This patch adds descriptions fore new properties of device tree
binding for the ARM SMMU architecture. These properties control
arm-smmu driver options.
Cc: Rob Herring <robherri...@gmail.com>
Cc: Grant Likely <grant.lik...@linaro.org>
Cc: Will Deacon <will.dea...@arm.com>
Signed-off-by: Andreas Herrmann <andreas.herrm...@calxeda.com>
---
.../devicetree/bindings/iommu/arm,smmu.txt | 12 ++++++++++++
1 file changed, 12 insertions(+)
diff --git a/Documentation/devicetree/bindings/iommu/arm,smmu.txt
b/Documentation/devicetree/bindings/iommu/arm,smmu.txt
index e34c6cd..de88cf9 100644
--- a/Documentation/devicetree/bindings/iommu/arm,smmu.txt
+++ b/Documentation/devicetree/bindings/iommu/arm,smmu.txt
@@ -48,6 +48,17 @@ 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.
+
+- arm,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 +78,5 @@ Example:
*/
mmu-masters = <&dma0 0xd01d 0xd01e>,
<&dma1 0xd11c>;
+ arm,smmu-isolate-devices;
};
--
1.7.9.5
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