1af6074fcSRob Herring# SPDX-License-Identifier: GPL-2.0 25ab5fc7eSGrant Likelyconfig DTC 35ab5fc7eSGrant Likely bool 45ab5fc7eSGrant Likely 5*654102dfSMasahiro Yamadaconfig GENERIC_BUILTIN_DTB 6*654102dfSMasahiro Yamada bool 7*654102dfSMasahiro Yamada 8*654102dfSMasahiro Yamadaconfig BUILTIN_DTB_ALL 9*654102dfSMasahiro Yamada bool 10*654102dfSMasahiro Yamada 110166dc11SRob Herringmenuconfig OF 120166dc11SRob Herring bool "Device Tree and Open Firmware support" 130166dc11SRob Herring help 140166dc11SRob Herring This option enables the device tree infrastructure. 150166dc11SRob Herring It is automatically selected by platforms that need it or can 160166dc11SRob Herring be enabled manually for unittests, overlays or 170166dc11SRob Herring compile-coverage. 18bcbefae2SStephen Rothwell 190166dc11SRob Herringif OF 205ab5fc7eSGrant Likely 2119fd7487SGrant Likelyconfig OF_UNITTEST 2219fd7487SGrant Likely bool "Device Tree runtime unit tests" 237b937cc2SFrank Rowand depends on OF_EARLY_FLATTREE 246019a3d0SRob Herring select IRQ_DOMAIN 252eb46da2SGrant Likely select OF_RESOLVE 2653a42093SGrant Likely help 2753a42093SGrant Likely This option builds in test cases for the device tree infrastructure 285d927086SGeert Uytterhoeven that are executed once at boot time, and the results dumped to the 2953a42093SGrant Likely console. 3053a42093SGrant Likely 31f381b31aSFrank Rowand This option should only be enabled for a development kernel. The tests 32f381b31aSFrank Rowand will taint the kernel with TAINT_TEST. The tests will cause ERROR and 33f381b31aSFrank Rowand WARNING messages to print on the console. The tests will cause stack 34f381b31aSFrank Rowand traces to print on the console. It is possible that the tests will 35f381b31aSFrank Rowand leave the devicetree in a corrupted state. 36f381b31aSFrank Rowand 37f381b31aSFrank Rowand The unittest output will be verbose. Copy the output to a file 38f381b31aSFrank Rowand via capturing the console output or via the dmesg command. Process 39f381b31aSFrank Rowand this file with scripts/dtc/of_unittest_expect to reduce the 40f381b31aSFrank Rowand verbosity, test whether expected output is present, and to 41f381b31aSFrank Rowand summarize the results. 42f381b31aSFrank Rowand 43f381b31aSFrank Rowand If unsure, say N here. This option is not safe to enable. 4453a42093SGrant Likely 45893ecc6dSStephen Boydconfig OF_KUNIT_TEST 46893ecc6dSStephen Boyd tristate "Devicetree KUnit Test" if !KUNIT_ALL_TESTS 47893ecc6dSStephen Boyd depends on KUNIT 48893ecc6dSStephen Boyd default KUNIT_ALL_TESTS 49893ecc6dSStephen Boyd help 50893ecc6dSStephen Boyd This option builds KUnit unit tests for device tree infrastructure. 51893ecc6dSStephen Boyd 52893ecc6dSStephen Boyd If unsure, say N here, but this option is safe to enable. 53893ecc6dSStephen Boyd 541b7c501bSRob Herringconfig OF_ALL_DTBS 551b7c501bSRob Herring bool "Build all Device Tree Blobs" 561b7c501bSRob Herring depends on COMPILE_TEST 571b7c501bSRob Herring select DTC 581b7c501bSRob Herring help 591b7c501bSRob Herring This option builds all possible Device Tree Blobs (DTBs) for the 601b7c501bSRob Herring current architecture. 611b7c501bSRob Herring 621b7c501bSRob Herring If unsure, say N here, but this option is safe to enable. 