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https://github.com/edk2-porting/linux-next.git
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e6ce1324e4
The device tree code is now in two pieces: some which can be used generically
on any platform which selects CONFIG_OF_FLATTREE, and some early which is used
at boot time on only a few architectures. This patch segregates the early
code so that only those architectures which care about it need compile it.
This also means that some of the requirements in the early code (such as
a cmd_line variable) that most architectures (e.g. X86) don't provide
can be ignored.
Signed-off-by: Stephen Neuendorffer <stephen.neuendorffer@xilinx.com>
[grant.likely@secretlab.ca: remove extra blank line addition]
[grant.likely@secretlab.ca: fixed incorrect #ifdef CONFIG_EARLY_FLATTREE check]
[grant.likely@secretlab.ca: Made OF_EARLY_FLATTREE select instead of depend
on OF_FLATTREE]
Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
73 lines
1.1 KiB
Plaintext
73 lines
1.1 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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endmenu # OF
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