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[POWERPC] bootwrapper: Add CONFIG_DEVICE_TREE

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This provides a way to tell the bootwrapper makefile which device tree to
include by default.  The wrapper can still be invoked standalone to wrap
with a different device tree without reconfiguring the kernel, if that is
desired.

The user will only be asked to provide a device tree if the platform
selects CONFIG_WANT_DEVICE_TREE.

Signed-off-by: Scott Wood <scottwood@freescale.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
This commit is contained in:
Scott Wood 2007-04-17 09:24:51 +10:00 committed by Paul Mackerras
parent b97d279143
commit 270429baa9
1 changed files with 24 additions and 0 deletions
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24
arch/powerpc/Kconfig
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@ -162,6 +162,7 @@ config PPC_83xx
select FSL_SOC
select 83xx
select PPC_FPU
select WANT_DEVICE_TREE
config PPC_85xx
bool "Freescale 85xx"
@ -572,6 +573,29 @@ config SECCOMP
If unsure, say Y. Only embedded should say N here.
config WANT_DEVICE_TREE
bool
default n
config DEVICE_TREE
string "Static device tree source file"
depends on WANT_DEVICE_TREE
help
This specifies the device tree source (.dts) file to be
compiled and included when building the bootwrapper. If a
relative filename is given, then it will be relative to
arch/powerpc/boot/dts. If you are not using the bootwrapper,
or do not need to build a dts into the bootwrapper, this
field is ignored.
For example, this is required when building a cuImage target
for an older U-Boot, which cannot pass a device tree itself.
Such a kernel will not work with a newer U-Boot that tries to
pass a device tree (unless you tell it not to). If your U-Boot
does not mention a device tree in "help bootm", then use the
cuImage target and specify a device tree here. Otherwise, use
the uImage target and leave this field blank.
endmenu
config ISA_DMA_API