631b7c501bSRob Herring 64e169cfbeSGrant Likelyconfig OF_FLATTREE 65e169cfbeSGrant Likely bool 665ab5fc7eSGrant Likely select DTC 67e6a6928cSRob Herring select LIBFDT 6808d53aa5SArd Biesheuvel select CRC32 69e169cfbeSGrant Likely 70e6ce1324SStephen Neuendorfferconfig OF_EARLY_FLATTREE 717b937cc2SFrank Rowand def_bool OF && !(SPARC || ALPHA || HEXAGON || M68K || PARISC || S390) 727e08baf6SBaoquan He select DMA_DECLARE_COHERENT if HAS_DMA && HAS_IOMEM 73e6ce1324SStephen Neuendorffer select OF_FLATTREE 74e6ce1324SStephen Neuendorffer 753cfc535cSAndres Salomonconfig OF_PROMTREE 763cfc535cSAndres Salomon bool 773cfc535cSAndres Salomon 78b56b5528SRob Herringconfig OF_KOBJ 79b56b5528SRob Herring def_bool SYSFS 80b56b5528SRob Herring 810f22dd39SGrant Likely# Hardly any platforms need this. It is safe to select, but only do so if you 820f22dd39SGrant Likely# need it. 83fcdeb7feSGrant Likelyconfig OF_DYNAMIC 84121c92caSGeert Uytterhoeven bool "Support for dynamic device trees" if OF_UNITTEST 85b56b5528SRob Herring select OF_KOBJ 86121c92caSGeert Uytterhoeven help 87121c92caSGeert Uytterhoeven On some platforms, the device tree can be manipulated at runtime. 88121c92caSGeert Uytterhoeven While this option is selected automatically on such platforms, you 89121c92caSGeert Uytterhoeven can enable it manually to improve device tree unit test coverage. 90fcdeb7feSGrant Likely 916b884a8dSGrant Likelyconfig OF_ADDRESS 926b884a8dSGrant Likely def_bool y 936019a3d0SRob Herring depends on !SPARC && (HAS_IOMEM || UML) 946b884a8dSGrant Likely 95e3873444SGrant Likelyconfig OF_IRQ 96e3873444SGrant Likely def_bool y 9763c60e3aSGeert Uytterhoeven depends on !SPARC && IRQ_DOMAIN 98e3873444SGrant Likely 993f0c8206SMarek Szyprowskiconfig OF_RESERVED_MEM 1001ee292a6SRob Herring def_bool OF_EARLY_FLATTREE 1013f0c8206SMarek Szyprowski 1027941b27bSPantelis Antoniouconfig OF_RESOLVE 1037941b27bSPantelis Antoniou bool 1047941b27bSPantelis Antoniou 1057518b589SPantelis Antoniouconfig OF_OVERLAY 1065c776064SMatwey V. Kornilov bool "Device Tree overlays" 1077518b589SPantelis Antoniou select OF_DYNAMIC 10839a751a4SFrank Rowand select OF_FLATTREE 1097518b589SPantelis Antoniou select OF_RESOLVE 110121c92caSGeert Uytterhoeven help 111121c92caSGeert Uytterhoeven Overlays are a method to dynamically modify part of the kernel's 112121c92caSGeert Uytterhoeven device tree with dynamically loaded data. 113121c92caSGeert Uytterhoeven While this option is selected automatically when needed, you can 114121c92caSGeert Uytterhoeven enable it manually to improve device tree unit test coverage. 1157518b589SPantelis Antoniou 1165c9dd72dSStephen Boydconfig OF_OVERLAY_KUNIT_TEST 1175c9dd72dSStephen Boyd tristate "Device Tree overlay KUnit tests" if !KUNIT_ALL_TESTS 1185c9dd72dSStephen Boyd depends on KUNIT 1195c9dd72dSStephen Boyd default KUNIT_ALL_TESTS 120332857fdSStephen Boyd select DTC 1215c9dd72dSStephen Boyd help 1225c9dd72dSStephen Boyd This option builds KUnit unit tests for the device tree overlay code. 1235c9dd72dSStephen Boyd 1245c9dd72dSStephen Boyd If unsure, say N here, but this option is safe to enable. 1255c9dd72dSStephen Boyd 126298535c0SDavid Daneyconfig OF_NUMA 127298535c0SDavid Daney bool 128298535c0SDavid Daney 1290166dc11SRob Herringendif # OF 130