drivers/of/Kconfig

   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_FLATTREE
  27         bool
  28         select DTC
  29         select LIBFDT
  30         select CRC32
  31
  32 config OF_EARLY_FLATTREE
  33         bool
  34         select OF_FLATTREE
  35
  36 config OF_PROMTREE
  37         bool
  38
  39 # Hardly any platforms need this.  It is safe to select, but only do so if you
  40 # need it.
  41 config OF_DYNAMIC
  42         bool "Support for dynamic device trees" if OF_UNITTEST
  43         help
  44           On some platforms, the device tree can be manipulated at runtime.
  45           While this option is selected automatically on such platforms, you
  46           can enable it manually to improve device tree unit test coverage.
  47
  48 config OF_ADDRESS
  49         def_bool y
  50         depends on !SPARC
  51         select OF_ADDRESS_PCI if PCI
  52
  53 config OF_ADDRESS_PCI
  54         bool
  55
  56 config OF_IRQ
  57         def_bool y
  58         depends on !SPARC && IRQ_DOMAIN
  59
  60 config OF_NET
  61         depends on NETDEVICES
  62         def_bool y
  63
  64 config OF_MDIO
  65         def_tristate PHYLIB
  66         depends on PHYLIB
  67         help
  68           OpenFirmware MDIO bus (Ethernet PHY) accessors
  69
  70 config OF_PCI
  71         def_tristate PCI
  72         depends on PCI
  73         help
  74           OpenFirmware PCI bus accessors
  75
  76 config OF_PCI_IRQ
  77         def_tristate PCI
  78         depends on OF_PCI && OF_IRQ
  79         help
  80           OpenFirmware PCI IRQ routing helpers
  81
  82 config OF_MTD
  83         depends on MTD
  84         def_bool y
  85
  86 config OF_RESERVED_MEM
  87         depends on OF_EARLY_FLATTREE
  88         bool
  89         help
  90           Helpers to allow for reservation of memory regions
  91
  92 config OF_RESOLVE
  93         bool
  94
  95 config OF_OVERLAY
  96         bool "Device Tree overlays"
  97         select OF_DYNAMIC
  98         select OF_RESOLVE
  99         help
 100           Overlays are a method to dynamically modify part of the kernel's
 101           device tree with dynamically loaded data.
 102           While this option is selected automatically when needed, you can
 103           enable it manually to improve device tree unit test coverage.
 104
 105 endif # OF