2 * Copyright (C) Procsys. All rights reserved.
3 * Author: Mushtaq Khan <mushtaq_k@procsys.com>
4 * <mushtaqk_921@yahoo.co.in>
6 * This program is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU General Public License as
8 * published by the Free Software Foundation; either version 2 of
9 * the License, or (at your option) any later version.
11 * This program is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 * GNU General Public License for more details.
16 * You should have received a copy of the GNU General Public License
17 * along with this program; if not, write to the Free Software
18 * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
21 * with the reference to ata_piix driver in kernel 2.4.32
25 * This file contains SATA controller and SATA drive initialization functions
33 #include <asm/byteorder.h>
38 extern block_dev_desc_t sata_dev_desc[CONFIG_SYS_SATA_MAX_DEVICE];
39 extern int sata_curr_device;
41 #define DEBUG_SATA 0 /*For debug prints set DEBUG_SATA to 1 */
44 #define DRV_DECL /*For file specific declarations */
47 /*Macros realted to PCI*/
48 #define PCI_SATA_BUS 0x00
49 #define PCI_SATA_DEV 0x1f
50 #define PCI_SATA_FUNC 0x02
52 #define PCI_SATA_BASE1 0x10
53 #define PCI_SATA_BASE2 0x14
54 #define PCI_SATA_BASE3 0x18
55 #define PCI_SATA_BASE4 0x1c
56 #define PCI_SATA_BASE5 0x20
60 #define PCI_DMA_CTL 0x48
62 #define PORT_PRESENT (1<<0)
63 #define PORT_ENABLED (1<<4)
66 u32 iobase1 = 0; /*Primary cmd block */
67 u32 iobase2 = 0; /*Primary ctl block */
68 u32 iobase3 = 0; /*Sec cmd block */
69 u32 iobase4 = 0; /*sec ctl block */
70 u32 iobase5 = 0; /*BMDMA*/
74 u32 bus = PCI_SATA_BUS;
75 u32 dev = PCI_SATA_DEV;
76 u32 fun = PCI_SATA_FUNC;
78 u8 lat = 0, pcibios_max_latency = 0xff;
79 u8 pmr; /*Port mapping reg */
80 u8 pi; /*Prgming Interface reg */
82 bdf = PCI_BDF (bus, dev, fun);
83 pci_read_config_dword (bdf, PCI_SATA_BASE1, &iobase1);
84 pci_read_config_dword (bdf, PCI_SATA_BASE2, &iobase2);
85 pci_read_config_dword (bdf, PCI_SATA_BASE3, &iobase3);
86 pci_read_config_dword (bdf, PCI_SATA_BASE4, &iobase4);
87 pci_read_config_dword (bdf, PCI_SATA_BASE5, &iobase5);
89 if ((iobase1 == 0xFFFFFFFF) || (iobase2 == 0xFFFFFFFF) ||
90 (iobase3 == 0xFFFFFFFF) || (iobase4 == 0xFFFFFFFF) ||
91 (iobase5 == 0xFFFFFFFF)) {
92 printf ("error no base addr for SATA controller\n");
96 iobase1 &= 0xFFFFFFFE;
97 iobase2 &= 0xFFFFFFFE;
98 iobase3 &= 0xFFFFFFFE;
99 iobase4 &= 0xFFFFFFFE;
100 iobase5 &= 0xFFFFFFFE;
103 pci_read_config_byte (bdf, PCI_PMR, &pmr);
105 printf ("combined mode not supported\n");
109 pci_read_config_byte (bdf, PCI_PI, &pi);
110 if ((pi & 0x05) != 0x05) {
111 printf ("Sata is in Legacy mode\n");
114 printf ("sata is in Native mode\n");
117 /*MASTER CFG AND IO CFG */
118 pci_read_config_word (bdf, PCI_COMMAND, &cmd);
119 cmd |= PCI_COMMAND_MASTER | PCI_COMMAND_IO;
120 pci_write_config_word (bdf, PCI_COMMAND, cmd);
121 pci_read_config_byte (dev, PCI_LATENCY_TIMER, &lat);
124 lat = (64 <= pcibios_max_latency) ? 64 : pcibios_max_latency;
125 else if (lat > pcibios_max_latency)
