]> err.no Git - linux-2.6/blobdiff - drivers/ata/ata_piix.c
sata_via: kill SATA_PATA_SHARING register handling
[linux-2.6] / drivers / ata / ata_piix.c
index d9fa329fd157741f12b83be996e8b7d419052044..8dc15a6cea72c55d6018c438b47b5b09c9cddb97 100644 (file)
 #include <linux/device.h>
 #include <scsi/scsi_host.h>
 #include <linux/libata.h>
+#include <linux/dmi.h>
 
 #define DRV_NAME       "ata_piix"
-#define DRV_VERSION    "2.11"
+#define DRV_VERSION    "2.12"
 
 enum {
        PIIX_IOCFG              = 0x54, /* IDE I/O configuration register */
@@ -122,13 +123,13 @@ enum {
        ich_pata_33             = 1,    /* ICH up to UDMA 33 only */
        ich_pata_66             = 2,    /* ICH up to 66 Mhz */
        ich_pata_100            = 3,    /* ICH up to UDMA 100 */
-       ich_pata_133            = 4,    /* ICH up to UDMA 133 */
        ich5_sata               = 5,
        ich6_sata               = 6,
        ich6_sata_ahci          = 7,
        ich6m_sata_ahci         = 8,
        ich8_sata_ahci          = 9,
        piix_pata_mwdma         = 10,   /* PIIX3 MWDMA only */
+       tolapai_sata_ahci       = 11,
 
        /* constants for mapping table */
        P0                      = 0,  /* port 0 */
@@ -140,6 +141,9 @@ enum {
        RV                      = -3, /* reserved */
 
        PIIX_AHCI_DEVICE        = 6,
+
+       /* host->flags bits */
+       PIIX_HOST_BROKEN_SUSPEND = (1 << 24),
 };
 
 struct piix_map_db {
@@ -159,6 +163,10 @@ static void piix_set_piomode (struct ata_port *ap, struct ata_device *adev);
 static void piix_set_dmamode (struct ata_port *ap, struct ata_device *adev);
 static void ich_set_dmamode (struct ata_port *ap, struct ata_device *adev);
 static int ich_pata_cable_detect(struct ata_port *ap);
+#ifdef CONFIG_PM
+static int piix_pci_device_suspend(struct pci_dev *pdev, pm_message_t mesg);
+static int piix_pci_device_resume(struct pci_dev *pdev);
+#endif
 
 static unsigned int in_module_init = 1;
 
@@ -190,7 +198,7 @@ static const struct pci_device_id piix_pci_tbl[] = {
        { 0x8086, 0x24CA, PCI_ANY_ID, PCI_ANY_ID, 0, 0, ich_pata_100 },
        { 0x8086, 0x24CB, PCI_ANY_ID, PCI_ANY_ID, 0, 0, ich_pata_100 },
        /* Intel ICH5 */
-       { 0x8086, 0x24DB, PCI_ANY_ID, PCI_ANY_ID, 0, 0, ich_pata_133 },
+       { 0x8086, 0x24DB, PCI_ANY_ID, PCI_ANY_ID, 0, 0, ich_pata_100 },
        /* C-ICH (i810E2) */
        { 0x8086, 0x245B, PCI_ANY_ID, PCI_ANY_ID, 0, 0, ich_pata_100 },
        /* ESB (855GME/875P + 6300ESB) UDMA 100  */
@@ -198,7 +206,7 @@ static const struct pci_device_id piix_pci_tbl[] = {
        /* ICH6 (and 6) (i915) UDMA 100 */
        { 0x8086, 0x266F, PCI_ANY_ID, PCI_ANY_ID, 0, 0, ich_pata_100 },
        /* ICH7/7-R (i945, i975) UDMA 100*/
-       { 0x8086, 0x27DF, PCI_ANY_ID, PCI_ANY_ID, 0, 0, ich_pata_133 },
+       { 0x8086, 0x27DF, PCI_ANY_ID, PCI_ANY_ID, 0, 0, ich_pata_100 },
        { 0x8086, 0x269E, PCI_ANY_ID, PCI_ANY_ID, 0, 0, ich_pata_100 },
        /* ICH8 Mobile PATA Controller */
        { 0x8086, 0x2850, PCI_ANY_ID, PCI_ANY_ID, 0, 0, ich_pata_100 },
@@ -245,6 +253,8 @@ static const struct pci_device_id piix_pci_tbl[] = {
        { 0x8086, 0x292d, PCI_ANY_ID, PCI_ANY_ID, 0, 0, ich8_sata_ahci },
        /* SATA Controller IDE (ICH9M) */
        { 0x8086, 0x292e, PCI_ANY_ID, PCI_ANY_ID, 0, 0, ich8_sata_ahci },
+       /* SATA Controller IDE (Tolapai) */
+       { 0x8086, 0x5028, PCI_ANY_ID, PCI_ANY_ID, 0, 0, tolapai_sata_ahci },
 
