projects / linux.git / blame
| Commit | Line | Data |
|---|---|---|
| af6074fc | 1 | # SPDX-License-Identifier: GPL-2.0 |
| 5ab5fc7e GL |
2 | config DTC |
| 3 | bool | |
| 4 | ||
| 0166dc11 RH |
5 | menuconfig OF |
| 6 | bool "Device Tree and Open Firmware support" | |
| 7 | help | |
| 8 | This option enables the device tree infrastructure. | |
| 9 | It is automatically selected by platforms that need it or can | |
| 10 | be enabled manually for unittests, overlays or | |
| 11 | compile-coverage. | |
| bcbefae2 | 12 | |
| 0166dc11 | 13 | if OF |
| 5ab5fc7e | 14 | |
| 19fd7487 GL |
15 | config OF_UNITTEST |
| 16 | bool "Device Tree runtime unit tests" | |
| 6019a3d0 RH |
17 | depends on !SPARC |
| 18 | select IRQ_DOMAIN | |
| 649e0a77 | 19 | select OF_EARLY_FLATTREE |
| 2eb46da2 | 20 | select OF_RESOLVE |
| 53a42093 GL |
21 | help |
| 22 | This option builds in test cases for the device tree infrastructure | |
| 5d927086 | 23 | that are executed once at boot time, and the results dumped to the |
| 53a42093 GL |
24 | console. |
| 25 | ||
| 26 | If unsure, say N here, but this option is safe to enable. | |
| 27 | ||
| 1b7c501b RH |
28 | config OF_ALL_DTBS |
| 29 | bool "Build all Device Tree Blobs" | |
| 30 | depends on COMPILE_TEST | |
| 31 | select DTC | |
| 32 | help | |
| 33 | This option builds all possible Device Tree Blobs (DTBs) for the | |
| 34 | current architecture. | |
| 35 | ||
| 36 | If unsure, say N here, but this option is safe to enable. | |
| 37 | ||
| e169cfbe GL |
38 | config OF_FLATTREE |
| 39 | bool | |
| 5ab5fc7e | 40 | select DTC |
| e6a6928c | 41 | select LIBFDT |
| 08d53aa5 | 42 | select CRC32 |
| e169cfbe | 43 | |
| e6ce1324 SN |
44 | config OF_EARLY_FLATTREE |
| 45 | bool | |
| ff4c25f2 | 46 | select DMA_DECLARE_COHERENT if HAS_DMA |
| e6ce1324 SN |
47 | select OF_FLATTREE |
| 48 | ||
| 3cfc535c AS |
49 | config OF_PROMTREE |
| 50 | bool | |
| 51 | ||
| b56b5528 RH |
52 | config OF_KOBJ |
| 53 | def_bool SYSFS | |
| 54 | ||
| 0f22dd39 GL |
55 | # Hardly any platforms need this. It is safe to select, but only do so if you |
| 56 | # need it. | |
| fcdeb7fe | 57 | config OF_DYNAMIC |
| 121c92ca | 58 | bool "Support for dynamic device trees" if OF_UNITTEST |
| b56b5528 | 59 | select OF_KOBJ |
| 121c92ca GU |
60 | help |
| 61 | On some platforms, the device tree can be manipulated at runtime. | |
| 62 | While this option is selected automatically on such platforms, you | |
| 63 | can enable it manually to improve device tree unit test coverage. | |
| fcdeb7fe | 64 | |
| 6b884a8d GL |
65 | config OF_ADDRESS |
| 66 | def_bool y | |
| 6019a3d0 | 67 | depends on !SPARC && (HAS_IOMEM || UML) |
| 6b884a8d | 68 | |
| e3873444 GL |
69 | config OF_IRQ |
| 70 | def_bool y | |
| 63c60e3a | 71 | depends on !SPARC && IRQ_DOMAIN |
| e3873444 | 72 | |
| 4b6ba8aa DD |
73 | config OF_NET |
| 74 | depends on NETDEVICES | |
| 75 | def_bool y | |
| 76 | ||
| 3f0c8206 | 77 | config OF_RESERVED_MEM |
| 3f0c8206 | 78 | bool |
| 34e04eed | 79 | depends on OF_EARLY_FLATTREE |
| ff4c25f2 | 80 | default y if DMA_DECLARE_COHERENT || DMA_CMA |
| 3f0c8206 | 81 | |
| 7941b27b PA |
82 | config OF_RESOLVE |
| 83 | bool | |
| 84 | ||
| 7518b589 | 85 | config OF_OVERLAY |
| 5c776064 | 86 | bool "Device Tree overlays" |
| 7518b589 | 87 | select OF_DYNAMIC |
| 39a751a4 | 88 | select OF_FLATTREE |
| 7518b589 | 89 | select OF_RESOLVE |
| 121c92ca GU |
90 | help |
| 91 | Overlays are a method to dynamically modify part of the kernel's | |
| 92 | device tree with dynamically loaded data. | |
| 93 | While this option is selected automatically when needed, you can | |
| 94 | enable it manually to improve device tree unit test coverage. | |
| 7518b589 | 95 | |
| 298535c0 DD |
96 | config OF_NUMA |
| 97 | bool | |
| 98 | ||
| dabf6b36 ME |
99 | config OF_DMA_DEFAULT_COHERENT |
| 100 | # arches should select this if DMA is coherent by default for OF devices | |
| 101 | bool | |
| 102 | ||
| 0166dc11 | 103 | endif # OF |