2 * Copyright (C) 2010-2011 Freescale Semiconductor, Inc.
3 * Terry Lv <r65388@freescale.com>
5 * SPDX-License-Identifier: GPL-2.0+
15 #include <linux/ctype.h>
16 #include <asm/errno.h>
18 #include <linux/bitops.h>
19 #include <asm/arch/clock.h>
20 #include <asm/arch/sys_proto.h>
21 #include "dwc_ahsata.h"
23 struct sata_port_regs
{
47 struct sata_host_regs
{
76 #define MAX_DATA_BYTES_PER_SG (4 * 1024 * 1024)
77 #define MAX_BYTES_PER_TRANS (AHCI_MAX_SG * MAX_DATA_BYTES_PER_SG)
79 #define writel_with_flush(a, b) do { writel(a, b); readl(b); } while (0)
83 static inline u32
ahci_port_base(u32 base
, u32 port
)
85 return base
+ 0x100 + (port
* 0x80);
88 static int waiting_for_cmd_completed(u8
*offset
,
96 ((status
= readl(offset
)) & sign
) && i
< timeout_msec
;
100 return (i
< timeout_msec
) ? 0 : -1;
103 static int ahci_setup_oobr(struct ahci_probe_ent
*probe_ent
,
106 struct sata_host_regs
*host_mmio
=
107 (struct sata_host_regs
*)probe_ent
->mmio_base
;
109 writel(SATA_HOST_OOBR_WE
, &(host_mmio
->oobr
));
110 writel(0x02060b14, &(host_mmio
->oobr
));
115 static int ahci_host_init(struct ahci_probe_ent
*probe_ent
)
117 u32 tmp
, cap_save
, num_ports
;
118 int i
, j
, timeout
= 1000;
119 struct sata_port_regs
*port_mmio
= NULL
;
120 struct sata_host_regs
*host_mmio
=
121 (struct sata_host_regs
*)probe_ent
->mmio_base
;
122 int clk
= mxc_get_clock(MXC_SATA_CLK
);
124 cap_save
= readl(&(host_mmio
->cap
));
125 cap_save
|= SATA_HOST_CAP_SSS
;
127 /* global controller reset */
128 tmp
= readl(&(host_mmio
->ghc
));
129 if ((tmp
& SATA_HOST_GHC_HR
) == 0)
130 writel_with_flush(tmp
| SATA_HOST_GHC_HR
, &(host_mmio
->ghc
));
132 while ((readl(&(host_mmio
->ghc
)) & SATA_HOST_GHC_HR
)
137 debug("controller reset failed (0x%x)\n", tmp
);
142 writel(clk
/ 1000, &(host_mmio
->timer1ms
));
144 ahci_setup_oobr(probe_ent
, 0);
146 writel_with_flush(SATA_HOST_GHC_AE
, &(host_mmio
->ghc
));
147 writel(cap_save
, &(host_mmio
->cap
));
148 num_ports
= (cap_save
& SATA_HOST_CAP_NP_MASK
) + 1;
149 writel_with_flush((1 << num_ports
) - 1,
153 * Determine which Ports are implemented by the DWC_ahsata,
154 * by reading the PI register. This bit map value aids the
155 * software to determine how many Ports are available and
156 * which Port registers need to be initialized.
158 probe_ent
->cap
= readl(&(host_mmio
->cap
));
159 probe_ent
->port_map
= readl(&(host_mmio
->pi
));
161 /* Determine how many command slots the HBA supports */
163 (probe_ent
->cap
& SATA_HOST_CAP_NP_MASK
) + 1;
165 debug("cap 0x%x port_map 0x%x n_ports %d\n",
166 probe_ent
->cap
, probe_ent
->port_map
, probe_ent
->n_ports
);
168 for (i
= 0; i
< probe_ent
->n_ports
; i
++) {
169 probe_ent
->port
[i
].port_mmio
=
170 ahci_port_base((u32
)host_mmio
, i
);
172 (struct sata_port_regs
*)probe_ent
->port
[i
].port_mmio
;
174 /* Ensure that the DWC_ahsata is in idle state */
175 tmp
= readl(&(port_mmio
->cmd
));
178 * When P#CMD.ST, P#CMD.CR, P#CMD.FRE and P#CMD.FR
179 * are all cleared, the Port is in an idle state.