        { }     /* terminate list */
 };
@@ -255,8 +265,8 @@ static struct pci_driver piix_pci_driver = {
        .probe                  = piix_init_one,
        .remove                 = ata_pci_remove_one,
 #ifdef CONFIG_PM
-       .suspend                = ata_pci_device_suspend,
-       .resume                 = ata_pci_device_resume,
+       .suspend                = piix_pci_device_suspend,
+       .resume                 = piix_pci_device_resume,
 #endif
 };
 
@@ -279,7 +289,6 @@ static struct scsi_host_template piix_sht = {
 };
 
 static const struct ata_port_operations piix_pata_ops = {
-       .port_disable           = ata_port_disable,
        .set_piomode            = piix_set_piomode,
        .set_dmamode            = piix_set_dmamode,
        .mode_filter            = ata_pci_default_filter,
@@ -307,13 +316,11 @@ static const struct ata_port_operations piix_pata_ops = {
        .irq_handler            = ata_interrupt,
        .irq_clear              = ata_bmdma_irq_clear,
        .irq_on                 = ata_irq_on,
-       .irq_ack                = ata_irq_ack,
 
        .port_start             = ata_port_start,
 };
 
 static const struct ata_port_operations ich_pata_ops = {
-       .port_disable           = ata_port_disable,
        .set_piomode            = piix_set_piomode,
        .set_dmamode            = ich_set_dmamode,
        .mode_filter            = ata_pci_default_filter,
@@ -341,14 +348,11 @@ static const struct ata_port_operations ich_pata_ops = {
        .irq_handler            = ata_interrupt,
        .irq_clear              = ata_bmdma_irq_clear,
        .irq_on                 = ata_irq_on,
-       .irq_ack                = ata_irq_ack,
 
        .port_start             = ata_port_start,
 };
 
 static const struct ata_port_operations piix_sata_ops = {
-       .port_disable           = ata_port_disable,
-
        .tf_load                = ata_tf_load,
        .tf_read                = ata_tf_read,
        .check_status           = ata_check_status,
@@ -371,7 +375,6 @@ static const struct ata_port_operations piix_sata_ops = {
        .irq_handler            = ata_interrupt,
        .irq_clear              = ata_bmdma_irq_clear,
        .irq_on                 = ata_irq_on,
-       .irq_ack                = ata_irq_ack,
 
        .port_start             = ata_port_start,
 };
@@ -428,7 +431,19 @@ static const struct piix_map_db ich8_map_db = {
                /* PM   PS   SM   SS       MAP */
                {  P0,  P2,  P1,  P3 }, /* 00b (hardwired when in AHCI) */
                {  RV,  RV,  RV,  RV },
-               {  IDE,  IDE,  NA,  NA }, /* 10b (IDE mode) */
+               {  P0,  P2, IDE, IDE }, /* 10b (IDE mode) */
+               {  RV,  RV,  RV,  RV },
+       },
+};
+
+static const struct piix_map_db tolapai_map_db = {
+       .mask = 0x3,
+       .port_enable = 0x3,
+       .map = {
+               /* PM   PS   SM   SS       MAP */
+               {  P0,  NA,  P1,  NA }, /* 00b */
+               {  RV,  RV,  RV,  RV }, /* 01b */
+               {  RV,  RV,  RV,  RV }, /* 10b */
                {  RV,  RV,  RV,  RV },
        },
 };
@@ -439,10 +454,11 @@ static const struct piix_map_db *piix_map_db_table[] = {
        [ich6_sata_ahci]        = &ich6_map_db,
        [ich6m_sata_ahci]       = &ich6m_map_db,
        [ich8_sata_ahci]        = &ich8_map_db,
+       [tolapai_sata_ahci]     = &tolapai_map_db,
 };
 
 static struct ata_port_info piix_port_info[] = {
-       /* piix_pata_33: 0:  PIIX4 at 33MHz */
+       [piix_pata_33] =        /* PIIX4 at 33MHz */
        {
                .sht            = &piix_sht,
                .flags          = PIIX_PATA_FLAGS,
@@ -452,7 +468,7 @@ static struct ata_port_info piix_port_info[] = {
                .port_ops       = &piix_pata_ops,
        },
 
