ARM: OMAP: Update PRCM rate-table entries for 2430

[linux-2.6-omap-h63xx.git] / Documentation / kernel-parameters.txt

diff --git a/Documentation/kernel-parameters.txt b/Documentation/kernel-parameters.txt
index 6accd360da735cce8f9e9adecf0e5938d2e8e590..b2361667839fd8850c385d1ba0a1f5cea1878751 100644 (file)
--- a/Documentation/kernel-parameters.txt
+++ b/Documentation/kernel-parameters.txt
@@ -772,6 +772,23 @@ and is between 256 and 4096 characters. It is defined in the file
 
        inttest=        [IA64]
 
+       intel_iommu=    [DMAR] Intel IOMMU driver (DMAR) option
+               off
+                       Disable intel iommu driver.
+               igfx_off [Default Off]
+                       By default, gfx is mapped as normal device. If a gfx
+                       device has a dedicated DMAR unit, the DMAR unit is
+                       bypassed by not enabling DMAR with this option. In
+                       this case, gfx device will use physical address for
+                       DMA.
+               forcedac [x86_64]
+                       With this option iommu will not optimize to look
+                       for io virtual address below 32 bit forcing dual
+                       address cycle on pci bus for cards supporting greater
+                       than 32 bit addressing. The default is to look
+                       for translation below 32 bit and if not available
+                       then look in the higher range.
+
        io7=            [HW] IO7 for Marvel based alpha systems
                        See comment before marvel_specify_io7 in
                        arch/alpha/kernel/core_marvel.c.