| 1 | config DTC |
| 2 | bool |
| 3 | |
| 4 | menuconfig 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 | |
| 12 | if OF |
| 13 | |
| 14 | config 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 | |
| 26 | config 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 | |
| 36 | config OF_FLATTREE |
| 37 | bool |
| 38 | select DTC |
| 39 | select LIBFDT |
| 40 | select CRC32 |
| 41 | |
| 42 | config OF_EARLY_FLATTREE |
| 43 | bool |
| 44 | select OF_FLATTREE |
| 45 | |
| 46 | config 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. |
| 51 | config 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 | |
| 58 | config OF_ADDRESS |
| 59 | def_bool y |
| 60 | depends on !SPARC && HAS_IOMEM |
| 61 | select OF_ADDRESS_PCI if PCI |
| 62 | |
| 63 | config OF_ADDRESS_PCI |
| 64 | bool |
| 65 | |
| 66 | config OF_IRQ |
| 67 | def_bool y |
| 68 | depends on !SPARC && IRQ_DOMAIN |
| 69 | |
| 70 | config OF_NET |
| 71 | depends on NETDEVICES |
| 72 | def_bool y |
| 73 | |
| 74 | config OF_MDIO |
| 75 | def_tristate PHYLIB |
| 76 | depends on PHYLIB |
| 77 | help |
| 78 | OpenFirmware MDIO bus (Ethernet PHY) accessors |
| 79 | |
| 80 | config OF_PCI |
| 81 | def_tristate PCI |
| 82 | depends on PCI |
| 83 | help |
| 84 | OpenFirmware PCI bus accessors |
| 85 | |
| 86 | config OF_PCI_IRQ |
| 87 | def_tristate PCI |
| 88 | depends on OF_PCI && OF_IRQ |
| 89 | help |
| 90 | OpenFirmware PCI IRQ routing helpers |
| 91 | |
| 92 | config OF_MTD |
| 93 | depends on MTD |
| 94 | def_bool y |
| 95 | |
| 96 | config OF_RESERVED_MEM |
| 97 | depends on OF_EARLY_FLATTREE |
| 98 | bool |
| 99 | help |
| 100 | Helpers to allow for reservation of memory regions |
| 101 | |
| 102 | config OF_RESOLVE |
| 103 | bool |
| 104 | |
| 105 | config 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 | |
| 115 | endif # OF |