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@@ -34,6 +34,8 @@
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#include <linux/ide.h>
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+#define DRV_NAME "SGIIOC4"
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+
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/* IOC4 Specific Definitions */
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#define IOC4_CMD_OFFSET 0x100
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#define IOC4_CTRL_OFFSET 0x120
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@@ -289,15 +291,26 @@ static void sgiioc4_dma_off_quietly(ide_drive_t *drive)
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drive->hwif->dma_host_off(drive);
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}
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+static int sgiioc4_speedproc(ide_drive_t *drive, const u8 speed)
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+{
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+ if (speed != XFER_MW_DMA_2)
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+ return 1;
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+
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+ return ide_config_drive_speed(drive, speed);
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+}
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+
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static int sgiioc4_ide_dma_check(ide_drive_t *drive)
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{
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- /* FIXME: check for available DMA modes */
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- if (ide_config_drive_speed(drive, XFER_MW_DMA_2) != 0) {
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- printk(KERN_WARNING "%s: couldn't set MWDMA2 mode, "
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- "using PIO instead\n", drive->name);
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- return -1;
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- } else
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+ if (ide_tune_dma(drive))
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return 0;
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+
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+ /*
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+ * ->set_pio_mode is not implemented currently
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+ * so this is just for the completness
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+ */
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+ ide_set_max_pio(drive);
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+
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+ return -1;
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}
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/* returns 1 if dma irq issued, 0 otherwise */
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@@ -353,7 +366,7 @@ sgiioc4_INB(unsigned long port)
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}
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/* Creates a dma map for the scatter-gather list entries */
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-static void __devinit
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+static int __devinit
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ide_dma_sgiioc4(ide_hwif_t * hwif, unsigned long dma_base)
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{
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void __iomem *virt_dma_base;
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@@ -369,7 +382,7 @@ ide_dma_sgiioc4(ide_hwif_t * hwif, unsigned long dma_base)
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"ALREADY in use\n",
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__FUNCTION__, hwif->name, (void *) dma_base,
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(void *) dma_base + num_ports - 1);
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- goto dma_alloc_failure;
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+ return -1;
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}
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virt_dma_base = ioremap(dma_base, num_ports);
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@@ -395,7 +408,7 @@ ide_dma_sgiioc4(ide_hwif_t * hwif, unsigned long dma_base)
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if (pad) {
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ide_set_hwifdata(hwif, pad);
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- return;
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+ return 0;
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}
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pci_free_consistent(hwif->pci_dev,
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@@ -413,10 +426,7 @@ dma_pci_alloc_failure:
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dma_remap_failure:
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release_mem_region(dma_base, num_ports);
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-dma_alloc_failure:
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- /* Disable DMA because we couldnot allocate any DMA maps */
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- hwif->autodma = 0;
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- hwif->atapi_dma = 0;
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+ return -1;
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}
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/* Initializes the IOC4 DMA Engine */
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@@ -581,14 +591,11 @@ static void __devinit
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ide_init_sgiioc4(ide_hwif_t * hwif)
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{
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hwif->mmio = 1;
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- hwif->autodma = 1;
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hwif->atapi_dma = 1;
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- hwif->ultra_mask = 0x0; /* Disable Ultra DMA */
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- hwif->mwdma_mask = 0x2; /* Multimode-2 DMA */
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- hwif->swdma_mask = 0x2;
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+ hwif->mwdma_mask = 0x04;
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hwif->pio_mask = 0x00;
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hwif->set_pio_mode = NULL; /* Sets timing for PIO mode */
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- hwif->speedproc = NULL; /* Sets timing for DMA &/or PIO modes */
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+ hwif->speedproc = &sgiioc4_speedproc;
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hwif->selectproc = NULL;/* Use the default routine to select drive */
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hwif->reset_poll = NULL;/* No HBA specific reset_poll needed */
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hwif->pre_reset = NULL; /* No HBA specific pre_set needed */
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@@ -615,7 +622,7 @@ ide_init_sgiioc4(ide_hwif_t * hwif)
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}
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static int __devinit
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-sgiioc4_ide_setup_pci_device(struct pci_dev *dev, ide_pci_device_t * d)
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+sgiioc4_ide_setup_pci_device(struct pci_dev *dev)
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{
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unsigned long cmd_base, dma_base, irqport;
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unsigned long bar0, cmd_phys_base, ctl;