181 if (tmp
& (SATA_PORT_CMD_CR
| SATA_PORT_CMD_FR
|
182 SATA_PORT_CMD_FRE
| SATA_PORT_CMD_ST
)) {
185 * System software places a Port into the idle state by
186 * clearing P#CMD.ST and waiting for P#CMD.CR to return
189 tmp
&= ~SATA_PORT_CMD_ST
;
190 writel_with_flush(tmp
, &(port_mmio
->cmd
));
193 * spec says 500 msecs for each bit, so
194 * this is slightly incorrect.
199 while ((readl(&(port_mmio
->cmd
)) & SATA_PORT_CMD_CR
)
204 debug("port reset failed (0x%x)\n", tmp
);
210 tmp
= readl(&(port_mmio
->cmd
));
211 writel((tmp
| SATA_PORT_CMD_SUD
), &(port_mmio
->cmd
));
213 /* Wait for spin-up to finish */
215 while (!(readl(&(port_mmio
->cmd
)) | SATA_PORT_CMD_SUD
)
219 debug("Spin-Up can't finish!\n");
223 for (j
= 0; j
< 100; ++j
) {
225 tmp
= readl(&(port_mmio
->ssts
));
226 if (((tmp
& SATA_PORT_SSTS_DET_MASK
) == 0x3) ||
227 ((tmp
& SATA_PORT_SSTS_DET_MASK
) == 0x1))
231 /* Wait for COMINIT bit 26 (DIAG_X) in SERR */
233 while (!(readl(&(port_mmio
->serr
)) | SATA_PORT_SERR_DIAG_X
)
237 debug("Can't find DIAG_X set!\n");
242 * For each implemented Port, clear the P#SERR
243 * register, by writing ones to each implemented\
246 tmp
= readl(&(port_mmio
->serr
));
247 debug("P#SERR 0x%x\n",
249 writel(tmp
, &(port_mmio
->serr
));
251 /* Ack any pending irq events for this port */
252 tmp
= readl(&(host_mmio
->is
));
253 debug("IS 0x%x\n", tmp
);
255 writel(tmp
, &(host_mmio
->is
));
257 writel(1 << i
, &(host_mmio
->is
));
259 /* set irq mask (enables interrupts) */
260 writel(DEF_PORT_IRQ
, &(port_mmio
->ie
));
262 /* register linkup ports */
263 tmp
= readl(&(port_mmio
->ssts
));
264 debug("Port %d status: 0x%x\n", i
, tmp
);
265 if ((tmp
& SATA_PORT_SSTS_DET_MASK
) == 0x03)
266 probe_ent
->link_port_map
|= (0x01 << i
);
269 tmp
= readl(&(host_mmio
->ghc
));
270 debug("GHC 0x%x\n", tmp
);
271 writel(tmp
| SATA_HOST_GHC_IE
, &(host_mmio
->ghc
));
272 tmp
= readl(&(host_mmio
->ghc
));
273 debug("GHC 0x%x\n", tmp
);
278 static void ahci_print_info(struct ahci_probe_ent
*probe_ent
)
280 struct sata_host_regs
*host_mmio
=
281 (struct sata_host_regs
*)probe_ent
->mmio_base
;
282 u32 vers
, cap
, impl
, speed
;
286 vers
= readl(&(host_mmio
->vs
));
287 cap
= probe_ent
->cap
;
288 impl
= probe_ent
->port_map
;
290 speed
= (cap
& SATA_HOST_CAP_ISS_MASK
)
291 >> SATA_HOST_CAP_ISS_OFFSET
;
301 printf("AHCI %02x%02x.%02x%02x "
302 "%u slots %u ports %s Gbps 0x%x impl %s mode\n",
307 ((cap
>> 8) & 0x1f) + 1,
316 cap
& (1 << 31) ? "64bit " : "",
317 cap
& (1 << 30) ? "ncq " : "",
318 cap
& (1 << 28) ? "ilck " : "",
319 cap
