1af6074fcSRob Herring# SPDX-License-Identifier: GPL-2.0 25ab5fc7eSGrant Likelyconfig DTC 35ab5fc7eSGrant Likely bool 45ab5fc7eSGrant Likely 50166dc11SRob Herringmenuconfig OF 60166dc11SRob Herring bool "Device Tree and Open Firmware support" 70166dc11SRob Herring help 80166dc11SRob Herring This option enables the device tree infrastructure. 90166dc11SRob Herring It is automatically selected by platforms that need it or can 100166dc11SRob Herring be enabled manually for unittests, overlays or 110166dc11SRob Herring compile-coverage. 12bcbefae2SStephen Rothwell 130166dc11SRob Herringif OF 145ab5fc7eSGrant Likely 1519fd7487SGrant Likelyconfig OF_UNITTEST 1619fd7487SGrant Likely bool "Device Tree runtime unit tests" 176019a3d0SRob Herring depends on !SPARC 186019a3d0SRob Herring select IRQ_DOMAIN 19649e0a77SRob Herring select OF_EARLY_FLATTREE 202eb46da2SGrant Likely select OF_RESOLVE 2153a42093SGrant Likely help 2253a42093SGrant Likely This option builds in test cases for the device tree infrastructure 235d927086SGeert Uytterhoeven that are executed once at boot time, and the results dumped to the 2453a42093SGrant Likely console. 2553a42093SGrant Likely 2653a42093SGrant Likely If unsure, say N here, but this option is safe to enable. 2753a42093SGrant Likely 281b7c501bSRob Herringconfig OF_ALL_DTBS 291b7c501bSRob Herring bool "Build all Device Tree Blobs" 301b7c501bSRob Herring depends on COMPILE_TEST 311b7c501bSRob Herring select DTC 321b7c501bSRob Herring help 331b7c501bSRob Herring This option builds all possible Device Tree Blobs (DTBs) for the 341b7c501bSRob Herring current architecture. 351b7c501bSRob Herring 361b7c501bSRob Herring If unsure, say N here, but this option is safe to enable. 371b7c501bSRob Herring 38e169cfbeSGrant Likelyconfig OF_FLATTREE 39e169cfbeSGrant Likely bool 405ab5fc7eSGrant Likely select DTC 41e6a6928cSRob Herring select LIBFDT 4208d53aa5SArd Biesheuvel select CRC32 43e169cfbeSGrant Likely 44e6ce1324SStephen Neuendorfferconfig OF_EARLY_FLATTREE 45e6ce1324SStephen Neuendorffer bool 46e6ce1324SStephen Neuendorffer select OF_FLATTREE 47e6ce1324SStephen Neuendorffer 483cfc535cSAndres Salomonconfig OF_PROMTREE 493cfc535cSAndres Salomon bool 503cfc535cSAndres Salomon 51b56b5528SRob Herringconfig OF_KOBJ 52b56b5528SRob Herring def_bool SYSFS 53b56b5528SRob Herring 540f22dd39SGrant Likely# Hardly any platforms need this. It is safe to select, but only do so if you 550f22dd39SGrant Likely# need it. 56fcdeb7feSGrant Likelyconfig OF_DYNAMIC 57121c92caSGeert Uytterhoeven bool "Support for dynamic device trees" if OF_UNITTEST 58b56b5528SRob Herring select OF_KOBJ 59121c92caSGeert Uytterhoeven help 60121c92caSGeert Uytterhoeven On some platforms, the device tree can be manipulated at runtime. 61121c92caSGeert Uytterhoeven While this option is selected automatically on such platforms, you 62121c92caSGeert Uytterhoeven can enable it manually to improve device tree unit test coverage. 63fcdeb7feSGrant Likely 646b884a8dSGrant Likelyconfig OF_ADDRESS 656b884a8dSGrant Likely def_bool y 666019a3d0SRob Herring depends on !SPARC && (HAS_IOMEM || UML) 6725a31579SGregory CLEMENT select OF_ADDRESS_PCI if PCI 6825a31579SGregory CLEMENT 6925a31579SGregory CLEMENTconfig OF_ADDRESS_PCI 7025a31579SGregory CLEMENT bool 716b884a8dSGrant Likely 72e3873444SGrant Likelyconfig OF_IRQ 73e3873444SGrant Likely def_bool y 7463c60e3aSGeert Uytterhoeven depends on !SPARC && IRQ_DOMAIN 75e3873444SGrant Likely 764b6ba8aaSDavid Daneyconfig OF_NET 774b6ba8aaSDavid Daney depends on NETDEVICES 784b6ba8aaSDavid Daney def_bool y 794b6ba8aaSDavid Daney 808bc487d1SGrant Likelyconfig OF_MDIO 818bc487d1SGrant Likely def_tristate PHYLIB 825ab5fc7eSGrant Likely depends on PHYLIB 83a5e4bd99SArnd Bergmann select FIXED_PHY 848bc487d1SGrant Likely help 858bc487d1SGrant Likely OpenFirmware MDIO bus (Ethernet PHY) accessors 865ab5fc7eSGrant Likely 8704bea68bSSebastian Andrzej Siewiorconfig OF_PCI 8804bea68bSSebastian Andrzej Siewior def_tristate PCI 8998d9f30cSBenjamin Herrenschmidt depends on PCI 9004bea68bSSebastian Andrzej Siewior help 9104bea68bSSebastian Andrzej Siewior OpenFirmware PCI bus accessors 9204bea68bSSebastian Andrzej Siewior 9398d9f30cSBenjamin Herrenschmidtconfig OF_PCI_IRQ 9498d9f30cSBenjamin Herrenschmidt def_tristate PCI 9598d9f30cSBenjamin Herrenschmidt depends on OF_PCI && OF_IRQ 9698d9f30cSBenjamin Herrenschmidt help 9798d9f30cSBenjamin Herrenschmidt OpenFirmware PCI IRQ routing helpers 9898d9f30cSBenjamin Herrenschmidt 993f0c8206SMarek Szyprowskiconfig OF_RESERVED_MEM 1003f0c8206SMarek Szyprowski depends on OF_EARLY_FLATTREE 1013f0c8206SMarek Szyprowski bool 1023f0c8206SMarek Szyprowski help 1033f0c8206SMarek Szyprowski Helpers to allow for reservation of memory regions 1043f0c8206SMarek Szyprowski 1057941b27bSPantelis Antoniouconfig OF_RESOLVE 1067941b27bSPantelis Antoniou bool 1077941b27bSPantelis Antoniou 1087518b589SPantelis Antoniouconfig OF_OVERLAY 1095c776064SMatwey V. Kornilov bool "Device Tree overlays" 1107518b589SPantelis Antoniou select OF_DYNAMIC 1117518b589SPantelis Antoniou select OF_RESOLVE 112121c92caSGeert Uytterhoeven help 113121c92caSGeert Uytterhoeven Overlays are a method to dynamically modify part of the kernel's 114121c92caSGeert Uytterhoeven device tree with dynamically loaded data. 115121c92caSGeert Uytterhoeven While this option is selected automatically when needed, you can 116121c92caSGeert Uytterhoeven enable it manually to improve device tree unit test coverage. 1177518b589SPantelis Antoniou 118298535c0SDavid Daneyconfig OF_NUMA 119298535c0SDavid Daney bool 120298535c0SDavid Daney 1210166dc11SRob Herringendif # OF 122