PORT_CMD_SUD
), &(port_mmio
->cmd
));
228 /* Wait for spin-up to finish */
230 while (!(readl(&(port_mmio
->cmd
)) | SATA_PORT_CMD_SUD
)
234 debug("Spin-Up can't finish!\n");
238 for (j
= 0; j
< 100; ++j
) {
240 tmp
= readl(&(port_mmio
->ssts
));
241 if (((tmp
& SATA_PORT_SSTS_DET_MASK
) == 0x3) ||
242 ((tmp
& SATA_PORT_SSTS_DET_MASK
) == 0x1))
246 /* Wait for COMINIT bit 26 (DIAG_X) in SERR */
248 while (!(readl(&(port_mmio
->serr
)) | SATA_PORT_SERR_DIAG_X
)
252 debug("Can't find DIAG_X set!\n");
257 * For each implemented Port, clear the P#SERR
258 * register, by writing ones to each implemented\
261 tmp
= readl(&(port_mmio
->serr
));
262 debug("P#SERR 0x%x\n",
264 writel(tmp
, &(port_mmio
->serr
));
266 /* Ack any pending irq events for this port */
267 tmp
= readl(&(host_mmio
->is
));
268 debug("IS 0x%x\n", tmp
);
270 writel(tmp
, &(host_mmio
->is
));
272 writel(1 << i
, &(host_mmio
->is
));
274 /* set irq mask (enables interrupts) */
275 writel(DEF_PORT_IRQ
, &(port_mmio
->ie
));
277 /* register linkup ports */
278 tmp
= readl(&(port_mmio
->ssts
));
279 debug("Port %d status: 0x%x\n", i
, tmp
);
280 if ((tmp
& SATA_PORT_SSTS_DET_MASK
) == 0x03)
281 probe_ent
->link_port_map
|= (0x01 << i
);
284 tmp
= readl(&(host_mmio
->ghc
));
285 debug("GHC 0x%x\n", tmp
);
286 writel(tmp
| SATA_HOST_GHC_IE
, &(host_mmio
->ghc
));
287 tmp
= readl(&(host_mmio
->ghc
));
288 debug("GHC 0x%x\n", tmp
);
293 static void ahci_print_info(struct ahci_probe_ent
*probe_ent
)
295 struct sata_host_regs
*host_mmio
=
296 (struct sata_host_regs
*)probe_ent
->mmio_base
;
297 u32 vers
, cap
, impl
, speed
;
301 vers
= readl(&(host_mmio
->vs
));
302 cap
= probe_ent
->cap
;
303 impl
= probe_ent
->port_map
;
305 speed
= (cap
& SATA_HOST_CAP_ISS_MASK
)
306 >> SATA_HOST_CAP_ISS_OFFSET
;
316 printf("AHCI %02x%02x.%02x%02x "
317 "%u slots %u ports %s Gbps 0x%x impl %s mode\n",
322 ((cap
>> 8) & 0x1f) + 1,
331 cap
& (1 << 31) ? "64bit " : "",
332 cap
& (1 << 30) ? "ncq " : "",
333 cap
& (1 << 28) ? "ilck " : "",
334 cap
& (1 << 27) ? "stag " : "",
335 cap
& (1 << 26) ? "pm " : "",
336 cap
& (1 << 25) ? "led " : "",
337 cap
& (1 << 24) ? "clo " : "",
338 cap
& (1 << 19) ? "nz " : "",
339 cap
& (1 << 18) ? "only " : "",
340 cap
& (1 << 17) ? "pmp " : "",
341 cap
& (1 << 15) ? "pio " : "",
342 cap
& (1 << 14) ? "slum " : "",
343 cap
& (1 << 13) ? "part " : "");
346 static int ahci_init_one(int pdev
)
349 struct ahci_probe_ent
*probe_ent
= NULL
;
351 probe_ent
= malloc(sizeof(struct ahci_probe_ent
));
352 memset(probe_ent
, 0, sizeof(struct ahci_probe_ent
));
353 probe_ent
->dev
= pdev
;
355 probe_ent
->host_flags
= ATA_FLAG_SATA
361 probe_ent
->mmio_base
= CONFIG_DWC_AHSATA_BASE_ADDR
;
363 /* initialize adapter */
364 rc
= ahci_host_init(probe_ent
);
368 ahci_print_info(probe_ent
);
370 /* Save the private struct to block device struct */
