1 files changed, 11 insertions, 5 deletions

diff --git a/drivers/ide/pci/sgiioc4.c b/drivers/ide/pci/sgiioc4.c
index 43b96e298363..27c9eb989a9a 100644
--- a/drivers/ide/pci/sgiioc4.c
+++ b/drivers/ide/pci/sgiioc4.c
@@ -345,17 +345,17 @@ sgiioc4_resetproc(ide_drive_t * drive)
 static u8
 sgiioc4_INB(unsigned long port)
 {
-        u8 reg = (u8) inb(port);
+        u8 reg = (u8) readb((void __iomem *) port);
 
         if ((port & 0xFFF) == 0x11C) {  /* Status register of IOC4 */
                 if (reg & 0x51) {       /* Not busy...check for interrupt */
                         unsigned long other_ir = port - 0x110;
-                        unsigned int intr_reg = (u32) inl(other_ir);
+                        unsigned int intr_reg = (u32) readl((void __iomem *) other_ir);
 
                         /* Clear the Interrupt, Error bits on the IOC4 */
                         if (intr_reg & 0x03) {
-                                outl(0x03, other_ir);
-                                intr_reg = (u32) inl(other_ir);
+                                writel(0x03, (void __iomem *) other_ir);
+                                intr_reg = (u32) readl((void __iomem *) other_ir);
                         }
                 }
         }
@@ -606,6 +606,12 @@ ide_init_sgiioc4(ide_hwif_t * hwif)
         hwif->ide_dma_host_off = &sgiioc4_ide_dma_host_off;
         hwif->ide_dma_lostirq = &sgiioc4_ide_dma_lostirq;
         hwif->ide_dma_timeout = &__ide_dma_timeout;
+
+        /*
+         * The IOC4 uses MMIO rather than Port IO.
+         * It also needs special workarounds for INB.
+         */
+        default_hwif_mmiops(hwif);
         hwif->INB = &sgiioc4_INB;
 }
 
@@ -743,6 +749,6 @@ ioc4_ide_exit(void)
 module_init(ioc4_ide_init);
 module_exit(ioc4_ide_exit);
 
-MODULE_AUTHOR("Aniket Malatpure - Silicon Graphics Inc. (SGI)");
+MODULE_AUTHOR("Aniket Malatpure/Jeremy Higdon");
 MODULE_DESCRIPTION("IDE PCI driver module for SGI IOC4 Base-IO Card");
 MODULE_LICENSE("GPL");