126 lat = pcibios_max_latency;
127 pci_write_config_byte (dev, PCI_LATENCY_TIMER, lat);
133 sata_bus_probe (int port_no)
138 mask = (PORT_PRESENT << port_no);
139 pci_read_config_word (bdf, PCI_PCS, &pcs);
140 orig_mask = (int) pcs & 0xff;
141 if ((orig_mask & mask) != mask)
158 rv = pci_sata_init ();
160 printf ("pci initialization failed\n");
165 port[0].ioaddr.cmd_addr = iobase1;
166 port[0].ioaddr.altstatus_addr = port[0].ioaddr.ctl_addr =
167 iobase2 | ATA_PCI_CTL_OFS;
168 port[0].ioaddr.bmdma_addr = iobase5;
171 port[1].ioaddr.cmd_addr = iobase3;
172 port[1].ioaddr.altstatus_addr = port[1].ioaddr.ctl_addr =
173 iobase4 | ATA_PCI_CTL_OFS;
174 port[1].ioaddr.bmdma_addr = iobase5 + 0x8;
176 for (i = 0; i < CONFIG_SYS_SATA_MAXBUS; i++)
177 sata_port (&port[i].ioaddr);
179 for (i = 0; i < CONFIG_SYS_SATA_MAXBUS; i++) {
180 if (!(sata_bus_probe (i))) {
181 port[i].port_state = 0;
182 printf ("SATA#%d port is not present \n", i);
184 printf ("SATA#%d port is present\n", i);
185 if (sata_bus_softreset (i)) {
186 port[i].port_state = 0;
188 port[i].port_state = 1;
193 for (i = 0; i < CONFIG_SYS_SATA_MAXBUS; i++) {
196 if (port[i].port_state == 0)
198 for (j = 0; j < CONFIG_SYS_SATA_DEVS_PER_BUS; j++) {
199 sata_identify (i, j);
200 set_Feature_cmd (i, j);
201 devno = i * CONFIG_SYS_SATA_DEVS_PER_BUS + j;
202 if ((sata_dev_desc[devno].lba > 0) &&
203 (sata_dev_desc[devno].blksz > 0)) {
204 dev_print (&sata_dev_desc[devno]);
205 /* initialize partition type */
206 init_part (&sata_dev_desc[devno]);
207 if (sata_curr_device < 0)
209 i * CONFIG_SYS_SATA_DEVS_PER_BUS + j;
217 sata_inb (unsigned long ioaddr)
222 static void __inline__
223 sata_outb (unsigned char val, unsigned long ioaddr)
229 output_data (struct sata_ioports *ioaddr, ulong * sect_buf, int words)
231 outsw (ioaddr->data_addr, sect_buf, words << 1);
235 input_data (struct sata_ioports *ioaddr, ulong * sect_buf, int words)
237 insw (ioaddr->data_addr, sect_buf, words << 1);
242 sata_cpy (unsigned char *dst, unsigned char *src, unsigned int len)
244 unsigned char *end, *last;
249 /* reserve space for '\0' */
253 /* skip leading white space */
254 while ((*src) && (src < end) && (*src == ' '))
257 /* copy string, omitting trailing white space */
258 while ((*src) && (src < end)) {
268 sata_bus_softreset (int num)
270 u8 dev = 0, status = 0, i;
272 port[num].dev_mask = 0;
274 for (i = 0; i < CONFIG_SYS_SATA_DEVS_PER_BUS; i++) {
275 if (!(sata_devchk (&port[num].ioaddr, i))) {
276 PRINTF ("dev_chk failed for dev#%d\n", i);
278 port[num].dev_mask |= (1 << i);
279 PRINTF ("dev_chk passed for dev#%d\n", i);
283 if (!(port[num].dev_mask)) {
284 printf ("no devices on port%d\n", num);
288 dev_select (&port[num].ioaddr, dev);
290 port[num].ctl_reg = 0x08; /*Default value of control reg */
291 sata_outb (port[num].ctl_reg, port[num].ioaddr.ctl_addr);
293 sata_outb (port[num].ctl_reg | ATA_SRST, port[num].ioaddr.ctl_addr);
295 sata_outb (port[num].ctl_reg, port[num].ioaddr.ctl_addr);
297 /* spec mandates ">= 2ms" before checking status.