371 sata_dev_desc
[pdev
].priv
= (void *)probe_ent
;
379 static int ahci_fill_sg(struct ahci_probe_ent
*probe_ent
,
380 u8 port
, unsigned char *buf
, int buf_len
)
382 struct ahci_ioports
*pp
= &(probe_ent
->port
[port
]);
383 struct ahci_sg
*ahci_sg
= pp
->cmd_tbl_sg
;
384 u32 sg_count
, max_bytes
;
387 max_bytes
= MAX_DATA_BYTES_PER_SG
;
388 sg_count
= ((buf_len
- 1) / max_bytes
) + 1;
389 if (sg_count
> AHCI_MAX_SG
) {
390 printf("Error:Too much sg!\n");
394 for (i
= 0; i
< sg_count
; i
++) {
396 cpu_to_le32((u32
)buf
+ i
* max_bytes
);
397 ahci_sg
->addr_hi
= 0;
398 ahci_sg
->flags_size
= cpu_to_le32(0x3fffff &
403 buf_len
-= max_bytes
;
409 static void ahci_fill_cmd_slot(struct ahci_ioports
*pp
, u32 cmd_slot
, u32 opts
)
411 struct ahci_cmd_hdr
*cmd_hdr
= (struct ahci_cmd_hdr
*)(pp
->cmd_slot
+
412 AHCI_CMD_SLOT_SZ
* cmd_slot
);
414 memset(cmd_hdr
, 0, AHCI_CMD_SLOT_SZ
);
415 cmd_hdr
->opts
= cpu_to_le32(opts
);
417 cmd_hdr
->tbl_addr
= cpu_to_le32(pp
->cmd_tbl
& 0xffffffff);
418 cmd_hdr
->tbl_addr_hi
= 0;
421 #define AHCI_GET_CMD_SLOT(c) ((c) ? ffs(c) : 0)
423 static int ahci_exec_ata_cmd(struct ahci_probe_ent
*probe_ent
,
424 u8 port
, struct sata_fis_h2d
*cfis
,
425 u8
*buf
, u32 buf_len
, s32 is_write
)
427 struct ahci_ioports
*pp
= &(probe_ent
->port
[port
]);
428 struct sata_port_regs
*port_mmio
=
429 (struct sata_port_regs
*)pp
->port_mmio
;
431 int sg_count
= 0, cmd_slot
= 0;
433 cmd_slot
= AHCI_GET_CMD_SLOT(readl(&(port_mmio
->ci
)));
434 if (32 == cmd_slot
) {
435 printf("Can't find empty command slot!\n");
439 /* Check xfer length */
440 if (buf_len
> MAX_BYTES_PER_TRANS
) {
441 printf("Max transfer length is %dB\n\r",
442 MAX_BYTES_PER_TRANS
);
446 memcpy((u8
*)(pp
->cmd_tbl
), cfis
, sizeof(struct sata_fis_h2d
));
448 sg_count
= ahci_fill_sg(probe_ent
, port
, buf
, buf_len
);
449 opts
= (sizeof(struct sata_fis_h2d
) >> 2) | (sg_count
<< 16);
452 ahci_fill_cmd_slot(pp
, cmd_slot
, opts
);
454 writel_with_flush(1 << cmd_slot
, &(port_mmio
->ci
));
456 if (waiting_for_cmd_completed((u8
*)&(port_mmio
->ci
),
457 10000, 0x1 << cmd_slot
)) {
458 printf("timeout exit!\n");
461 debug("ahci_exec_ata_cmd: %d byte transferred.\n",
462 pp
->cmd_slot
->status
);
467 static void ahci_set_feature(u8 dev
, u8 port
)
469 struct ahci_probe_ent
*probe_ent
=
470 (struct ahci_probe_ent
*)sata_dev_desc
[dev
].priv
;
471 struct sata_fis_h2d h2d
, *cfis
= &h2d
;
473 memset(cfis
, 0, sizeof(struct sata_fis_h2d
));
474 cfis
->fis_type
= SATA_FIS_TYPE_REGISTER_H2D
;
475 cfis
->pm_port_c
= 1 << 7;
476 cfis
->command
= ATA_CMD_SET_FEATURES
;
477 cfis
->features
= SETFEATURES_XFER
;
478 cfis
->sector_count
= ffs(probe_ent
->udma_mask
+ 1) + 0x3e;
480 ahci_exec_ata_cmd(probe_ent
, port
, cfis
, NULL
, 0, READ_CMD
);
483 static int ahci_port_start(struct ahci_probe_ent
*probe_ent
,
486 struct ahci_ioports
*pp
