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path: root/drivers/ata/pata_pdc2027x.c
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Diffstat (limited to 'drivers/ata/pata_pdc2027x.c')
-rw-r--r--drivers/ata/pata_pdc2027x.c114
1 files changed, 56 insertions, 58 deletions
diff --git a/drivers/ata/pata_pdc2027x.c b/drivers/ata/pata_pdc2027x.c
index bb64a986e8f5..3d3f1558cdee 100644
--- a/drivers/ata/pata_pdc2027x.c
+++ b/drivers/ata/pata_pdc2027x.c
@@ -69,7 +69,7 @@ static void pdc2027x_set_dmamode(struct ata_port *ap, struct ata_device *adev);
69static int pdc2027x_check_atapi_dma(struct ata_queued_cmd *qc); 69static int pdc2027x_check_atapi_dma(struct ata_queued_cmd *qc);
70static unsigned long pdc2027x_mode_filter(struct ata_device *adev, unsigned long mask); 70static unsigned long pdc2027x_mode_filter(struct ata_device *adev, unsigned long mask);
71static int pdc2027x_cable_detect(struct ata_port *ap); 71static int pdc2027x_cable_detect(struct ata_port *ap);
72static int pdc2027x_set_mode(struct ata_port *ap, struct ata_device **r_failed); 72static int pdc2027x_set_mode(struct ata_link *link, struct ata_device **r_failed);
73 73
74/* 74/*
75 * ATA Timing Tables based on 133MHz controller clock. 75 * ATA Timing Tables based on 133MHz controller clock.
@@ -147,7 +147,6 @@ static struct scsi_host_template pdc2027x_sht = {
147}; 147};
148 148
149static struct ata_port_operations pdc2027x_pata100_ops = { 149static struct ata_port_operations pdc2027x_pata100_ops = {
150 .port_disable = ata_port_disable,
151 .mode_filter = ata_pci_default_filter, 150 .mode_filter = ata_pci_default_filter,
152 151
153 .tf_load = ata_tf_load, 152 .tf_load = ata_tf_load,
@@ -173,13 +172,11 @@ static struct ata_port_operations pdc2027x_pata100_ops = {
173 172
174 .irq_clear = ata_bmdma_irq_clear, 173 .irq_clear = ata_bmdma_irq_clear,
175 .irq_on = ata_irq_on, 174 .irq_on = ata_irq_on,
176 .irq_ack = ata_irq_ack,
177 175
178 .port_start = ata_port_start, 176 .port_start = ata_sff_port_start,
179}; 177};
180 178
181static struct ata_port_operations pdc2027x_pata133_ops = { 179static struct ata_port_operations pdc2027x_pata133_ops = {
182 .port_disable = ata_port_disable,
183 .set_piomode = pdc2027x_set_piomode, 180 .set_piomode = pdc2027x_set_piomode,
184 .set_dmamode = pdc2027x_set_dmamode, 181 .set_dmamode = pdc2027x_set_dmamode,
185 .set_mode = pdc2027x_set_mode, 182 .set_mode = pdc2027x_set_mode,
@@ -208,9 +205,8 @@ static struct ata_port_operations pdc2027x_pata133_ops = {
208 205
209 .irq_clear = ata_bmdma_irq_clear, 206 .irq_clear = ata_bmdma_irq_clear,
210 .irq_on = ata_irq_on, 207 .irq_on = ata_irq_on,
211 .irq_ack = ata_irq_ack,
212 208
213 .port_start = ata_port_start, 209 .port_start = ata_sff_port_start,
214}; 210};
215 211
216static struct ata_port_info pdc2027x_port_info[] = { 212static struct ata_port_info pdc2027x_port_info[] = {
@@ -277,7 +273,7 @@ static int pdc2027x_cable_detect(struct ata_port *ap)
277 u32 cgcr; 273 u32 cgcr;
278 274
279 /* check cable detect results */ 275 /* check cable detect results */
280 cgcr = readl(port_mmio(ap, PDC_GLOBAL_CTL)); 276 cgcr = ioread32(port_mmio(ap, PDC_GLOBAL_CTL));
281 if (cgcr & (1 << 26)) 277 if (cgcr & (1 << 26))
282 goto cbl40; 278 goto cbl40;
283 279
@@ -295,12 +291,12 @@ cbl40:
295 */ 291 */
296static inline int pdc2027x_port_enabled(struct ata_port *ap) 292static inline int pdc2027x_port_enabled(struct ata_port *ap)
297{ 293{
298 return readb(port_mmio(ap, PDC_ATA_CTL)) & 0x02; 294 return ioread8(port_mmio(ap, PDC_ATA_CTL)) & 0x02;
299} 295}
300 296
301/** 297/**
302 * pdc2027x_prereset - prereset for PATA host controller 298 * pdc2027x_prereset - prereset for PATA host controller
303 * @ap: Target port 299 * @link: Target link
304 * @deadline: deadline jiffies for the operation 300 * @deadline: deadline jiffies for the operation
305 * 301 *
306 * Probeinit including cable detection. 302 * Probeinit including cable detection.