& (1 << 27) ? "stag " : "",
320 cap
& (1 << 26) ? "pm " : "",
321 cap
& (1 << 25) ? "led " : "",
322 cap
& (1 << 24) ? "clo " : "",
323 cap
& (1 << 19) ? "nz " : "",
324 cap
& (1 << 18) ? "only " : "",
325 cap
& (1 << 17) ? "pmp " : "",
326 cap
& (1 << 15) ? "pio " : "",
327 cap
& (1 << 14) ? "slum " : "",
328 cap
& (1 << 13) ? "part " : "");
331 static int ahci_init_one(int pdev
)
334 struct ahci_probe_ent
*probe_ent
= NULL
;
336 probe_ent
= malloc(sizeof(struct ahci_probe_ent
));
337 memset(probe_ent
, 0, sizeof(struct ahci_probe_ent
));
338 probe_ent
->dev
= pdev
;
340 probe_ent
->host_flags
= ATA_FLAG_SATA
346 probe_ent
->mmio_base
= CONFIG_DWC_AHSATA_BASE_ADDR
;
348 /* initialize adapter */
349 rc
= ahci_host_init(probe_ent
);
353 ahci_print_info(probe_ent
);
355 /* Save the private struct to block device struct */
356 sata_dev_desc
[pdev
].priv
= (void *)probe_ent
;
364 static int ahci_fill_sg(struct ahci_probe_ent
*probe_ent
,
365 u8 port
, unsigned char *buf
, int buf_len
)
367 struct ahci_ioports
*pp
= &(probe_ent
->port
[port
]);
368 struct ahci_sg
*ahci_sg
= pp
->cmd_tbl_sg
;
369 u32 sg_count
, max_bytes
;
372 max_bytes
= MAX_DATA_BYTES_PER_SG
;
373 sg_count
= ((buf_len
- 1) / max_bytes
) + 1;
374 if (sg_count
> AHCI_MAX_SG
) {
375 printf("Error:Too much sg!\n");
379 for (i
= 0; i
< sg_count
; i
++) {
381 cpu_to_le32((u32
)buf
+ i
* max_bytes
);
382 ahci_sg
->addr_hi
= 0;
383 ahci_sg
->flags_size
= cpu_to_le32(0x3fffff &
388 buf_len
-= max_bytes
;
394 static void ahci_fill_cmd_slot(struct ahci_ioports
*pp
, u32 cmd_slot
, u32 opts
)
396 struct ahci_cmd_hdr
*cmd_hdr
= (struct ahci_cmd_hdr
*)(pp
->cmd_slot
+
397 AHCI_CMD_SLOT_SZ
* cmd_slot
);
399 memset(cmd_hdr
, 0, AHCI_CMD_SLOT_SZ
);
400 cmd_hdr
->opts
= cpu_to_le32(opts
);
402 cmd_hdr
->tbl_addr
= cpu_to_le32(pp
->cmd_tbl
& 0xffffffff);
403 cmd_hdr
->tbl_addr_hi
= 0;
406 #define AHCI_GET_CMD_SLOT(c) ((c) ? ffs(c) : 0)
408 static int ahci_exec_ata_cmd(struct ahci_probe_ent
*probe_ent
,
409 u8 port
, struct sata_fis_h2d
*cfis
,
410 u8
*buf
, u32 buf_len
, s32 is_write
)
412 struct ahci_ioports
*pp
= &(probe_ent
->port
[port
]);
413 struct sata_port_regs
*port_mmio
=
414 (struct sata_port_regs
*)pp
->port_mmio
;
416 int sg_count
= 0, cmd_slot
= 0;
418 cmd_slot
= AHCI_GET_CMD_SLOT(readl(&(port_mmio
->ci
)));
419 if (32 == cmd_slot
) {
420 printf("Can't find empty command slot!\n");
424 /* Check xfer length */
425 if (buf_len
> MAX_BYTES_PER_TRANS
) {
426 printf("Max transfer length is %dB\n\r",
427 MAX_BYTES_PER_TRANS
);
431 memcpy((u8
*)(pp
->cmd_tbl
), cfis
