# SPDX-License-Identifier: GPL-2.0config DTC	bool config GENERIC_BUILTIN_DTB	bool config BUILTIN_DTB_ALL	bool menuconfig OF	bool "Device Tree and Open Firmware support"	help	  This option enables the device tree infrastructure.	  It is automatically selected by platforms that need it or can	  be enabled manually for unittests, overlays or	  compile-coverage. if OF config OF_UNITTEST	bool "Device Tree runtime unit tests"	depends on OF_EARLY_FLATTREE	select IRQ_DOMAIN	select OF_RESOLVE	help	  This option builds in test cases for the device tree infrastructure	  that are executed once at boot time, and the results dumped to the	  console. 	  This option should only be enabled for a development kernel. The tests	  will taint the kernel with TAINT_TEST. The tests will cause ERROR and	  WARNING messages to print on the console. The tests will cause stack	  traces to print on the console.  It is possible that the tests will	  leave the devicetree in a corrupted state. 	  The unittest output will be verbose.  Copy the output to a file	  via capturing the console output or via the dmesg command.  Process	  this file with scripts/dtc/of_unittest_expect to reduce the	  verbosity, test whether expected output is present, and to	  summarize the results. 	  If unsure, say N here. This option is not safe to enable. config OF_KUNIT_TEST	tristate "Devicetree KUnit Test" if !KUNIT_ALL_TESTS	depends on KUNIT	default KUNIT_ALL_TESTS	help	  This option builds KUnit unit tests for device tree infrastructure. 	  If unsure, say N here, but this option is safe to enable. config OF_ALL_DTBS	bool "Build all Device Tree Blobs"	depends on COMPILE_TEST	select DTC	help	  This option builds all possible Device Tree Blobs (DTBs) for the	  current architecture. 	  If unsure, say N here, but this option is safe to enable. config OF_FLATTREE	bool	select DTC	select LIBFDT	select CRC32 config OF_EARLY_FLATTREE	def_bool OF && !(SPARC || ALPHA || HEXAGON || M68K || PARISC || S390)	select DMA_DECLARE_COHERENT if HAS_DMA && HAS_IOMEM	select OF_FLATTREE config OF_PROMTREE	bool config OF_KOBJ	def_bool SYSFS # Hardly any platforms need this.  It is safe to select, but only do so if you# need it.config OF_DYNAMIC	bool "Support for dynamic device trees" if OF_UNITTEST	select OF_KOBJ	help	  On some platforms, the device tree can be manipulated at runtime.	  While this option is selected automatically on such platforms, you	  can enable it manually to improve device tree unit test coverage. config OF_ADDRESS	def_bool y	depends on !SPARC && (HAS_IOMEM || UML) config OF_IRQ	def_bool y	depends on !SPARC && IRQ_DOMAIN config OF_RESERVED_MEM	def_bool OF_EARLY_FLATTREE config OF_RESOLVE	bool config OF_OVERLAY	bool "Device Tree overlays"	select OF_DYNAMIC	select OF_FLATTREE	select OF_RESOLVE	help	  Overlays are a method to dynamically modify part of the kernel's	  device tree with dynamically loaded data.	  While this option is selected automatically when needed, you can	  enable it manually to improve device tree unit test coverage. config OF_OVERLAY_KUNIT_TEST	tristate "Device Tree overlay KUnit tests" if !KUNIT_ALL_TESTS	depends on KUNIT	default KUNIT_ALL_TESTS	select DTC	help	  This option builds KUnit unit tests for the device tree overlay code. 	  If unsure, say N here, but this option is safe to enable. config OF_NUMA	bool endif # OF