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authorLinus Torvalds <torvalds@linux-foundation.org>2009-01-16 11:40:57 -0500
committerLinus Torvalds <torvalds@linux-foundation.org>2009-01-16 11:40:57 -0500
commite58d4fd89aa91369357526f810c783a5acaf0cc4 (patch)
tree2ff0180423156c18ac8d7efd2b9d14712d7566c0
parenta11d9b623ea7cdcd647318bb2b3282d4c337f086 (diff)
parente4ac522bd7261829197a3d01d5feedb2aca8ae38 (diff)
Merge branch 'upstream-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jgarzik/libata-dev
* 'upstream-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jgarzik/libata-dev: sata_fsl: Return non-zero on error in probe() drivers/ata/pata_ali.c: s/isa_bridge/ali_isa_bridge/ to fix alpha build libata: New driver for OCTEON SOC Compact Flash interface (v7). libata: Add another column to the ata_timing table. sata_via: Add VT8261 support pata_atiixp: update port enabledness test handling [libata] get-identity ioctl: Fix use of invalid memory pointer
Diffstat
-rw-r--r--drivers/ata/Kconfig9
-rw-r--r--drivers/ata/Makefile1
-rw-r--r--drivers/ata/libata-core.c73
-rw-r--r--drivers/ata/libata-scsi.c17
-rw-r--r--drivers/ata/pata_ali.c28
-rw-r--r--drivers/ata/pata_atiixp.c32
-rw-r--r--drivers/ata/pata_octeon_cf.c965
-rw-r--r--drivers/ata/sata_fsl.c2
-rw-r--r--drivers/ata/sata_via.c2
-rw-r--r--drivers/scsi/ipr.c2
-rw-r--r--drivers/scsi/libsas/sas_scsi_host.c2
-rw-r--r--include/linux/libata.h11
12 files changed, 1065 insertions, 79 deletions
diff --git a/drivers/ata/Kconfig b/drivers/ata/Kconfig
index 1a7be96d627b..503a908afc80 100644
--- a/drivers/ata/Kconfig
+++ b/drivers/ata/Kconfig
@@ -698,6 +698,15 @@ config PATA_IXP4XX_CF
698 698
699 If unsure, say N. 699 If unsure, say N.
700 700
701config PATA_OCTEON_CF
702 tristate "OCTEON Boot Bus Compact Flash support"
703 depends on CPU_CAVIUM_OCTEON
704 help
705 This option enables a polled compact flash driver for use with
706 compact flash cards attached to the OCTEON boot bus.
707
708 If unsure, say N.
709
701config PATA_SCC 710config PATA_SCC
702 tristate "Toshiba's Cell Reference Set IDE support" 711 tristate "Toshiba's Cell Reference Set IDE support"
703 depends on PCI && PPC_CELLEB 712 depends on PCI && PPC_CELLEB
diff --git a/drivers/ata/Makefile b/drivers/ata/Makefile
index 674965fa326d..7f1ecf99528c 100644
--- a/drivers/ata/Makefile
+++ b/drivers/ata/Makefile
@@ -69,6 +69,7 @@ obj-$(CONFIG_PATA_IXP4XX_CF) += pata_ixp4xx_cf.o
69obj-$(CONFIG_PATA_SCC) += pata_scc.o 69obj-$(CONFIG_PATA_SCC) += pata_scc.o
70obj-$(CONFIG_PATA_SCH) += pata_sch.o 70obj-$(CONFIG_PATA_SCH) += pata_sch.o
71obj-$(CONFIG_PATA_BF54X) += pata_bf54x.o 71obj-$(CONFIG_PATA_BF54X) += pata_bf54x.o
72obj-$(CONFIG_PATA_OCTEON_CF) += pata_octeon_cf.o
72obj-$(CONFIG_PATA_PLATFORM) += pata_platform.o 73obj-$(CONFIG_PATA_PLATFORM) += pata_platform.o
73obj-$(CONFIG_PATA_OF_PLATFORM) += pata_of_platform.o 74obj-$(CONFIG_PATA_OF_PLATFORM) += pata_of_platform.o
74obj-$(CONFIG_PATA_ICSIDE) += pata_icside.o 75obj-$(CONFIG_PATA_ICSIDE) += pata_icside.o
diff --git a/drivers/ata/libata-core.c b/drivers/ata/libata-core.c
index 71218d76d75e..88c242856dae 100644
--- a/drivers/ata/libata-core.c
+++ b/drivers/ata/libata-core.c
@@ -3029,33 +3029,33 @@ int sata_set_spd(struct ata_link *link)
3029 */ 3029 */
3030 3030
3031static const struct ata_timing ata_timing[] = { 3031static const struct ata_timing ata_timing[] = {
3032/* { XFER_PIO_SLOW, 120, 290, 240, 960, 290, 240, 960, 0 }, */ 3032/* { XFER_PIO_SLOW, 120, 290, 240, 960, 290, 240, 0, 960, 0 }, */
3033 { XFER_PIO_0, 70, 290, 240, 600, 165, 150, 600, 0 }, 3033 { XFER_PIO_0, 70, 290, 240, 600, 165, 150, 0, 600, 0 },
3034 { XFER_PIO_1, 50, 290, 93, 383, 125, 100, 383, 0 }, 3034 { XFER_PIO_1, 50, 290, 93, 383, 125, 100, 0, 383, 0 },
3035 { XFER_PIO_2, 30, 290, 40, 330, 100, 90, 240, 0 }, 3035 { XFER_PIO_2, 30, 290, 40, 330, 100, 90, 0, 240, 0 },
3036 { XFER_PIO_3, 30, 80, 70, 180, 80, 70, 180, 0 }, 3036 { XFER_PIO_3, 30, 80, 70, 180, 80, 70, 0, 180, 0 },
3037 { XFER_PIO_4, 25, 70, 25, 120, 70, 25, 120, 0 }, 3037 { XFER_PIO_4, 25, 70, 25, 120, 70, 25, 0, 120, 0 },
3038 { XFER_PIO_5, 15, 65, 25, 100, 65, 25, 100, 0 }, 3038 { XFER_PIO_5, 15, 65, 25, 100, 65, 25, 0, 100, 0 },
3039 { XFER_PIO_6, 10, 55, 20, 80, 55, 20, 80, 0 }, 3039 { XFER_PIO_6, 10, 55, 20, 80, 55, 20, 0, 80, 0 },
3040 3040
3041 { XFER_SW_DMA_0, 120, 0, 0, 0, 480, 480, 960, 0 }, 3041 { XFER_SW_DMA_0, 120, 0, 0, 0, 480, 480, 50, 960, 0 },
3042 { XFER_SW_DMA_1, 90, 0, 0, 0, 240, 240, 480, 0 }, 3042 { XFER_SW_DMA_1, 90, 0, 0, 0, 240, 240, 30, 480, 0 },
3043 { XFER_SW_DMA_2, 60, 0, 0, 0, 120, 120, 240, 0 }, 3043 { XFER_SW_DMA_2, 60, 0, 0, 0, 120, 120, 20, 240, 0 },
3044 3044
3045 { XFER_MW_DMA_0, 60, 0, 0, 0, 215, 215, 480, 0 }, 3045 { XFER_MW_DMA_0, 60, 0, 0, 0, 215, 215, 20, 480, 0 },
3046 { XFER_MW_DMA_1, 45, 0, 0, 0, 80, 50, 150, 0 }, 3046 { XFER_MW_DMA_1, 45, 0, 0, 0, 80, 50, 5, 150, 0 },
3047 { XFER_MW_DMA_2, 25, 0, 0, 0, 70, 25, 120, 0 }, 3047 { XFER_MW_DMA_2, 25, 0, 0, 0, 70, 25, 5, 120, 0 },
3048 { XFER_MW_DMA_3, 25, 0, 0, 0, 65, 25, 100, 0 }, 3048 { XFER_MW_DMA_3, 25, 0, 0, 0, 65, 25, 5, 100, 0 },
3049 { XFER_MW_DMA_4, 25, 0, 0, 0, 55, 20, 80, 0 }, 3049 { XFER_MW_DMA_4, 25, 0, 0, 0, 55, 20, 5, 80, 0 },
3050 3050
3051/* { XFER_UDMA_SLOW, 0, 0, 0, 0, 0, 0, 0, 150 }, */ 3051/* { XFER_UDMA_SLOW, 0, 0, 0, 0, 0, 0, 0, 0, 150 }, */
3052 { XFER_UDMA_0, 0, 0, 0, 0, 0, 0, 0, 120 }, 3052 { XFER_UDMA_0, 0, 0, 0, 0, 0, 0, 0, 0, 120 },
3053 { XFER_UDMA_1, 0, 0, 0, 0, 0, 0, 0, 80 }, 3053 { XFER_UDMA_1, 0, 0, 0, 0, 0, 0, 0, 0, 80 },
3054 { XFER_UDMA_2, 0, 0, 0, 0, 0, 0, 0, 60 }, 3054 { XFER_UDMA_2, 0, 0, 0, 0, 0, 0, 0, 0, 60 },
3055 { XFER_UDMA_3, 0, 0, 0, 0, 0, 0, 0, 45 }, 3055 { XFER_UDMA_3, 0, 0, 0, 0, 0, 0, 0, 0, 45 },
3056 { XFER_UDMA_4, 0, 0, 0, 0, 0, 0, 0, 30 }, 3056 { XFER_UDMA_4, 0, 0, 0, 0, 0, 0, 0, 0, 30 },
3057 { XFER_UDMA_5, 0, 0, 0, 0, 0, 0, 0, 20 }, 3057 { XFER_UDMA_5, 0, 0, 0, 0, 0, 0, 0, 0, 20 },
3058 { XFER_UDMA_6, 0, 0, 0, 0, 0, 0, 0, 15 }, 3058 { XFER_UDMA_6, 0, 0, 0, 0, 0, 0, 0, 0, 15 },
3059 3059
3060 { 0xFF } 3060 { 0xFF }
3061}; 3061};
@@ -3065,14 +3065,15 @@ static const struct ata_timing ata_timing[] = {
3065 3065
3066static void ata_timing_quantize(const struct ata_timing *t, struct ata_timing *q, int T, int UT) 3066static void ata_timing_quantize(const struct ata_timing *t, struct ata_timing *q, int T, int UT)
3067{ 3067{
3068 q->setup = EZ(t->setup * 1000, T); 3068 q->setup = EZ(t->setup * 1000, T);
3069 q->act8b = EZ(t->act8b * 1000, T); 3069 q->act8b = EZ(t->act8b * 1000, T);
3070 q->rec8b = EZ(t->rec8b * 1000, T); 3070 q->rec8b = EZ(t->rec8b * 1000, T);
