AndroidKernel: Building dtb.img to support header version 2

The dtb.img is made by concatenating all the compiled dtbs
after the kernel is compiled. This dtb.img is then added to be
a part of the boot.img.

Change-Id: I9684126c312e3f5988b1eaa298b37037a11fe747
Signed-off-by: Rahul Shahare <rshaha@codeaurora.org>

diff --git a/AndroidKernel.mk b/AndroidKernel.mk
index 55671d1..c7d3c22 100644 (file)
--- a/AndroidKernel.mk
+++ b/AndroidKernel.mk
@@ -95,8 +95,15 @@ endif
 ifeq ($(TARGET_KERNEL_APPEND_DTB), true)
 $(info Using appended DTB)
 TARGET_PREBUILT_INT_KERNEL := $(TARGET_PREBUILT_INT_KERNEL)-dtb
+else
+$(info Using DTB Image)
+INSTALLED_DTBIMAGE_TARGET := $(PRODUCT_OUT)/dtb.img
 endif
 
+# Creating a dtb.img once the kernel is compiled if TARGET_KERNEL_APPEND_DTB is set to be false
+$(INSTALLED_DTBIMAGE_TARGET): $(INSTALLED_KERNEL_TARGET)
+       cat $(KERNEL_OUT)/arch/$(KERNEL_ARCH)/boot/dts/qcom/*.dtb > $@
+
 KERNEL_HEADERS_INSTALL := $(KERNEL_OUT)/usr
 KERNEL_MODULES_INSTALL ?= system
 KERNEL_MODULES_OUT ?= $(PRODUCT_OUT)/$(KERNEL_MODULES_INSTALL)/lib/modules