linux/drivers/of/Kconfig
Rob Herring e6a6928c3e of/fdt: Convert FDT functions to use libfdt
The kernel FDT functions predate libfdt and are much more limited in
functionality. Also, the kernel functions and libfdt functions are
not compatible with each other because they have different definitions
of node offsets. To avoid this incompatibility and in preparation to
add more FDT parsing functions which will need libfdt, let's first
convert the existing code to use libfdt.

The FDT unflattening, top-level FDT scanning, and property retrieval
functions are converted to use libfdt. The scanning code should be
re-worked to be more efficient and understandable by using libfdt to
find nodes directly by path or compatible strings.

Signed-off-by: Rob Herring <robh@kernel.org>
Tested-by: Michal Simek <michal.simek@xilinx.com>
Tested-by: Grant Likely <grant.likely@linaro.org>
Tested-by: Stephen Chivers <schivers@csc.com>
2014-04-30 00:59:15 -05:00

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config DTC
bool
config OF
bool
menu "Device Tree and Open Firmware support"
depends on OF
config OF_SELFTEST
bool "Device Tree Runtime self tests"
depends on OF_IRQ
help
This option builds in test cases for the device tree infrastructure
that are executed once at boot time, and the results dumped to the
console.
If unsure, say N here, but this option is safe to enable.
config OF_FLATTREE
bool
select DTC
select LIBFDT
config OF_EARLY_FLATTREE
bool
select OF_FLATTREE
config OF_PROMTREE
bool
# Hardly any platforms need this. It is safe to select, but only do so if you
# need it.
config OF_DYNAMIC
bool
config OF_ADDRESS
def_bool y
depends on !SPARC
select OF_ADDRESS_PCI if PCI
config OF_ADDRESS_PCI
bool
config OF_IRQ
def_bool y
depends on !SPARC
config OF_NET
depends on NETDEVICES
def_bool y
config OF_MDIO
def_tristate PHYLIB
depends on PHYLIB
help
OpenFirmware MDIO bus (Ethernet PHY) accessors
config OF_PCI
def_tristate PCI
depends on PCI
help
OpenFirmware PCI bus accessors
config OF_PCI_IRQ
def_tristate PCI
depends on OF_PCI && OF_IRQ
help
OpenFirmware PCI IRQ routing helpers
config OF_MTD
depends on MTD
def_bool y
config OF_RESERVED_MEM
depends on OF_EARLY_FLATTREE
bool
help
Helpers to allow for reservation of memory regions
endmenu # OF