7 files changed, 105 insertions, 14 deletions

diff --git a/drivers/pci/quirks.c b/drivers/pci/quirks.c
index 605f0df0bfba..dda6099903c1 100644
--- a/drivers/pci/quirks.c
+++ b/drivers/pci/quirks.c
@@ -1142,6 +1142,9 @@ static void __devinit quirk_intel_ide_combined(struct pci_dev *pdev)
         case 0x27c4:
                 ich = 7;
                 break;
+        case 0x2828:    /* ICH8M */
+                ich = 8;
+                break;
         default:
                 /* we do not handle this PCI device */
                 return;
@@ -1161,7 +1164,7 @@ static void __devinit quirk_intel_ide_combined(struct pci_dev *pdev)
                 else
                         return;                 /* not in combined mode */
         } else {
-                WARN_ON((ich != 6) && (ich != 7));
+                WARN_ON((ich != 6) && (ich != 7) && (ich != 8));
                 tmp &= 0x3;  /* interesting bits 1:0 */
                 if (tmp & (1 << 0))
                         comb = (1 << 2);        /* PATA port 0, SATA port 1 */
diff --git a/drivers/scsi/ahci.c b/drivers/scsi/ahci.c
index d113290b5fc0..19bd346951dd 100644
--- a/drivers/scsi/ahci.c
+++ b/drivers/scsi/ahci.c
@@ -276,6 +276,16 @@ static const struct pci_device_id ahci_pci_tbl[] = {
           board_ahci }, /* ESB2 */
         { PCI_VENDOR_ID_INTEL, 0x27c6, PCI_ANY_ID, PCI_ANY_ID, 0, 0,
           board_ahci }, /* ICH7-M DH */
+        { PCI_VENDOR_ID_INTEL, 0x2821, PCI_ANY_ID, PCI_ANY_ID, 0, 0,
+          board_ahci }, /* ICH8 */
+        { PCI_VENDOR_ID_INTEL, 0x2822, PCI_ANY_ID, PCI_ANY_ID, 0, 0,
+          board_ahci }, /* ICH8 */
+        { PCI_VENDOR_ID_INTEL, 0x2824, PCI_ANY_ID, PCI_ANY_ID, 0, 0,
+          board_ahci }, /* ICH8 */
+        { PCI_VENDOR_ID_INTEL, 0x2829, PCI_ANY_ID, PCI_ANY_ID, 0, 0,
+          board_ahci }, /* ICH8M */
+        { PCI_VENDOR_ID_INTEL, 0x282a, PCI_ANY_ID, PCI_ANY_ID, 0, 0,
+          board_ahci }, /* ICH8M */
         { }     /* terminate list */
 };
 
diff --git a/drivers/scsi/ata_piix.c b/drivers/scsi/ata_piix.c
index 557788ec4eec..fc3ca051ceed 100644
--- a/drivers/scsi/ata_piix.c
+++ b/drivers/scsi/ata_piix.c
@@ -157,6 +157,9 @@ static const struct pci_device_id piix_pci_tbl[] = {
         { 0x8086, 0x27c0, PCI_ANY_ID, PCI_ANY_ID, 0, 0, ich6_sata_ahci },
         { 0x8086, 0x27c4, PCI_ANY_ID, PCI_ANY_ID, 0, 0, ich6_sata_ahci },
         { 0x8086, 0x2680, PCI_ANY_ID, PCI_ANY_ID, 0, 0, ich6_sata_ahci },
+        { 0x8086, 0x2820, PCI_ANY_ID, PCI_ANY_ID, 0, 0, ich6_sata_ahci },
+        { 0x8086, 0x2825, PCI_ANY_ID, PCI_ANY_ID, 0, 0, ich6_sata_ahci },
+        { 0x8086, 0x2828, PCI_ANY_ID, PCI_ANY_ID, 0, 0, ich6_sata_ahci },
 
         { }     /* terminate list */
 };
diff --git a/drivers/scsi/libata-core.c b/drivers/scsi/libata-core.c
index 99bae8369ab2..46c4cdbaee86 100644
--- a/drivers/scsi/libata-core.c
+++ b/drivers/scsi/libata-core.c
@@ -611,6 +611,10 @@ int ata_rwcmd_protocol(struct ata_queued_cmd *qc)
         if (dev->flags & ATA_DFLAG_PIO) {
                 tf->protocol = ATA_PROT_PIO;
                 index = dev->multi_count ? 0 : 8;
+        } else if (lba48 && (qc->ap->flags & ATA_FLAG_PIO_LBA48)) {
+                /* Unable to use DMA due to host limitation */
+                tf->protocol = ATA_PROT_PIO;
+                index = dev->multi_count ? 0 : 4;
         } else {
                 tf->protocol = ATA_PROT_DMA;
                 index = 16;
@@ -1051,18 +1055,22 @@ static unsigned int ata_pio_modes(const struct ata_device *adev)
 {
         u16 modes;
 