, sizeof(struct sata_fis_h2d
));
433 sg_count
= ahci_fill_sg(probe_ent
, port
, buf
, buf_len
);
434 opts
= (sizeof(struct sata_fis_h2d
) >> 2) | (sg_count
<< 16);
437 flush_cache((ulong
)buf
, buf_len
);
439 ahci_fill_cmd_slot(pp
, cmd_slot
, opts
);
441 flush_cache((int)(pp
->cmd_slot
), AHCI_PORT_PRIV_DMA_SZ
);
442 writel_with_flush(1 << cmd_slot
, &(port_mmio
->ci
));
444 if (waiting_for_cmd_completed((u8
*)&(port_mmio
->ci
),
445 10000, 0x1 << cmd_slot
)) {
446 printf("timeout exit!\n");
449 invalidate_dcache_range((int)(pp
->cmd_slot
),
450 (int)(pp
->cmd_slot
)+AHCI_PORT_PRIV_DMA_SZ
);
451 debug("ahci_exec_ata_cmd: %d byte transferred.\n",
452 pp
->cmd_slot
->status
);
454 invalidate_dcache_range((ulong
)buf
, (ulong
)buf
+buf_len
);
459 static void ahci_set_feature(u8 dev
, u8 port
)
461 struct ahci_probe_ent
*probe_ent
=
462 (struct ahci_probe_ent
*)sata_dev_desc
[dev
].priv
;
463 struct sata_fis_h2d h2d
__aligned(ARCH_DMA_MINALIGN
);
464 struct sata_fis_h2d
*cfis
= &h2d
;
466 memset(cfis
, 0, sizeof(struct sata_fis_h2d
));
467 cfis
->fis_type
= SATA_FIS_TYPE_REGISTER_H2D
;
468 cfis
->pm_port_c
= 1 << 7;
469 cfis
->command
= ATA_CMD_SET_FEATURES
;
470 cfis
->features
= SETFEATURES_XFER
;
471 cfis
->sector_count
= ffs(probe_ent
->udma_mask
+ 1) + 0x3e;
473 ahci_exec_ata_cmd(probe_ent
, port
, cfis
, NULL
, 0, READ_CMD
);
476 static int ahci_port_start(struct ahci_probe_ent
*probe_ent
,
479 struct ahci_ioports
*pp
= &(probe_ent
->port
[port
]);
480 struct sata_port_regs
*port_mmio
=
481 (struct sata_port_regs
*)pp
->port_mmio
;
484 int timeout
= 10000000;
486 debug("Enter start port: %d\n", port
);
487 port_status
= readl(&(port_mmio
->ssts
));
488 debug("Port %d status: %x\n", port
, port_status
);
489 if ((port_status
& 0xf) != 0x03) {
490 printf("No Link on this port!\n");
494 mem
= (u32
)malloc(AHCI_PORT_PRIV_DMA_SZ
+ 1024);
497 printf("No mem for table!\n");
501 mem
= (mem
+ 0x400) & (~0x3ff); /* Aligned to 1024-bytes */
502 memset((u8
*)mem
, 0, AHCI_PORT_PRIV_DMA_SZ
);
505 * First item in chunk of DMA memory: 32-slot command table,
506 * 32 bytes each in size
508 pp
->cmd_slot
= (struct ahci_cmd_hdr
*)mem
;
509 debug("cmd_slot = 0x%x\n", (unsigned int) pp
->cmd_slot
);
510 mem
+= (AHCI_CMD_SLOT_SZ
* DWC_AHSATA_MAX_CMD_SLOTS
);
513 * Second item: Received-FIS area, 256-Byte aligned
516 mem
+= AHCI_RX_FIS_SZ
;
519 * Third item: data area for storing a single command
520 * and its scatter-gather table
523 debug("cmd_tbl_dma = 0x%x\n", pp
->cmd_tbl
);
525 mem
+= AHCI_CMD_TBL_HDR
;
527 writel_with_flush(0x00004444, &(port_mmio