3071 q->cyc8b = EZ(t->cyc8b * 1000, T); 3071 q->cyc8b = EZ(t->cyc8b * 1000, T);
3072 q->active = EZ(t->active * 1000, T); 3072 q->active = EZ(t->active * 1000, T);
3073 q->recover = EZ(t->recover * 1000, T); 3073 q->recover = EZ(t->recover * 1000, T);
3074 q->cycle = EZ(t->cycle * 1000, T); 3074 q->dmack_hold = EZ(t->dmack_hold * 1000, T);
3075 q->udma = EZ(t->udma * 1000, UT); 3075 q->cycle = EZ(t->cycle * 1000, T);
3076 q->udma = EZ(t->udma * 1000, UT);
3076} 3077}
3077 3078
3078void ata_timing_merge(const struct ata_timing *a, const struct ata_timing *b, 3079void ata_timing_merge(const struct ata_timing *a, const struct ata_timing *b,
@@ -3084,6 +3085,7 @@ void ata_timing_merge(const struct ata_timing *a, const struct ata_timing *b,
3084 if (what & ATA_TIMING_CYC8B ) m->cyc8b = max(a->cyc8b, b->cyc8b); 3085 if (what & ATA_TIMING_CYC8B ) m->cyc8b = max(a->cyc8b, b->cyc8b);
3085 if (what & ATA_TIMING_ACTIVE ) m->active = max(a->active, b->active); 3086 if (what & ATA_TIMING_ACTIVE ) m->active = max(a->active, b->active);
3086 if (what & ATA_TIMING_RECOVER) m->recover = max(a->recover, b->recover); 3087 if (what & ATA_TIMING_RECOVER) m->recover = max(a->recover, b->recover);
3088 if (what & ATA_TIMING_DMACK_HOLD) m->dmack_hold = max(a->dmack_hold, b->dmack_hold);
3087 if (what & ATA_TIMING_CYCLE ) m->cycle = max(a->cycle, b->cycle); 3089 if (what & ATA_TIMING_CYCLE ) m->cycle = max(a->cycle, b->cycle);
3088 if (what & ATA_TIMING_UDMA ) m->udma = max(a->udma, b->udma); 3090 if (what & ATA_TIMING_UDMA ) m->udma = max(a->udma, b->udma);
3089} 3091}
@@ -6638,7 +6640,6 @@ EXPORT_SYMBOL_GPL(ata_dev_pair);
6638EXPORT_SYMBOL_GPL(ata_port_disable); 6640EXPORT_SYMBOL_GPL(ata_port_disable);
6639EXPORT_SYMBOL_GPL(ata_ratelimit); 6641EXPORT_SYMBOL_GPL(ata_ratelimit);
6640EXPORT_SYMBOL_GPL(ata_wait_register); 6642EXPORT_SYMBOL_GPL(ata_wait_register);
6641EXPORT_SYMBOL_GPL(ata_scsi_ioctl);
6642EXPORT_SYMBOL_GPL(ata_scsi_queuecmd); 6643EXPORT_SYMBOL_GPL(ata_scsi_queuecmd);
6643EXPORT_SYMBOL_GPL(ata_scsi_slave_config); 6644EXPORT_SYMBOL_GPL(ata_scsi_slave_config);
6644EXPORT_SYMBOL_GPL(ata_scsi_slave_destroy); 6645EXPORT_SYMBOL_GPL(ata_scsi_slave_destroy);
diff --git a/drivers/ata/libata-scsi.c b/drivers/ata/libata-scsi.c
index 9e92107691f2..a1a6e6298c33 100644
--- a/drivers/ata/libata-scsi.c
+++ b/drivers/ata/libata-scsi.c
@@ -423,9 +423,9 @@ int ata_std_bios_param(struct scsi_device *sdev, struct block_device *bdev,
423 * RETURNS: 423 * RETURNS:
424 * Zero on success, negative errno on error. 424 * Zero on success, negative errno on error.
425 */ 425 */
426static int ata_get_identity(struct scsi_device *sdev, void __user *arg) 426static int ata_get_identity(struct ata_port *ap, struct scsi_device *sdev,
427 void __user *arg)
427{ 428{
428 struct ata_port *ap = ata_shost_to_port(sdev->host);
429 struct ata_device *dev = ata_scsi_find_dev(ap, sdev); 429 struct ata_device *dev = ata_scsi_find_dev(ap, sdev);
430 u16 __user *dst = arg; 430 u16 __user *dst = arg;
431 char buf[40]; 431 char buf[40];
@@ -645,7 +645,8 @@ int ata_task_ioctl(struct scsi_device *scsidev, void __user *arg)
645 return rc; 645 return rc;
646} 646}
647 647
648int ata_scsi_ioctl(struct scsi_device *scsidev, int cmd, void __user *arg) 648int ata_sas_scsi_ioctl(struct ata_port *ap, struct scsi_device *scsidev,
649 int cmd, void __user *arg)
649{ 650{
650 int val = -EINVAL, rc = -EINVAL; 651 int val = -EINVAL, rc = -EINVAL;
651 652
@@ -663,7 +664,7 @@ int ata_scsi_ioctl(struct scsi_device *scsidev, int cmd, void __user *arg)
663 return 0; 664 return 0;
664 665
665 case HDIO_GET_IDENTITY: 666 case HDIO_GET_IDENTITY:
666 return ata_get_identity(scsidev, arg); 667 return ata_get_identity(ap, scsidev, arg);
667 668
668 case HDIO_DRIVE_CMD: 669 case HDIO_DRIVE_CMD:
669 if (!capable(CAP_SYS_ADMIN) || !capable(CAP_SYS_RAWIO)) 670 if (!capable(CAP_SYS_ADMIN) || !capable(CAP_SYS_RAWIO))
@@ -682,6 +683,14 @@ int ata_scsi_ioctl(struct scsi_device *scsidev, int cmd, void __user *arg)
682 683
683 return rc; 684 return rc;
684} 685}
686EXPORT_SYMBOL_GPL(ata_sas_scsi_ioctl);
687
688int ata_scsi_ioctl(struct scsi_device *scsidev, int cmd, void __user *arg)
689{
690 return ata_sas_scsi_ioctl(ata_shost_to_port(scsidev->host),
691 scsidev, cmd, arg);
692}
693EXPORT_SYMBOL_GPL(ata_scsi_ioctl);
685 694
686/** 695/**
687 * ata_scsi_qc_new - acquire new ata_queued_cmd reference 696 * ata_scsi_qc_new - acquire new ata_queued_cmd reference
diff --git a/drivers/ata/pata_ali.c b/drivers/ata/pata_ali.c
index a7999c19f0c9..eb99dbe78081 100644
--- a/drivers/ata/pata_ali.c
+++ b/drivers/ata/pata_ali.c
@@ -41,7 +41,7 @@ static int ali_atapi_dma = 0;
41module_param_named(atapi_dma, ali_atapi_dma, int, 0644); 41module_param_named(atapi_dma, ali_atapi_dma, int, 0644);
42MODULE_PARM_DESC(atapi_dma, "Enable ATAPI DMA (0=disable, 1=enable)"); 42MODULE_PARM_DESC(atapi_dma, "Enable ATAPI DMA (0=disable, 1=enable)");
43 43
44static struct pci_dev *isa_bridge; 44static struct pci_dev *ali_isa_bridge;
45 45
46/* 46/*
47 * Cable special cases 47 * Cable special cases
@@ -346,13 +346,13 @@ static void ali_c2_c3_postreset(struct ata_link *link, unsigned int *classes)
346 int port_bit = 4 << link->ap->port_no; 346 int port_bit = 4 << link->ap->port_no;
347 347
348 /* If our bridge is an ALI 1533 then do the extra work */ 348 /* If our bridge is an ALI 1533 then do the extra work */
349 if (isa_bridge) { 349 if (ali_isa_bridge) {
350 /* Tristate and re-enable the bus signals */ 350 /* Tristate and re-enable the bus signals */
351 pci_read_config_byte(isa_bridge, 0x58, &r); 351 pci_read_config_byte(ali_isa_bridge, 0x58, &r);
352 r &= ~port_bit; 352 r &= ~port_bit;
353 pci_write_config_byte(isa_bridge, 0x58, r); 353 pci_write_config_byte(ali_isa_bridge, 0x58, r);
354 r |= port_bit; 354 r |= port_bit;
355 pci_write_config_byte(isa_bridge, 0x58, r); 355 pci_write_config_byte(ali_isa_bridge, 0x58, r);
356 } 356 }
357 ata_sff_postreset(link, classes); 357 ata_sff_postreset(link, classes);
358} 358}
@@ -467,14 +467,14 @@ static void ali_init_chipset(struct pci_dev *pdev)
467 pci_write_config_byte(pdev, 0x53, tmp); 467 pci_write_config_byte(pdev, 0x53, tmp);
468 } 468 }
469 north = pci_get_bus_and_slot(0, PCI_DEVFN(0,0)); 469 north = pci_get_bus_and_slot(0, PCI_DEVFN(0,0));
470 if (north && north->vendor == PCI_VENDOR_ID_AL && isa_bridge) { 470 if (north && north->vendor == PCI_VENDOR_ID_AL && ali_isa_bridge) {
471 /* Configure the ALi bridge logic. For non ALi rely on BIOS. 471 /* Configure the ALi bridge logic. For non ALi rely on BIOS.