-        /* Usual case. Word 53 indicates word 88 is valid */
-        if (adev->id[ATA_ID_FIELD_VALID] & (1 << 2)) {
+        /* Usual case. Word 53 indicates word 64 is valid */
+        if (adev->id[ATA_ID_FIELD_VALID] & (1 << 1)) {
                 modes = adev->id[ATA_ID_PIO_MODES] & 0x03;
                 modes <<= 3;
                 modes |= 0x7;
                 return modes;
         }
 
-        /* If word 88 isn't valid then Word 51 holds the PIO timing number
-           for the maximum. Turn it into a mask and return it */
-        modes = (2 << (adev->id[ATA_ID_OLD_PIO_MODES] & 0xFF)) - 1 ;
+        /* If word 64 isn't valid then Word 51 high byte holds the PIO timing
+           number for the maximum. Turn it into a mask and return it */
+        modes = (2 << ((adev->id[ATA_ID_OLD_PIO_MODES] >> 8) & 0xFF)) - 1 ;
         return modes;
+        /* But wait.. there's more. Design your standards by committee and
+           you too can get a free iordy field to process. However its the 
+           speeds not the modes that are supported... Note drivers using the
+           timing API will get this right anyway */
 }
 
 struct ata_exec_internal_arg {
@@ -1165,6 +1173,39 @@ ata_exec_internal(struct ata_port *ap, struct ata_device *dev,
 }
 
 /**
+ *      ata_pio_need_iordy      -       check if iordy needed
+ *      @adev: ATA device
+ *
+ *      Check if the current speed of the device requires IORDY. Used
+ *      by various controllers for chip configuration.
+ */
+
+unsigned int ata_pio_need_iordy(const struct ata_device *adev)
+{
+        int pio;
+        int speed = adev->pio_mode - XFER_PIO_0;
+
+        if (speed < 2)
+                return 0;
+        if (speed > 2)
+                return 1;
+                
+        /* If we have no drive specific rule, then PIO 2 is non IORDY */
+
+        if (adev->id[ATA_ID_FIELD_VALID] & 2) { /* EIDE */
+                pio = adev->id[ATA_ID_EIDE_PIO];
+                /* Is the speed faster than the drive allows non IORDY ? */
+                if (pio) {
+                        /* This is cycle times not frequency - watch the logic! */
+                        if (pio > 240)  /* PIO2 is 240nS per cycle */
+                                return 1;
+                        return 0;
+                }
+        }
+        return 0;
+}
+
+/**
  *      ata_dev_identify - obtain IDENTIFY x DEVICE page
  *      @ap: port on which device we wish to probe resides
  *      @device: device bus address, starting at zero
@@ -1415,7 +1456,7 @@ void ata_dev_config(struct ata_port *ap, unsigned int i)
                 ap->udma_mask &= ATA_UDMA5;
                 ap->host->max_sectors = ATA_MAX_SECTORS;
                 ap->host->hostt->max_sectors = ATA_MAX_SECTORS;
-                ap->device->flags |= ATA_DFLAG_LOCK_SECTORS;
+                ap->device[i].flags |= ATA_DFLAG_LOCK_SECTORS;
         }
 
         if (ap->ops->dev_config)
@@ -3056,10 +3097,21 @@ static void ata_pio_data_xfer(struct ata_port *ap, unsigned char *buf,
 static void ata_data_xfer(struct ata_port *ap, unsigned char *buf,
                           unsigned int buflen, int do_write)
 {
-        if (ap->flags & ATA_FLAG_MMIO)
-                ata_mmio_data_xfer(ap, buf, buflen, do_write);
-        else
-                ata_pio_data_xfer(ap, buf, buflen, do_write);
+        /* Make the crap hardware pay the costs not the good stuff */
+        if (unlikely(ap->flags & ATA_FLAG_IRQ_MASK)) {
+                unsigned long flags;
+                local_irq_save(flags);
+                if (ap->flags & ATA_FLAG_MMIO)
+                        ata_mmio_data_xfer(ap, buf, buflen, do_write);
+                else
+                        ata_pio_data_xfer(ap, buf, buflen, do_write);
+                local_irq_restore(flags);
+        } else {
+                if (ap->flags & ATA_FLAG_MMIO)
+                        ata_mmio_data_xfer(ap, buf, buflen, do_write);
+                else
+                        ata_pio_data_xfer(ap, buf, buflen, do_write);
+        }
 }
 
 /**
@@ -5122,6 +5174,7 @@ EXPORT_SYMBOL_GPL(ata_dev_id_string);
 EXPORT_SYMBOL_GPL(ata_dev_config);
 EXPORT_SYMBOL_GPL(ata_scsi_simulate);
 