= &(probe_ent
->port
[port
]);
487 struct sata_port_regs
*port_mmio
=
488 (struct sata_port_regs
*)pp
->port_mmio
;
491 int timeout
= 10000000;
493 debug("Enter start port: %d\n", port
);
494 port_status
= readl(&(port_mmio
->ssts
));
495 debug("Port %d status: %x\n", port
, port_status
);
496 if ((port_status
& 0xf) != 0x03) {
497 printf("No Link on this port!\n");
501 mem
= (u32
)malloc(AHCI_PORT_PRIV_DMA_SZ
+ 1024);
504 printf("No mem for table!\n");
508 mem
= (mem
+ 0x400) & (~0x3ff); /* Aligned to 1024-bytes */
509 memset((u8
*)mem
, 0, AHCI_PORT_PRIV_DMA_SZ
);
512 * First item in chunk of DMA memory: 32-slot command table,
513 * 32 bytes each in size
515 pp
->cmd_slot
= (struct ahci_cmd_hdr
*)mem
;
516 debug("cmd_slot = 0x%x\n", (unsigned int) pp
->cmd_slot
);
517 mem
+= (AHCI_CMD_SLOT_SZ
* DWC_AHSATA_MAX_CMD_SLOTS
);
520 * Second item: Received-FIS area, 256-Byte aligned
523 mem
+= AHCI_RX_FIS_SZ
;
526 * Third item: data area for storing a single command
527 * and its scatter-gather table
530 debug("cmd_tbl_dma = 0x%x\n", pp
->cmd_tbl
);
532 mem
+= AHCI_CMD_TBL_HDR
;
534 writel_with_flush(0x00004444, &(port_mmio
->dmacr
));
535 pp
->cmd_tbl_sg
= (struct ahci_sg
*)mem
;
536 writel_with_flush((u32
)pp
->cmd_slot
, &(port_mmio
->clb
));
537 writel_with_flush(pp
->rx_fis
, &(port_mmio
->fb
));
540 writel_with_flush((SATA_PORT_CMD_FRE
| readl(&(port_mmio
->cmd
))),
543 /* Wait device ready */
544 while ((readl(&(port_mmio
->tfd
)) & (SATA_PORT_TFD_STS_ERR
|
545 SATA_PORT_TFD_STS_DRQ
| SATA_PORT_TFD_STS_BSY
))
549 debug("Device not ready for BSY, DRQ and"
554 writel_with_flush(PORT_CMD_ICC_ACTIVE
| PORT_CMD_FIS_RX
|
555 PORT_CMD_POWER_ON
| PORT_CMD_SPIN_UP
|
556 PORT_CMD_START
, &(port_mmio
->cmd
));
558 debug("Exit start port %d\n", port
);
563 int init_sata(int dev
)
567 struct ahci_probe_ent
*probe_ent
= NULL
;
569 if (dev
< 0 || dev
> (CONFIG_SYS_SATA_MAX_DEVICE
- 1)) {
570 printf("The sata index %d is out of ranges\n\r", dev
);
576 probe_ent
= (struct ahci_probe_ent
*)sata_dev_desc
[dev
].priv
;
577 linkmap
= probe_ent
->link_port_map
;
580 printf("No port device detected!\n");
584 for (i
= 0; i
< probe_ent
->n_ports
; i
++) {
585 if ((linkmap
>> i
) && ((linkmap
>> i
) & 0x01)) {
586 if (ahci_port_start(probe_ent
, (u8
)i
)) {
587 printf("Can not start port %d\n", i
);
590 probe_ent
->hard_port_no
= i
;
598 static void dwc_ahsata_print_info(int dev
)
600 block_dev_desc_t
*pdev
= &(sata_dev_desc
[dev
]);
602 printf("SATA Device Info:\n\r");
603 #ifdef CONFIG_SYS_64BIT_LBA
604 printf("S/N: %s\n\rProduct model number: %s\n\r"
605 "Firmware version: %s\n\rCapacity: %lld sectors\n\r",
606 pdev
->product
, pdev
->vendor
, pdev
->revision
, pdev
->lba
);
608 printf("S/N: %s\n\rProduct model number: %s\n\r"
609 "Firmware version: %s\n\rCapacity: %ld sectors\n\r",
610 pdev
->product
, pdev
->vendor
, pdev