472 Set the south bridge enable bit */ 472 Set the south bridge enable bit */
473 pci_read_config_byte(isa_bridge, 0x79, &tmp); 473 pci_read_config_byte(ali_isa_bridge, 0x79, &tmp);
474 if (pdev->revision == 0xC2) 474 if (pdev->revision == 0xC2)
475 pci_write_config_byte(isa_bridge, 0x79, tmp | 0x04); 475 pci_write_config_byte(ali_isa_bridge, 0x79, tmp | 0x04);
476 else if (pdev->revision > 0xC2 && pdev->revision < 0xC5) 476 else if (pdev->revision > 0xC2 && pdev->revision < 0xC5)
477 pci_write_config_byte(isa_bridge, 0x79, tmp | 0x02); 477 pci_write_config_byte(ali_isa_bridge, 0x79, tmp | 0x02);
478 } 478 }
479 pci_dev_put(north); 479 pci_dev_put(north);
480 ata_pci_bmdma_clear_simplex(pdev); 480 ata_pci_bmdma_clear_simplex(pdev);
@@ -571,9 +571,9 @@ static int ali_init_one(struct pci_dev *pdev, const struct pci_device_id *id)
571 571
572 ali_init_chipset(pdev); 572 ali_init_chipset(pdev);
573 573
574 if (isa_bridge && pdev->revision >= 0x20 && pdev->revision < 0xC2) { 574 if (ali_isa_bridge && pdev->revision >= 0x20 && pdev->revision < 0xC2) {
575 /* Are we paired with a UDMA capable chip */ 575 /* Are we paired with a UDMA capable chip */
576 pci_read_config_byte(isa_bridge, 0x5E, &tmp); 576 pci_read_config_byte(ali_isa_bridge, 0x5E, &tmp);
577 if ((tmp & 0x1E) == 0x12) 577 if ((tmp & 0x1E) == 0x12)
578 ppi[0] = &info_20_udma; 578 ppi[0] = &info_20_udma;
579 } 579 }
@@ -617,11 +617,11 @@ static struct pci_driver ali_pci_driver = {
617static int __init ali_init(void) 617static int __init ali_init(void)
618{ 618{
619 int ret; 619 int ret;
620 isa_bridge = pci_get_device(PCI_VENDOR_ID_AL, PCI_DEVICE_ID_AL_M1533, NULL); 620 ali_isa_bridge = pci_get_device(PCI_VENDOR_ID_AL, PCI_DEVICE_ID_AL_M1533, NULL);
621 621
622 ret = pci_register_driver(&ali_pci_driver); 622 ret = pci_register_driver(&ali_pci_driver);
623 if (ret < 0) 623 if (ret < 0)
624 pci_dev_put(isa_bridge); 624 pci_dev_put(ali_isa_bridge);
625 return ret; 625 return ret;
626} 626}
627 627
@@ -629,7 +629,7 @@ static int __init ali_init(void)
629static void __exit ali_exit(void) 629static void __exit ali_exit(void)
630{ 630{
631 pci_unregister_driver(&ali_pci_driver); 631 pci_unregister_driver(&ali_pci_driver);
632 pci_dev_put(isa_bridge); 632 pci_dev_put(ali_isa_bridge);
633} 633}
634 634
635 635
diff --git a/drivers/ata/pata_atiixp.c b/drivers/ata/pata_atiixp.c
index 0e2cde8f9973..506adde8ebb3 100644
--- a/drivers/ata/pata_atiixp.c
+++ b/drivers/ata/pata_atiixp.c
@@ -32,21 +32,6 @@ enum {
32 ATIIXP_IDE_UDMA_MODE = 0x56 32 ATIIXP_IDE_UDMA_MODE = 0x56
33}; 33};
34 34
35static int atiixp_pre_reset(struct ata_link *link, unsigned long deadline)
36{
37 struct ata_port *ap = link->ap;
38 static const struct pci_bits atiixp_enable_bits[] = {
39 { 0x48, 1, 0x01, 0x00 },
40 { 0x48, 1, 0x08, 0x00 }
41 };
42 struct pci_dev *pdev = to_pci_dev(ap->host->dev);
43
44 if (!pci_test_config_bits(pdev, &atiixp_enable_bits[ap->port_no]))
45 return -ENOENT;
46
47 return ata_sff_prereset(link, deadline);
48}
49
50static int atiixp_cable_detect(struct ata_port *ap) 35static int atiixp_cable_detect(struct ata_port *ap)
51{ 36{
52 struct pci_dev *pdev = to_pci_dev(ap->host->dev); 37 struct pci_dev *pdev = to_pci_dev(ap->host->dev);
@@ -229,10 +214,9 @@ static struct ata_port_operations atiixp_port_ops = {
229 .cable_detect = atiixp_cable_detect, 214 .cable_detect = atiixp_cable_detect,
230 .set_piomode = atiixp_set_piomode, 215 .set_piomode = atiixp_set_piomode,
231 .set_dmamode = atiixp_set_dmamode, 216 .set_dmamode = atiixp_set_dmamode,
232 .prereset = atiixp_pre_reset,
233}; 217};
234 218
235static int atiixp_init_one(struct pci_dev *dev, const struct pci_device_id *id) 219static int atiixp_init_one(struct pci_dev *pdev, const struct pci_device_id *id)
236{ 220{
237 static const struct ata_port_info info = { 221 static const struct ata_port_info info = {
238 .flags = ATA_FLAG_SLAVE_POSS, 222 .flags = ATA_FLAG_SLAVE_POSS,
@@ -241,8 +225,18 @@ static int atiixp_init_one(struct pci_dev *dev, const struct pci_device_id *id)
241 .udma_mask = 0x3F, 225 .udma_mask = 0x3F,
242 .port_ops = &atiixp_port_ops 226 .port_ops = &atiixp_port_ops
243 }; 227 };
244 const struct ata_port_info *ppi[] = { &info, NULL }; 228 static const struct pci_bits atiixp_enable_bits[] = {
245 return ata_pci_sff_init_one(dev, ppi, &atiixp_sht, NULL); 229 { 0x48, 1, 0x01, 0x00 },
230 { 0x48, 1, 0x08, 0x00 }
231 };
232 const struct ata_port_info *ppi[] = { &info, &info };
233 int i;
234
235 for (i = 0; i < 2; i++)
236 if (!pci_test_config_bits(pdev, &atiixp_enable_bits[i]))
237 ppi[i] = &ata_dummy_port_info;
238
239 return ata_pci_sff_init_one(pdev, ppi, &atiixp_sht, NULL);
246} 240}
247 241
248static const struct pci_device_id atiixp[] = { 242static const struct pci_device_id atiixp[] = {
diff --git a/drivers/ata/pata_octeon_cf.c b/drivers/ata/pata_octeon_cf.c
new file mode 100644
index 000000000000..0fe4ef309c62
--- /dev/null
+++ b/drivers/ata/pata_octeon_cf.c
@@ -0,0 +1,965 @@
1/*
2 * Driver for the Octeon bootbus compact flash.