->dmacr
));
528 pp
->cmd_tbl_sg
= (struct ahci_sg
*)mem
;
529 writel_with_flush((u32
)pp
->cmd_slot
, &(port_mmio
->clb
));
530 writel_with_flush(pp
->rx_fis
, &(port_mmio
->fb
));
533 writel_with_flush((SATA_PORT_CMD_FRE
| readl(&(port_mmio
->cmd
))),
536 /* Wait device ready */
537 while ((readl(&(port_mmio
->tfd
)) & (SATA_PORT_TFD_STS_ERR
|
538 SATA_PORT_TFD_STS_DRQ
| SATA_PORT_TFD_STS_BSY
))
542 debug("Device not ready for BSY, DRQ and"
547 writel_with_flush(PORT_CMD_ICC_ACTIVE
| PORT_CMD_FIS_RX
|
548 PORT_CMD_POWER_ON
| PORT_CMD_SPIN_UP
|
549 PORT_CMD_START
, &(port_mmio
->cmd
));
551 debug("Exit start port %d\n", port
);
556 int init_sata(int dev
)
560 struct ahci_probe_ent
*probe_ent
= NULL
;
562 #if defined(CONFIG_MX6)
563 if (!is_cpu_type(MXC_CPU_MX6Q
) && !is_cpu_type(MXC_CPU_MX6D
))
566 if (dev
< 0 || dev
> (CONFIG_SYS_SATA_MAX_DEVICE
- 1)) {
567 printf("The sata index %d is out of ranges\n\r", dev
);
573 probe_ent
= (struct ahci_probe_ent
*)sata_dev_desc
[dev
].priv
;
574 linkmap
= probe_ent
->link_port_map
;
577 printf("No port device detected!\n");
581 for (i
= 0; i
< probe_ent
->n_ports
; i
++) {
582 if ((linkmap
>> i
) && ((linkmap
>> i
) & 0x01)) {
583 if (ahci_port_start(probe_ent
, (u8
)i
)) {
584 printf("Can not start port %d\n", i
);
587 probe_ent
->hard_port_no
= i
;
595 static void dwc_ahsata_print_info(int dev
)
597 block_dev_desc_t
*pdev
= &(sata_dev_desc
[dev
]);
599 printf("SATA Device Info:\n\r");
600 #ifdef CONFIG_SYS_64BIT_LBA
601 printf("S/N: %s\n\rProduct model number: %s\n\r"
602 "Firmware version: %s\n\rCapacity: %lld sectors\n\r",
603 pdev
->product
, pdev
->vendor
, pdev
->revision
, pdev
->lba
);
605 printf("S/N: %s\n\rProduct model number: %s\n\r"
606 "Firmware version: %s\n\rCapacity: %ld sectors\n\r",
607 pdev
->product
, pdev
->vendor
, pdev
->revision
, pdev
->lba
);
611 static void dwc_ahsata_identify(int dev
, u16
*id
)
613 struct ahci_probe_ent
*probe_ent
=
614 (struct ahci_probe_ent
*)sata_dev_desc
[dev
].priv
;
615 struct sata_fis_h2d h2d
__aligned(ARCH_DMA_MINALIGN
);
616 struct sata_fis_h2d
*cfis
= &h2d
;
617 u8 port
= probe_ent
->hard_port_no
;
619 memset(cfis
, 0, sizeof(struct sata_fis_h2d
));
621 cfis
->fis_type
= SATA_FIS_TYPE_REGISTER_H2D
;
622 cfis
->pm_port_c
= 0x80; /* is command */
623 cfis
->command
= ATA_CMD_ID_ATA
;
625 ahci_exec_ata_cmd(probe_ent
, port
, cfis
,
626 (u8
*)id
, ATA_ID_WORDS
* 2, READ_CMD
);
627 ata_swap_buf_le16(id
, ATA_ID_WORDS
);
630 static void dwc_ahsata_xfer_mode(int dev
, u16
*id
)
632 struct ahci_probe_ent
*probe_ent
=
633 (struct ahci_probe_ent