298 * We wait 150ms, because that was the magic delay used for
299 * ATAPI devices in Hale Landis's ATADRVR, for the period of time
300 * between when the ATA command register is written, and then
301 * status is checked. Because waiting for "a while" before
302 * checking status is fine, post SRST, we perform this magic
303 * delay here as well.
306 status = sata_busy_wait (&port[num].ioaddr, ATA_BUSY, 300);
307 while ((status & ATA_BUSY)) {
309 status = sata_busy_wait (&port[num].ioaddr, ATA_BUSY, 3);
312 if (status & ATA_BUSY)
313 printf ("ata%u is slow to respond,plz be patient\n", num);
315 while ((status & ATA_BUSY)) {
317 status = sata_chk_status (&port[num].ioaddr);
320 if (status & ATA_BUSY) {
321 printf ("ata%u failed to respond : ", num);
322 printf ("bus reset failed\n");
329 sata_identify (int num, int dev)
331 u8 cmd = 0, status = 0, devno = num * CONFIG_SYS_SATA_DEVS_PER_BUS + dev;
332 u16 iobuf[ATA_SECT_SIZE];
336 memset (iobuf, 0, sizeof (iobuf));
337 hd_driveid_t *iop = (hd_driveid_t *) iobuf;
344 if (!(port[num].dev_mask & mask)) {
345 printf ("dev%d is not present on port#%d\n", dev, num);
349 printf ("port=%d dev=%d\n", num, dev);
351 dev_select (&port[num].ioaddr, dev);
354 cmd = ATA_CMD_IDENT; /*Device Identify Command */
355 sata_outb (cmd, port[num].ioaddr.command_addr);
356 sata_inb (port[num].ioaddr.altstatus_addr);
359 status = sata_busy_wait (&port[num].ioaddr, ATA_BUSY, 1000);
360 if (status & ATA_ERR) {
361 printf ("\ndevice not responding\n");
362 port[num].dev_mask &= ~mask;
366 input_data (&port[num].ioaddr, (ulong *) iobuf, ATA_SECTORWORDS);
368 PRINTF ("\nata%u: dev %u cfg 49:%04x 82:%04x 83:%04x 84:%04x85:%04x"
369 "86:%04x" "87:%04x 88:%04x\n", num, dev, iobuf[49],
370 iobuf[82], iobuf[83], iobuf[84], iobuf[85], iobuf[86],
371 iobuf[87], iobuf[88]);
373 /* we require LBA and DMA support (bits 8 & 9 of word 49) */
374 if (!ata_id_has_dma (iobuf) || !ata_id_has_lba (iobuf)) {
375 PRINTF ("ata%u: no dma/lba\n", num);
379 if (ata_id_has_lba48 (iobuf)) {
380 n_sectors = ata_id_u64 (iobuf, 100);
382 n_sectors = ata_id_u32 (iobuf, 60);
384 PRINTF ("no. of sectors %u\n", ata_id_u64 (iobuf, 100));
385 PRINTF ("no. of sectors %u\n", ata_id_u32 (iobuf, 60));
387 if (n_sectors == 0) {
388 port[num].dev_mask &= ~mask;
392 sata_cpy ((unsigned char *)sata_dev_desc[devno].revision, iop->fw_rev,
393 sizeof (sata_dev_desc[devno].revision));
394 sata_cpy ((unsigned char *)sata_dev_desc[devno].vendor, iop->model,
395 sizeof (sata_dev_desc[devno].vendor));
396 sata_cpy ((unsigned char *)sata_dev_desc[devno].product, iop->serial_no,