3 *
4 * This file is subject to the terms and conditions of the GNU General Public
5 * License. See the file "COPYING" in the main directory of this archive
6 * for more details.
7 *
8 * Copyright (C) 2005 - 2009 Cavium Networks
9 * Copyright (C) 2008 Wind River Systems
10 */
11
12#include <linux/kernel.h>
13#include <linux/module.h>
14#include <linux/libata.h>
15#include <linux/irq.h>
16#include <linux/platform_device.h>
17#include <linux/workqueue.h>
18#include <scsi/scsi_host.h>
19
20#include <asm/octeon/octeon.h>
21
22/*
23 * The Octeon bootbus compact flash interface is connected in at least
24 * 3 different configurations on various evaluation boards:
25 *
26 * -- 8 bits no irq, no DMA
27 * -- 16 bits no irq, no DMA
28 * -- 16 bits True IDE mode with DMA, but no irq.
29 *
30 * In the last case the DMA engine can generate an interrupt when the
31 * transfer is complete. For the first two cases only PIO is supported.
32 *
33 */
34
35#define DRV_NAME "pata_octeon_cf"
36#define DRV_VERSION "2.1"
37
38
39struct octeon_cf_port {
40 struct workqueue_struct *wq;
41 struct delayed_work delayed_finish;
42 struct ata_port *ap;
43 int dma_finished;
44};
45
46static struct scsi_host_template octeon_cf_sht = {
47 ATA_PIO_SHT(DRV_NAME),
48};
49
50/**
51 * Convert nanosecond based time to setting used in the
52 * boot bus timing register, based on timing multiple
53 */
54static unsigned int ns_to_tim_reg(unsigned int tim_mult, unsigned int nsecs)
55{
56 unsigned int val;
57
58 /*
59 * Compute # of eclock periods to get desired duration in
60 * nanoseconds.
61 */
62 val = DIV_ROUND_UP(nsecs * (octeon_get_clock_rate() / 1000000),
63 1000 * tim_mult);
64
65 return val;
66}
67
68static void octeon_cf_set_boot_reg_cfg(int cs)
69{
70 union cvmx_mio_boot_reg_cfgx reg_cfg;
71 reg_cfg.u64 = cvmx_read_csr(CVMX_MIO_BOOT_REG_CFGX(cs));
72 reg_cfg.s.dmack = 0; /* Don't assert DMACK on access */
73 reg_cfg.s.tim_mult = 2; /* Timing mutiplier 2x */
74 reg_cfg.s.rd_dly = 0; /* Sample on falling edge of BOOT_OE */
75 reg_cfg.s.sam = 0; /* Don't combine write and output enable */
76 reg_cfg.s.we_ext = 0; /* No write enable extension */
77 reg_cfg.s.oe_ext = 0; /* No read enable extension */
78 reg_cfg.s.en = 1; /* Enable this region */
79 reg_cfg.s.orbit = 0; /* Don't combine with previous region */
80 reg_cfg.s.ale = 0; /* Don't do address multiplexing */
81 cvmx_write_csr(CVMX_MIO_BOOT_REG_CFGX(cs), reg_cfg.u64);
82}
83
84/**
85 * Called after libata determines the needed PIO mode. This
86 * function programs the Octeon bootbus regions to support the
87 * timing requirements of the PIO mode.
88 *
89 * @ap: ATA port information
90 * @dev: ATA device
91 */
92static void octeon_cf_set_piomode(struct ata_port *ap, struct ata_device *dev)
93{
94 struct octeon_cf_data *ocd = ap->dev->platform_data;
95 union cvmx_mio_boot_reg_timx reg_tim;
96 int cs = ocd->base_region;
97 int T;
98 struct ata_timing timing;
99
100 int use_iordy;
101 int trh;
102 int pause;
103 /* These names are timing parameters from the ATA spec */
104 int t1;
105 int t2;
106 int t2i;
107
108 T = (int)(2000000000000LL / octeon_get_clock_rate());
109
110 if (ata_timing_compute(dev, dev->pio_mode, &timing, T, T))
111 BUG();
112
113 t1 = timing.setup;
114 if (t1)
115 t1--;
116 t2 = timing.active;
117 if (t2)
118 t2--;
119 t2i = timing.act8b;
120 if (t2i)
121 t2i--;
122
123 trh = ns_to_tim_reg(2, 20);
124 if (trh)
125 trh--;
126
127 pause = timing.cycle - timing.active - timing.setup - trh;
128 if (pause)
129 pause--;
130
131 octeon_cf_set_boot_reg_cfg(cs);
132 if (ocd->dma_engine >= 0)
133 /* True IDE mode, program both chip selects. */
134 octeon_cf_set_boot_reg_cfg(cs + 1);
135
136
137 use_iordy = ata_pio_need_iordy(dev);
138
139 reg_tim.u64 = cvmx_read_csr(CVMX_MIO_BOOT_REG_TIMX(cs));
140 /* Disable page mode */
141 reg_tim.s.pagem = 0;
142 /* Enable dynamic timing */
143 reg_tim.s.waitm = use_iordy;
144 /* Pages are disabled */
145 reg_tim.s.pages = 0;
146 /* We don't use multiplexed address mode */
147 reg_tim.s.ale = 0;
148 /* Not used */
149 reg_tim.s.page = 0;
150 /* Time after IORDY to coninue to assert the data */
151 reg_tim.s.wait = 0;
152 /* Time to wait to complete the cycle. */
153 reg_tim.s.pause = pause;
154 /* How long to hold after a write to de-assert CE. */
155 reg_tim.s.wr_hld = trh;
156 /* How long to wait after a read to de-assert CE. */
157 reg_tim.s.rd_hld = trh;
158 /* How long write enable is asserted */
159 reg_tim.s.we = t2;
160 /* How long read enable is asserted */
161 reg_tim.s.oe = t2;
162 /* Time after CE that read/write starts */
163 reg_tim.s.ce = ns_to_tim_reg(2, 5);
164 /* Time before CE that address is valid */
165 reg_tim.s.adr = 0;
166
167 /* Program the bootbus region timing for the data port chip select. */
168 cvmx_write_csr(CVMX_MIO_BOOT_REG_TIMX(cs), reg_tim.u64);
169 if (ocd->dma_engine >= 0)
170 /* True IDE mode, program both chip selects. */
171 cvmx_write_csr(CVMX_MIO_BOOT_REG_TIMX(cs + 1), reg_tim.u64);
172}
173
174static void octeon_cf_set_dmamode(struct ata_port *ap, struct ata_device *dev)
175{
176 struct octeon_cf_data *ocd = dev->link->ap->dev->platform_data;
177 union cvmx_mio_boot_dma_timx dma_tim;
178 unsigned int oe_a;
179 unsigned int oe_n;
180 unsigned int dma_ackh;
181 unsigned int dma_arq;
182 unsigned int pause;
183 unsigned int T0, Tkr, Td;
184 unsigned int tim_mult;
185
186 const struct ata_timing *timing;
187
188 timing = ata_timing_find_mode(dev->dma_mode);
189 T0 = timing->cycle;
190 Td = timing->active;
191 Tkr = timing->recover;
192 dma_ackh = timing->dmack_hold;
193
194 dma_tim.u64 = 0;
195 /* dma_tim.s.tim_mult = 0 --> 4x */
196 tim_mult = 4;
197
198 /* not spec'ed, value in eclocks, not affected by tim_mult */
199 dma_arq = 8;
200 pause = 25 - dma_arq * 1000 /
201 (octeon_get_clock_rate() / 1000000); /* Tz */
202
203 oe_a = Td;
204 /* Tkr from cf spec, lengthened to meet T0 */
205 oe_n = max(T0 - oe_a, Tkr);
206
207 dma_tim.s.dmack_pi = 1;
208
209 dma_tim.s.oe_n = ns_to_tim_reg(tim_mult, oe_n);
210 dma_tim.s.oe_a = ns_to_tim_reg(tim_mult, oe_a);
211
212 /*
213 * This is tI, C.F. spec. says 0, but Sony CF card requires
214 * more, we use 20 nS.
215 */
216 dma_tim.s.dmack_s = ns_to_tim_reg(tim_mult, 20);;
217 dma_tim.s.dmack_h = ns_to_tim_reg(tim_mult, dma_ackh);
218
219 dma_tim.s.dmarq = dma_arq;
220 dma_tim.s.pause = ns_to_tim_reg(tim_mult, pause);
221
222 dma_tim.s.rd_dly = 0; /* Sample right on edge */
223
224 /* writes only */
225 dma_tim.s.we_n = ns_to_tim_reg(tim_mult, oe_n);
226 dma_tim.s.we_a = ns_to_tim_reg(tim_mult, oe_a);
227
228 pr_debug("ns to ticks (mult %d) of %d is: %d\n", tim_mult, 60,
229 ns_to_tim_reg(tim_mult, 60));
230 pr_debug("oe_n: %d, oe_a: %d, dmack_s: %d, dmack_h: "
231 "%d, dmarq: %d, pause: %d\n",
232 dma_tim.s.oe_n, dma_tim.s.oe_a, dma_tim.s.dmack_s,
233 dma_tim.s.dmack_h, dma_tim.s.dmarq, dma_tim.s.pause);
234
235 cvmx_write_csr(CVMX_MIO_BOOT_DMA_TIMX(ocd->dma_engine),
236 dma_tim.u64);
237
238}
239
240/**
241 * Handle an 8 bit I/O request.
