2 * Copyright (C) Freescale Semiconductor, Inc. 2006.
3 * Author: Jason Jin<Jason.jin@freescale.com>
4 * Zhang Wei<wei.zhang@freescale.com>
6 * See file CREDITS for list of people who contributed to this
9 * This program is free software; you can redistribute it and/or
10 * modify it under the terms of the GNU General Public License as
11 * published by the Free Software Foundation; either version 2 of
12 * the License, or (at your option) any later version.
14 * This program is distributed in the hope that it will be useful,
15 * but WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 * GNU General Public License for more details.
19 * You should have received a copy of the GNU General Public License
20 * along with this program; if not, write to the Free Software
21 * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
24 * with the reference on libata and ahci drvier in kernel
31 #include <asm/processor.h>
32 #include <asm/errno.h>
37 #include <linux/ctype.h>
40 struct ahci_probe_ent *probe_ent = NULL;
41 hd_driveid_t *ataid[AHCI_MAX_PORTS];
43 #define writel_with_flush(a,b) do { writel(a,b); readl(b); } while (0)
46 * Some controllers limit number of blocks they can read/write at once.
47 * Contemporary SSD devices work much faster if the read/write size is aligned
48 * to a power of 2. Let's set default to 128 and allowing to be overwritten if
51 #ifndef MAX_SATA_BLOCKS_READ_WRITE
52 #define MAX_SATA_BLOCKS_READ_WRITE 0x80
55 static inline u32 ahci_port_base(u32 base, u32 port)
57 return base + 0x100 + (port * 0x80);
61 static void ahci_setup_port(struct ahci_ioports *port, unsigned long base,
62 unsigned int port_idx)
64 base = ahci_port_base(base, port_idx);
66 port->cmd_addr = base;
67 port->scr_addr = base + PORT_SCR;
71 #define msleep(a) udelay(a * 1000)
73 static int waiting_for_cmd_completed(volatile u8 *offset,
80 for (i = 0; ((status = readl(offset)) & sign) && i < timeout_msec; i++)
83 return (i < timeout_msec) ? 0 : -1;
87 static int ahci_host_init(struct ahci_probe_ent *probe_ent)
89 #ifndef CONFIG_SCSI_AHCI_PLAT
90 pci_dev_t pdev = probe_ent->dev;
92 unsigned short vendor;
94 volatile u8 *mmio = (volatile u8 *)probe_ent->mmio_base;
97 volatile u8 *port_mmio;
99 debug("ahci_host_init: start\n");
101 cap_save = readl(mmio + HOST_CAP);
102 cap_save &= ((1 << 28) | (1 << 17));
103 cap_save |= (1 << 27);
105 /* global controller reset */
106 tmp = readl(mmio + HOST_CTL);
107 if ((tmp & HOST_RESET) == 0)
108 writel_with_flush(tmp | HOST_RESET, mmio + HOST_CTL);
110 /* reset must complete within 1 second, or
111 * the hardware should be considered fried.
116 tmp = readl(mmio + HOST_CTL);
118 debug("controller reset failed (0x%x)\n", tmp);
121 } while (tmp & HOST_RESET);
123 writel_with_flush(HOST_AHCI_EN, mmio + HOST_CTL);
124 writel(cap_save, mmio + HOST_CAP);
125 writel_with_flush(0xf, mmio + HOST_PORTS_IMPL);
127 #ifndef CONFIG_SCSI_AHCI_PLAT
128 pci_read_config_word(pdev, PCI_VENDOR_ID, &vendor);
130 if (vendor == PCI_VENDOR_ID_INTEL) {
132 pci_read_config_word(pdev, 0x92, &tmp16);
134 pci_write_config_word(pdev, 0x92, tmp16);
137 probe_ent->cap = readl(mmio + HOST_CAP);
138 probe_ent->port_map = readl(mmio + HOST_PORTS_IMPL);
139 probe_ent->n_ports = (probe_ent->cap & 0x1f) + 1;
141 debug("cap 0x%x port_map 0x%x n_ports %d\n",
142 probe_ent->cap, probe_ent->port_map, probe_ent->n_ports);
144 if (probe_ent->n_ports > CONFIG_SYS_SCSI_MAX_SCSI_ID)
145 probe_ent->n_ports = CONFIG_SYS_SCSI_MAX_SCSI_ID;
147 for (i = 0; i < probe_ent->n_ports; i++) {
148 probe_ent->port[i].port_mmio = ahci_port_base((u32) mmio, i);
149 port_mmio = (u8 *) probe_ent->port[i].port_mmio;
150 ahci_setup_port(&probe_ent->port[i], (unsigned long)mmio, i);
152 /* make sure port is not active */
153 tmp = readl(port_mmio + PORT_CMD);
154 if (tmp & (PORT_CMD_LIST_ON | PORT_CMD_FIS_ON |
155 PORT_CMD_FIS_RX | PORT_CMD_START)) {
156 debug("Port %d is active. Deactivating.\n", i);
157 tmp &= ~(PORT_CMD_LIST_ON | PORT_CMD_FIS_ON |
158 PORT_CMD_FIS_RX | PORT_CMD_START);
159 writel_with_flush(tmp, port_mmio + PORT_CMD);
161 /* spec says 500 msecs for each bit, so
162 * this is slightly incorrect.
