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-rw-r--r--linux/linux.mk37
1 files changed, 36 insertions, 1 deletions
diff --git a/linux/linux.mk b/linux/linux.mk
index 844ce5529..d466228f2 100644
--- a/linux/linux.mk
+++ b/linux/linux.mk
@@ -58,6 +58,13 @@ else ifeq ($(BR2_LINUX_KERNEL_USE_CUSTOM_DTS),y)
KERNEL_DTS_NAME = $(basename $(notdir $(BR2_LINUX_KERNEL_CUSTOM_DTS_PATH)))
endif
+ifeq ($(BR2_LINUX_KERNEL_APPENDED_DTB),y)
+ifneq ($(words $(KERNEL_DTS_NAME)),1)
+$(error Kernel with appended device tree needs exactly one DTS source.\
+ Check BR2_LINUX_KERNEL_INTREE_DTS_NAME or BR2_LINUX_KERNEL_CUSTOM_DTS_PATH.)
+endif
+endif
+
ifeq ($(BR2_LINUX_KERNEL_IMAGE_TARGET_CUSTOM),y)
LINUX_IMAGE_NAME=$(call qstrip,$(BR2_LINUX_KERNEL_IMAGE_TARGET_NAME))
else
@@ -68,10 +75,14 @@ LINUX_IMAGE_NAME=vmImage
else
LINUX_IMAGE_NAME=uImage
endif
+else ifeq ($(BR2_LINUX_KERNEL_APPENDED_UIMAGE),y)
+LINUX_IMAGE_NAME=uImage
else ifeq ($(BR2_LINUX_KERNEL_BZIMAGE),y)
LINUX_IMAGE_NAME=bzImage
else ifeq ($(BR2_LINUX_KERNEL_ZIMAGE),y)
LINUX_IMAGE_NAME=zImage
+else ifeq ($(BR2_LINUX_KERNEL_APPENDED_ZIMAGE),y)
+LINUX_IMAGE_NAME=zImage
else ifeq ($(BR2_LINUX_KERNEL_VMLINUX_BIN),y)
LINUX_IMAGE_NAME=vmlinux.bin
else ifeq ($(BR2_LINUX_KERNEL_VMLINUX),y)
@@ -81,6 +92,12 @@ LINUX_IMAGE_NAME=vmlinuz
endif
endif
+ifeq ($(BR2_LINUX_KERNEL_APPENDED_DTB),y)
+LINUX_IMAGE_TARGET=zImage
+else
+LINUX_IMAGE_TARGET=$(LINUX_IMAGE_NAME)
+endif
+
# Compute the arch path, since i386 and x86_64 are in arch/x86 and not
# in arch/$(KERNEL_ARCH). Even if the kernel creates symbolic links
# for bzImage, arch/i386 and arch/x86_64 do not exist when copying the
@@ -161,10 +178,13 @@ define LINUX_CONFIGURE_CMDS
$(call KCONFIG_SET_OPT,CONFIG_UEVENT_HELPER_PATH,\"/sbin/mdev\",$(@D)/.config))
$(if $(BR2_PACKAGE_SYSTEMD),
$(call KCONFIG_ENABLE_OPT,CONFIG_CGROUPS,$(@D)/.config))
+ $(if $(BR2_LINUX_KERNEL_APPENDED_DTB),
+ $(call KCONFIG_ENABLE_OPT,CONFIG_ARM_APPENDED_DTB,$(@D)/.config))
yes '' | $(TARGET_MAKE_ENV) $(MAKE1) $(LINUX_MAKE_FLAGS) -C $(@D) oldconfig
endef
ifeq ($(BR2_LINUX_KERNEL_DTS_SUPPORT),y)
+ifeq ($(BR2_LINUX_KERNEL_DTB_IS_SELF_BUILT),)
define LINUX_BUILD_DTB
$(TARGET_MAKE_ENV) $(MAKE) $(LINUX_MAKE_FLAGS) -C $(@D) $(KERNEL_DTS_NAME).dtb
endef
@@ -172,17 +192,32 @@ define LINUX_INSTALL_DTB
cp $(KERNEL_ARCH_PATH)/boot/$(KERNEL_DTS_NAME).dtb $(BINARIES_DIR)/
endef
endif
+endif
+
+ifeq ($(BR2_LINUX_KERNEL_APPENDED_UIMAGE),y)
+define LINUX_APPEND_DTB
+ cat $(KERNEL_ARCH_PATH)/boot/$(KERNEL_DTS_NAME).dtb >> $(KERNEL_ARCH_PATH)/boot/zImage
+ # We need to generate the uImage here after that so that the uImage is
+ # generated with the right image size.
+ $(TARGET_MAKE_ENV) $(MAKE) $(LINUX_MAKE_FLAGS) -C $(@D) uImage
+endef
+else ifeq ($(BR2_LINUX_KERNEL_APPENDED_ZIMAGE),y)
+define LINUX_APPEND_DTB
+ cat $(KERNEL_ARCH_PATH)/boot/$(KERNEL_DTS_NAME).dtb >> $(KERNEL_ARCH_PATH)/boot/zImage
+endef
+endif
# Compilation. We make sure the kernel gets rebuilt when the
# configuration has changed.
define LINUX_BUILD_CMDS
$(if $(BR2_LINUX_KERNEL_USE_CUSTOM_DTS),
cp $(BR2_LINUX_KERNEL_CUSTOM_DTS_PATH) $(KERNEL_ARCH_PATH)/boot/dts/)
- $(TARGET_MAKE_ENV) $(MAKE) $(LINUX_MAKE_FLAGS) -C $(@D) $(LINUX_IMAGE_NAME)
+ $(TARGET_MAKE_ENV) $(MAKE) $(LINUX_MAKE_FLAGS) -C $(@D) $(LINUX_IMAGE_TARGET)
@if grep -q "CONFIG_MODULES=y" $(@D)/.config; then \
$(TARGET_MAKE_ENV) $(MAKE) $(LINUX_MAKE_FLAGS) -C $(@D) modules ; \
fi
$(LINUX_BUILD_DTB)
+ $(LINUX_APPEND_DTB)
endef