242 *
243 * @dev: Device to access
244 * @buffer: Data buffer
245 * @buflen: Length of the buffer.
246 * @rw: True to write.
247 */
248static unsigned int octeon_cf_data_xfer8(struct ata_device *dev,
249 unsigned char *buffer,
250 unsigned int buflen,
251 int rw)
252{
253 struct ata_port *ap = dev->link->ap;
254 void __iomem *data_addr = ap->ioaddr.data_addr;
255 unsigned long words;
256 int count;
257
258 words = buflen;
259 if (rw) {
260 count = 16;
261 while (words--) {
262 iowrite8(*buffer, data_addr);
263 buffer++;
264 /*
265 * Every 16 writes do a read so the bootbus
266 * FIFO doesn't fill up.
267 */
268 if (--count == 0) {
269 ioread8(ap->ioaddr.altstatus_addr);
270 count = 16;
271 }
272 }
273 } else {
274 ioread8_rep(data_addr, buffer, words);
275 }
276 return buflen;
277}
278
279/**
280 * Handle a 16 bit I/O request.
281 *
282 * @dev: Device to access
283 * @buffer: Data buffer
284 * @buflen: Length of the buffer.
285 * @rw: True to write.
286 */
287static unsigned int octeon_cf_data_xfer16(struct ata_device *dev,
288 unsigned char *buffer,
289 unsigned int buflen,
290 int rw)
291{
292 struct ata_port *ap = dev->link->ap;
293 void __iomem *data_addr = ap->ioaddr.data_addr;
294 unsigned long words;
295 int count;
296
297 words = buflen / 2;
298 if (rw) {
299 count = 16;
300 while (words--) {
301 iowrite16(*(uint16_t *)buffer, data_addr);
302 buffer += sizeof(uint16_t);
303 /*
304 * Every 16 writes do a read so the bootbus
305 * FIFO doesn't fill up.
306 */
307 if (--count == 0) {
308 ioread8(ap->ioaddr.altstatus_addr);
309 count = 16;
310 }
311 }
312 } else {
313 while (words--) {
314 *(uint16_t *)buffer = ioread16(data_addr);
315 buffer += sizeof(uint16_t);
316 }
317 }
318 /* Transfer trailing 1 byte, if any. */
319 if (unlikely(buflen & 0x01)) {
320 __le16 align_buf[1] = { 0 };
321
322 if (rw == READ) {
323 align_buf[0] = cpu_to_le16(ioread16(data_addr));
324 memcpy(buffer, align_buf, 1);
325 } else {
326 memcpy(align_buf, buffer, 1);
327 iowrite16(le16_to_cpu(align_buf[0]), data_addr);
328 }
329 words++;
330 }
331 return buflen;
332}
333
334/**
335 * Read the taskfile for 16bit non-True IDE only.
336 */
337static void octeon_cf_tf_read16(struct ata_port *ap, struct ata_taskfile *tf)
338{
339 u16 blob;
340 /* The base of the registers is at ioaddr.data_addr. */
341 void __iomem *base = ap->ioaddr.data_addr;
342
343 blob = __raw_readw(base + 0xc);
344 tf->feature = blob >> 8;
345
346 blob = __raw_readw(base + 2);
347 tf->nsect = blob & 0xff;
348 tf->lbal = blob >> 8;
349
350 blob = __raw_readw(base + 4);
351 tf->lbam = blob & 0xff;
352 tf->lbah = blob >> 8;
353
354 blob = __raw_readw(base + 6);
355 tf->device = blob & 0xff;
356 tf->command = blob >> 8;
357
358 if (tf->flags & ATA_TFLAG_LBA48) {
359 if (likely(ap->ioaddr.ctl_addr)) {
360 iowrite8(tf->ctl | ATA_HOB, ap->ioaddr.ctl_addr);
361
362 blob = __raw_readw(base + 0xc);
363 tf->hob_feature = blob >> 8;
364
365 blob = __raw_readw(base + 2);
366 tf->hob_nsect = blob & 0xff;
367 tf->hob_lbal = blob >> 8;
368
369 blob = __raw_readw(base + 4);
370 tf->hob_lbam = blob & 0xff;
371 tf->hob_lbah = blob >> 8;
372
373 iowrite8(tf->ctl, ap->ioaddr.ctl_addr);
374 ap->last_ctl = tf->ctl;
375 } else {
376 WARN_ON(1);
377 }
378 }
379}
380
381static u8 octeon_cf_check_status16(struct ata_port *ap)
382{
383 u16 blob;
384 void __iomem *base = ap->ioaddr.data_addr;
385
386 blob = __raw_readw(base + 6);
387 return blob >> 8;
388}
389
390static int octeon_cf_softreset16(struct ata_link *link, unsigned int *classes,
391 unsigned long deadline)
392{
393 struct ata_port *ap = link->ap;
394 void __iomem *base = ap->ioaddr.data_addr;
395 int rc;
396 u8 err;
397
398 DPRINTK("about to softreset\n");
399 __raw_writew(ap->ctl, base + 0xe);
400 udelay(20);
401 __raw_writew(ap->ctl | ATA_SRST, base + 0xe);
402 udelay(20);
403 __raw_writew(ap->ctl, base + 0xe);
404
405 rc = ata_sff_wait_after_reset(link, 1, deadline);
406 if (rc) {
407 ata_link_printk(link, KERN_ERR, "SRST failed (errno=%d)\n", rc);
408 return rc;
409 }
410
411 /* determine by signature whether we have ATA or ATAPI devices */
412 classes[0] = ata_sff_dev_classify(&link->device[0], 1, &err);
413 DPRINTK("EXIT, classes[0]=%u [1]=%u\n", classes[0], classes[1]);
414 return 0;
415}
416
417/**
418 * Load the taskfile for 16bit non-True IDE only. The device_addr is
419 * not loaded, we do this as part of octeon_cf_exec_command16.
420 */
421static void octeon_cf_tf_load16(struct ata_port *ap,
422 const struct ata_taskfile *tf)
423{
424 unsigned int is_addr = tf->flags & ATA_TFLAG_ISADDR;
425 /* The base of the registers is at ioaddr.data_addr. */
426 void __iomem *base = ap->ioaddr.data_addr;
427
428 if (tf->ctl != ap->last_ctl) {
429 iowrite8(tf->ctl, ap->ioaddr.ctl_addr);
430 ap->last_ctl = tf->ctl;
431 ata_wait_idle(ap);
432 }
433 if (is_addr && (tf->flags & ATA_TFLAG_LBA48)) {
434 __raw_writew(tf->hob_feature << 8, base + 0xc);
435 __raw_writew(tf->hob_nsect | tf->hob_lbal << 8, base + 2);
436 __raw_writew(tf->hob_lbam | tf->hob_lbah << 8, base + 4);
437 VPRINTK("hob: feat 0x%X nsect 0x%X, lba 0x%X 0x%X 0x%X\n",
438 tf->hob_feature,
439 tf->hob_nsect,
440 tf->hob_lbal,
441 tf->hob_lbam,
442 tf->hob_lbah);
443 }
444 if (is_addr) {
445 __raw_writew(tf->feature << 8, base + 0xc);
446 __raw_writew(tf->nsect | tf->lbal << 8, base + 2);
447 __raw_writew(tf->lbam | tf->lbah << 8, base + 4);
448 VPRINTK("feat 0x%X nsect 0x%X, lba 0x%X 0x%X 0x%X\n",
449 tf->feature,
450 tf->nsect,
451 tf->lbal,
452 tf->lbam,
453 tf->lbah);
454 }
455 ata_wait_idle(ap);
456}
457
458
459static void octeon_cf_dev_select(struct ata_port *ap, unsigned int device)
460{
461/* There is only one device, do nothing. */
462 return;
463}
464
465/*
466 * Issue ATA command to host controller. The device_addr is also sent
467 * as it must be written in a combined write with the command.