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@@ -632,7 +639,8 @@ sgiioc4_ide_setup_pci_device(struct pci_dev *dev, ide_pci_device_t * d)
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break;
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}
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if (h == MAX_HWIFS) {
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- printk(KERN_ERR "%s: too many IDE interfaces, no room in table\n", d->name);
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+ printk(KERN_ERR "%s: too many IDE interfaces, no room in table\n",
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+ DRV_NAME);
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return -ENOMEM;
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}
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@@ -641,7 +649,7 @@ sgiioc4_ide_setup_pci_device(struct pci_dev *dev, ide_pci_device_t * d)
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virt_base = ioremap(bar0, pci_resource_len(dev, 0));
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if (virt_base == NULL) {
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printk(KERN_ERR "%s: Unable to remap BAR 0 address: 0x%lx\n",
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- d->name, bar0);
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+ DRV_NAME, bar0);
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return -ENOMEM;
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}
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cmd_base = (unsigned long) virt_base + IOC4_CMD_OFFSET;
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@@ -672,7 +680,6 @@ sgiioc4_ide_setup_pci_device(struct pci_dev *dev, ide_pci_device_t * d)
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hwif->chipset = ide_pci;
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hwif->pci_dev = dev;
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hwif->channel = 0; /* Single Channel chip */
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- hwif->cds = (struct ide_pci_device_s *) d;
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hwif->gendev.parent = &dev->dev;/* setup proper ancestral information */
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/* The IOC4 uses MMIO rather than Port IO. */
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@@ -683,11 +690,14 @@ sgiioc4_ide_setup_pci_device(struct pci_dev *dev, ide_pci_device_t * d)
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ide_init_sgiioc4(hwif);
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- if (dma_base)
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- ide_dma_sgiioc4(hwif, dma_base);
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- else
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+ hwif->autodma = 0;
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+
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+ if (dma_base && ide_dma_sgiioc4(hwif, dma_base) == 0) {
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+ hwif->autodma = 1;
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+ hwif->drives[1].autodma = hwif->drives[0].autodma = 1;
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+ } else
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printk(KERN_INFO "%s: %s Bus-Master DMA disabled\n",
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- hwif->name, d->name);
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+ hwif->name, DRV_NAME);
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if (probe_hwif_init(hwif))
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return -EIO;
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@@ -699,7 +709,7 @@ sgiioc4_ide_setup_pci_device(struct pci_dev *dev, ide_pci_device_t * d)
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}
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static unsigned int __devinit
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-pci_init_sgiioc4(struct pci_dev *dev, ide_pci_device_t * d)
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+pci_init_sgiioc4(struct pci_dev *dev)
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{
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unsigned int class_rev;
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int ret;
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@@ -707,30 +717,20 @@ pci_init_sgiioc4(struct pci_dev *dev, ide_pci_device_t * d)
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pci_read_config_dword(dev, PCI_CLASS_REVISION, &class_rev);
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class_rev &= 0xff;
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printk(KERN_INFO "%s: IDE controller at PCI slot %s, revision %d\n",
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- d->name, pci_name(dev), class_rev);
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+ DRV_NAME, pci_name(dev), class_rev);
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if (class_rev < IOC4_SUPPORTED_FIRMWARE_REV) {
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printk(KERN_ERR "Skipping %s IDE controller in slot %s: "
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- "firmware is obsolete - please upgrade to revision"
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- "46 or higher\n", d->name, pci_name(dev));
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+ "firmware is obsolete - please upgrade to "
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+ "revision46 or higher\n",
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+ DRV_NAME, pci_name(dev));
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ret = -EAGAIN;
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goto out;
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}
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- ret = sgiioc4_ide_setup_pci_device(dev, d);
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+ ret = sgiioc4_ide_setup_pci_device(dev);
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out:
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return ret;
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}
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-static ide_pci_device_t sgiioc4_chipset __devinitdata = {
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- /* Channel 0 */
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- .name = "SGIIOC4",
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- .init_hwif = ide_init_sgiioc4,
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- .init_dma = ide_dma_sgiioc4,
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- .autodma = AUTODMA,
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- /* SGI IOC4 doesn't have enablebits. */
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- .bootable = ON_BOARD,
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- .host_flags = IDE_HFLAG_SINGLE,
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-};
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-
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int
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ioc4_ide_attach_one(struct ioc4_driver_data *idd)
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{
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@@ -740,7 +740,7 @@ ioc4_ide_attach_one(struct ioc4_driver_data *idd)
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if (idd->idd_variant == IOC4_VARIANT_PCI_RT)
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return 0;
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- return pci_init_sgiioc4(idd->idd_pdev, &sgiioc4_chipset);
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+ return pci_init_sgiioc4(idd->idd_pdev);
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}
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static struct ioc4_submodule ioc4_ide_submodule = {
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