167 debug("Spinning up port %d... ", i);
168 writel(PORT_CMD_SPIN_UP, port_mmio + PORT_CMD);
172 tmp = readl(port_mmio + PORT_SCR_STAT);
173 if ((tmp & 0xf) == 0x3)
183 tmp = readl(port_mmio + PORT_SCR_ERR);
184 debug("PORT_SCR_ERR 0x%x\n", tmp);
185 writel(tmp, port_mmio + PORT_SCR_ERR);
187 /* ack any pending irq events for this port */
188 tmp = readl(port_mmio + PORT_IRQ_STAT);
189 debug("PORT_IRQ_STAT 0x%x\n", tmp);
191 writel(tmp, port_mmio + PORT_IRQ_STAT);
193 writel(1 << i, mmio + HOST_IRQ_STAT);
195 /* set irq mask (enables interrupts) */
196 writel(DEF_PORT_IRQ, port_mmio + PORT_IRQ_MASK);
198 /* register linkup ports */
199 tmp = readl(port_mmio + PORT_SCR_STAT);
200 debug("Port %d status: 0x%x\n", i, tmp);
201 if ((tmp & 0xf) == 0x03)
202 probe_ent->link_port_map |= (0x01 << i);
205 tmp = readl(mmio + HOST_CTL);
206 debug("HOST_CTL 0x%x\n", tmp);
207 writel(tmp | HOST_IRQ_EN, mmio + HOST_CTL);
208 tmp = readl(mmio + HOST_CTL);
209 debug("HOST_CTL 0x%x\n", tmp);
210 #ifndef CONFIG_SCSI_AHCI_PLAT
211 pci_read_config_word(pdev, PCI_COMMAND, &tmp16);
212 tmp |= PCI_COMMAND_MASTER;
213 pci_write_config_word(pdev, PCI_COMMAND, tmp16);
219 static void ahci_print_info(struct ahci_probe_ent *probe_ent)
221 #ifndef CONFIG_SCSI_AHCI_PLAT
222 pci_dev_t pdev = probe_ent->dev;
225 volatile u8 *mmio = (volatile u8 *)probe_ent->mmio_base;
226 u32 vers, cap, cap2, impl, speed;
230 vers = readl(mmio + HOST_VERSION);
231 cap = probe_ent->cap;
232 cap2 = readl(mmio + HOST_CAP2);
233 impl = probe_ent->port_map;
235 speed = (cap >> 20) & 0xf;
245 #ifdef CONFIG_SCSI_AHCI_PLAT
248 pci_read_config_word(pdev, 0x0a, &cc);
251 else if (cc == 0x0106)
253 else if (cc == 0x0104)
258 printf("AHCI %02x%02x.%02x%02x "
259 "%u slots %u ports %s Gbps 0x%x impl %s mode\n",
264 ((cap >> 8) & 0x1f) + 1, (cap & 0x1f) + 1, speed_s, impl, scc_s);
270 cap & (1 << 31) ? "64bit " : "",
271 cap & (1 << 30) ? "ncq " : "",
272 cap & (1 << 28) ? "ilck " : "",
273 cap & (1 << 27) ? "stag " : "",
274 cap & (1 << 26) ? "pm " : "",
275 cap & (1 << 25) ? "led " : "",
276 cap & (1 << 24) ? "clo " : "",
277 cap & (1 << 19) ? "nz " : "",
278 cap & (1 << 18) ? "only " : "",
279 cap & (1 << 17) ? "pmp " : "",
280 cap & (1 << 16) ? "fbss " : "",
281 cap & (1 << 15) ? "pio " : "",
282 cap & (1 << 14) ? "slum " : "",
283 cap & (1 << 13) ? "part " : "",
284 cap & (1 << 7) ? "ccc " : "",
285 cap & (1 << 6) ? "ems " : "",
286 cap & (1 << 5) ? "sxs " : "",
287 cap2 & (1 << 2) ? "apst " : "",
288 cap2 & (1 << 1) ? "nvmp " : "",
289 cap2 & (1 << 0) ? "boh " : "");
292 #ifndef CONFIG_SCSI_AHCI_PLAT
293 static int ahci_init_one(pci_dev_t pdev)
298 memset((void *)ataid, 0, sizeof(hd_driveid_t *) * AHCI_MAX_PORTS);
300 probe_ent = malloc(sizeof(struct ahci_probe_ent));
301 memset(probe_ent, 0, sizeof(struct ahci_probe_ent));
302 probe_ent->dev = pdev;