468 */
469static void octeon_cf_exec_command16(struct ata_port *ap,
470 const struct ata_taskfile *tf)
471{
472 /* The base of the registers is at ioaddr.data_addr. */
473 void __iomem *base = ap->ioaddr.data_addr;
474 u16 blob;
475
476 if (tf->flags & ATA_TFLAG_DEVICE) {
477 VPRINTK("device 0x%X\n", tf->device);
478 blob = tf->device;
479 } else {
480 blob = 0;
481 }
482
483 DPRINTK("ata%u: cmd 0x%X\n", ap->print_id, tf->command);
484 blob |= (tf->command << 8);
485 __raw_writew(blob, base + 6);
486
487
488 ata_wait_idle(ap);
489}
490
491static u8 octeon_cf_irq_on(struct ata_port *ap)
492{
493 return 0;
494}
495
496static void octeon_cf_irq_clear(struct ata_port *ap)
497{
498 return;
499}
500
501static void octeon_cf_dma_setup(struct ata_queued_cmd *qc)
502{
503 struct ata_port *ap = qc->ap;
504 struct octeon_cf_port *cf_port;
505
506 cf_port = (struct octeon_cf_port *)ap->private_data;
507 DPRINTK("ENTER\n");
508 /* issue r/w command */
509 qc->cursg = qc->sg;
510 cf_port->dma_finished = 0;
511 ap->ops->sff_exec_command(ap, &qc->tf);
512 DPRINTK("EXIT\n");
513}
514
515/**
516 * Start a DMA transfer that was already setup
517 *
518 * @qc: Information about the DMA
519 */
520static void octeon_cf_dma_start(struct ata_queued_cmd *qc)
521{
522 struct octeon_cf_data *ocd = qc->ap->dev->platform_data;
523 union cvmx_mio_boot_dma_cfgx mio_boot_dma_cfg;
524 union cvmx_mio_boot_dma_intx mio_boot_dma_int;
525 struct scatterlist *sg;
526
527 VPRINTK("%d scatterlists\n", qc->n_elem);
528
529 /* Get the scatter list entry we need to DMA into */
530 sg = qc->cursg;
531 BUG_ON(!sg);
532
533 /*
534 * Clear the DMA complete status.
535 */
536 mio_boot_dma_int.u64 = 0;
537 mio_boot_dma_int.s.done = 1;
538 cvmx_write_csr(CVMX_MIO_BOOT_DMA_INTX(ocd->dma_engine),
539 mio_boot_dma_int.u64);
540
541 /* Enable the interrupt. */
542 cvmx_write_csr(CVMX_MIO_BOOT_DMA_INT_ENX(ocd->dma_engine),
543 mio_boot_dma_int.u64);
544
545 /* Set the direction of the DMA */
546 mio_boot_dma_cfg.u64 = 0;
547 mio_boot_dma_cfg.s.en = 1;
548 mio_boot_dma_cfg.s.rw = ((qc->tf.flags & ATA_TFLAG_WRITE) != 0);
549
550 /*
551 * Don't stop the DMA if the device deasserts DMARQ. Many
552 * compact flashes deassert DMARQ for a short time between
553 * sectors. Instead of stopping and restarting the DMA, we'll
554 * let the hardware do it. If the DMA is really stopped early
555 * due to an error condition, a later timeout will force us to
556 * stop.
557 */
558 mio_boot_dma_cfg.s.clr = 0;
559
560 /* Size is specified in 16bit words and minus one notation */
561 mio_boot_dma_cfg.s.size = sg_dma_len(sg) / 2 - 1;
562
563 /* We need to swap the high and low bytes of every 16 bits */
564 mio_boot_dma_cfg.s.swap8 = 1;
565
566 mio_boot_dma_cfg.s.adr = sg_dma_address(sg);
567
568 VPRINTK("%s %d bytes address=%p\n",
569 (mio_boot_dma_cfg.s.rw) ? "write" : "read", sg->length,
570 (void *)(unsigned long)mio_boot_dma_cfg.s.adr);
571
572 cvmx_write_csr(CVMX_MIO_BOOT_DMA_CFGX(ocd->dma_engine),
573 mio_boot_dma_cfg.u64);
574}
575
576/**
577 *
578 * LOCKING:
579 * spin_lock_irqsave(host lock)
580 *
581 */
582static unsigned int octeon_cf_dma_finished(struct ata_port *ap,
583 struct ata_queued_cmd *qc)
584{
585 struct ata_eh_info *ehi = &ap->link.eh_info;
586 struct octeon_cf_data *ocd = ap->dev->platform_data;
587 union cvmx_mio_boot_dma_cfgx dma_cfg;
588 union cvmx_mio_boot_dma_intx dma_int;
589 struct octeon_cf_port *cf_port;
590 u8 status;
591
592 VPRINTK("ata%u: protocol %d task_state %d\n",
593 ap->print_id, qc->tf.protocol, ap->hsm_task_state);
594
595
596 if (ap->hsm_task_state != HSM_ST_LAST)
597 return 0;
598
599 cf_port = (struct octeon_cf_port *)ap->private_data;
600
601 dma_cfg.u64 = cvmx_read_csr(CVMX_MIO_BOOT_DMA_CFGX(ocd->dma_engine));
602 if (dma_cfg.s.size != 0xfffff) {
603 /* Error, the transfer was not complete. */
604 qc->err_mask |= AC_ERR_HOST_BUS;
605 ap->hsm_task_state = HSM_ST_ERR;
606 }
607
608 /* Stop and clear the dma engine. */
609 dma_cfg.u64 = 0;
610 dma_cfg.s.size = -1;
611 cvmx_write_csr(CVMX_MIO_BOOT_DMA_CFGX(ocd->dma_engine), dma_cfg.u64);
612
613 /* Disable the interrupt. */
614 dma_int.u64 = 0;
615 cvmx_write_csr(CVMX_MIO_BOOT_DMA_INT_ENX(ocd->dma_engine), dma_int.u64);
616
617 /* Clear the DMA complete status */
618 dma_int.s.done = 1;
619 cvmx_write_csr(CVMX_MIO_BOOT_DMA_INTX(ocd->dma_engine), dma_int.u64);
620
621 status = ap->ops->sff_check_status(ap);
622
623 ata_sff_hsm_move(ap, qc, status, 0);
624
625 if (unlikely(qc->err_mask) && (qc->tf.protocol == ATA_PROT_DMA))
626 ata_ehi_push_desc(ehi, "DMA stat 0x%x", status);
627
628 return 1;
629}
630
631/*
632 * Check if any queued commands have more DMAs, if so start the next
633 * transfer, else do end of transfer handling.
634 */
635static irqreturn_t octeon_cf_interrupt(int irq, void *dev_instance)
636{
637 struct ata_host *host = dev_instance;
638 struct octeon_cf_port *cf_port;
639 int i;
640 unsigned int handled = 0;
641 unsigned long flags;
642
643 spin_lock_irqsave(&host->lock, flags);
644
645 DPRINTK("ENTER\n");
646 for (i = 0; i < host->n_ports; i++) {
647 u8 status;
648 struct ata_port *ap;
649 struct ata_queued_cmd *qc;
650 union cvmx_mio_boot_dma_intx dma_int;
651 union cvmx_mio_boot_dma_cfgx dma_cfg;
652 struct octeon_cf_data *ocd;
653
654 ap = host->ports[i];
655 ocd = ap->dev->platform_data;
656 if (!ap || (ap->flags & ATA_FLAG_DISABLED))
657 continue;
658
659 ocd = ap->dev->platform_data;
660 cf_port = (struct octeon_cf_port *)ap->private_data;
661 dma_int.u64 =
662 cvmx_read_csr(CVMX_MIO_BOOT_DMA_INTX(ocd->dma_engine));
663 dma_cfg.u64 =
664 cvmx_read_csr(CVMX_MIO_BOOT_DMA_CFGX(ocd->dma_engine));
665
666 qc = ata_qc_from_tag(ap, ap->link.active_tag);
667
668 if (qc && (!(qc->tf.flags & ATA_TFLAG_POLLING)) &&
669 (qc->flags & ATA_QCFLAG_ACTIVE)) {
670 if (dma_int.s.done && !dma_cfg.s.en) {
671 if (!sg_is_last(qc->cursg)) {
672 qc->cursg = sg_next(qc->cursg);
673 handled = 1;
674 octeon_cf_dma_start(qc);
675 continue;
676 } else {
677 cf_port->dma_finished = 1;
678 }
679 }
680 if (!cf_port->dma_finished)
681 continue;
682 status = ioread8(ap->ioaddr.altstatus_addr);
683 if (status & (ATA_BUSY | ATA_DRQ)) {
684 /*
685 * We are busy, try to handle it
686 * later. This is the DMA finished
687 * interrupt, and it could take a
688 * little while for the card to be
689 * ready for more commands.
690 */
691 /* Clear DMA irq. */
692 dma_int.u64 = 0;
693 dma_int.s.done = 1;
694 cvmx_write_csr(CVMX_MIO_BOOT_DMA_INTX(ocd->dma_engine),
695 dma_int.u64);
696
697 queue_delayed_work(cf_port->wq,
698 &cf_port->delayed_finish, 1);
699 handled = 1;
700 } else {
701 handled |= octeon_cf_dma_finished(ap, qc);
702 }
703 }
704 }
705 spin_unlock_irqrestore(&host->lock, flags);
706 DPRINTK("EXIT\n");
707 return IRQ_RETVAL(handled);
708}
709
710static void octeon_cf_delayed_finish(struct work_struct *work)
711{
712 struct octeon_cf_port *cf_port = container_of(work,
713 struct octeon_cf_port,
714 delayed_finish.work);
715 struct ata_port *ap = cf_port->ap;
716 struct ata_host *host = ap->host;
717 struct ata_queued_cmd *qc;
718 unsigned long flags;
719 u8 status;
720
721 spin_lock_irqsave(&host->lock, flags);
722
723 /*
724 * If the port is not waiting for completion, it must have
725 * handled it previously. The hsm_task_state is
726 * protected by host->lock.
