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96e0a0797e
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>
79 lines
1.2 KiB
Plaintext
79 lines
1.2 KiB
Plaintext
config DTC
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bool
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config OF
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bool
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menu "Device Tree and Open Firmware support"
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depends on OF
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config PROC_DEVICETREE
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bool "Support for device tree in /proc"
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depends on PROC_FS && !SPARC
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help
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This option adds a device-tree directory under /proc which contains
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an image of the device tree that the kernel copies from Open
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Firmware or other boot firmware. If unsure, say Y here.
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config OF_FLATTREE
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bool
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select DTC
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config OF_EARLY_FLATTREE
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bool
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select OF_FLATTREE
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config OF_PROMTREE
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bool
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config OF_DYNAMIC
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def_bool y
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depends on PPC_OF
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config OF_ADDRESS
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def_bool y
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depends on !SPARC
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config OF_IRQ
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def_bool y
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depends on !SPARC
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config OF_DEVICE
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def_bool y
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config OF_GPIO
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def_bool y
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depends on GPIOLIB && !SPARC
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help
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OpenFirmware GPIO accessors
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config OF_I2C
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def_tristate I2C
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depends on I2C && !SPARC
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help
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OpenFirmware I2C accessors
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config OF_NET
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depends on NETDEVICES
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def_bool y
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config OF_SPI
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def_tristate SPI
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depends on SPI && !SPARC
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help
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OpenFirmware SPI accessors
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config OF_MDIO
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def_tristate PHYLIB
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depends on PHYLIB
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help
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OpenFirmware MDIO bus (Ethernet PHY) accessors
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config OF_PCI
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def_tristate PCI
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depends on PCI && (PPC || MICROBLAZE || X86)
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help
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OpenFirmware PCI bus accessors
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endmenu # OF
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