[Buildroot] [PATCH v1] Add a load address option for building uImage on 3.7+ multi-platform kernels.
julien.boibessot at free.fr
julien.boibessot at free.fr
Wed Mar 13 21:13:24 UTC 2013
From: Julien Boibessot <julien.boibessot at armadeus.com>
Signed-off-by: Julien Boibessot <julien.boibessot at armadeus.com>
---
Changes since RFC:
* Took Daniel Price and Arnout Vandecappelle remarks into account to be more
explicit in the description of the option + add ARM dependancy.
* Changed the way option is used in linux.mk to prevent empty LOADADDR=
linux/Config.in | 13 +++++++++++++
linux/linux.mk | 5 +++++
2 files changed, 18 insertions(+), 0 deletions(-)
diff --git a/linux/Config.in b/linux/Config.in
index 94ce951..a44880f 100644
--- a/linux/Config.in
+++ b/linux/Config.in
@@ -213,6 +213,19 @@ config BR2_LINUX_KERNEL_IMAGE_TARGET_NAME
Specify the kernel make target to build the kernel that you
need.
+config BR2_LINUX_KERNEL_UIMAGE_LOADADDR
+ string "load address (for 3.7+ multi-platform image)"
+ depends on BR2_arm || BR2_armeb
+ depends on BR2_LINUX_KERNEL_UIMAGE || BR2_LINUX_KERNEL_APPENDED_UIMAGE
+ help
+ If your ARM system's Linux kernel is configured with the new (3.7+)
+ multi-architecture support (CONFIG_ARCH_MULTIPLATFORM=y in your
+ kernel config), then it is necessary to specify a kernel load address
+ when building the uImage. This should be a hexadecimal string
+ beginning with 0x, for example: 0x00008000.
+
+ If unsure, let this option empty.
+
config BR2_LINUX_KERNEL_DTS_SUPPORT
bool "Device tree support"
help
diff --git a/linux/linux.mk b/linux/linux.mk
index 0352acd..c8f7b57 100644
--- a/linux/linux.mk
+++ b/linux/linux.mk
@@ -95,6 +95,11 @@ LINUX_IMAGE_NAME=vmlinuz
endif
endif
+LINUX_KERNEL_UIMAGE_LOADADDR=$(call qstrip,$(BR2_LINUX_KERNEL_UIMAGE_LOADADDR))
+ifneq ($(LINUX_KERNEL_UIMAGE_LOADADDR),)
+LINUX_MAKE_FLAGS+=LOADADDR=$(LINUX_KERNEL_UIMAGE_LOADADDR)
+endif
+
ifeq ($(BR2_LINUX_KERNEL_APPENDED_DTB),y)
LINUX_IMAGE_TARGET=zImage
else
--
1.7.5.4
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