397 sizeof (sata_dev_desc[devno].product));
398 strswab (sata_dev_desc[devno].revision);
399 strswab (sata_dev_desc[devno].vendor);
401 if ((iop->config & 0x0080) == 0x0080) {
402 sata_dev_desc[devno].removable = 1;
404 sata_dev_desc[devno].removable = 0;
407 sata_dev_desc[devno].lba = iop->lba_capacity;
408 PRINTF ("lba=0x%x", sata_dev_desc[devno].lba);
411 if (iop->command_set_2 & 0x0400) {
412 sata_dev_desc[devno].lba48 = 1;
413 lba = (unsigned long long) iop->lba48_capacity[0] |
414 ((unsigned long long) iop->lba48_capacity[1] << 16) |
415 ((unsigned long long) iop->lba48_capacity[2] << 32) |
416 ((unsigned long long) iop->lba48_capacity[3] << 48);
418 sata_dev_desc[devno].lba48 = 0;
423 sata_dev_desc[devno].type = DEV_TYPE_HARDDISK;
424 sata_dev_desc[devno].blksz = ATA_BLOCKSIZE;
425 sata_dev_desc[devno].lun = 0; /* just to fill something in... */
429 set_Feature_cmd (int num, int dev)
431 u8 mask = 0x00, status = 0;
438 if (!(port[num].dev_mask & mask)) {
439 PRINTF ("dev%d is not present on port#%d\n", dev, num);
443 dev_select (&port[num].ioaddr, dev);
445 sata_outb (SETFEATURES_XFER, port[num].ioaddr.feature_addr);
446 sata_outb (XFER_PIO_4, port[num].ioaddr.nsect_addr);
447 sata_outb (0, port[num].ioaddr.lbal_addr);
448 sata_outb (0, port[num].ioaddr.lbam_addr);
449 sata_outb (0, port[num].ioaddr.lbah_addr);
451 sata_outb (ATA_DEVICE_OBS, port[num].ioaddr.device_addr);
452 sata_outb (ATA_CMD_SETF, port[num].ioaddr.command_addr);
457 status = sata_busy_wait (&port[num].ioaddr, ATA_BUSY, 5000);
458 if ((status & (ATA_STAT_BUSY | ATA_STAT_ERR))) {
459 printf ("Error : status 0x%02x\n", status);
460 port[num].dev_mask &= ~mask;
465 sata_port (struct sata_ioports *ioport)
467 ioport->data_addr = ioport->cmd_addr + ATA_REG_DATA;
468 ioport->error_addr = ioport->cmd_addr + ATA_REG_ERR;
469 ioport->feature_addr = ioport->cmd_addr + ATA_REG_FEATURE;
470 ioport->nsect_addr = ioport->cmd_addr + ATA_REG_NSECT;
471 ioport->lbal_addr = ioport->cmd_addr + ATA_REG_LBAL;
472 ioport->lbam_addr = ioport->cmd_addr + ATA_REG_LBAM;
473 ioport->lbah_addr = ioport->cmd_addr + ATA_REG_LBAH;
474 ioport->device_addr = ioport->cmd_addr + ATA_REG_DEVICE;
475 ioport->status_addr = ioport->cmd_addr + ATA_REG_STATUS;
476 ioport->command_addr = ioport->cmd_addr + ATA_REG_CMD;
480 sata_devchk (struct sata_ioports *ioaddr, int dev)
484 dev_select (ioaddr, dev);
486 sata_outb (0x55, ioaddr->nsect_addr);
487 sata_outb (0xaa, ioaddr->lbal_addr);
489 sata_outb (0xaa, ioaddr->nsect_addr);
490 sata_outb (0x55, ioaddr->lbal_addr);
