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 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 select FIXED_PHY 78 help 79 OpenFirmware MDIO bus (Ethernet PHY) accessors 80 81config OF_RESERVED_MEM 82 depends on OF_EARLY_FLATTREE 83 bool 84 help 85 Helpers to allow for reservation of memory regions 86 87config OF_RESOLVE 88 bool 89 90config OF_OVERLAY 91 bool "Device Tree overlays" 92 select OF_DYNAMIC 93 select OF_RESOLVE 94 help 95 Overlays are a method to dynamically modify part of the kernel's 96 device tree with dynamically loaded data. 97 While this option is selected automatically when needed, you can 98 enable it manually to improve device tree unit test coverage. 99 100config OF_NUMA 101 bool 102 103endif # OF 104