*)sata_dev_desc
[dev
].priv
;
635 probe_ent
->pio_mask
= id
[ATA_ID_PIO_MODES
];
636 probe_ent
->udma_mask
= id
[ATA_ID_UDMA_MODES
];
637 debug("pio %04x, udma %04x\n\r",
638 probe_ent
->pio_mask
, probe_ent
->udma_mask
);
641 static u32
dwc_ahsata_rw_cmd(int dev
, u32 start
, u32 blkcnt
,
642 u8
*buffer
, int is_write
)
644 struct ahci_probe_ent
*probe_ent
=
645 (struct ahci_probe_ent
*)sata_dev_desc
[dev
].priv
;
646 struct sata_fis_h2d h2d
__aligned(ARCH_DMA_MINALIGN
);
647 struct sata_fis_h2d
*cfis
= &h2d
;
648 u8 port
= probe_ent
->hard_port_no
;
653 memset(cfis
, 0, sizeof(struct sata_fis_h2d
));
655 cfis
->fis_type
= SATA_FIS_TYPE_REGISTER_H2D
;
656 cfis
->pm_port_c
= 0x80; /* is command */
657 cfis
->command
= (is_write
) ? ATA_CMD_WRITE
: ATA_CMD_READ
;
658 cfis
->device
= ATA_LBA
;
660 cfis
->device
|= (block
>> 24) & 0xf;
661 cfis
->lba_high
= (block
>> 16) & 0xff;
662 cfis
->lba_mid
= (block
>> 8) & 0xff;
663 cfis
->lba_low
= block
& 0xff;
664 cfis
->sector_count
= (u8
)(blkcnt
& 0xff);
666 if (ahci_exec_ata_cmd(probe_ent
, port
, cfis
,
667 buffer
, ATA_SECT_SIZE
* blkcnt
, is_write
) > 0)
673 void dwc_ahsata_flush_cache(int dev
)
675 struct ahci_probe_ent
*probe_ent
=
676 (struct ahci_probe_ent
*)sata_dev_desc
[dev
].priv
;
677 struct sata_fis_h2d h2d
__aligned(ARCH_DMA_MINALIGN
);
678 struct sata_fis_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
__aligned(ARCH_DMA_MINALIGN
);
696 struct sata_fis_h2d
*cfis
= &h2d
;
697 u8 port
= probe_ent
->hard_port_no
;
702 memset(cfis
, 0, sizeof(struct sata_fis_h2d
));
704 cfis
->fis_type
= SATA_FIS_TYPE_REGISTER_H2D
;
705 cfis
->pm_port_c
= 0x80; /* is command */
707 cfis
->command
= (is_write
) ? ATA_CMD_WRITE_EXT
710 cfis
->lba_high_exp
= (block
>> 40) & 0xff;
711 cfis
->lba_mid_exp
= (block
>> 32) & 0xff;
712 cfis
->lba_low_exp
= (block
>> 24) & 0xff;
713 cfis
->lba_high
= (block
>> 16) & 0xff;
714 cfis
->lba_mid
= (block
>> 8) & 0xff;
715 cfis
->lba_low
= block
& 0xff;
716 cfis
->device
= ATA_LBA
;
717 cfis
->sector_count_exp
= (blkcnt
>> 8) & 0xff;
718 cfis
->sector_count
= blkcnt
& 0xff;
720 if (ahci_exec_ata_cmd(probe_ent
, port
, cfis
, buffer
,
721 ATA_SECT_SIZE
* blkcnt
, is_write
) > 0)
727 u32
dwc_ahsata_rw_ncq_cmd(int dev
, u32 start
, lbaint_t blkcnt
,
728 u8
*buffer
, int is_write
)
730 struct ahci_probe_ent
*probe_ent
=
731 (struct ahci_probe_ent
*)sata_dev_desc
[dev
].priv
;
732 struct sata_fis_h2d h2d
__aligned(ARCH_DMA_MINALIGN
);
733 struct sata_fis_h2d
*cfis
= &h2d
;
734 u8 port
= probe_ent
->hard_port_no
;
737 if (sata_dev_desc