304 probe_ent->host_flags = ATA_FLAG_SATA
309 probe_ent->pio_mask = 0x1f;
310 probe_ent->udma_mask = 0x7f; /*Fixme,assume to support UDMA6 */
312 pci_read_config_dword(pdev, PCI_BASE_ADDRESS_5, &probe_ent->mmio_base);
313 debug("ahci mmio_base=0x%08x\n", probe_ent->mmio_base);
316 * JMicron-specific fixup:
317 * make sure we're in AHCI mode
319 pci_read_config_word(pdev, PCI_VENDOR_ID, &vendor);
320 if (vendor == 0x197b)
321 pci_write_config_byte(pdev, 0x41, 0xa1);
323 /* initialize adapter */
324 rc = ahci_host_init(probe_ent);
328 ahci_print_info(probe_ent);
337 #define MAX_DATA_BYTE_COUNT (4*1024*1024)
339 static int ahci_fill_sg(u8 port, unsigned char *buf, int buf_len)
341 struct ahci_ioports *pp = &(probe_ent->port[port]);
342 struct ahci_sg *ahci_sg = pp->cmd_tbl_sg;
346 sg_count = ((buf_len - 1) / MAX_DATA_BYTE_COUNT) + 1;
347 if (sg_count > AHCI_MAX_SG) {
348 printf("Error:Too much sg!\n");
352 for (i = 0; i < sg_count; i++) {
354 cpu_to_le32((u32) buf + i * MAX_DATA_BYTE_COUNT);
355 ahci_sg->addr_hi = 0;
356 ahci_sg->flags_size = cpu_to_le32(0x3fffff &
357 (buf_len < MAX_DATA_BYTE_COUNT
359 : (MAX_DATA_BYTE_COUNT - 1)));
361 buf_len -= MAX_DATA_BYTE_COUNT;
368 static void ahci_fill_cmd_slot(struct ahci_ioports *pp, u32 opts)
370 pp->cmd_slot->opts = cpu_to_le32(opts);
371 pp->cmd_slot->status = 0;
372 pp->cmd_slot->tbl_addr = cpu_to_le32(pp->cmd_tbl & 0xffffffff);
373 pp->cmd_slot->tbl_addr_hi = 0;
377 #ifdef CONFIG_AHCI_SETFEATURES_XFER
378 static void ahci_set_feature(u8 port)
380 struct ahci_ioports *pp = &(probe_ent->port[port]);
381 volatile u8 *port_mmio = (volatile u8 *)pp->port_mmio;
382 u32 cmd_fis_len = 5; /* five dwords */
389 fis[2] = ATA_CMD_SETF;
390 fis[3] = SETFEATURES_XFER;
391 fis[12] = __ilog2(probe_ent->udma_mask + 1) + 0x40 - 0x01;
393 memcpy((unsigned char *)pp->cmd_tbl, fis, 20);
394 ahci_fill_cmd_slot(pp, cmd_fis_len);
395 writel(1, port_mmio + PORT_CMD_ISSUE);
396 readl(port_mmio + PORT_CMD_ISSUE);
398 if (waiting_for_cmd_completed(port_mmio + PORT_CMD_ISSUE, 150, 0x1)) {
399 printf("set feature error on port %d!\n", port);
405 static int ahci_port_start(u8 port)
407 struct ahci_ioports *pp = &(probe_ent->port[port]);
408 volatile u8 *port_mmio = (volatile u8 *)pp->port_mmio;
412 debug("Enter start port: %d\n", port);
413 port_status = readl(port_mmio + PORT_SCR_STAT);
414 debug("Port %d status: %x\n", port, port_status);
415 if ((port_status & 0xf) != 0x03) {
416 printf("No Link on this port!\n");
420 mem = (u32) malloc(AHCI_PORT_PRIV_DMA_SZ + 2048);
423 printf("No mem for table!\n");
427 mem = (mem + 0x800) & (~0x7ff); /* Aligned to 2048-bytes */
428 memset((u8 *) mem, 0, AHCI_PORT_PRIV_DMA_SZ);
431 * First item in chunk of DMA memory: 32-slot command table,
432 * 32 bytes each in size
434 pp->cmd_slot = (struct ahci_cmd_hdr *)mem;