-       /* ich_pata_33: 1       ICH0 - ICH at 33Mhz*/
+       [ich_pata_33] =         /* ICH0 - ICH at 33Mhz*/
        {
                .sht            = &piix_sht,
                .flags          = PIIX_PATA_FLAGS,
@@ -461,7 +477,8 @@ static struct ata_port_info piix_port_info[] = {
                .udma_mask      = ATA_UDMA2, /* UDMA33 */
                .port_ops       = &ich_pata_ops,
        },
-       /* ich_pata_66: 2       ICH controllers up to 66MHz */
+
+       [ich_pata_66] =         /* ICH controllers up to 66MHz */
        {
                .sht            = &piix_sht,
                .flags          = PIIX_PATA_FLAGS,
@@ -471,7 +488,7 @@ static struct ata_port_info piix_port_info[] = {
                .port_ops       = &ich_pata_ops,
        },
 
-       /* ich_pata_100: 3 */
+       [ich_pata_100] =
        {
                .sht            = &piix_sht,
                .flags          = PIIX_PATA_FLAGS | PIIX_FLAG_CHECKINTR,
@@ -481,17 +498,7 @@ static struct ata_port_info piix_port_info[] = {
                .port_ops       = &ich_pata_ops,
        },
 
-       /* ich_pata_133: 4      ICH with full UDMA6 */
-       {
-               .sht            = &piix_sht,
-               .flags          = PIIX_PATA_FLAGS | PIIX_FLAG_CHECKINTR,
-               .pio_mask       = 0x1f, /* pio 0-4 */
-               .mwdma_mask     = 0x06, /* Check: maybe 0x07  */
-               .udma_mask      = ATA_UDMA6, /* UDMA133 */
-               .port_ops       = &ich_pata_ops,
-       },
-
-       /* ich5_sata: 5 */
+       [ich5_sata] =
        {
                .sht            = &piix_sht,
                .flags          = PIIX_SATA_FLAGS,
@@ -501,7 +508,7 @@ static struct ata_port_info piix_port_info[] = {
                .port_ops       = &piix_sata_ops,
        },
 
-       /* ich6_sata: 6 */
+       [ich6_sata] =
        {
                .sht            = &piix_sht,
                .flags          = PIIX_SATA_FLAGS | PIIX_FLAG_SCR,
@@ -511,7 +518,7 @@ static struct ata_port_info piix_port_info[] = {
                .port_ops       = &piix_sata_ops,
        },
 
-       /* ich6_sata_ahci: 7 */
+       [ich6_sata_ahci] =
        {
                .sht            = &piix_sht,
                .flags          = PIIX_SATA_FLAGS | PIIX_FLAG_SCR |
@@ -522,7 +529,7 @@ static struct ata_port_info piix_port_info[] = {
                .port_ops       = &piix_sata_ops,
        },
 
-       /* ich6m_sata_ahci: 8 */
+       [ich6m_sata_ahci] =
        {
                .sht            = &piix_sht,
                .flags          = PIIX_SATA_FLAGS | PIIX_FLAG_SCR |
@@ -533,7 +540,7 @@ static struct ata_port_info piix_port_info[] = {
                .port_ops       = &piix_sata_ops,
        },
 
-       /* ich8_sata_ahci: 9 */
+       [ich8_sata_ahci] =
        {
                .sht            = &piix_sht,
                .flags          = PIIX_SATA_FLAGS | PIIX_FLAG_SCR |
@@ -544,7 +551,7 @@ static struct ata_port_info piix_port_info[] = {
                .port_ops       = &piix_sata_ops,
        },
 