[dev
].lba48
!= 1) {
738 printf("execute FPDMA command on non-LBA48 hard disk\n\r");
744 memset(cfis
, 0, sizeof(struct sata_fis_h2d
));
746 cfis
->fis_type
= SATA_FIS_TYPE_REGISTER_H2D
;
747 cfis
->pm_port_c
= 0x80; /* is command */
749 cfis
->command
= (is_write
) ? ATA_CMD_FPDMA_WRITE
750 : ATA_CMD_FPDMA_READ
;
752 cfis
->lba_high_exp
= (block
>> 40) & 0xff;
753 cfis
->lba_mid_exp
= (block
>> 32) & 0xff;
754 cfis
->lba_low_exp
= (block
>> 24) & 0xff;
755 cfis
->lba_high
= (block
>> 16) & 0xff;
756 cfis
->lba_mid
= (block
>> 8) & 0xff;
757 cfis
->lba_low
= block
& 0xff;
759 cfis
->device
= ATA_LBA
;
760 cfis
->features_exp
= (blkcnt
>> 8) & 0xff;
761 cfis
->features
= blkcnt
& 0xff;
763 /* Use the latest queue */
764 ahci_exec_ata_cmd(probe_ent
, port
, cfis
,
765 buffer
, ATA_SECT_SIZE
* blkcnt
, is_write
);
770 void dwc_ahsata_flush_cache_ext(int dev
)
772 struct ahci_probe_ent
*probe_ent
=
773 (struct ahci_probe_ent
*)sata_dev_desc
[dev
].priv
;
774 struct sata_fis_h2d h2d
__aligned(ARCH_DMA_MINALIGN
);
775 struct sata_fis_h2d
*cfis
= &h2d
;
776 u8 port
= probe_ent
->hard_port_no
;
778 memset(cfis
, 0, sizeof(struct sata_fis_h2d
));
780 cfis
->fis_type
= SATA_FIS_TYPE_REGISTER_H2D
;
781 cfis
->pm_port_c
= 0x80; /* is command */
782 cfis
->command
= ATA_CMD_FLUSH_EXT
;
784 ahci_exec_ata_cmd(probe_ent
, port
, cfis
, NULL
, 0, 0);
787 static void dwc_ahsata_init_wcache(int dev
, u16
*id
)
789 struct ahci_probe_ent
*probe_ent
=
790 (struct ahci_probe_ent
*)sata_dev_desc
[dev
].priv
;
792 if (ata_id_has_wcache(id
) && ata_id_wcache_enabled(id
))
793 probe_ent
->flags
|= SATA_FLAG_WCACHE
;
794 if (ata_id_has_flush(id
))
795 probe_ent
->flags
|= SATA_FLAG_FLUSH
;
796 if (ata_id_has_flush_ext(id
))
797 probe_ent
->flags
|= SATA_FLAG_FLUSH_EXT
;
800 u32
ata_low_level_rw_lba48(int dev
, u32 blknr
, lbaint_t blkcnt
,
801 const void *buffer
, int is_write
)
811 max_blks
= ATA_MAX_SECTORS_LBA48
;
814 if (blks
> max_blks
) {
815 if (max_blks
!= dwc_ahsata_rw_cmd_ext(dev
, start
,
816 max_blks
, addr
, is_write
))
820 addr
+= ATA_SECT_SIZE
* max_blks
;
822 if (blks
!= dwc_ahsata_rw_cmd_ext(dev
, start
,
823 blks
, addr
, is_write
))
827 addr
+= ATA_SECT_SIZE
* blks
;
834 u32
ata_low_level_rw_lba28(int dev
, u32 blknr
, lbaint_t blkcnt
,
835 const void *buffer
, int is_write
)
845 max_blks
= ATA_MAX_SECTORS
;
847 if (blks
> max_blks
) {
848 if (max_blks
!= dwc_ahsata_rw_cmd(dev
, start
,
849 max_blks
, addr
, is_write
))
853 addr
+= ATA_SECT_SIZE
* max_blks
;
855 if (blks
!= dwc_ahsata_rw_cmd(dev
, start
,
856 blks
, addr
, is_write
