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 49config OF_KOBJ 50 def_bool SYSFS 51 52# Hardly any platforms need this. It is safe to select, but only do so if you 53# need it. 54config OF_DYNAMIC 55 bool "Support for dynamic device trees" if OF_UNITTEST 56 select OF_KOBJ 57 help 58 On some platforms, the device tree can be manipulated at runtime. 59 While this option is selected automatically on such platforms, you 60 can enable it manually to improve device tree unit test coverage. 61 62config OF_ADDRESS 63 def_bool y 64 depends on !SPARC && HAS_IOMEM 65 select OF_ADDRESS_PCI if PCI 66 67config OF_ADDRESS_PCI 68 bool 69 70config OF_IRQ 71 def_bool y 72 depends on !SPARC && IRQ_DOMAIN 73 74config OF_NET 75 depends on NETDEVICES 76 def_bool y 77 78config OF_MDIO 79 def_tristate PHYLIB 80 depends on PHYLIB 81 select FIXED_PHY 82 help 83 OpenFirmware MDIO bus (Ethernet PHY) accessors 84 85config OF_PCI 86 def_tristate PCI 87 depends on PCI 88 help 89 OpenFirmware PCI bus accessors 90 91config OF_PCI_IRQ 92 def_tristate PCI 93 depends on OF_PCI && OF_IRQ 94 help 95 OpenFirmware PCI IRQ routing helpers 96 97config OF_RESERVED_MEM 98 depends on OF_EARLY_FLATTREE 99 bool 100 help 101 Helpers to allow for reservation of memory regions 102 103config OF_RESOLVE 104 bool 105 106config OF_OVERLAY 107 bool "Device Tree overlays" 108 select OF_DYNAMIC 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_NUMA 117 bool 118 119endif # OF 120