492 sata_outb (0x55, ioaddr->nsect_addr);
493 sata_outb (0xaa, ioaddr->lbal_addr);
495 nsect = sata_inb (ioaddr->nsect_addr);
496 lbal = sata_inb (ioaddr->lbal_addr);
498 if ((nsect == 0x55) && (lbal == 0xaa))
499 return 1; /* we found a device */
501 return 0; /* nothing found */
505 dev_select (struct sata_ioports *ioaddr, int dev)
510 tmp = ATA_DEVICE_OBS;
512 tmp = ATA_DEVICE_OBS | ATA_DEV1;
514 sata_outb (tmp, ioaddr->device_addr);
515 sata_inb (ioaddr->altstatus_addr);
520 sata_busy_wait (struct sata_ioports *ioaddr, int bits, unsigned int max)
526 status = sata_chk_status (ioaddr);
528 } while ((status & bits) && (max > 0));
534 sata_chk_status (struct sata_ioports * ioaddr)
536 return sata_inb (ioaddr->status_addr);
544 for (i = 0; i < count; i++)
549 sata_read (int device, ulong blknr,lbaint_t blkcnt, void * buff)
551 ulong n = 0, *buffer = (ulong *)buff;
552 u8 dev = 0, num = 0, mask = 0, status = 0;
555 unsigned char lba48 = 0;
557 if (blknr & 0x0000fffff0000000) {
558 if (!sata_dev_desc[devno].lba48) {
559 printf ("Drive doesn't support 48-bit addressing\n");
562 /* more than 28 bits used, use 48bit mode */
567 num = device / CONFIG_SYS_SATA_DEVS_PER_BUS;
569 if (device >= CONFIG_SYS_SATA_DEVS_PER_BUS)
570 dev = device - CONFIG_SYS_SATA_DEVS_PER_BUS;
579 if (!(port[num].dev_mask & mask)) {
580 printf ("dev%d is not present on port#%d\n", dev, num);
585 dev_select (&port[num].ioaddr, dev);
587 status = sata_busy_wait (&port[num].ioaddr, ATA_BUSY, 500);
588 if (status & ATA_BUSY) {
589 printf ("ata%u failed to respond\n", port[num].port_no);
592 while (blkcnt-- > 0) {
593 status = sata_busy_wait (&port[num].ioaddr, ATA_BUSY, 500);
594 if (status & ATA_BUSY) {
595 printf ("ata%u failed to respond\n", 0);
600 /* write high bits */
601 sata_outb (0, port[num].ioaddr.nsect_addr);
602 sata_outb ((blknr >> 24) & 0xFF,
603 port[num].ioaddr.lbal_addr);
604 sata_outb ((blknr >> 32) & 0xFF,
605 port[num].ioaddr.lbam_addr);
606 sata_outb ((blknr >> 40) & 0xFF,
607 port[num].ioaddr.lbah_addr);
610 sata_outb (1, port[num].ioaddr.nsect_addr);
611 sata_outb (((blknr) >> 0) & 0xFF,
612 port[num].ioaddr.lbal_addr);
613 sata_outb ((blknr >> 8) & 0xFF, port[num].ioaddr.lbam_addr);
614 sata_outb ((blknr >> 16) & 0xFF, port[num].ioaddr.lbah_addr);
618 sata_outb (ATA_LBA, port[num].ioaddr.device_addr);
619 sata_outb (ATA_CMD_READ_EXT,
620 port[num].ioaddr.command_addr);
624 sata_outb (ATA_LBA | ((blknr >> 24) & 0xF),
625 port[num].ioaddr.device_addr);
626 sata_outb (ATA_CMD_READ,
627 port[num].ioaddr.command_addr);
631 /*may take up to 4 sec */