435 debug("cmd_slot = 0x%x\n", (unsigned)pp->cmd_slot);
436 mem += (AHCI_CMD_SLOT_SZ + 224);
439 * Second item: Received-FIS area
442 mem += AHCI_RX_FIS_SZ;
445 * Third item: data area for storing a single command
446 * and its scatter-gather table
449 debug("cmd_tbl_dma = 0x%x\n", pp->cmd_tbl);
451 mem += AHCI_CMD_TBL_HDR;
452 pp->cmd_tbl_sg = (struct ahci_sg *)mem;
454 writel_with_flush((u32) pp->cmd_slot, port_mmio + PORT_LST_ADDR);
456 writel_with_flush(pp->rx_fis, port_mmio + PORT_FIS_ADDR);
458 writel_with_flush(PORT_CMD_ICC_ACTIVE | PORT_CMD_FIS_RX |
459 PORT_CMD_POWER_ON | PORT_CMD_SPIN_UP |
460 PORT_CMD_START, port_mmio + PORT_CMD);
462 debug("Exit start port %d\n", port);
468 static int ahci_device_data_io(u8 port, u8 *fis, int fis_len, u8 *buf,
469 int buf_len, u8 is_write)
472 struct ahci_ioports *pp = &(probe_ent->port[port]);
473 volatile u8 *port_mmio = (volatile u8 *)pp->port_mmio;
478 debug("Enter %s: for port %d\n", __func__, port);
480 if (port > probe_ent->n_ports) {
481 printf("Invaild port number %d\n", port);
485 port_status = readl(port_mmio + PORT_SCR_STAT);
486 if ((port_status & 0xf) != 0x03) {
487 debug("No Link on port %d!\n", port);
491 memcpy((unsigned char *)pp->cmd_tbl, fis, fis_len);
493 sg_count = ahci_fill_sg(port, buf, buf_len);
494 opts = (fis_len >> 2) | (sg_count << 16) | (is_write << 6);
495 ahci_fill_cmd_slot(pp, opts);
497 writel_with_flush(1, port_mmio + PORT_CMD_ISSUE);
499 if (waiting_for_cmd_completed(port_mmio + PORT_CMD_ISSUE, 150, 0x1)) {
500 printf("timeout exit!\n");
503 debug("%s: %d byte transferred.\n", __func__, pp->cmd_slot->status);
509 static char *ata_id_strcpy(u16 *target, u16 *src, int len)
512 for (i = 0; i < len / 2; i++)
513 target[i] = swab16(src[i]);
514 return (char *)target;
518 static void dump_ataid(hd_driveid_t *ataid)
520 debug("(49)ataid->capability = 0x%x\n", ataid->capability);
521 debug("(53)ataid->field_valid =0x%x\n", ataid->field_valid);
522 debug("(63)ataid->dma_mword = 0x%x\n", ataid->dma_mword);
523 debug("(64)ataid->eide_pio_modes = 0x%x\n", ataid->eide_pio_modes);
524 debug("(75)ataid->queue_depth = 0x%x\n", ataid->queue_depth);
525 debug("(80)ataid->major_rev_num = 0x%x\n", ataid->major_rev_num);
526 debug("(81)ataid->minor_rev_num = 0x%x\n", ataid->minor_rev_num);
527 debug("(82)ataid->command_set_1 = 0x%x\n", ataid->command_set_1);
528 debug("(83)ataid->command_set_2 = 0x%x\n", ataid->command_set_2);
529 debug("(84)ataid->cfsse = 0x%x\n", ataid->cfsse);
530 debug("(85)ataid->cfs_enable_1 = 0x%x\n", ataid->cfs_enable_1);
531 debug("(86)ataid->cfs_enable_2 = 0x%x\n", ataid->cfs_enable_2);
532 debug("(87)ataid->csf_default = 0x%x\n", ataid->csf_default);
533 debug("(88)ataid->dma_ultra = 0x%x\n", ataid->dma_ultra);
534 debug("(93)ataid->hw_config = 0x%x\n", ataid->hw_config);
539 * SCSI INQUIRY command operation.