-       /* piix_pata_mwdma: 10:  PIIX3 MWDMA only */
+       [piix_pata_mwdma] =     /* PIIX3 MWDMA only */
        {
                .sht            = &piix_sht,
                .flags          = PIIX_PATA_FLAGS,
@@ -552,6 +559,17 @@ static struct ata_port_info piix_port_info[] = {
                .mwdma_mask     = 0x06, /* mwdma1-2 ?? CHECK 0 should be ok but slow */
                .port_ops       = &piix_pata_ops,
        },
+
+       [tolapai_sata_ahci] =
+       {
+               .sht            = &piix_sht,
+               .flags          = PIIX_SATA_FLAGS | PIIX_FLAG_SCR |
+                                 PIIX_FLAG_AHCI,
+               .pio_mask       = 0x1f, /* pio0-4 */
+               .mwdma_mask     = 0x07, /* mwdma0-2 */
+               .udma_mask      = ATA_UDMA6,
+               .port_ops       = &piix_sata_ops,
+       },
 };
 
 static struct pci_bits piix_enable_bits[] = {
@@ -622,19 +640,20 @@ static int ich_pata_cable_detect(struct ata_port *ap)
 
 /**
  *     piix_pata_prereset - prereset for PATA host controller
- *     @ap: Target port
+ *     @link: Target link
  *     @deadline: deadline jiffies for the operation
  *
  *     LOCKING:
  *     None (inherited from caller).
  */
-static int piix_pata_prereset(struct ata_port *ap, unsigned long deadline)
+static int piix_pata_prereset(struct ata_link *link, unsigned long deadline)
 {
+       struct ata_port *ap = link->ap;
        struct pci_dev *pdev = to_pci_dev(ap->host->dev);
 
        if (!pci_test_config_bits(pdev, &piix_enable_bits[ap->port_no]))
                return -ENOENT;
-       return ata_std_prereset(ap, deadline);
+       return ata_std_prereset(link, deadline);
 }
 
 static void piix_pata_error_handler(struct ata_port *ap)
@@ -881,6 +900,137 @@ static void ich_set_dmamode (struct ata_port *ap, struct ata_device *adev)
        do_pata_set_dmamode(ap, adev, 1);
 }
 
+#ifdef CONFIG_PM
+static int piix_broken_suspend(void)
+{
+       static const struct dmi_system_id sysids[] = {
+               {
+                       .ident = "TECRA M3",
+                       .matches = {
+                               DMI_MATCH(DMI_SYS_VENDOR, "TOSHIBA"),
+                               DMI_MATCH(DMI_PRODUCT_NAME, "TECRA M3"),
+                       },
+               },
+               {
+                       .ident = "TECRA M5",
+                       .matches = {
+                               DMI_MATCH(DMI_SYS_VENDOR, "TOSHIBA"),
+                               DMI_MATCH(DMI_PRODUCT_NAME, "TECRA M5"),
+                       },
+               },
+               {
+                       .ident = "TECRA M7",
+                       .matches = {
+                               DMI_MATCH(DMI_SYS_VENDOR, "TOSHIBA"),
+                               DMI_MATCH(DMI_PRODUCT_NAME, "TECRA M7"),
+                       },
+               },
+               {
+                       .ident = "Satellite U200",
+                       .matches = {
+                               DMI_MATCH(DMI_SYS_VENDOR, "TOSHIBA"),
+                               DMI_MATCH(DMI_PRODUCT_NAME, "Satellite U200"),
+                       },
+               },
+               {
+                       .ident = "Satellite U205",
+                       .matches = {
+                               DMI_MATCH(DMI_SYS_VENDOR, "TOSHIBA"),
+                               DMI_MATCH(DMI_PRODUCT_NAME, "Satellite U205"),
+                       },
+               },
+               {
+                       .ident = "Portege M500",
+                       .matches = {
+                               DMI_MATCH(DMI_SYS_VENDOR, "TOSHIBA"),
+                               DMI_MATCH(DMI_PRODUCT_NAME, "PORTEGE M500"),
+                       },
+               },
+
+               { }     /* terminate list */
+       };
+       static const char *oemstrs[] = {
+               "Tecra M3,",
+       };
+       int i;
+
+       if (dmi_check_system(sysids))
+               return 1;
+
+       for (i = 0; i < ARRAY_SIZE(oemstrs); i++)
+               if (dmi_find_device(DMI_DEV_TYPE_OEM_STRING, oemstrs[i], NULL))
+                       return 1;
+
+       return 0;
+}
+
+static int piix_pci_device_suspend(struct pci_dev *pdev, pm_message_t mesg)
+{
+       struct ata_host *host = dev_get_drvdata(&pdev->dev);
+       unsigned long flags;
+       int rc = 0;
+
+       rc = ata_host_suspend(host, mesg);
+       if (rc)
+               return rc;
+
+       /* Some braindamaged ACPI suspend implementations expect the
+        * controller to be awake on entry; otherwise, it burns cpu
+        * cycles and power trying to do something to the sleeping
+        * beauty.
+        */
+       if (piix_broken_suspend() && mesg.event == PM_EVENT_SUSPEND) {
+               pci_save_state(pdev);
+
+               /* mark its power state as "unknown", since we don't
+                * know if e.g. the BIOS will change its device state
+                * when we suspend.
+                */
+               if (pdev->current_state == PCI_D0)
+                       pdev->current_state = PCI_UNKNOWN;
+
+               /* tell resume that it's waking up from broken suspend */
+               spin_lock_irqsave(&host->lock, flags);
+               host->flags |= PIIX_HOST_BROKEN_SUSPEND;
+               spin_unlock_irqrestore(&host->lock, flags);
+       } else
+               ata_pci_device_do_suspend(pdev, mesg);
+
+       return 0;
+}
+
+static int piix_pci_device_resume(struct pci_dev *pdev)
+{
+       struct ata_host *host = dev_get_drvdata(&pdev->dev);
+       unsigned long flags;
+       int rc;
+
+       if (host->flags & PIIX_HOST_BROKEN_SUSPEND) {
+               spin_lock_irqsave(&host->lock, flags);
+               host->flags &= ~PIIX_HOST_BROKEN_SUSPEND;
+               spin_unlock_irqrestore(&host->lock, flags);
+
+               pci_set_power_state(pdev, PCI_D0);
+               pci_restore_state(pdev);
+
+               /* PCI device wasn't disabled during suspend.  Use
+                * pci_reenable_device() to avoid affecting the enable
+                * count.
+                */
+               rc = pci_reenable_device(pdev);
+               if (rc)
+                       dev_printk(KERN_ERR, &pdev->dev, "failed to enable "
+                                  "device after resume (%d)\n", rc);
+       } else
+               rc = ata_pci_device_do_resume(pdev);
+
+       if (rc == 0)
+               ata_host_resume(host);
+
+       return rc;
+}
+#endif
+
 #define AHCI_PCI_BAR 5
 #define AHCI_GLOBAL_CTL 0x04
 #define AHCI_ENABLE (1 << 31)
@@ -1015,6 +1165,41 @@ static void __devinit piix_init_sata_map(struct pci_dev *pdev,
        hpriv->map = map;
 }
 
