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| author | Scott Wood <scottwood@freescale.com> | 2007-04-17 09:24:51 +1000 |
|---|---|---|
| committer | Paul Mackerras <paulus@samba.org> | 2007-04-24 21:31:53 +1000 |
| commit | 270429baa928fa6beff4042a7701944e23396417 (patch) | |
| tree | 025a98f94e1fc721726c152118d305fcd55b805a /arch | |
| parent | b97d27914354619ec6883ffe08dbd9c8e4b826b7 (diff) | |
| download | blackbird-op-linux-270429baa928fa6beff4042a7701944e23396417.tar.gz blackbird-op-linux-270429baa928fa6beff4042a7701944e23396417.zip | |
[POWERPC] bootwrapper: Add CONFIG_DEVICE_TREE
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>
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/powerpc/Kconfig | 24 |
1 files changed, 24 insertions, 0 deletions
diff --git a/arch/powerpc/Kconfig b/arch/powerpc/Kconfig index 26713da1b524..9b9c00ee688d 100644 --- a/arch/powerpc/Kconfig +++ b/arch/powerpc/Kconfig @@ -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 |