@@ -309,12 +305,12 @@ static inline int pdc2027x_port_enabled(struct ata_port *ap)
309 * None (inherited from caller). 305 * None (inherited from caller).
310 */ 306 */
311 307
312static int pdc2027x_prereset(struct ata_port *ap, unsigned long deadline) 308static int pdc2027x_prereset(struct ata_link *link, unsigned long deadline)
313{ 309{
314 /* Check whether port enabled */ 310 /* Check whether port enabled */
315 if (!pdc2027x_port_enabled(ap)) 311 if (!pdc2027x_port_enabled(link->ap))
316 return -ENOENT; 312 return -ENOENT;
317 return ata_std_prereset(ap, deadline); 313 return ata_std_prereset(link, deadline);
318} 314}
319 315
320/** 316/**
@@ -387,16 +383,16 @@ static void pdc2027x_set_piomode(struct ata_port *ap, struct ata_device *adev)
387 /* Set the PIO timing registers using value table for 133MHz */ 383 /* Set the PIO timing registers using value table for 133MHz */
388 PDPRINTK("Set pio regs... \n"); 384 PDPRINTK("Set pio regs... \n");
389 385
390 ctcr0 = readl(dev_mmio(ap, adev, PDC_CTCR0)); 386 ctcr0 = ioread32(dev_mmio(ap, adev, PDC_CTCR0));
391 ctcr0 &= 0xffff0000; 387 ctcr0 &= 0xffff0000;
392 ctcr0 |= pdc2027x_pio_timing_tbl[pio].value0 | 388 ctcr0 |= pdc2027x_pio_timing_tbl[pio].value0 |
393 (pdc2027x_pio_timing_tbl[pio].value1 << 8); 389 (pdc2027x_pio_timing_tbl[pio].value1 << 8);
394 writel(ctcr0, dev_mmio(ap, adev, PDC_CTCR0)); 390 iowrite32(ctcr0, dev_mmio(ap, adev, PDC_CTCR0));
395 391
396 ctcr1 = readl(dev_mmio(ap, adev, PDC_CTCR1)); 392 ctcr1 = ioread32(dev_mmio(ap, adev, PDC_CTCR1));
397 ctcr1 &= 0x00ffffff; 393 ctcr1 &= 0x00ffffff;
398 ctcr1 |= (pdc2027x_pio_timing_tbl[pio].value2 << 24); 394 ctcr1 |= (pdc2027x_pio_timing_tbl[pio].value2 << 24);
399 writel(ctcr1, dev_mmio(ap, adev, PDC_CTCR1)); 395 iowrite32(ctcr1, dev_mmio(ap, adev, PDC_CTCR1));
400 396
401 PDPRINTK("Set pio regs done\n"); 397 PDPRINTK("Set pio regs done\n");
402 398
@@ -430,18 +426,18 @@ static void pdc2027x_set_dmamode(struct ata_port *ap, struct ata_device *adev)
430 * If tHOLD is '1', the hardware will add half clock for data hold time. 426 * If tHOLD is '1', the hardware will add half clock for data hold time.