632 status = sata_busy_wait (&port[num].ioaddr, ATA_BUSY, 4000);
634 if ((status & (ATA_STAT_DRQ | ATA_STAT_BUSY | ATA_STAT_ERR))
638 printf ("Error no DRQ dev %d blk %ld: sts 0x%02x\n",
639 device, (ulong) blknr, status);
640 err = sata_inb (port[num].ioaddr.error_addr);
641 printf ("Error reg = 0x%x\n", err);
644 input_data (&port[num].ioaddr, buffer, ATA_SECTORWORDS);
645 sata_inb (port[num].ioaddr.altstatus_addr);
650 buffer += ATA_SECTORWORDS;
656 sata_write (int device, ulong blknr,lbaint_t blkcnt, void * buff)
658 ulong n = 0, *buffer = (ulong *)buff;
659 unsigned char status = 0, num = 0, dev = 0, mask = 0;
662 unsigned char lba48 = 0;
664 if (blknr & 0x0000fffff0000000) {
665 if (!sata_dev_desc[devno].lba48) {
666 printf ("Drive doesn't support 48-bit addressing\n");
669 /* more than 28 bits used, use 48bit mode */
674 num = device / CONFIG_SYS_SATA_DEVS_PER_BUS;
676 if (device >= CONFIG_SYS_SATA_DEVS_PER_BUS)
677 dev = device - CONFIG_SYS_SATA_DEVS_PER_BUS;
687 dev_select (&port[num].ioaddr, dev);
689 status = sata_busy_wait (&port[num].ioaddr, ATA_BUSY, 500);
690 if (status & ATA_BUSY) {
691 printf ("ata%u failed to respond\n", port[num].port_no);
695 while (blkcnt-- > 0) {
696 status = sata_busy_wait (&port[num].ioaddr, ATA_BUSY, 500);
697 if (status & ATA_BUSY) {
698 printf ("ata%u failed to respond\n",
704 /* write high bits */
705 sata_outb (0, port[num].ioaddr.nsect_addr);
706 sata_outb ((blknr >> 24) & 0xFF,
707 port[num].ioaddr.lbal_addr);
708 sata_outb ((blknr >> 32) & 0xFF,
709 port[num].ioaddr.lbam_addr);
710 sata_outb ((blknr >> 40) & 0xFF,
711 port[num].ioaddr.lbah_addr);
714 sata_outb (1, port[num].ioaddr.nsect_addr);
715 sata_outb ((blknr >> 0) & 0xFF, port[num].ioaddr.lbal_addr);
716 sata_outb ((blknr >> 8) & 0xFF, port[num].ioaddr.lbam_addr);
717 sata_outb ((blknr >> 16) & 0xFF, port[num].ioaddr.lbah_addr);
720 sata_outb (ATA_LBA, port[num].ioaddr.device_addr);
721 sata_outb (ATA_CMD_WRITE_EXT,
722 port[num].ioaddr.command_addr);
726 sata_outb (ATA_LBA | ((blknr >> 24) & 0xF),
727 port[num].ioaddr.device_addr);
728 sata_outb (ATA_CMD_WRITE,
729 port[num].ioaddr.command_addr);
733 /*may take up to 4 sec */
734 status = sata_busy_wait (&port[num].ioaddr, ATA_BUSY, 4000);
735 if ((status & (ATA_STAT_DRQ | ATA_STAT_BUSY | ATA_STAT_ERR))
737 printf ("Error no DRQ dev %d blk %ld: sts 0x%02x\n",
738 device, (ulong) blknr, status);
742 output_data (&port[num].ioaddr, buffer, ATA_SECTORWORDS);
743 sata_inb (port[num].ioaddr.altstatus_addr);
748 buffer += ATA_SECTORWORDS;
753 int scan_sata(int dev)