+static void piix_iocfg_bit18_quirk(struct pci_dev *pdev)
+{
+       static const struct dmi_system_id sysids[] = {
+               {
+                       /* Clevo M570U sets IOCFG bit 18 if the cdrom
+                        * isn't used to boot the system which
+                        * disables the channel.
+                        */
+                       .ident = "M570U",
+                       .matches = {
+                               DMI_MATCH(DMI_SYS_VENDOR, "Clevo Co."),
+                               DMI_MATCH(DMI_PRODUCT_NAME, "M570U"),
+                       },
+               },
+
+               { }     /* terminate list */
+       };
+       u32 iocfg;
+
+       if (!dmi_check_system(sysids))
+               return;
+
+       /* The datasheet says that bit 18 is NOOP but certain systems
+        * seem to use it to disable a channel.  Clear the bit on the
+        * affected systems.
+        */
+       pci_read_config_dword(pdev, PIIX_IOCFG, &iocfg);
+       if (iocfg & (1 << 18)) {
+               dev_printk(KERN_INFO, &pdev->dev,
+                          "applying IOCFG bit18 quirk\n");
+               iocfg &= ~(1 << 18);
+               pci_write_config_dword(pdev, PIIX_IOCFG, iocfg);
+       }
+}
+
 /**
  *     piix_init_one - Register PIIX ATA PCI device with kernel services
  *     @pdev: PCI device to register
@@ -1076,6 +1261,9 @@ static int piix_init_one (struct pci_dev *pdev, const struct pci_device_id *ent)
                              piix_map_db_table[ent->driver_data]);
        }
 
+       /* apply IOCFG bit18 quirk */
+       piix_iocfg_bit18_quirk(pdev);
+
        /* On ICH5, some BIOSen disable the interrupt using the
         * PCI_COMMAND_INTX_DISABLE bit added in PCI 2.3.
         * On ICH6, this bit has the same effect, but only when