->revision
, pdev
->lba
);
614 static void dwc_ahsata_identify(int dev
, u16
*id
)
616 struct ahci_probe_ent
*probe_ent
=
617 (struct ahci_probe_ent
*)sata_dev_desc
[dev
].priv
;
618 struct sata_fis_h2d h2d
, *cfis
= &h2d
;
619 u8 port
= probe_ent
->hard_port_no
;
621 memset(cfis
, 0, sizeof(struct sata_fis_h2d
));
623 cfis
->fis_type
= SATA_FIS_TYPE_REGISTER_H2D
;
624 cfis
->pm_port_c
= 0x80; /* is command */
625 cfis
->command
= ATA_CMD_ID_ATA
;
627 ahci_exec_ata_cmd(probe_ent
, port
, cfis
,
628 (u8
*)id
, ATA_ID_WORDS
* 2, READ_CMD
);
629 ata_swap_buf_le16(id
, ATA_ID_WORDS
);
632 static void dwc_ahsata_xfer_mode(int dev
, u16
*id
)
634 struct ahci_probe_ent
*probe_ent
=
635 (struct ahci_probe_ent
*)sata_dev_desc
[dev
].priv
;
637 probe_ent
->pio_mask
= id
[ATA_ID_PIO_MODES
];
638 probe_ent
->udma_mask
= id
[ATA_ID_UDMA_MODES
];
639 debug("pio %04x, udma %04x\n\r",
640 probe_ent
->pio_mask
, probe_ent
->udma_mask
);
643 static u32
dwc_ahsata_rw_cmd(int dev
, u32 start
, u32 blkcnt
,
644 u8
*buffer
, int is_write
)
646 struct ahci_probe_ent
*probe_ent
=
647 (struct ahci_probe_ent
*)sata_dev_desc
[dev
].priv
;
648 struct sata_fis_h2d h2d
, *cfis
= &h2d
;
649 u8 port
= probe_ent
->hard_port_no
;
654 memset(cfis
, 0, sizeof(struct sata_fis_h2d
));
656 cfis
->fis_type
= SATA_FIS_TYPE_REGISTER_H2D
;
657 cfis
->pm_port_c
= 0x80; /* is command */
658 cfis
->command
= (is_write
) ? ATA_CMD_WRITE
: ATA_CMD_READ
;
659 cfis
->device
= ATA_LBA
;
661 cfis
->device
|= (block
>> 24) & 0xf;
662 cfis
->lba_high
= (block
>> 16) & 0xff;
663 cfis
->lba_mid
= (block
>> 8) & 0xff;
664 cfis
->lba_low
= block
& 0xff;
665 cfis
->sector_count
= (u8
)(blkcnt
& 0xff);
667 if (ahci_exec_ata_cmd(probe_ent
, port
, cfis
,
668 buffer
, ATA_SECT_SIZE
* blkcnt
, is_write
) > 0)
674 void dwc_ahsata_flush_cache(int dev
)
676 struct ahci_probe_ent
*probe_ent
=
677 (struct ahci_probe_ent
*)sata_dev_desc
[dev
].priv
;
678 struct sata_fis_h2d h2d
, *cfis
= &h2d
;
679 u8 port
= probe_ent
->hard_port_no
;
681 memset(cfis
, 0, sizeof(struct sata_fis_h2d
));
683 cfis
->fis_type
= SATA_FIS_TYPE_REGISTER_H2D
;
684 cfis
->pm_port_c
= 0x80; /* is command */
685 cfis
->command
= ATA_CMD_FLUSH
;
687 ahci_exec_ata_cmd(probe_ent
, port
, cfis
, NULL
, 0, 0);
690 static u32
dwc_ahsata_rw_cmd_ext(int dev
, u32 start
, lbaint_t blkcnt
,
691 u8
*buffer
, int is_write
)
693 struct ahci_probe_ent
*probe_ent
=
694 (struct ahci_probe_ent
*)sata_dev_desc
[dev
].priv
;
695 struct sata_fis_h2d h2d
, *cfis
= &h2d
;
696 u8 port
= probe_ent
->hard_port_no
;
701 memset(cfis
, 0, sizeof(struct sata_fis_h2d
));
703 cfis
->fis_type
= SATA_FIS_TYPE_REGISTER_H2D
;
704 cfis
->pm_port_c
= 0x80; /* is command */
706 cfis
->command
= (is_write
) ? ATA_CMD_WRITE_EXT
709 cfis
->lba_high_exp
= (block
>> 40) & 0xff;
710 cfis
->lba_mid_exp
= (block
>> 32) & 0xff;
711 cfis
->lba_low_exp
