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 115config OF_NUMA 116 bool 117 118endif # OF 119