541 static int ata_scsiop_inquiry(ccb *pccb)
546 0x5, /* claim SPC-3 version compatibility */
554 /* Clean ccb data buffer */
555 memset(pccb->pdata, 0, pccb->datalen);
557 memcpy(pccb->pdata, hdr, sizeof(hdr));
559 if (pccb->datalen <= 35)
563 /* Construct the FIS */
564 fis[0] = 0x27; /* Host to device FIS. */
565 fis[1] = 1 << 7; /* Command FIS. */
566 fis[2] = ATA_CMD_IDENT; /* Command byte. */
568 /* Read id from sata */
570 if (!(tmpid = malloc(sizeof(hd_driveid_t))))
573 if (ahci_device_data_io(port, (u8 *) &fis, 20, tmpid,
574 sizeof(hd_driveid_t), 0)) {
575 debug("scsi_ahci: SCSI inquiry command failure.\n");
581 ataid[port] = (hd_driveid_t *) tmpid;
583 memcpy(&pccb->pdata[8], "ATA ", 8);
584 ata_id_strcpy((u16 *) &pccb->pdata[16], (u16 *)ataid[port]->model, 16);
585 ata_id_strcpy((u16 *) &pccb->pdata[32], (u16 *)ataid[port]->fw_rev, 4);
587 dump_ataid(ataid[port]);
593 * SCSI READ10/WRITE10 command operation.
595 static int ata_scsiop_read_write(ccb *pccb, u8 is_write)
600 u8 *user_buffer = pccb->pdata;
601 u32 user_buffer_size = pccb->datalen;
603 /* Retrieve the base LBA number from the ccb structure. */
604 memcpy(&lba, pccb->cmd + 2, sizeof(lba));
605 lba = be32_to_cpu(lba);
608 * And the number of blocks.
610 * For 10-byte and 16-byte SCSI R/W commands, transfer
611 * length 0 means transfer 0 block of data.
612 * However, for ATA R/W commands, sector count 0 means
613 * 256 or 65536 sectors, not 0 sectors as in SCSI.
615 * WARNING: one or two older ATA drives treat 0 as 0...
617 blocks = (((u16)pccb->cmd[7]) << 8) | ((u16) pccb->cmd[8]);
619 debug("scsi_ahci: %s %d blocks starting from lba 0x%x\n",
620 is_write ? "write" : "read", (unsigned)lba, blocks);
624 fis[0] = 0x27; /* Host to device FIS. */
625 fis[1] = 1 << 7; /* Command FIS. */
626 /* Command byte (read/write). */
627 fis[2] = is_write ? ATA_CMD_WR_DMA : ATA_CMD_RD_DMA;
630 u16 now_blocks; /* number of blocks per iteration */
631 u32 transfer_size; /* number of bytes per iteration */
633 now_blocks = min(MAX_SATA_BLOCKS_READ_WRITE, blocks);
635 transfer_size = ATA_BLOCKSIZE * now_blocks;
636 if (transfer_size > user_buffer_size) {
637 printf("scsi_ahci: Error: buffer too small.\n");
641 /* LBA address, only support LBA28 in this driver */
642 fis[4] = (lba >> 0) & 0xff;
643 fis[5] = (lba >> 8) & 0xff;
644 fis[6] = (lba >> 16) & 0xff;
645 fis[7] = ((lba >> 24) & 0xf) | 0xe0;
647 /* Block (sector) count */
648 fis[12] = (now_blocks >> 0) & 0xff;
649 fis[13] = (now_blocks >> 8) & 0xff;
651 /* Read/Write from ahci */
652 if (ahci_device_data_io(pccb->target, (u8 *) &fis, sizeof(fis),
653 user_buffer, user_buffer_size,
655 debug("scsi_ahci: SCSI %s10 command failure.\n",
656 is_write ? "WRITE" : "READ");
659 user_buffer += transfer_size;
660 user_buffer_size -= transfer_size;
661 blocks -= now_blocks;
670 * SCSI READ CAPACITY10 command operation.
