1# SPDX-License-Identifier: GPL-2.0
  2config DTC
  3	bool
  4
  5config GENERIC_BUILTIN_DTB
  6	bool
  7
  8config BUILTIN_DTB_ALL
  9	bool
 10
 11menuconfig OF
 12	bool "Device Tree and Open Firmware support"
 13	help
 14	  This option enables the device tree infrastructure.
 15	  It is automatically selected by platforms that need it or can
 16	  be enabled manually for unittests, overlays or
 17	  compile-coverage.
 18
 19if OF
 20
 21config OF_UNITTEST
 22	bool "Device Tree runtime unit tests"
 23	depends on OF_EARLY_FLATTREE
 24	select IRQ_DOMAIN
 
 25	select OF_RESOLVE
 26	help
 27	  This option builds in test cases for the device tree infrastructure
 28	  that are executed once at boot time, and the results dumped to the
 29	  console.
 30
 31	  This option should only be enabled for a development kernel. The tests
 32	  will taint the kernel with TAINT_TEST. The tests will cause ERROR and
 33	  WARNING messages to print on the console. The tests will cause stack
 34	  traces to print on the console.  It is possible that the tests will
 35	  leave the devicetree in a corrupted state.
 36
 37	  The unittest output will be verbose.  Copy the output to a file
 38	  via capturing the console output or via the dmesg command.  Process
 39	  this file with scripts/dtc/of_unittest_expect to reduce the
 40	  verbosity, test whether expected output is present, and to
 41	  summarize the results.
 42
 43	  If unsure, say N here. This option is not safe to enable.
 44
 45config OF_KUNIT_TEST
 46	tristate "Devicetree KUnit Test" if !KUNIT_ALL_TESTS
 47	depends on KUNIT
 48	default KUNIT_ALL_TESTS
 49	help
 50	  This option builds KUnit unit tests for device tree infrastructure.
 51
 52	  If unsure, say N here, but this option is safe to enable.
 53
 54config OF_ALL_DTBS
 55	bool "Build all Device Tree Blobs"
 56	depends on COMPILE_TEST
 57	select DTC
 58	help
 59	  This option builds all possible Device Tree Blobs (DTBs) for the
 60	  current architecture.
 61
 62	  If unsure, say N here, but this option is safe to enable.
 63
 64config OF_FLATTREE
 65	bool
 66	select DTC
 67	select LIBFDT
 68	select CRC32
 69
 70config OF_EARLY_FLATTREE
 71	def_bool OF && !(SPARC || ALPHA || HEXAGON || M68K || PARISC || S390)
 72	select DMA_DECLARE_COHERENT if HAS_DMA && HAS_IOMEM
 73	select OF_FLATTREE
 74
 75config OF_PROMTREE
 76	bool
 77
 78config OF_KOBJ
 79	def_bool SYSFS
 80
 81# Hardly any platforms need this.  It is safe to select, but only do so if you
 82# need it.
 83config OF_DYNAMIC
 84	bool "Support for dynamic device trees" if OF_UNITTEST
 85	select OF_KOBJ
 86	help
 87	  On some platforms, the device tree can be manipulated at runtime.
 88	  While this option is selected automatically on such platforms, you
 89	  can enable it manually to improve device tree unit test coverage.
 90
 91config OF_ADDRESS
 92	def_bool y
 93	depends on !SPARC && (HAS_IOMEM || UML)
 94
 95config OF_IRQ
 96	def_bool y
 97	depends on !SPARC && IRQ_DOMAIN
 98
 
 
 
 
 
 
 
 
 
 
 
