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Linux/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

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