672 static int ata_scsiop_read_capacity10(ccb *pccb)
677 if (!ataid[pccb->target]) {
678 printf("scsi_ahci: SCSI READ CAPACITY10 command failure. "
680 "\tPlease run SCSI commmand INQUIRY firstly!\n");
684 cap = le32_to_cpu(ataid[pccb->target]->lba_capacity);
685 if (cap == 0xfffffff) {
686 unsigned short *cap48 = ataid[pccb->target]->lba48_capacity;
687 if (cap48[2] || cap48[3]) {
690 cap = (le16_to_cpu(cap48[1]) << 16) |
691 (le16_to_cpu(cap48[0]));
695 cap = cpu_to_be32(cap);
696 memcpy(pccb->pdata, &cap, sizeof(cap));
698 block_size = cpu_to_be32((u32)512);
699 memcpy(&pccb->pdata[4], &block_size, 4);
706 * SCSI READ CAPACITY16 command operation.
708 static int ata_scsiop_read_capacity16(ccb *pccb)
713 if (!ataid[pccb->target]) {
714 printf("scsi_ahci: SCSI READ CAPACITY16 command failure. "
716 "\tPlease run SCSI commmand INQUIRY firstly!\n");
720 cap = le32_to_cpu(ataid[pccb->target]->lba_capacity);
721 if (cap == 0xfffffff) {
722 memcpy(&cap, ataid[pccb->target]->lba48_capacity, sizeof(cap));
723 cap = le64_to_cpu(cap);
726 cap = cpu_to_be64(cap);
727 memcpy(pccb->pdata, &cap, sizeof(cap));
729 block_size = cpu_to_be64((u64)512);
730 memcpy(&pccb->pdata[8], &block_size, 8);
737 * SCSI TEST UNIT READY command operation.
739 static int ata_scsiop_test_unit_ready(ccb *pccb)
741 return (ataid[pccb->target]) ? 0 : -EPERM;
745 int scsi_exec(ccb *pccb)
749 switch (pccb->cmd[0]) {
751 ret = ata_scsiop_read_write(pccb, 0);
754 ret = ata_scsiop_read_write(pccb, 1);
756 case SCSI_RD_CAPAC10:
757 ret = ata_scsiop_read_capacity10(pccb);
759 case SCSI_RD_CAPAC16:
760 ret = ata_scsiop_read_capacity16(pccb);
763 ret = ata_scsiop_test_unit_ready(pccb);
766 ret = ata_scsiop_inquiry(pccb);
769 printf("Unsupport SCSI command 0x%02x\n", pccb->cmd[0]);
774 debug("SCSI command 0x%02x ret errno %d\n", pccb->cmd[0], ret);
782 void scsi_low_level_init(int busdevfunc)
787 #ifndef CONFIG_SCSI_AHCI_PLAT
788 ahci_init_one(busdevfunc);
791 linkmap = probe_ent->link_port_map;
793 for (i = 0; i < CONFIG_SYS_SCSI_MAX_SCSI_ID; i++) {
794 if (((linkmap >> i) & 0x01)) {
795 if (ahci_port_start((u8) i)) {
796 printf("Can not start port %d\n", i);
799 #ifdef CONFIG_AHCI_SETFEATURES_XFER
800 ahci_set_feature((u8) i);
806 #ifdef CONFIG_SCSI_AHCI_PLAT
807 int ahci_init(u32 base)
812 memset(ataid, 0, sizeof(ataid));
814 probe_ent = malloc(sizeof(struct ahci_probe_ent));
815 memset(probe_ent, 0, sizeof(struct ahci_probe_ent));
817 probe_ent->host_flags = ATA_FLAG_SATA
822 probe_ent->pio_mask = 0x1f;
823 probe_ent->udma_mask = 0x7f; /*Fixme,assume to support UDMA6 */
825 probe_ent->mmio_base = base;
827 /* initialize adapter */
828 rc = ahci_host_init(probe_ent);
832 ahci_print_info(probe_ent);
834 linkmap = probe_ent->link_port_map;
836 for (i = 0; i < CONFIG_SYS_SCSI_MAX_SCSI_ID; i++) {
837 if (((linkmap >> i) & 0x01)) {
838 if (ahci_port_start((u8) i)) {
839 printf("Can not start port %d\n", i);
842 #ifdef CONFIG_AHCI_SETFEATURES_XFER
843 ahci_set_feature((u8) i);
852 void scsi_bus_reset(void)
858 void scsi_print_error(ccb * pccb)
860 /*The ahci error info can be read in the ahci driver*/