1config DTC
  2	bool
  3
  4menuconfig OF
  5	bool "Device Tree and Open Firmware support"
  6	help
  7	  This option enables the device tree infrastructure.
  8	  It is automatically selected by platforms that need it or can
  9	  be enabled manually for unittests, overlays or
 10	  compile-coverage.
 11
 12if OF
 13
 14config OF_UNITTEST
 15	bool "Device Tree runtime unit tests"
 16	depends on OF_IRQ
 
 17	select OF_EARLY_FLATTREE
 18	select OF_RESOLVE
 19	help
 20	  This option builds in test cases for the device tree infrastructure
 21	  that are executed once at boot time, and the results dumped to the
 22	  console.
 23
 24	  If unsure, say N here, but this option is safe to enable.
 25
 26config OF_ALL_DTBS
 27	bool "Build all Device Tree Blobs"
 28	depends on COMPILE_TEST
 29	select DTC
 30	help
 31	  This option builds all possible Device Tree Blobs (DTBs) for the
 32	  current architecture.
 33
 34	  If unsure, say N here, but this option is safe to enable.
 35
 36config OF_FLATTREE
 37	bool
 38	select DTC
 39	select LIBFDT
 40	select CRC32
 41
 42config OF_EARLY_FLATTREE
 43	bool
 
 44	select OF_FLATTREE
 45
 46config OF_PROMTREE
 47	bool
 48
 
 
 
 49# Hardly any platforms need this.  It is safe to select, but only do so if you
 50# need it.
 51config OF_DYNAMIC
 52	bool "Support for dynamic device trees" if OF_UNITTEST
 
 53	help
 54	  On some platforms, the device tree can be manipulated at runtime.
 55	  While this option is selected automatically on such platforms, you
 56	  can enable it manually to improve device tree unit test coverage.
 57
 58config OF_ADDRESS
 59	def_bool y
 60	depends on !SPARC && HAS_IOMEM
 61	select OF_ADDRESS_PCI if PCI
 62
 63config OF_ADDRESS_PCI
 64	bool
 65
 66config OF_IRQ
 67	def_bool y
 68	depends on !SPARC && IRQ_DOMAIN
 69
 70config OF_NET
 71	depends on NETDEVICES
 72	def_bool y
 73
 74config OF_MDIO
 75	def_tristate PHYLIB
 76	depends on PHYLIB
 77	help
 78	  OpenFirmware MDIO bus (Ethernet PHY) accessors
 79
 80config OF_PCI
 81	def_tristate PCI
 82	depends on PCI
 83	help
 84	  OpenFirmware PCI bus accessors
 85
 86config OF_PCI_IRQ
 87	def_tristate PCI
 88	depends on OF_PCI && OF_IRQ
 89	help
 90	  OpenFirmware PCI IRQ routing helpers
 91
 92config OF_MTD
 93	depends on MTD
 94	def_bool y
 95
 96config OF_RESERVED_MEM
 97	depends on OF_EARLY_FLATTREE
 98	bool
 99	help
100	  Helpers to allow for reservation of memory regions
101
102config OF_RESOLVE
103	bool
104
105config OF_OVERLAY
106	bool "Device Tree overlays"
107	select OF_DYNAMIC
 
108	select OF_RESOLVE
109	help
110	  Overlays are a method to dynamically modify part of the kernel's
111	  device tree with dynamically loaded data.
112	  While this option is selected automatically when needed, you can
113	  enable it manually to improve device tree unit test coverage.
 
 
 
 
 
 
 
114
115endif # 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_RESERVED_MEM
 78	def_bool OF_EARLY_FLATTREE
 
 
 
 79
 80config OF_RESOLVE
 81	bool
 82
 83config OF_OVERLAY
 84	bool "Device Tree overlays"
 85	select OF_DYNAMIC
 86	select OF_FLATTREE
 87	select OF_RESOLVE
 88	help
 89	  Overlays are a method to dynamically modify part of the kernel's
 90	  device tree with dynamically loaded data.
 91	  While this option is selected automatically when needed, you can
 92	  enable it manually to improve device tree unit test coverage.
 93
 94config OF_NUMA
 95	bool
 96
 97config OF_DMA_DEFAULT_COHERENT
 98	# arches should select this if DMA is coherent by default for OF devices
 99	bool
100
101endif # OF