= (block
>> 24) & 0xff;
712 cfis
->lba_high
= (block
>> 16) & 0xff;
713 cfis
->lba_mid
= (block
>> 8) & 0xff;
714 cfis
->lba_low
= block
& 0xff;
715 cfis
->device
= ATA_LBA
;
716 cfis
->sector_count_exp
= (blkcnt
>> 8) & 0xff;
717 cfis
->sector_count
= blkcnt
& 0xff;
719 if (ahci_exec_ata_cmd(probe_ent
, port
, cfis
, buffer
,
720 ATA_SECT_SIZE
* blkcnt
, is_write
) > 0)
726 u32
dwc_ahsata_rw_ncq_cmd(int dev
, u32 start
, lbaint_t blkcnt
,
727 u8
*buffer
, int is_write
)
729 struct ahci_probe_ent
*probe_ent
=
730 (struct ahci_probe_ent
*)sata_dev_desc
[dev
].priv
;
731 struct sata_fis_h2d h2d
, *cfis
= &h2d
;
732 u8 port
= probe_ent
->hard_port_no
;
735 if (sata_dev_desc
[dev
].lba48
!= 1) {
736 printf("execute FPDMA command on non-LBA48 hard disk\n\r");
742 memset(cfis
, 0, sizeof(struct sata_fis_h2d
));
744 cfis
->fis_type
= SATA_FIS_TYPE_REGISTER_H2D
;
745 cfis
->pm_port_c
= 0x80; /* is command */
747 cfis
->command
= (is_write
) ? ATA_CMD_FPDMA_WRITE
748 : ATA_CMD_FPDMA_READ
;
750 cfis
->lba_high_exp
= (block
>> 40) & 0xff;
751 cfis
->lba_mid_exp
= (block
>> 32) & 0xff;
752 cfis
->lba_low_exp
= (block
>> 24) & 0xff;
753 cfis
->lba_high
= (block
>> 16) & 0xff;
754 cfis
->lba_mid
= (block
>> 8) & 0xff;
755 cfis
->lba_low
= block
& 0xff;
757 cfis
->device
= ATA_LBA
;
758 cfis
->features_exp
= (blkcnt
>> 8) & 0xff;
759 cfis
->features
= blkcnt
& 0xff;
761 /* Use the latest queue */
762 ahci_exec_ata_cmd(probe_ent
, port
, cfis
,
763 buffer
, ATA_SECT_SIZE
* blkcnt
, is_write
);
768 void dwc_ahsata_flush_cache_ext(int dev
)
770 struct ahci_probe_ent
*probe_ent
=
771 (struct ahci_probe_ent
*)sata_dev_desc
[dev
].priv
;
772 struct sata_fis_h2d h2d
, *cfis
= &h2d
;
773 u8 port
= probe_ent
->hard_port_no
;
775 memset(cfis
, 0, sizeof(struct sata_fis_h2d
));
777 cfis
->fis_type
= SATA_FIS_TYPE_REGISTER_H2D
;
778 cfis
->pm_port_c
= 0x80; /* is command */
779 cfis
->command
= ATA_CMD_FLUSH_EXT
;
781 ahci_exec_ata_cmd(probe_ent
, port
, cfis
, NULL
, 0, 0);
784 static void dwc_ahsata_init_wcache(int dev
, u16
*id
)
786 struct ahci_probe_ent
*probe_ent
=
787 (struct ahci_probe_ent
*)sata_dev_desc
[dev
].priv
;
789 if (ata_id_has_wcache(id
) && ata_id_wcache_enabled(id
))
790 probe_ent
->flags
|= SATA_FLAG_WCACHE
;
791 if (ata_id_has_flush(id
))
792 probe_ent
->flags
|= SATA_FLAG_FLUSH
;
793 if (ata_id_has_flush_ext(id
))
794 probe_ent
->flags
|= SATA_FLAG_FLUSH_EXT
;
797 u32
ata_low_level_rw_lba48(int dev
, u32 blknr
, lbaint_t blkcnt
,
798 const void *buffer
, int is_write
)
808 max_blks
= ATA_MAX_SECTORS_LBA48
;
811 if (blks
> max_blks
) {
812 if (max_blks
!= dwc_ahsata_rw_cmd_ext(dev
, start
,
813 max_blks
, addr
, is_write
))
817 addr
+= ATA_SECT_SIZE
* max_blks
;
819 if (blks
!= dwc_ahsata_rw_cmd_ext(dev
, start
,
820 blks
, addr
, is_write
))
824 addr
+= ATA_SECT_SIZE
* blks
;
831 u32
ata_low_level_rw_lba28(int dev
