diff options
Diffstat (limited to 'drivers/ide/pci/sgiioc4.c')
-rw-r--r-- | drivers/ide/pci/sgiioc4.c | 89 |
1 files changed, 45 insertions, 44 deletions
diff --git a/drivers/ide/pci/sgiioc4.c b/drivers/ide/pci/sgiioc4.c index d396b29..c292e1d 100644 --- a/drivers/ide/pci/sgiioc4.c +++ b/drivers/ide/pci/sgiioc4.c @@ -34,6 +34,8 @@ #include <linux/ide.h> +#define DRV_NAME "SGIIOC4" + /* IOC4 Specific Definitions */ #define IOC4_CMD_OFFSET 0x100 #define IOC4_CTRL_OFFSET 0x120 @@ -289,15 +291,26 @@ static void sgiioc4_dma_off_quietly(ide_drive_t *drive) drive->hwif->dma_host_off(drive); } +static int sgiioc4_speedproc(ide_drive_t *drive, const u8 speed) +{ + if (speed != XFER_MW_DMA_2) + return 1; + + return ide_config_drive_speed(drive, speed); +} + static int sgiioc4_ide_dma_check(ide_drive_t *drive) { - /* FIXME: check for available DMA modes */ - if (ide_config_drive_speed(drive, XFER_MW_DMA_2) != 0) { - printk(KERN_WARNING "%s: couldn't set MWDMA2 mode, " - "using PIO instead\n", drive->name); - return -1; - } else + if (ide_tune_dma(drive)) return 0; + + /* + * ->set_pio_mode is not implemented currently + * so this is just for the completness + */ + ide_set_max_pio(drive); + + return -1; } /* returns 1 if dma irq issued, 0 otherwise */ @@ -353,7 +366,7 @@ sgiioc4_INB(unsigned long port) } /* Creates a dma map for the scatter-gather list entries */ -static void __devinit +static int __devinit ide_dma_sgiioc4(ide_hwif_t * hwif, unsigned long dma_base) { void __iomem *virt_dma_base; @@ -369,7 +382,7 @@ ide_dma_sgiioc4(ide_hwif_t * hwif, unsigned long dma_base) "ALREADY in use\n", __FUNCTION__, hwif->name, (void *) dma_base, (void *) dma_base + num_ports - 1); - goto dma_alloc_failure; + return -1; } virt_dma_base = ioremap(dma_base, num_ports); @@ -395,7 +408,7 @@ ide_dma_sgiioc4(ide_hwif_t * hwif, unsigned long dma_base) if (pad) { ide_set_hwifdata(hwif, pad); - return; + return 0; } pci_free_consistent(hwif->pci_dev, @@ -413,10 +426,7 @@ dma_pci_alloc_failure: dma_remap_failure: release_mem_region(dma_base, num_ports); -dma_alloc_failure: - /* Disable DMA because we couldnot allocate any DMA maps */ - hwif->autodma = 0; - hwif->atapi_dma = 0; + return -1; } /* Initializes the IOC4 DMA Engine */ @@ -581,13 +591,11 @@ static void __devinit ide_init_sgiioc4(ide_hwif_t * hwif) { hwif->mmio = 1; - hwif->autodma = 1; hwif->atapi_dma = 1; - hwif->ultra_mask = 0x0; /* Disable Ultra DMA */ - hwif->mwdma_mask = 0x2; /* Multimode-2 DMA */ - hwif->swdma_mask = 0x2; - hwif->tuneproc = NULL; /* Sets timing for PIO mode */ - hwif->speedproc = NULL; /* Sets timing for DMA &/or PIO modes */ + hwif->mwdma_mask = 0x04; + hwif->pio_mask = 0x00; + hwif->set_pio_mode = NULL; /* Sets timing for PIO mode */ + hwif->speedproc = &sgiioc4_speedproc; hwif->selectproc = NULL;/* Use the default routine to select drive */ hwif->reset_poll = NULL;/* No HBA specific reset_poll needed */ hwif->pre_reset = NULL; /* No HBA specific pre_set needed */ @@ -614,7 +622,7 @@ ide_init_sgiioc4(ide_hwif_t * hwif) } static int __devinit -sgiioc4_ide_setup_pci_device(struct pci_dev *dev, ide_pci_device_t * d) +sgiioc4_ide_setup_pci_device(struct pci_dev *dev) { unsigned