+EXPORT_SYMBOL_GPL(ata_pio_need_iordy);
 EXPORT_SYMBOL_GPL(ata_timing_compute);
 EXPORT_SYMBOL_GPL(ata_timing_merge);
 
diff --git a/drivers/scsi/sata_promise.c b/drivers/scsi/sata_promise.c
index 3d1ea09a06a1..b0b0a69b3563 100644
--- a/drivers/scsi/sata_promise.c
+++ b/drivers/scsi/sata_promise.c
@@ -66,6 +66,7 @@ enum {
         board_2037x             = 0,    /* FastTrak S150 TX2plus */
         board_20319             = 1,    /* FastTrak S150 TX4 */
         board_20619             = 2,    /* FastTrak TX4000 */
+        board_20771             = 3,    /* FastTrak TX2300 */
 
         PDC_HAS_PATA            = (1 << 1), /* PDC20375 has PATA */
 
@@ -190,6 +191,16 @@ static const struct ata_port_info pdc_port_info[] = {
                 .udma_mask      = 0x7f, /* udma0-6 ; FIXME */
                 .port_ops       = &pdc_pata_ops,
         },
+
+        /* board_20771 */
+        {
+                .sht            = &pdc_ata_sht,
+                .host_flags     = PDC_COMMON_FLAGS | ATA_FLAG_SATA,
+                .pio_mask       = 0x1f, /* pio0-4 */
+                .mwdma_mask     = 0x07, /* mwdma0-2 */
+                .udma_mask      = 0x7f, /* udma0-6 ; FIXME */
+                .port_ops       = &pdc_sata_ops,
+        },
 };
 
 static const struct pci_device_id pdc_ata_pci_tbl[] = {
@@ -226,6 +237,8 @@ static const struct pci_device_id pdc_ata_pci_tbl[] = {
         { PCI_VENDOR_ID_PROMISE, 0x6629, PCI_ANY_ID, PCI_ANY_ID, 0, 0,
           board_20619 },
 
+        { PCI_VENDOR_ID_PROMISE, 0x3570, PCI_ANY_ID, PCI_ANY_ID, 0, 0,
+          board_20771 },
         { }     /* terminate list */
 };
 
@@ -706,6 +719,9 @@ static int pdc_ata_init_one (struct pci_dev *pdev, const struct pci_device_id *e
         case board_2037x:
                 probe_ent->n_ports = 2;
                 break;
+        case board_20771:
+                probe_ent->n_ports = 2;
+                break;
         case board_20619:
                 probe_ent->n_ports = 4;
 
diff --git a/drivers/scsi/sata_svw.c b/drivers/scsi/sata_svw.c
index 668373590aa4..d8472563fde8 100644
--- a/drivers/scsi/sata_svw.c
+++ b/drivers/scsi/sata_svw.c
@@ -470,6 +470,7 @@ static const struct pci_device_id k2_sata_pci_tbl[] = {
         { 0x1166, 0x0241, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 4 },
         { 0x1166, 0x0242, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 8 },
         { 0x1166, 0x024a, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 4 },
+        { 0x1166, 0x024b, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 4 },
         { }
 };
 
diff --git a/include/linux/libata.h b/include/linux/libata.h
index a43c95f8f968..9e5db2949c58 100644
--- a/include/linux/libata.h
+++ b/include/linux/libata.h
@@ -126,16 +126,19 @@ enum {
 
         ATA_FLAG_SUSPENDED      = (1 << 12), /* port is suspended */
 
+        ATA_FLAG_PIO_LBA48      = (1 << 13), /* Host DMA engine is LBA28 only */
+        ATA_FLAG_IRQ_MASK       = (1 << 14), /* Mask IRQ in PIO xfers */
+
         ATA_QCFLAG_ACTIVE       = (1 << 1), /* cmd not yet ack'd to scsi lyer */
         ATA_QCFLAG_SG           = (1 << 3), /* have s/g table? */
         ATA_QCFLAG_SINGLE       = (1 << 4), /* no s/g, just a single buffer */
         ATA_QCFLAG_DMAMAP       = ATA_QCFLAG_SG | ATA_QCFLAG_SINGLE,
 
         /* various lengths of time */
-        ATA_TMOUT_EDD           = 5 * HZ,       /* hueristic */
+        ATA_TMOUT_EDD           = 5 * HZ,       /* heuristic */
         ATA_TMOUT_PIO           = 30 * HZ,
-        ATA_TMOUT_BOOT          = 30 * HZ,      /* hueristic */
-        ATA_TMOUT_BOOT_QUICK    = 7 * HZ,       /* hueristic */
+        ATA_TMOUT_BOOT          = 30 * HZ,      /* heuristic */
+        ATA_TMOUT_BOOT_QUICK    = 7 * HZ,       /* heuristic */
         ATA_TMOUT_CDB           = 30 * HZ,
         ATA_TMOUT_CDB_QUICK     = 5 * HZ,
         ATA_TMOUT_INTERNAL      = 30 * HZ,
@@ -499,6 +502,8 @@ extern int ata_scsi_slave_config(struct scsi_device *sdev);
 /*
  * Timing helpers
  */
+
+extern unsigned int ata_pio_need_iordy(const struct ata_device *);
 extern int ata_timing_compute(struct ata_device *, unsigned short,
                               struct ata_timing *, int, int);
 extern void ata_timing_merge(const struct ata_timing *,