))
860 addr
+= ATA_SECT_SIZE
* blks
;
868 * SATA interface between low level driver and command layer
870 ulong
sata_read(int dev
, ulong blknr
, lbaint_t blkcnt
, void *buffer
)
874 if (sata_dev_desc
[dev
].lba48
)
875 rc
= ata_low_level_rw_lba48(dev
, blknr
, blkcnt
,
878 rc
= ata_low_level_rw_lba28(dev
, blknr
, blkcnt
,
883 ulong
sata_write(int dev
, ulong blknr
, lbaint_t blkcnt
, const void *buffer
)
886 struct ahci_probe_ent
*probe_ent
=
887 (struct ahci_probe_ent
*)sata_dev_desc
[dev
].priv
;
888 u32 flags
= probe_ent
->flags
;
890 if (sata_dev_desc
[dev
].lba48
) {
891 rc
= ata_low_level_rw_lba48(dev
, blknr
, blkcnt
,
893 if ((flags
& SATA_FLAG_WCACHE
) &&
894 (flags
& SATA_FLAG_FLUSH_EXT
))
895 dwc_ahsata_flush_cache_ext(dev
);
897 rc
= ata_low_level_rw_lba28(dev
, blknr
, blkcnt
,
899 if ((flags
& SATA_FLAG_WCACHE
) &&
900 (flags
& SATA_FLAG_FLUSH
))
901 dwc_ahsata_flush_cache(dev
);
906 int scan_sata(int dev
)
908 u8 serial
[ATA_ID_SERNO_LEN
+ 1] = { 0 };
909 u8 firmware
[ATA_ID_FW_REV_LEN
+ 1] = { 0 };
910 u8 product
[ATA_ID_PROD_LEN
+ 1] = { 0 };
913 struct ahci_probe_ent
*probe_ent
=
914 (struct ahci_probe_ent
*)sata_dev_desc
[dev
].priv
;
915 u8 port
= probe_ent
->hard_port_no
;
916 block_dev_desc_t
*pdev
= &(sata_dev_desc
[dev
]);
918 id
= (u16
*)memalign(ARCH_DMA_MINALIGN
,
919 roundup(ARCH_DMA_MINALIGN
,
920 (ATA_ID_WORDS
* 2)));
922 printf("id malloc failed\n\r");
926 /* Identify device to get information */
927 dwc_ahsata_identify(dev
, id
);
930 ata_id_c_string(id
, serial
, ATA_ID_SERNO
, sizeof(serial
));
931 memcpy(pdev
->product
, serial
, sizeof(serial
));
933 /* Firmware version */
934 ata_id_c_string(id
, firmware
, ATA_ID_FW_REV
, sizeof(firmware
));
935 memcpy(pdev
->revision
, firmware
, sizeof(firmware
));
938 ata_id_c_string(id
, product
, ATA_ID_PROD
, sizeof(product
));
939 memcpy(pdev
->vendor
, product
, sizeof(product
));
942 n_sectors
= ata_id_n_sectors(id
);
943 pdev
->lba
= (u32
)n_sectors
;
945 pdev
->type
= DEV_TYPE_HARDDISK
;
946 pdev
->blksz
= ATA_SECT_SIZE
;
949 /* Check if support LBA48 */
950 if (ata_id_has_lba48(id
)) {
952 debug("Device support LBA48\n\r");
955 /* Get the NCQ queue depth from device */
956 probe_ent
->flags
&= (~SATA_FLAG_Q_DEP_MASK
);
957 probe_ent
->flags
|= ata_id_queue_depth(id
);
959 /* Get the xfer mode from device */
960 dwc_ahsata_xfer_mode(dev
, id
);
962 /* Get the write cache status from device */
963 dwc_ahsata_init_wcache(dev
, id
);
965 /* Set the xfer mode to highest speed */
966 ahci_set_feature(dev
, port
);
970 dwc_ahsata_print_info(dev
);