long cmd_base, dma_base, irqport; unsigned long bar0, cmd_phys_base, ctl; @@ -631,7 +639,8 @@ sgiioc4_ide_setup_pci_device(struct pci_dev *dev, ide_pci_device_t * d) break; } if (h == MAX_HWIFS) { - printk(KERN_ERR "%s: too many IDE interfaces, no room in table\n", d->name); + printk(KERN_ERR "%s: too many IDE interfaces, no room in table\n", + DRV_NAME); return -ENOMEM; } @@ -640,7 +649,7 @@ sgiioc4_ide_setup_pci_device(struct pci_dev *dev, ide_pci_device_t * d) virt_base = ioremap(bar0, pci_resource_len(dev, 0)); if (virt_base == NULL) { printk(KERN_ERR "%s: Unable to remap BAR 0 address: 0x%lx\n", - d->name, bar0); + DRV_NAME, bar0); return -ENOMEM; } cmd_base = (unsigned long) virt_base + IOC4_CMD_OFFSET; @@ -671,7 +680,6 @@ sgiioc4_ide_setup_pci_device(struct pci_dev *dev, ide_pci_device_t * d) hwif->chipset = ide_pci; hwif->pci_dev = dev; hwif->channel = 0; /* Single Channel chip */ - hwif->cds = (struct ide_pci_device_s *) d; hwif->gendev.parent = &dev->dev;/* setup proper ancestral information */ /* The IOC4 uses MMIO rather than Port IO. */ @@ -682,11 +690,14 @@ sgiioc4_ide_setup_pci_device(struct pci_dev *dev, ide_pci_device_t * d) ide_init_sgiioc4(hwif); - if (dma_base) - ide_dma_sgiioc4(hwif, dma_base); - else + hwif->autodma = 0; + + if (dma_base && ide_dma_sgiioc4(hwif, dma_base) == 0) { + hwif->autodma = 1; + hwif->drives[1].autodma = hwif->drives[0].autodma = 1; + } else printk(KERN_INFO "%s: %s Bus-Master DMA disabled\n", - hwif->name, d->name); + hwif->name, DRV_NAME); if (probe_hwif_init(hwif)) return -EIO; @@ -698,7 +709,7 @@ sgiioc4_ide_setup_pci_device(struct pci_dev *dev, ide_pci_device_t * d) } static unsigned int __devinit -pci_init_sgiioc4(struct pci_dev *dev, ide_pci_device_t * d) +pci_init_sgiioc4(struct pci_dev *dev) { unsigned int class_rev; int ret; @@ -706,30 +717,20 @@ pci_init_sgiioc4(struct pci_dev *dev, ide_pci_device_t * d) pci_read_config_dword(dev, PCI_CLASS_REVISION, &class_rev); class_rev &= 0xff; printk(KERN_INFO "%s: IDE controller at PCI slot %s, revision %d\n", - d->name, pci_name(dev), class_rev); + DRV_NAME, pci_name(dev), class_rev); if (class_rev < IOC4_SUPPORTED_FIRMWARE_REV) { printk(KERN_ERR "Skipping %s IDE controller in slot %s: " - "firmware is obsolete - please upgrade to revision" - "46 or higher\n", d->name, pci_name(dev)); + "firmware is obsolete - please upgrade to " + "revision46 or higher\n", + DRV_NAME, pci_name(dev)); ret = -EAGAIN; goto out; } - ret = sgiioc4_ide_setup_pci_device(dev, d); + ret = sgiioc4_ide_setup_pci_device(dev); out: return ret; } -static ide_pci_device_t sgiioc4_chipset __devinitdata = { - /* Channel 0 */ - .name = "SGIIOC4", - .init_hwif = ide_init_sgiioc4, - .init_dma = ide_dma_sgiioc4, - .channels = 1, - .autodma = AUTODMA, - /* SGI IOC4 doesn't have enablebits. */ - .bootable = ON_BOARD, -}; - int ioc4_ide_attach_one(struct ioc4_driver_data *idd) { @@ -739,7 +740,7 @@ ioc4_ide_attach_one(struct ioc4_driver_data *idd) if (idd->idd_variant == IOC4_VARIANT_PCI_RT) return 0; - return pci_init_sgiioc4(idd->idd_pdev, &sgiioc4_chipset); + return pci_init_sgiioc4(idd->idd_pdev); } static struct ioc4_submodule ioc4_ide_submodule = { |