431 * This code segment seems to be no effect. tHOLD will be overwritten below. 427 * This code segment seems to be no effect. tHOLD will be overwritten below.
432 */ 428 */
433 ctcr1 = readl(dev_mmio(ap, adev, PDC_CTCR1)); 429 ctcr1 = ioread32(dev_mmio(ap, adev, PDC_CTCR1));
434 writel(ctcr1 & ~(1 << 7), dev_mmio(ap, adev, PDC_CTCR1)); 430 iowrite32(ctcr1 & ~(1 << 7), dev_mmio(ap, adev, PDC_CTCR1));
435 } 431 }
436 432
437 PDPRINTK("Set udma regs... \n"); 433 PDPRINTK("Set udma regs... \n");
438 434
439 ctcr1 = readl(dev_mmio(ap, adev, PDC_CTCR1)); 435 ctcr1 = ioread32(dev_mmio(ap, adev, PDC_CTCR1));
440 ctcr1 &= 0xff000000; 436 ctcr1 &= 0xff000000;
441 ctcr1 |= pdc2027x_udma_timing_tbl[udma_mode].value0 | 437 ctcr1 |= pdc2027x_udma_timing_tbl[udma_mode].value0 |
442 (pdc2027x_udma_timing_tbl[udma_mode].value1 << 8) | 438 (pdc2027x_udma_timing_tbl[udma_mode].value1 << 8) |
443 (pdc2027x_udma_timing_tbl[udma_mode].value2 << 16); 439 (pdc2027x_udma_timing_tbl[udma_mode].value2 << 16);
444 writel(ctcr1, dev_mmio(ap, adev, PDC_CTCR1)); 440 iowrite32(ctcr1, dev_mmio(ap, adev, PDC_CTCR1));
445 441
446 PDPRINTK("Set udma regs done\n"); 442 PDPRINTK("Set udma regs done\n");
447 443
@@ -453,13 +449,13 @@ static void pdc2027x_set_dmamode(struct ata_port *ap, struct ata_device *adev)
453 unsigned int mdma_mode = dma_mode & 0x07; 449 unsigned int mdma_mode = dma_mode & 0x07;
454 450
455 PDPRINTK("Set mdma regs... \n"); 451 PDPRINTK("Set mdma regs... \n");
456 ctcr0 = readl(dev_mmio(ap, adev, PDC_CTCR0)); 452 ctcr0 = ioread32(dev_mmio(ap, adev, PDC_CTCR0));
457 453
458 ctcr0 &= 0x0000ffff; 454 ctcr0 &= 0x0000ffff;
459 ctcr0 |= (pdc2027x_mdma_timing_tbl[mdma_mode].value0 << 16) | 455 ctcr0 |= (pdc2027x_mdma_timing_tbl[mdma_mode].value0 << 16) |
460 (pdc2027x_mdma_timing_tbl[mdma_mode].value1 << 24); 456 (pdc2027x_mdma_timing_tbl[mdma_mode].value1 << 24);
461 457
462 writel(ctcr0, dev_mmio(ap, adev, PDC_CTCR0)); 458 iowrite32(ctcr0, dev_mmio(ap, adev, PDC_CTCR0));
463 PDPRINTK("Set mdma regs done\n"); 459 PDPRINTK("Set mdma regs done\n");
464 460
465 PDPRINTK("Set to mdma mode[%u] \n", mdma_mode); 461 PDPRINTK("Set to mdma mode[%u] \n", mdma_mode);
@@ -470,24 +466,24 @@ static void pdc2027x_set_dmamode(struct ata_port *ap, struct ata_device *adev)
470 466
471/** 467/**
472 * pdc2027x_set_mode - Set the timing registers back to correct values. 468 * pdc2027x_set_mode - Set the timing registers back to correct values.