727 */
728 if (ap->hsm_task_state != HSM_ST_LAST || !cf_port->dma_finished)
729 goto out;
730
731 status = ioread8(ap->ioaddr.altstatus_addr);
732 if (status & (ATA_BUSY | ATA_DRQ)) {
733 /* Still busy, try again. */
734 queue_delayed_work(cf_port->wq,
735 &cf_port->delayed_finish, 1);
736 goto out;
737 }
738 qc = ata_qc_from_tag(ap, ap->link.active_tag);
739 if (qc && (!(qc->tf.flags & ATA_TFLAG_POLLING)) &&
740 (qc->flags & ATA_QCFLAG_ACTIVE))
741 octeon_cf_dma_finished(ap, qc);
742out:
743 spin_unlock_irqrestore(&host->lock, flags);
744}
745
746static void octeon_cf_dev_config(struct ata_device *dev)
747{
748 /*
749 * A maximum of 2^20 - 1 16 bit transfers are possible with
750 * the bootbus DMA. So we need to throttle max_sectors to
751 * (2^12 - 1 == 4095) to assure that this can never happen.
752 */
753 dev->max_sectors = min(dev->max_sectors, 4095U);
754}
755
756/*
757 * Trap if driver tries to do standard bmdma commands. They are not
758 * supported.
759 */
760static void unreachable_qc(struct ata_queued_cmd *qc)
761{
762 BUG();
763}
764
765static u8 unreachable_port(struct ata_port *ap)
766{
767 BUG();
768}
769
770/*
771 * We don't do ATAPI DMA so return 0.
772 */
773static int octeon_cf_check_atapi_dma(struct ata_queued_cmd *qc)
774{
775 return 0;
776}
777
778static unsigned int octeon_cf_qc_issue(struct ata_queued_cmd *qc)
779{
780 struct ata_port *ap = qc->ap;
781
782 switch (qc->tf.protocol) {
783 case ATA_PROT_DMA:
784 WARN_ON(qc->tf.flags & ATA_TFLAG_POLLING);
785
786 ap->ops->sff_tf_load(ap, &qc->tf); /* load tf registers */
787 octeon_cf_dma_setup(qc); /* set up dma */
788 octeon_cf_dma_start(qc); /* initiate dma */
789 ap->hsm_task_state = HSM_ST_LAST;
790 break;
791
792 case ATAPI_PROT_DMA:
793 dev_err(ap->dev, "Error, ATAPI not supported\n");
794 BUG();
795
796 default:
797 return ata_sff_qc_issue(qc);
798 }
799
800 return 0;
801}
802
803static struct ata_port_operations octeon_cf_ops = {
804 .inherits = &ata_sff_port_ops,
805 .check_atapi_dma = octeon_cf_check_atapi_dma,
806 .qc_prep = ata_noop_qc_prep,
807 .qc_issue = octeon_cf_qc_issue,
808 .sff_dev_select = octeon_cf_dev_select,
809 .sff_irq_on = octeon_cf_irq_on,
810 .sff_irq_clear = octeon_cf_irq_clear,
811 .bmdma_setup = unreachable_qc,
812 .bmdma_start = unreachable_qc,
813 .bmdma_stop = unreachable_qc,
814 .bmdma_status = unreachable_port,
815 .cable_detect = ata_cable_40wire,
816 .set_piomode = octeon_cf_set_piomode,
817 .set_dmamode = octeon_cf_set_dmamode,
818 .dev_config = octeon_cf_dev_config,
819};
820
821static int __devinit octeon_cf_probe(struct platform_device *pdev)
822{
823 struct resource *res_cs0, *res_cs1;
824
825 void __iomem *cs0;
826 void __iomem *cs1 = NULL;
827 struct ata_host *host;
828 struct ata_port *ap;
829 struct octeon_cf_data *ocd;
830 int irq = 0;
831 irq_handler_t irq_handler = NULL;
832 void __iomem *base;
833 struct octeon_cf_port *cf_port;
834
835 res_cs0 = platform_get_resource(pdev, IORESOURCE_MEM, 0);
836
837 if (!res_cs0)
838 return -EINVAL;
839
840 ocd = pdev->dev.platform_data;
841
842 cs0 = devm_ioremap_nocache(&pdev->dev, res_cs0->start,
843 res_cs0->end - res_cs0->start + 1);
844
845 if (!cs0)
846 return -ENOMEM;
847
848 /* Determine from availability of DMA if True IDE mode or not */
849 if (ocd->dma_engine >= 0) {
850 res_cs1 = platform_get_resource(pdev, IORESOURCE_MEM, 1);
851 if (!res_cs1)
852 return -EINVAL;
853
854 cs1 = devm_ioremap_nocache(&pdev->dev, res_cs1->start,
855 res_cs0->end - res_cs1->start + 1);
856
857 if (!cs1)
858 return -ENOMEM;
859 }
860
861 cf_port = kzalloc(sizeof(*cf_port), GFP_KERNEL);
862 if (!cf_port)
863 return -ENOMEM;
864
865 /* allocate host */
866 host = ata_host_alloc(&pdev->dev, 1);
867 if (!host)
868 goto free_cf_port;
869
870 ap = host->ports[0];
871 ap->private_data = cf_port;
872 cf_port->ap = ap;
873 ap->ops = &octeon_cf_ops;
874 ap->pio_mask = 0x7f; /* Support PIO 0-6 */
875 ap->flags |= ATA_FLAG_MMIO | ATA_FLAG_NO_LEGACY
876 | ATA_FLAG_NO_ATAPI | ATA_FLAG_PIO_POLLING;
877
878 base = cs0 + ocd->base_region_bias;
879 if (!ocd->is16bit) {
880 ap->ioaddr.cmd_addr = base;
881 ata_sff_std_ports(&ap->ioaddr);
882
883 ap->ioaddr.altstatus_addr = base + 0xe;
884 ap->ioaddr.ctl_addr = base + 0xe;
885 octeon_cf_ops.sff_data_xfer = octeon_cf_data_xfer8;
886 } else if (cs1) {
887 /* Presence of cs1 indicates True IDE mode. */
888 ap->ioaddr.cmd_addr = base + (ATA_REG_CMD << 1) + 1;
889 ap->ioaddr.data_addr = base + (ATA_REG_DATA << 1);
890 ap->ioaddr.error_addr = base + (ATA_REG_ERR << 1) + 1;
891 ap->ioaddr.feature_addr = base + (ATA_REG_FEATURE << 1) + 1;
892 ap->ioaddr.nsect_addr = base + (ATA_REG_NSECT << 1) + 1;
893 ap->ioaddr.lbal_addr = base + (ATA_REG_LBAL << 1) + 1;
894 ap->ioaddr.lbam_addr = base + (ATA_REG_LBAM << 1) + 1;
895 ap->ioaddr.lbah_addr = base + (ATA_REG_LBAH << 1) + 1;
896 ap->ioaddr.device_addr = base + (ATA_REG_DEVICE << 1) + 1;
897 ap->ioaddr.status_addr = base + (ATA_REG_STATUS << 1) + 1;
898 ap->ioaddr.command_addr = base + (ATA_REG_CMD << 1) + 1;
899 ap->ioaddr.altstatus_addr = cs1 + (6 << 1) + 1;
900 ap->ioaddr.ctl_addr = cs1 + (6 << 1) + 1;
901 octeon_cf_ops.sff_data_xfer = octeon_cf_data_xfer16;
902
903 ap->mwdma_mask = 0x1f; /* Support MWDMA 0-4 */
904 irq = platform_get_irq(pdev, 0);
905 irq_handler = octeon_cf_interrupt;
906
907 /* True IDE mode needs delayed work to poll for not-busy. */
908 cf_port->wq = create_singlethread_workqueue(DRV_NAME);
909 if (!cf_port->wq)
910 goto free_cf_port;
911 INIT_DELAYED_WORK(&cf_port->delayed_finish,
912 octeon_cf_delayed_finish);
913
914 } else {
915 /* 16 bit but not True IDE */
916 octeon_cf_ops.sff_data_xfer = octeon_cf_data_xfer16;
917 octeon_cf_ops.softreset = octeon_cf_softreset16;
918 octeon_cf_ops.sff_check_status = octeon_cf_check_status16;
919 octeon_cf_ops.sff_tf_read = octeon_cf_tf_read16;
920 octeon_cf_ops.sff_tf_load = octeon_cf_tf_load16;
921 octeon_cf_ops.sff_exec_command = octeon_cf_exec_command16;
922
923 ap->ioaddr.data_addr = base + ATA_REG_DATA;
924 ap->ioaddr.nsect_addr = base + ATA_REG_NSECT;
925 ap->ioaddr.lbal_addr = base + ATA_REG_LBAL;
926 ap->ioaddr.ctl_addr = base + 0xe;
927 ap->ioaddr.altstatus_addr = base + 0xe;
