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linux-next/drivers/of/Kconfig
Sebastian Andrzej Siewior 96e0a0797e x86: dtb: Add support for PCI devices backed by dtb nodes
x86_of_pci_init() does two things:

- it provides a generic irq enable and disable function. enable queries
  the device tree for the interrupt information, calls ->xlate on the
  irq host and updates the pci->irq information for the device.

- it walks through PCI bus(es) in the device tree and adds its children
  (device) nodes to appropriate pci_dev nodes in kernel. So the dtb
  node information is available at probe time of the PCI device.

Adding a PCI bus based on the information in the device tree is
currently not supported. Right now direct access via ioports is used.

Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Tested-by: Dirk Brandewie <dirk.brandewie@gmail.com>
Acked-by: Grant Likely <grant.likely@secretlab.ca>
Cc: sodaville@linutronix.de
Cc: devicetree-discuss@lists.ozlabs.org
LKML-Reference: <1298405266-1624-8-git-send-email-bigeasy@linutronix.de>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2011-02-23 22:27:53 +01:00

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config DTC
bool
config OF
bool
menu "Device Tree and Open Firmware support"
depends on OF
config PROC_DEVICETREE
bool "Support for device tree in /proc"
depends on PROC_FS && !SPARC
help
This option adds a device-tree directory under /proc which contains
an image of the device tree that the kernel copies from Open
Firmware or other boot firmware. If unsure, say Y here.
config OF_FLATTREE
bool
select DTC
config OF_EARLY_FLATTREE
bool
select OF_FLATTREE
config OF_PROMTREE
bool
config OF_DYNAMIC
def_bool y
depends on PPC_OF
config OF_ADDRESS
def_bool y
depends on !SPARC
config OF_IRQ
def_bool y
depends on !SPARC
config OF_DEVICE
def_bool y
config OF_GPIO
def_bool y
depends on GPIOLIB && !SPARC
help
OpenFirmware GPIO accessors
config OF_I2C
def_tristate I2C
depends on I2C && !SPARC
help
OpenFirmware I2C accessors
config OF_NET
depends on NETDEVICES
def_bool y
config OF_SPI
def_tristate SPI
depends on SPI && !SPARC
help
OpenFirmware SPI accessors
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 && (PPC || MICROBLAZE || X86)
help
OpenFirmware PCI bus accessors
endmenu # OF