473 * @ap: Port to configure 469 * @link: link to configure
474 * @r_failed: Returned device for failure 470 * @r_failed: Returned device for failure
475 * 471 *
476 * The pdc2027x hardware will look at "SET FEATURES" and change the timing registers 472 * The pdc2027x hardware will look at "SET FEATURES" and change the timing registers
477 * automatically. The values set by the hardware might be incorrect, under 133Mhz PLL. 473 * automatically. The values set by the hardware might be incorrect, under 133Mhz PLL.
478 * This function overwrites the possibly incorrect values set by the hardware to be correct. 474 * This function overwrites the possibly incorrect values set by the hardware to be correct.
479 */ 475 */
480static int pdc2027x_set_mode(struct ata_port *ap, struct ata_device **r_failed) 476static int pdc2027x_set_mode(struct ata_link *link, struct ata_device **r_failed)
481{ 477{
482 int i; 478 struct ata_port *ap = link->ap;
483 479 struct ata_device *dev;
484 i = ata_do_set_mode(ap, r_failed); 480 int rc;
485 if (i < 0)
486 return i;
487 481
488 for (i = 0; i < ATA_MAX_DEVICES; i++) { 482 rc = ata_do_set_mode(link, r_failed);
489 struct ata_device *dev = &ap->device[i]; 483 if (rc < 0)
484 return rc;
490 485
486 ata_link_for_each_dev(dev, link) {
491 if (ata_dev_enabled(dev)) { 487 if (ata_dev_enabled(dev)) {
492 488
493 pdc2027x_set_piomode(ap, dev); 489 pdc2027x_set_piomode(ap, dev);
@@ -496,9 +492,9 @@ static int pdc2027x_set_mode(struct ata_port *ap, struct ata_device **r_failed)
496 * Enable prefetch if the device support PIO only. 492 * Enable prefetch if the device support PIO only.
497 */ 493 */
498 if (dev->xfer_shift == ATA_SHIFT_PIO) { 494 if (dev->xfer_shift == ATA_SHIFT_PIO) {
499 u32 ctcr1 = readl(dev_mmio(ap, dev, PDC_CTCR1)); 495 u32 ctcr1 = ioread32(dev_mmio(ap, dev, PDC_CTCR1));
500 ctcr1 |= (1 << 25); 496 ctcr1 |= (1 << 25);
501 writel(ctcr1, dev_mmio(ap, dev, PDC_CTCR1)); 497 iowrite32(ctcr1, dev_mmio(ap, dev, PDC_CTCR1));
502 498
503 PDPRINTK("Turn on prefetch\n"); 499 PDPRINTK("Turn on prefetch\n");
504 } else { 500 } else {
@@ -563,14 +559,12 @@ static long pdc_read_counter(struct ata_host *host)
563 u32 bccrl, bccrh, bccrlv, bccrhv; 559 u32 bccrl, bccrh, bccrlv, bccrhv;
564 560
565retry: 561retry:
566 bccrl = readl(mmio_base + PDC_BYTE_COUNT) & 0x7fff; 562 bccrl = ioread32(mmio_base + PDC_BYTE_COUNT) & 0x7fff;
567 bccrh = readl(mmio_base + PDC_BYTE_COUNT + 0x100) & 0x7fff; 563 bccrh = ioread32(mmio_base + PDC_BYTE_COUNT + 0x100) & 0x7fff;
568 rmb();
569 564
570 /* Read the counter values again for verification */ 565 /* Read the counter values again for verification */
571 bccrlv = readl(mmio_base + PDC_BYTE_COUNT) & 0x7fff; 566 bccrlv = ioread32(mmio_base + PDC_BYTE_COUNT) & 0x7fff;
572 bccrhv = readl(mmio_base + PDC_BYTE_COUNT + 0x100) & 0x7fff; 567 bccrhv = ioread32(mmio_base + PDC_BYTE_COUNT + 0x100) & 0x7fff;
573 rmb();