, u32 blknr
, lbaint_t blkcnt
,
832 const void *buffer
, int is_write
)
842 max_blks
= ATA_MAX_SECTORS
;
844 if (blks
> max_blks
) {
845 if (max_blks
!= dwc_ahsata_rw_cmd(dev
, start
,
846 max_blks
, addr
, is_write
))
850 addr
+= ATA_SECT_SIZE
* max_blks
;
852 if (blks
!= dwc_ahsata_rw_cmd(dev
, start
,
853 blks
, addr
, is_write
))
857 addr
+= ATA_SECT_SIZE
* blks
;
865 * SATA interface between low level driver and command layer
867 ulong
sata_read(int dev
, ulong blknr
, lbaint_t blkcnt
, void *buffer
)
871 if (sata_dev_desc
[dev
].lba48
)
872 rc
= ata_low_level_rw_lba48(dev
, blknr
, blkcnt
,
875 rc
= ata_low_level_rw_lba28(dev
, blknr
, blkcnt
,
880 ulong
sata_write(int dev
, ulong blknr
, lbaint_t blkcnt
, const void *buffer
)
883 struct ahci_probe_ent
*probe_ent
=
884 (struct ahci_probe_ent
*)sata_dev_desc
[dev
].priv
;
885 u32 flags
= probe_ent
->flags
;
887 if (sata_dev_desc
[dev
].lba48
) {
888 rc
= ata_low_level_rw_lba48(dev
, blknr
, blkcnt
,
890 if ((flags
& SATA_FLAG_WCACHE
) &&
891 (flags
& SATA_FLAG_FLUSH_EXT
))
892 dwc_ahsata_flush_cache_ext(dev
);
894 rc
= ata_low_level_rw_lba28(dev
, blknr
, blkcnt
,
896 if ((flags
& SATA_FLAG_WCACHE
) &&
897 (flags
& SATA_FLAG_FLUSH
))
898 dwc_ahsata_flush_cache(dev
);
903 int scan_sata(int dev
)
905 u8 serial
[ATA_ID_SERNO_LEN
+ 1] = { 0 };
906 u8 firmware
[ATA_ID_FW_REV_LEN
+ 1] = { 0 };
907 u8 product
[ATA_ID_PROD_LEN
+ 1] = { 0 };
910 struct ahci_probe_ent
*probe_ent
=
911 (struct ahci_probe_ent
*)sata_dev_desc
[dev
].priv
;
912 u8 port
= probe_ent
->hard_port_no
;
913 block_dev_desc_t
*pdev
= &(sata_dev_desc
[dev
]);
915 id
= (u16
*)malloc(ATA_ID_WORDS
* 2);
917 printf("id malloc failed\n\r");
921 /* Identify device to get information */
922 dwc_ahsata_identify(dev
, id
);
925 ata_id_c_string(id
, serial
, ATA_ID_SERNO
, sizeof(serial
));
926 memcpy(pdev
->product
, serial
, sizeof(serial
));
928 /* Firmware version */
929 ata_id_c_string(id
, firmware
, ATA_ID_FW_REV
, sizeof(firmware
));
930 memcpy(pdev
->revision
, firmware
, sizeof(firmware
));
933 ata_id_c_string(id
, product
, ATA_ID_PROD
, sizeof(product
));
934 memcpy(pdev
->vendor
, product
, sizeof(product
));
937 n_sectors
= ata_id_n_sectors(id
);
938 pdev
->lba
= (u32
)n_sectors
;
940 pdev
->type
= DEV_TYPE_HARDDISK
;
941 pdev
->blksz
= ATA_SECT_SIZE
;
944 /* Check if support LBA48 */
945 if (ata_id_has_lba48(id
)) {
947 debug("Device support LBA48\n\r");
950 /* Get the NCQ queue depth from device */
951 probe_ent
->flags
&= (~SATA_FLAG_Q_DEP_MASK
);
952 probe_ent
->flags
|= ata_id_queue_depth(id
);
954 /* Get the xfer mode from device */
955 dwc_ahsata_xfer_mode(dev
, id
);
957 /* Get the write cache status from device */
958 dwc_ahsata_init_wcache(dev
, id
);
960 /* Set the xfer mode to highest speed */
961 ahci_set_feature(dev
, port
);
965 dwc_ahsata_print_info(dev
);