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 !SPARC 17 select IRQ_DOMAIN 18 select OF_EARLY_FLATTREE 19 select OF_RESOLVE 20 help 21 This option builds in test cases for the device tree infrastructure 22 that are executed once 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_ALL_DTBS 28 bool "Build all Device Tree Blobs" 29 depends on COMPILE_TEST 30 select DTC 31 help 32 This option builds all possible Device Tree Blobs (DTBs) for the 33 current architecture. 34 35 If unsure, say N here, but this option is safe to enable. 36 37config OF_FLATTREE 38 bool 39 select DTC 40 select LIBFDT 41 select CRC32 42 43config OF_EARLY_FLATTREE 44 bool 45 select OF_FLATTREE 46 47config OF_PROMTREE 48 bool 49 50config OF_KOBJ 51 def_bool SYSFS 52 53# Hardly any platforms need this. It is safe to select, but only do so if you 54# need it. 55config OF_DYNAMIC 56 bool "Support for dynamic device trees" if OF_UNITTEST 57 select OF_KOBJ 58 help 59 On some platforms, the device tree can be manipulated at runtime. 60 While this option is selected automatically on such platforms, you 61 can enable it manually to improve device tree unit test coverage. 62 63config OF_ADDRESS 64 def_bool y 65 depends on !SPARC && (HAS_IOMEM || UML) 66 select OF_ADDRESS_PCI if PCI 67 68config OF_ADDRESS_PCI 69 bool 70 71config OF_IRQ 72 def_bool y 73 depends on !SPARC && IRQ_DOMAIN 74 75config OF_NET 76 depends on NETDEVICES 77 def_bool y 78 79config OF_MDIO 80 def_tristate PHYLIB 81 depends on PHYLIB 82 select FIXED_PHY 83 help 84 OpenFirmware MDIO bus (Ethernet PHY) accessors 85 86config OF_PCI 87 def_tristate PCI 88 depends on PCI 89 help 90 OpenFirmware PCI bus accessors 91 92config OF_PCI_IRQ 93 def_tristate PCI 94 depends on OF_PCI && OF_IRQ 95 help 96 OpenFirmware PCI IRQ routing helpers 97 98config OF_RESERVED_MEM 99 depends on OF_EARLY_FLATTREE 100 bool 101 help 102 Helpers to allow for reservation of memory regions 103 104config OF_RESOLVE 105 bool 106 107config OF_OVERLAY 108 bool "Device Tree overlays" 109 select OF_DYNAMIC 110 select OF_RESOLVE 111 help 112 Overlays are a method to dynamically modify part of the kernel's 113 device tree with dynamically loaded data. 114 While this option is selected automatically when needed, you can 115 enable it manually to improve device tree unit test coverage. 116 117config OF_NUMA 118 bool 119 120endif # OF 121