574 568
575 counter = (bccrh << 15) | bccrl; 569 counter = (bccrh << 15) | bccrl;
576 570
@@ -619,7 +613,7 @@ static void pdc_adjust_pll(struct ata_host *host, long pll_clock, unsigned int b
619 /* Show the current clock value of PLL control register 613 /* Show the current clock value of PLL control register
620 * (maybe already configured by the firmware) 614 * (maybe already configured by the firmware)
621 */ 615 */
622 pll_ctl = readw(mmio_base + PDC_PLL_CTL); 616 pll_ctl = ioread16(mmio_base + PDC_PLL_CTL);
623 617
624 PDPRINTK("pll_ctl[%X]\n", pll_ctl); 618 PDPRINTK("pll_ctl[%X]\n", pll_ctl);
625#endif 619#endif
@@ -659,8 +653,8 @@ static void pdc_adjust_pll(struct ata_host *host, long pll_clock, unsigned int b
659 653
660 PDPRINTK("Writing pll_ctl[%X]\n", pll_ctl); 654 PDPRINTK("Writing pll_ctl[%X]\n", pll_ctl);
661 655
662 writew(pll_ctl, mmio_base + PDC_PLL_CTL); 656 iowrite16(pll_ctl, mmio_base + PDC_PLL_CTL);
663 readw(mmio_base + PDC_PLL_CTL); /* flush */ 657 ioread16(mmio_base + PDC_PLL_CTL); /* flush */
664 658
665 /* Wait the PLL circuit to be stable */ 659 /* Wait the PLL circuit to be stable */
666 mdelay(30); 660 mdelay(30);
@@ -670,7 +664,7 @@ static void pdc_adjust_pll(struct ata_host *host, long pll_clock, unsigned int b
670 * Show the current clock value of PLL control register 664 * Show the current clock value of PLL control register
671 * (maybe configured by the firmware) 665 * (maybe configured by the firmware)
672 */ 666 */
673 pll_ctl = readw(mmio_base + PDC_PLL_CTL); 667 pll_ctl = ioread16(mmio_base + PDC_PLL_CTL);
674 668
675 PDPRINTK("pll_ctl[%X]\n", pll_ctl); 669 PDPRINTK("pll_ctl[%X]\n", pll_ctl);
676#endif 670#endif
@@ -693,10 +687,10 @@ static long pdc_detect_pll_input_clock(struct ata_host *host)
693 long pll_clock, usec_elapsed; 687 long pll_clock, usec_elapsed;
694 688
695 /* Start the test mode */ 689 /* Start the test mode */
696 scr = readl(mmio_base + PDC_SYS_CTL); 690 scr = ioread32(mmio_base + PDC_SYS_CTL);
697 PDPRINTK("scr[%X]\n", scr); 691 PDPRINTK("scr[%X]\n", scr);
698 writel(scr | (0x01 << 14), mmio_base + PDC_SYS_CTL); 692 iowrite32(scr | (0x01 << 14), mmio_base + PDC_SYS_CTL);
699 readl(mmio_base + PDC_SYS_CTL); /* flush */ 693 ioread32(mmio_base + PDC_SYS_CTL); /* flush */
700 694
701 /* Read current counter value */ 695 /* Read current counter value */
702 start_count = pdc_read_counter(host); 696 start_count = pdc_read_counter(host);
@@ -710,10 +704,10 @@ static long pdc_detect_pll_input_clock(struct ata_host *host)
710 do_gettimeofday(&end_time); 704 do_gettimeofday(&end_time);
711 705
712 /* Stop the test mode */ 706 /* Stop the test mode */
713 scr = readl(mmio_base + PDC_SYS_CTL); 707 scr = ioread32(mmio_base + PDC_SYS_CTL);
714 PDPRINTK("scr[%X]\n", scr); 708 PDPRINTK("scr[%X]\n", scr);
715 writel(scr & ~(0x01 << 14), mmio_base + PDC_SYS_CTL); 709 iowrite32(scr & ~(0x01 << 14), mmio_base + PDC_SYS_CTL);