928 }
929
930 ata_port_desc(ap, "cmd %p ctl %p", base, ap->ioaddr.ctl_addr);
931
932
933 dev_info(&pdev->dev, "version " DRV_VERSION" %d bit%s.\n",
934 (ocd->is16bit) ? 16 : 8,
935 (cs1) ? ", True IDE" : "");
936
937
938 return ata_host_activate(host, irq, irq_handler, 0, &octeon_cf_sht);
939
940free_cf_port:
941 kfree(cf_port);
942 return -ENOMEM;
943}
944
945static struct platform_driver octeon_cf_driver = {
946 .probe = octeon_cf_probe,
947 .driver = {
948 .name = DRV_NAME,
949 .owner = THIS_MODULE,
950 },
951};
952
953static int __init octeon_cf_init(void)
954{
955 return platform_driver_register(&octeon_cf_driver);
956}
957
958
959MODULE_AUTHOR("David Daney <ddaney@caviumnetworks.com>");
960MODULE_DESCRIPTION("low-level driver for Cavium OCTEON Compact Flash PATA");
961MODULE_LICENSE("GPL");
962MODULE_VERSION(DRV_VERSION);
963MODULE_ALIAS("platform:" DRV_NAME);
964
965module_init(octeon_cf_init);
diff --git a/drivers/ata/sata_fsl.c b/drivers/ata/sata_fsl.c
index 1a56db92ff7a..55bc88c1707b 100644
--- a/drivers/ata/sata_fsl.c
+++ b/drivers/ata/sata_fsl.c
@@ -1288,7 +1288,7 @@ static const struct ata_port_info sata_fsl_port_info[] = {
1288static int sata_fsl_probe(struct of_device *ofdev, 1288static int sata_fsl_probe(struct of_device *ofdev,
1289 const struct of_device_id *match) 1289 const struct of_device_id *match)
1290{ 1290{
1291 int retval = 0; 1291 int retval = -ENXIO;
1292 void __iomem *hcr_base = NULL; 1292 void __iomem *hcr_base = NULL;
1293 void __iomem *ssr_base = NULL; 1293 void __iomem *ssr_base = NULL;
1294 void __iomem *csr_base = NULL; 1294 void __iomem *csr_base = NULL;
diff --git a/drivers/ata/sata_via.c b/drivers/ata/sata_via.c
index c18935f0bda2..5c62da9cd491 100644
--- a/drivers/ata/sata_via.c
+++ b/drivers/ata/sata_via.c
@@ -92,6 +92,8 @@ static const struct pci_device_id svia_pci_tbl[] = {
92 { PCI_VDEVICE(VIA, 0x5372), vt6420 }, 92 { PCI_VDEVICE(VIA, 0x5372), vt6420 },
93 { PCI_VDEVICE(VIA, 0x7372), vt6420 }, 93 { PCI_VDEVICE(VIA, 0x7372), vt6420 },
94 { PCI_VDEVICE(VIA, 0x5287), vt8251 }, /* 2 sata chnls (Master/Slave) */ 94 { PCI_VDEVICE(VIA, 0x5287), vt8251 }, /* 2 sata chnls (Master/Slave) */
95 { PCI_VDEVICE(VIA, 0x9000), vt8251 },
96 { PCI_VDEVICE(VIA, 0x9040), vt8251 },
95 97
96 { } /* terminate list */ 98 { } /* terminate list */
97}; 99};
diff --git a/drivers/scsi/ipr.c b/drivers/scsi/ipr.c
index 841f460edbc4..07829009a8be 100644
--- a/drivers/scsi/ipr.c
+++ b/drivers/scsi/ipr.c
@@ -4912,7 +4912,7 @@ static int ipr_ioctl(struct scsi_device *sdev, int cmd, void __user *arg)
4912 if (res && ipr_is_gata(res)) { 4912 if (res && ipr_is_gata(res)) {
4913 if (cmd == HDIO_GET_IDENTITY) 4913 if (cmd == HDIO_GET_IDENTITY)
4914 return -ENOTTY; 4914 return -ENOTTY;
4915 return ata_scsi_ioctl(sdev, cmd, arg); 4915 return ata_sas_scsi_ioctl(res->sata_port->ap, sdev, cmd, arg);
4916 } 4916 }
4917 4917
4918 return -EINVAL; 4918 return -EINVAL;
diff --git a/drivers/scsi/libsas/sas_scsi_host.c b/drivers/scsi/libsas/sas_scsi_host.c
index 744838780ada..1c558d3bce18 100644
--- a/drivers/scsi/libsas/sas_scsi_host.c
+++ b/drivers/scsi/libsas/sas_scsi_host.c
@@ -717,7 +717,7 @@ int sas_ioctl(struct scsi_device *sdev, int cmd, void __user *arg)
717 struct domain_device *dev = sdev_to_domain_dev(sdev); 717 struct domain_device *dev = sdev_to_domain_dev(sdev);
718 718
719 if (dev_is_sata(dev)) 719 if (dev_is_sata(dev))
720 return ata_scsi_ioctl(sdev, cmd, arg); 720 return ata_sas_scsi_ioctl(dev->sata_dev.ap, sdev, cmd, arg);
721 721
722 return -EINVAL; 722 return -EINVAL;
723} 723}
diff --git a/include/linux/libata.h b/include/linux/libata.h
index b6b8a7f3ec66..2c6bd66209ff 100644
--- a/include/linux/libata.h
+++ b/include/linux/libata.h
@@ -401,12 +401,14 @@ enum {
401 ATA_TIMING_CYC8B, 401 ATA_TIMING_CYC8B,
402 ATA_TIMING_ACTIVE = (1 << 4), 402 ATA_TIMING_ACTIVE = (1 << 4),
403 ATA_TIMING_RECOVER = (1 << 5), 403 ATA_TIMING_RECOVER = (1 << 5),
404 ATA_TIMING_CYCLE = (1 << 6), 404 ATA_TIMING_DMACK_HOLD = (1 << 6),
405 ATA_TIMING_UDMA = (1 << 7), 405 ATA_TIMING_CYCLE = (1 << 7),
406 ATA_TIMING_UDMA = (1 << 8),
406 ATA_TIMING_ALL = ATA_TIMING_SETUP | ATA_TIMING_ACT8B | 407 ATA_TIMING_ALL = ATA_TIMING_SETUP | ATA_TIMING_ACT8B |
407 ATA_TIMING_REC8B | ATA_TIMING_CYC8B | 408 ATA_TIMING_REC8B | ATA_TIMING_CYC8B |
408 ATA_TIMING_ACTIVE | ATA_TIMING_RECOVER | 409 ATA_TIMING_ACTIVE | ATA_TIMING_RECOVER |
409 ATA_TIMING_CYCLE | ATA_TIMING_UDMA, 410 ATA_TIMING_DMACK_HOLD | ATA_TIMING_CYCLE |
411 ATA_TIMING_UDMA,
410}; 412};
411 413
412enum ata_xfer_mask { 414enum ata_xfer_mask {
@@ -866,6 +868,7 @@ struct ata_timing {
866 unsigned short cyc8b; /* t0 for 8-bit I/O */ 868 unsigned short cyc8b; /* t0 for 8-bit I/O */
867 unsigned short active; /* t2 or tD */ 869 unsigned short active; /* t2 or tD */
868 unsigned short recover; /* t2i or tK */ 870 unsigned short recover; /* t2i or tK */
871 unsigned short dmack_hold; /* tj */
869 unsigned short cycle; /* t0 */ 872 unsigned short cycle; /* t0 */
870 unsigned short udma; /* t2CYCTYP/2 */ 873 unsigned short udma; /* t2CYCTYP/2 */
871}; 874};
@@ -927,6 +930,8 @@ extern void ata_host_init(struct ata_host *, struct device *,
927extern int ata_scsi_detect(struct scsi_host_template *sht); 930extern int ata_scsi_detect(struct scsi_host_template *sht);
928extern int ata_scsi_ioctl(struct scsi_device *dev, int cmd, void __user *arg); 931extern int ata_scsi_ioctl(struct scsi_device *dev, int cmd, void __user *arg);
929extern int ata_scsi_queuecmd(struct scsi_cmnd *cmd, void (*done)(struct scsi_cmnd *)); 932extern int ata_scsi_queuecmd(struct scsi_cmnd *cmd, void (*done)(struct scsi_cmnd *));
933extern int ata_sas_scsi_ioctl(struct ata_port *ap, struct scsi_device *dev,
934 int cmd, void __user *arg);
930extern void ata_sas_port_destroy(struct ata_port *); 935extern void ata_sas_port_destroy(struct ata_port *);
931extern struct ata_port *ata_sas_port_alloc(struct ata_host *, 936extern struct ata_port *ata_sas_port_alloc(struct ata_host *,
932 struct ata_port_info *, struct Scsi_Host *); 937 struct ata_port_info *, struct Scsi_Host *);
generated by cgit v1.2.2 (git 2.25.0) at 2025-12-25 19:57:56 -0500