remove trailing whitespace

[coreboot.git] / src / northbridge / amd / amdk8 / misc_control.c

diff --git a/src/northbridge/amd/amdk8/misc_control.c b/src/northbridge/amd/amdk8/misc_control.c
index 5d51f036cb69cf6c18437f4770ba7b6a38b3a2d7..7ba2b90406b8462b32030f2842fbadf29d4eaf9b 100644 (file)
--- a/src/northbridge/amd/amdk8/misc_control.c
+++ b/src/northbridge/amd/amdk8/misc_control.c
@@ -1,6 +1,6 @@
 /* Turn off machine check triggers when reading
- * pci space where there are no devices.
- * This is necessary when scaning the bus for
+ * PCI space where there are no devices.
+ * This is necessary when scanning the bus for
  * devices which is done by the kernel
  *
  * written in 2003 by Eric Biederman
@@ -26,13 +26,13 @@
  *
  * @param
  *
- * There is only one AGP aperture resource needed. The resoruce is added to
+ * There is only one AGP aperture resource needed. The resource is added to
  * the northbridge of BSP.
  *
  * The same trick can be used to augment legacy VGA resources which can
- * be detect by generic pci reousrce allocator for VGA devices.
+ * be detect by generic PCI resource allocator for VGA devices.
  * BAD: it is more tricky than I think, the resource allocation code is
- * implemented in a way to NOT DOING legacy VGA resource allcation on
+ * implemented in a way to NOT DOING legacy VGA resource allocation on
  * purpose :-(.
  */
 static void mcf3_read_resources(device_t dev)
@@ -42,16 +42,19 @@ static void mcf3_read_resources(device_t dev)
        /* Read the generic PCI resources */
        pci_dev_read_resources(dev);
 
-       /* If we are not the first processor don't allocate the gart apeture */
+       /* If we are not the first processor don't allocate the GART aperture */
        if (dev->path.pci.devfn != PCI_DEVFN(0x18, 3)) {
                return;
        }
 
        iommu = 1;
-       get_option(&iommu, "iommu");
+       if( get_option(&iommu, "iommu") < 0 )
+       {
+               iommu = CONFIG_IOMMU;
+       }
 
        if (iommu) {
-               /* Add a Gart apeture resource */
+               /* Add a GART aperture resource */
                resource = new_resource(dev, 0x94);
                resource->size = CONFIG_AGP_APERTURE_SIZE;
                resource->align = log2(resource->size);
@@ -79,7 +82,7 @@ static void set_agp_aperture(device_t dev)
                /* Get the base address */
                gart_base = ((resource->base) >> 25) & 0x00007fff;
 
-               /* Update the other northbriges */
+               /* Update the other northbridges */
                pdev = 0;
                while((pdev = dev_find_device(PCI_VENDOR_ID_AMD, 0x1103, pdev))) {
                        /* Store the GART size but don't enable it */