716 readl(mmio_base + PDC_SYS_CTL); /* flush */ 710 ioread32(mmio_base + PDC_SYS_CTL); /* flush */
717 711
718 /* calculate the input clock in Hz */ 712 /* calculate the input clock in Hz */
719 usec_elapsed = (end_time.tv_sec - start_time.tv_sec) * 1000000 + 713 usec_elapsed = (end_time.tv_sec - start_time.tv_sec) * 1000000 +
@@ -745,9 +739,6 @@ static int pdc_hardware_init(struct ata_host *host, unsigned int board_idx)
745 */ 739 */
746 pll_clock = pdc_detect_pll_input_clock(host); 740 pll_clock = pdc_detect_pll_input_clock(host);
747 741
748 if (pll_clock < 0) /* counter overflow? Try again. */
749 pll_clock = pdc_detect_pll_input_clock(host);
750
751 dev_printk(KERN_INFO, host->dev, "PLL input clock %ld kHz\n", pll_clock/1000); 742 dev_printk(KERN_INFO, host->dev, "PLL input clock %ld kHz\n", pll_clock/1000);
752 743
753 /* Adjust PLL control register */ 744 /* Adjust PLL control register */
@@ -791,12 +782,14 @@ static void pdc_ata_setup_port(struct ata_ioports *port, void __iomem *base)
791static int __devinit pdc2027x_init_one(struct pci_dev *pdev, const struct pci_device_id *ent) 782static int __devinit pdc2027x_init_one(struct pci_dev *pdev, const struct pci_device_id *ent)
792{ 783{
793 static int printed_version; 784 static int printed_version;
785 static const unsigned long cmd_offset[] = { 0x17c0, 0x15c0 };
786 static const unsigned long bmdma_offset[] = { 0x1000, 0x1008 };
794 unsigned int board_idx = (unsigned int) ent->driver_data; 787 unsigned int board_idx = (unsigned int) ent->driver_data;
795 const struct ata_port_info *ppi[] = 788 const struct ata_port_info *ppi[] =
796 { &pdc2027x_port_info[board_idx], NULL }; 789 { &pdc2027x_port_info[board_idx], NULL };
797 struct ata_host *host; 790 struct ata_host *host;
798 void __iomem *mmio_base; 791 void __iomem *mmio_base;
799 int rc; 792 int i, rc;
800 793
801 if (!printed_version++) 794 if (!printed_version++)
802 dev_printk(KERN_DEBUG, &pdev->dev, "version " DRV_VERSION "\n"); 795 dev_printk(KERN_DEBUG, &pdev->dev, "version " DRV_VERSION "\n");
@@ -826,10 +819,15 @@ static int __devinit pdc2027x_init_one(struct pci_dev *pdev, const struct pci_de
826 819
827 mmio_base = host->iomap[PDC_MMIO_BAR]; 820 mmio_base = host->iomap[PDC_MMIO_BAR];
828 821
829 pdc_ata_setup_port(&host->ports[0]->ioaddr, mmio_base + 0x17c0); 822 for (i = 0; i < 2; i++) {
830 host->ports[0]->ioaddr.bmdma_addr = mmio_base + 0x1000; 823 struct ata_port *ap = host->ports[i];
831 pdc_ata_setup_port(&host->ports[1]->ioaddr, mmio_base + 0x15c0); 824
832 host->ports[1]->ioaddr.bmdma_addr = mmio_base + 0x1008; 825 pdc_ata_setup_port(&ap->ioaddr, mmio_base + cmd_offset[i]);
826 ap->ioaddr.bmdma_addr = mmio_base + bmdma_offset[i];
827
828 ata_port_pbar_desc(ap, PDC_MMIO_BAR, -1, "mmio");
829 ata_port_pbar_desc(ap, PDC_MMIO_BAR, cmd_offset[i], "cmd");
830 }
833 831
834 //pci_enable_intx(pdev); 832 //pci_enable_intx(pdev);
835 833