 99config OF_RESERVED_MEM
100	def_bool OF_EARLY_FLATTREE
 
 
101
102config OF_RESOLVE
103	bool
104
105config OF_OVERLAY
106	bool "Device Tree overlays"
107	select OF_DYNAMIC
108	select OF_FLATTREE
109	select OF_RESOLVE
110	help
111	  Overlays are a method to dynamically modify part of the kernel's
112	  device tree with dynamically loaded data.
113	  While this option is selected automatically when needed, you can
114	  enable it manually to improve device tree unit test coverage.
115
116config OF_OVERLAY_KUNIT_TEST
117	tristate "Device Tree overlay KUnit tests" if !KUNIT_ALL_TESTS
118	depends on KUNIT
119	default KUNIT_ALL_TESTS
120	select DTC
121	help
122	  This option builds KUnit unit tests for the device tree overlay code.
123
124	  If unsure, say N here, but this option is safe to enable.
125
126config OF_NUMA
127	bool
128
129endif # OF

  1# SPDX-License-Identifier: GPL-2.0
  2config DTC
  3	bool
  4
 
 
 
 
 
 
  5menuconfig OF
  6	bool "Device Tree and Open Firmware support"
  7	help
  8	  This option enables the device tree infrastructure.
  9	  It is automatically selected by platforms that need it or can
 10	  be enabled manually for unittests, overlays or
 11	  compile-coverage.
 12
 13if OF
 14
 15config OF_UNITTEST
 16	bool "Device Tree runtime unit tests"
 17	depends on !SPARC
 18	select IRQ_DOMAIN
 19	select OF_EARLY_FLATTREE
 20	select OF_RESOLVE
 21	help
 22	  This option builds in test cases for the device tree infrastructure
 23	  that are executed once at boot time, and the results dumped to the
 24	  console.
 25
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 26	  If unsure, say N here, but this option is safe to enable.
 27
 28config OF_ALL_DTBS
 29	bool "Build all Device Tree Blobs"
 30	depends on COMPILE_TEST
 31	select DTC
 32	help
 33	  This option builds all possible Device Tree Blobs (DTBs) for the
 34	  current architecture.
 35
 36	  If unsure, say N here, but this option is safe to enable.
 37
 38config OF_FLATTREE
 39	bool
 40	select DTC
 41	select LIBFDT
 42	select CRC32
 43
 44config OF_EARLY_FLATTREE
 45	bool
 46	select DMA_DECLARE_COHERENT if HAS_DMA
 47	select OF_FLATTREE
 48
 49config OF_PROMTREE
 50	bool
 51
 52config OF_KOBJ
 53	def_bool SYSFS
 54
 55# Hardly any platforms need this.  It is safe to select, but only do so if you
 56# need it.
 57config OF_DYNAMIC
 58	bool "Support for dynamic device trees" if OF_UNITTEST
 59	select OF_KOBJ
 60	help
 61	  On some platforms, the device tree can be manipulated at runtime.
 62	  While this option is selected automatically on such platforms, you
 63	  can enable it manually to improve device tree unit test coverage.
 64
 65config OF_ADDRESS
 66	def_bool y
 67	depends on !SPARC && (HAS_IOMEM || UML)
 68
 69config OF_IRQ
 70	def_bool y
 71	depends on !SPARC && IRQ_DOMAIN
 72
 73config OF_NET
 74	depends on NETDEVICES
 75	def_bool y
 76
 77config OF_MDIO
 78	def_tristate PHYLIB
 79	depends on PHYLIB
 80	select FIXED_PHY
 81	help
 82	  OpenFirmware MDIO bus (Ethernet PHY) accessors
 83
 84config OF_RESERVED_MEM
 85	bool
 86	depends on OF_EARLY_FLATTREE
 87	default y if DMA_DECLARE_COHERENT || DMA_CMA
 88
 89config OF_RESOLVE
 90	bool
 91
 92config OF_OVERLAY
 93	bool "Device Tree overlays"
 94	select OF_DYNAMIC
 95	select OF_FLATTREE
 96	select OF_RESOLVE
 97	help
 98	  Overlays are a method to dynamically modify part of the kernel's
 99	  device tree with dynamically loaded data.
100	  While this option is selected automatically when needed, you can
101	  enable it manually to improve device tree unit test coverage.
 
 
 
 
 
 
 
 
 
 
102
103config OF_NUMA
104	bool
105
106endif # OF