[PATCH] documentation/iommu: Update description of ARM System MMU binding
From: Andreas Herrmann <hidden>
Date: 2014-01-30 20:17:52
Also in:
linux-iommu
Subsystem:
arm smmu drivers, iommu subsystem, open firmware and flattened device tree bindings, the rest · Maintainers:
Will Deacon, Joerg Roedel, Rob Herring, Krzysztof Kozlowski, Conor Dooley, Linus Torvalds
This patch adds descriptions fore new properties of device tree binding for the ARM SMMU architecture. These properties control arm-smmu driver options. Cc: Grant Likely <redacted> Cc: Will Deacon <redacted> Cc: Andreas Herrmann <redacted> Acked-by: Rob Herring <robh@kernel.org> Signed-off-by: Andreas Herrmann <redacted> --- .../devicetree/bindings/iommu/arm,smmu.txt | 11 +++++++++++ 1 file changed, 11 insertions(+) Hi Will, I should have included this patch in the series as it describes the options introduced there. Andreas
diff --git a/Documentation/devicetree/bindings/iommu/arm,smmu.txt b/Documentation/devicetree/bindings/iommu/arm,smmu.txt
index e34c6cd..7ad8ff0 100644
--- a/Documentation/devicetree/bindings/iommu/arm,smmu.txt
+++ b/Documentation/devicetree/bindings/iommu/arm,smmu.txt@@ -48,6 +48,16 @@ conditions. from the mmu-masters towards memory) node for this SMMU. +- arm,smmu-isolate-devices : Enable device isolation for all masters + of this SMMU. Ie. each master will be attached to + its own iommu domain. + +- calxeda,smmu-secure-config-access : Enable proper handling of buggy + implementations that always use secure access to + SMMU configuration registers. In this case + non-secure aliases of secure registers have to be + used during SMMU configuration. + Example: smmu {
@@ -67,4 +77,5 @@ Example: */ mmu-masters = <&dma0 0xd01d 0xd01e>, <&dma1 0xd11c>; + arm,smmu-isolate-devices; };
--
1.7.9.5