15ab5fc7eSGrant Likelyconfig DTC 25ab5fc7eSGrant Likely bool 35ab5fc7eSGrant Likely 40166dc11SRob Herringmenuconfig OF 50166dc11SRob Herring bool "Device Tree and Open Firmware support" 60166dc11SRob Herring help 70166dc11SRob Herring This option enables the device tree infrastructure. 80166dc11SRob Herring It is automatically selected by platforms that need it or can 90166dc11SRob Herring be enabled manually for unittests, overlays or 100166dc11SRob Herring compile-coverage. 11bcbefae2SStephen Rothwell 120166dc11SRob Herringif OF 135ab5fc7eSGrant Likely 1419fd7487SGrant Likelyconfig OF_UNITTEST 1519fd7487SGrant Likely bool "Device Tree runtime unit tests" 16649e0a77SRob Herring depends on OF_IRQ 17649e0a77SRob Herring select OF_EARLY_FLATTREE 182eb46da2SGrant Likely select OF_RESOLVE 1953a42093SGrant Likely help 2053a42093SGrant Likely This option builds in test cases for the device tree infrastructure 215d927086SGeert Uytterhoeven that are executed once at boot time, and the results dumped to the 2253a42093SGrant Likely console. 2353a42093SGrant Likely 2453a42093SGrant Likely If unsure, say N here, but this option is safe to enable. 2553a42093SGrant Likely 261b7c501bSRob Herringconfig OF_ALL_DTBS 271b7c501bSRob Herring bool "Build all Device Tree Blobs" 281b7c501bSRob Herring depends on COMPILE_TEST 291b7c501bSRob Herring select DTC 301b7c501bSRob Herring help 311b7c501bSRob Herring This option builds all possible Device Tree Blobs (DTBs) for the 321b7c501bSRob Herring current architecture. 331b7c501bSRob Herring 341b7c501bSRob Herring If unsure, say N here, but this option is safe to enable. 351b7c501bSRob Herring 36e169cfbeSGrant Likelyconfig OF_FLATTREE 37e169cfbeSGrant Likely bool 385ab5fc7eSGrant Likely select DTC 39e6a6928cSRob Herring select LIBFDT 4008d53aa5SArd Biesheuvel select CRC32 41e169cfbeSGrant Likely 42e6ce1324SStephen Neuendorfferconfig OF_EARLY_FLATTREE 43e6ce1324SStephen Neuendorffer bool 44e6ce1324SStephen Neuendorffer select OF_FLATTREE 45e6ce1324SStephen Neuendorffer 463cfc535cSAndres Salomonconfig OF_PROMTREE 473cfc535cSAndres Salomon bool 483cfc535cSAndres Salomon 490f22dd39SGrant Likely# Hardly any platforms need this. It is safe to select, but only do so if you 500f22dd39SGrant Likely# need it. 51fcdeb7feSGrant Likelyconfig OF_DYNAMIC 52121c92caSGeert Uytterhoeven bool "Support for dynamic device trees" if OF_UNITTEST 53121c92caSGeert Uytterhoeven help 54121c92caSGeert Uytterhoeven On some platforms, the device tree can be manipulated at runtime. 55121c92caSGeert Uytterhoeven While this option is selected automatically on such platforms, you 56121c92caSGeert Uytterhoeven can enable it manually to improve device tree unit test coverage. 57fcdeb7feSGrant Likely 586b884a8dSGrant Likelyconfig OF_ADDRESS 596b884a8dSGrant Likely def_bool y 6039da809eSRob Herring depends on !SPARC && HAS_IOMEM 6125a31579SGregory CLEMENT select OF_ADDRESS_PCI if PCI 6225a31579SGregory CLEMENT 6325a31579SGregory CLEMENTconfig OF_ADDRESS_PCI 6425a31579SGregory CLEMENT bool 656b884a8dSGrant Likely 66e3873444SGrant Likelyconfig OF_IRQ 67e3873444SGrant Likely def_bool y 6863c60e3aSGeert Uytterhoeven depends on !SPARC && IRQ_DOMAIN 69e3873444SGrant Likely 704b6ba8aaSDavid Daneyconfig OF_NET 714b6ba8aaSDavid Daney depends on NETDEVICES 724b6ba8aaSDavid Daney def_bool y 734b6ba8aaSDavid Daney 748bc487d1SGrant Likelyconfig OF_MDIO 758bc487d1SGrant Likely def_tristate PHYLIB 765ab5fc7eSGrant Likely depends on PHYLIB 778bc487d1SGrant Likely help 788bc487d1SGrant Likely OpenFirmware MDIO bus (Ethernet PHY) accessors 795ab5fc7eSGrant Likely 8004bea68bSSebastian Andrzej Siewiorconfig OF_PCI 8104bea68bSSebastian Andrzej Siewior def_tristate PCI 8298d9f30cSBenjamin Herrenschmidt depends on PCI 8304bea68bSSebastian Andrzej Siewior help 8404bea68bSSebastian Andrzej Siewior OpenFirmware PCI bus accessors 8504bea68bSSebastian Andrzej Siewior 8698d9f30cSBenjamin Herrenschmidtconfig OF_PCI_IRQ 8798d9f30cSBenjamin Herrenschmidt def_tristate PCI 8898d9f30cSBenjamin Herrenschmidt depends on OF_PCI && OF_IRQ 8998d9f30cSBenjamin Herrenschmidt help 9098d9f30cSBenjamin Herrenschmidt OpenFirmware PCI IRQ routing helpers 9198d9f30cSBenjamin Herrenschmidt 92770d7c39SJean-Christophe PLAGNIOL-VILLARDconfig OF_MTD 93770d7c39SJean-Christophe PLAGNIOL-VILLARD depends on MTD 94770d7c39SJean-Christophe PLAGNIOL-VILLARD def_bool y 95770d7c39SJean-Christophe PLAGNIOL-VILLARD 963f0c8206SMarek Szyprowskiconfig OF_RESERVED_MEM 973f0c8206SMarek Szyprowski depends on OF_EARLY_FLATTREE 983f0c8206SMarek Szyprowski bool 993f0c8206SMarek Szyprowski help 1003f0c8206SMarek Szyprowski Helpers to allow for reservation of memory regions 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 1087518b589SPantelis Antoniou select OF_RESOLVE 109121c92caSGeert Uytterhoeven help 110121c92caSGeert Uytterhoeven Overlays are a method to dynamically modify part of the kernel's 111121c92caSGeert Uytterhoeven device tree with dynamically loaded data. 112121c92caSGeert Uytterhoeven While this option is selected automatically when needed, you can 113121c92caSGeert Uytterhoeven enable it manually to improve device tree unit test coverage. 1147518b589SPantelis Antoniou 1150166dc11SRob Herringendif # OF 116