#
# IOMMU devices
#

menu "IOMMU device drivers"

config IOMMU
	bool "Enable Driver Model for IOMMU drivers"
	depends on DM
	help
	  Enable driver model for IOMMU devices. An IOMMU maps device
	  virtiual memory addresses to physical addresses. Devices
	  that sit behind an IOMMU can typically only access physical
	  memory if the IOMMU has been programmed to allow access to
	  that memory.

config APPLE_DART
	bool "Apple DART support"
	depends on IOMMU && ARCH_APPLE
	default y
	help
	  Enable support for the DART on Apple SoCs.  The DART is Apple's
	  IOMMU implementation.  The driver performs the necessary
	  configuration to put the DART into bypass mode such that it can
	  be used transparently by U-Boot.

config ARM_SMMU
	bool "Arm SMMU support"
	depends on IOMMU && ARM
	help
	  Enable support for the Arm System MMU. It is used on some ARM SoCs
	  to provide IOMMU functionality for peripheral devices like USB
	  controllers.

	  This driver expects the SMMU to have been initialized by a previous
	  boot stage, and only performs basic configuration to configure a
	  context bank for a stream.

endmenu