1config DTC
 2	bool
 3
 4config OF
 5	bool
 6
 7menu "Device Tree and Open Firmware support"
 8	depends on OF
 9
10config PROC_DEVICETREE
11	bool "Support for device tree in /proc"
12	depends on PROC_FS && !SPARC
13	help
14	  This option adds a device-tree directory under /proc which contains
15	  an image of the device tree that the kernel copies from Open
16	  Firmware or other boot firmware. If unsure, say Y here.
 
 
 
17
18config OF_SELFTEST
19	bool "Device Tree Runtime self tests"
 
 
 
 
20	help
21	  This option builds in test cases for the device tree infrastructure
22	  that are executed one at boot time, and the results dumped to the
23	  console.
24
25	  If unsure, say N here, but this option is safe to enable.
26
 
 
 
 
 
 
 
 
 
 
27config OF_FLATTREE
28	bool
29	select DTC
 
 
30
31config OF_EARLY_FLATTREE
32	bool
 
33	select OF_FLATTREE
34
35config OF_PROMTREE
36	bool
37
 
 
 
38# Hardly any platforms need this.  It is safe to select, but only do so if you
39# need it.
40config OF_DYNAMIC
41	bool
 
 
 
 
 
42
43config OF_ADDRESS
44	def_bool y
45	depends on !SPARC
46
47config OF_IRQ
48	def_bool y
49	depends on !SPARC
50
51config OF_DEVICE
52	def_bool y
53
54config OF_I2C
55	def_tristate I2C
56	depends on I2C && !SPARC
57	help
58	  OpenFirmware I2C accessors
59
60config OF_NET
61	depends on NETDEVICES
62	def_bool y
63
64config OF_MDIO
65	def_tristate PHYLIB
66	depends on PHYLIB
 
67	help
68	  OpenFirmware MDIO bus (Ethernet PHY) accessors
69
70config OF_PCI
71	def_tristate PCI
72	depends on PCI
73	help
74	  OpenFirmware PCI bus accessors
 
 
75
76config OF_PCI_IRQ
77	def_tristate PCI
78	depends on OF_PCI && OF_IRQ
 
 
79	help
80	  OpenFirmware PCI IRQ routing helpers
 
 
 
81
82config OF_MTD
83	depends on MTD
84	def_bool y
85
86endmenu # 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