diff options
| -rw-r--r-- | drivers/ide/pci/sgiioc4.c | 29 |
1 files changed, 12 insertions, 17 deletions
diff --git a/drivers/ide/pci/sgiioc4.c b/drivers/ide/pci/sgiioc4.c index ec48decb174..47d6e0492dd 100644 --- a/drivers/ide/pci/sgiioc4.c +++ b/drivers/ide/pci/sgiioc4.c @@ -327,15 +327,21 @@ sgiioc4_INB(unsigned long port) return reg; } +static void __devinit ide_init_sgiioc4(ide_hwif_t *); + /* Creates a dma map for the scatter-gather list entries */ static int __devinit -ide_dma_sgiioc4(ide_hwif_t * hwif, unsigned long dma_base) +ide_dma_sgiioc4(ide_hwif_t *hwif, const struct ide_port_info *d) { struct pci_dev *dev = to_pci_dev(hwif->dev); + unsigned long dma_base = pci_resource_start(dev, 0) + IOC4_DMA_OFFSET; void __iomem *virt_dma_base; int num_ports = sizeof (ioc4_dma_regs_t); void *pad; + if (dma_base == 0) + return -1; + printk(KERN_INFO "%s: BM-DMA at 0x%04lx-0x%04lx\n", hwif->name, dma_base, dma_base + num_ports - 1); @@ -371,6 +377,7 @@ ide_dma_sgiioc4(ide_hwif_t * hwif, unsigned long dma_base) if (pad) { ide_set_hwifdata(hwif, pad); + ide_init_sgiioc4(hwif); return 0; } @@ -551,11 +558,6 @@ static int sgiioc4_ide_dma_setup(ide_drive_t *drive) static void __devinit ide_init_sgiioc4(ide_hwif_t * hwif) { - hwif->INB = &sgiioc4_INB; - - if (hwif->dma_base == 0) - return; - hwif->dma_host_set = &sgiioc4_dma_host_set; hwif->dma_setup = &sgiioc4_ide_dma_setup; hwif->dma_start = &sgiioc4_ide_dma_start; @@ -575,16 +577,16 @@ static const struct ide_port_ops sgiioc4_port_ops = { static const struct ide_port_info sgiioc4_port_info __devinitdata = { .chipset = ide_pci, + .init_dma = ide_dma_sgiioc4, .port_ops = &sgiioc4_port_ops, - .host_flags = IDE_HFLAG_NO_DMA | /* no SFF-style DMA */ - IDE_HFLAG_NO_AUTOTUNE, + .host_flags = IDE_HFLAG_NO_AUTOTUNE, .mwdma_mask = ATA_MWDMA2_ONLY, }; static int __devinit sgiioc4_ide_setup_pci_device(struct pci_dev *dev) { - unsigned long cmd_base, dma_base, irqport; + unsigned long cmd_base, irqport; unsigned long bar0, cmd_phys_base, ctl; void __iomem *virt_base; ide_hwif_t *hwif; @@ -610,7 +612,6 @@ sgiioc4_ide_setup_pci_device(struct pci_dev *dev) cmd_base = (unsigned long) virt_base + IOC4_CMD_OFFSET; ctl = (unsigned long) virt_base + IOC4_CTRL_OFFSET; irqport = (unsigned long) virt_base + IOC4_INTR_OFFSET; - dma_base = pci_resource_start(dev, 0) + IOC4_DMA_OFFSET; cmd_phys_base = bar0 + IOC4_CMD_OFFSET; if (!request_mem_region(cmd_phys_base, IOC4_CMD_CTL_BLK_SIZE, @@ -639,13 +640,7 @@ sgiioc4_ide_setup_pci_device(struct pci_dev *dev) /* Initializing chipset IRQ Registers */ writel(0x03, (void __iomem *)(irqport + IOC4_INTR_SET * 4)); - if (dma_base == 0 || ide_dma_sgiioc4(hwif, dma_base)) { - printk(KERN_INFO "%s: %s Bus-Master DMA disabled\n", - hwif->name, DRV_NAME); - d.mwdma_mask = 0; - } - - ide_init_sgiioc4(hwif); + hwif->INB = &sgiioc4_INB; idx[0] = hwif->index; |