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_ALL_DTBS
  27         bool "Build all Device Tree Blobs"
  28         depends on COMPILE_TEST
  29         select DTC
  30         help
  31           This option builds all possible Device Tree Blobs (DTBs) for the
  32           current architecture.
  33
  34           If unsure, say N here, but this option is safe to enable.
  35
  36 config OF_FLATTREE
  37         bool
  38         select DTC
  39         select LIBFDT
  40         select CRC32
  41
  42 config OF_EARLY_FLATTREE
  43         bool
  44         select OF_FLATTREE
  45
  46 config OF_PROMTREE
  47         bool
  48
  49 # Hardly any platforms need this.  It is safe to select, but only do so if you
  50 # need it.
  51 config OF_DYNAMIC
  52         bool "Support for dynamic device trees" if OF_UNITTEST
  53         help
  54           On some platforms, the device tree can be manipulated at runtime.
  55           While this option is selected automatically on such platforms, you
  56           can enable it manually to improve device tree unit test coverage.
  57
  58 config OF_ADDRESS
  59         def_bool y
  60         depends on !SPARC && HAS_IOMEM
  61         select OF_ADDRESS_PCI if PCI
  62
  63 config OF_ADDRESS_PCI
  64         bool
  65
  66 config OF_IRQ
  67         def_bool y
  68         depends on !SPARC && IRQ_DOMAIN
  69
  70 config OF_NET
  71         depends on NETDEVICES
  72         def_bool y
  73
  74 config OF_MDIO
  75         def_tristate PHYLIB
  76         depends on PHYLIB
  77         help
  78           OpenFirmware MDIO bus (Ethernet PHY) accessors
  79
  80 config OF_PCI
  81         def_tristate PCI
  82         depends on PCI
  83         help
  84           OpenFirmware PCI bus accessors
  85
  86 config OF_PCI_IRQ
  87         def_tristate PCI
  88         depends on OF_PCI && OF_IRQ
  89         help
  90           OpenFirmware PCI IRQ routing helpers
  91
  92 config OF_MTD
  93         depends on MTD
  94         def_bool y
  95
  96 config OF_RESERVED_MEM
  97         depends on OF_EARLY_FLATTREE
  98         bool
  99         help
 100           Helpers to allow for reservation of memory regions
 101
 102 config OF_RESOLVE
 103         bool
 104
 105 config OF_OVERLAY
 106         bool "Device Tree overlays"
 107         select OF_DYNAMIC
 108         select OF_RESOLVE
 109         help
 110           Overlays are a method to dynamically modify part of the kernel's
 111           device tree with dynamically loaded data.
 112           While this option is selected automatically when needed, you can
 113           enable it manually to improve device tree unit test coverage.
 114
 115 endif # OF