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| author |   Will Deacon <will.deacon@arm.com> | 2013-06-24 18:31:25 +0100 |
|---|---|---|
| committer |   Joerg Roedel <joro@8bytes.org> | 2013-06-25 23:34:20 +0200 |
| commit | 45ae7cff3684ab45f57fc13fc242c8546536a84e (patch) | |
| tree | d200ebb7e4337beb1b7a7e9d1a83984db2d56d4a /drivers/iommu/Kconfig | |
| parent | documentation/iommu: Add description of ARM System MMU binding (diff) | |
| download | linux-dev-45ae7cff3684ab45f57fc13fc242c8546536a84e.tar.xz linux-dev-45ae7cff3684ab45f57fc13fc242c8546536a84e.zip | |
iommu/arm: Add support for ARM Ltd. System MMU architecture
This patch adds support for SMMUs implementing the ARM System MMU
architecture versions 1 or 2. Both arm and arm64 are supported, although
the v7s descriptor format is not used.
Cc: Rob Herring <robherring2@gmail.com>
Cc: Andreas Herrmann <andreas.herrmann@calxeda.com>
Cc: Olav Haugan <ohaugan@codeaurora.org>
Cc: Joerg Roedel <joro@8bytes.org>
Signed-off-by: Will Deacon <will.deacon@arm.com>
Acked-by: Andreas Herrmann <andreas.herrmann@calxeda.com>
Signed-off-by: Joerg Roedel <joro@8bytes.org>
Diffstat (limited to 'drivers/iommu/Kconfig')
| -rw-r--r-- | drivers/iommu/Kconfig | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/drivers/iommu/Kconfig b/drivers/iommu/Kconfig index c332fb98480d..957cfd4f8065 100644 --- a/drivers/iommu/Kconfig +++ b/drivers/iommu/Kconfig @@ -261,4 +261,17 @@ config SHMOBILE_IOMMU_L1SIZE default 256 if SHMOBILE_IOMMU_ADDRSIZE_64MB default 128 if SHMOBILE_IOMMU_ADDRSIZE_32MB +config ARM_SMMU + bool "ARM Ltd. System MMU (SMMU) Support" + depends on ARM64 || (ARM_LPAE && OF) + select IOMMU_API + select ARM_DMA_USE_IOMMU if ARM + help + Support for implementations of the ARM System MMU architecture + versions 1 and 2. The driver supports both v7l and v8l table + formats with 4k and 64k page sizes. + + Say Y here if your SoC includes an IOMMU device implementing + the ARM SMMU architecture. + endif # IOMMU_SUPPORT |