Kernel.mk

#if use probuilt kernel or build kernel from source code
-include device/hardkernel/common/media_modules.mk
-include device/hardkernel/common/wifi_modules.mk
KERNEL_ROOTDIR := common
KERNEL_KO_OUT := $(PRODUCT_OUT)/obj/lib_vendor
USE_PREBUILT_KERNEL := false

INSTALLED_KERNEL_TARGET := $(PRODUCT_OUT)/kernel

BOARD_MKBOOTIMG_ARGS := --kernel_offset $(BOARD_KERNEL_OFFSET)

KERNEL_DEVICETREE := meson64_odroidn2_android
KERNEL_DEFCONFIG := odroidn2_android_defconfig
KERNEL_ARCH := arm64

KERNEL_OUT := $(TARGET_OUT_INTERMEDIATES)/KERNEL_OBJ
KERNEL_CONFIG := $(KERNEL_OUT)/.config
INTERMEDIATES_KERNEL := $(KERNEL_OUT)/arch/$(KERNEL_ARCH)/boot/Image.gz
TARGET_AMLOGIC_INT_KERNEL := $(KERNEL_OUT)/arch/$(KERNEL_ARCH)/boot/uImage
TARGET_AMLOGIC_INT_RECOVERY_KERNEL := $(KERNEL_OUT)/arch/$(KERNEL_ARCH)/boot/Image_recovery

BOARD_VENDOR_KERNEL_MODULES += \

BOARD_VENDOR_KERNEL_MODULES	+= $(DEFAULT_MEDIA_KERNEL_MODULES)
BOARD_VENDOR_KERNEL_MODULES     += $(DEFAULT_WIFI_KERNEL_MODULES)
BOARD_VENDOR_KERNEL_MODULES     += $(PRODUCT_OUT)/obj/lib_vendor/cp210x.ko
BOARD_VENDOR_KERNEL_MODULES     += $(PRODUCT_OUT)/obj/lib_vendor/ch341.ko
BOARD_VENDOR_KERNEL_MODULES     += $(PRODUCT_OUT)/obj/lib_vendor/ftdi_sio.ko

WIFI_OUT  := $(TARGET_OUT_INTERMEDIATES)/hardware/wifi

PREFIX_CROSS_COMPILE=aarch64-linux-gnu-

KERNEL_KO_OUT := $(PRODUCT_OUT)/obj/lib_vendor

define cp-modules
	mkdir -p $(PRODUCT_OUT)/root/boot
	mkdir -p $(KERNEL_KO_OUT)
#	cp $(WIFI_OUT)/broadcom/drivers/ap6xxx/broadcm_40181/dhd.ko $(TARGET_OUT)/lib/
#	cp $(KERNEL_OUT)/../hardware/amlogic/pmu/aml_pmu_dev.ko $(TARGET_OUT)/lib/
#	cp $(shell pwd)/hardware/amlogic/thermal/aml_thermal.ko $(TARGET_OUT)/lib/
#	cp $(KERNEL_OUT)/../hardware/amlogic/nand/amlnf/aml_nftl_dev.ko $(PRODUCT_OUT)/root/boot/
endef

$(KERNEL_OUT):
	mkdir -p $(KERNEL_OUT)

$(KERNEL_CONFIG): $(KERNEL_OUT)
	$(MAKE) -C $(KERNEL_ROOTDIR) O=../$(KERNEL_OUT) ARCH=$(KERNEL_ARCH) CROSS_COMPILE=$(PREFIX_CROSS_COMPILE) $(KERNEL_DEFCONFIG)

BOARD_MKBOOTIMG_ARGS := --kernel_offset $(BOARD_KERNEL_OFFSET)

$(INTERMEDIATES_KERNEL): $(KERNEL_OUT) $(KERNEL_CONFIG)
	@echo "make Image"
	$(MAKE) -C $(KERNEL_ROOTDIR) O=../$(KERNEL_OUT) ARCH=$(KERNEL_ARCH) CROSS_COMPILE=$(PREFIX_CROSS_COMPILE)
	$(MAKE) CROSS_COMPILE=$(PREFIX_CROSS_COMPILE) -f device/hardkernel/common/wifi_driver.mk $(WIFI_MODULE)
	$(cp-modules)
	$(media-modules)
	mkdir -p $(PRODUCT_OUT)/$(TARGET_COPY_OUT_VENDOR)/lib/modules/
	find $(KERNEL_OUT) -name *.ko | xargs -i cp {} $(KERNEL_KO_OUT)/
	cp $(KERNEL_KO_OUT)/* $(PRODUCT_OUT)/$(TARGET_COPY_OUT_VENDOR)/lib/modules/

kerneltags: $(KERNEL_OUT)
	$(MAKE) -C $(KERNEL_ROOTDIR) O=../$(KERNEL_OUT) ARCH=$(KERNEL_ARCH) CROSS_COMPILE=$(PREFIX_CROSS_COMPILE) tags

kernelconfig: $(KERNEL_OUT) $(KERNEL_CONFIG)
	env KCONFIG_NOTIMESTAMP=true \
	     $(MAKE) -C $(KERNEL_ROOTDIR) O=../$(KERNEL_OUT) ARCH=$(KERNEL_ARCH) CROSS_COMPILE=$(PREFIX_CROSS_COMPILE) menuconfig

savekernelconfig: $(KERNEL_OUT) $(KERNEL_CONFIG)
	env KCONFIG_NOTIMESTAMP=true \
	     $(MAKE) -C $(KERNEL_ROOTDIR) O=../$(KERNEL_OUT) ARCH=$(KERNEL_ARCH) CROSS_COMPILE=$(PREFIX_CROSS_COMPILE) savedefconfig
	@echo
	@echo Saved to $(KERNEL_OUT)/defconfig
	@echo
	@echo handly merge to "$(KERNEL_ROOTDIR)/arch/$(KERNEL_ARCH)/configs/$(KERNEL_DEFCONFIG)" if need
	@echo

build-modules-quick:
	    $(media-modules)

$(INSTALLED_KERNEL_TARGET): $(INTERMEDIATES_KERNEL) | $(ACP)
	@echo "Kernel installed"
	$(transform-prebuilt-to-target)

-include device/hardkernel/common/gpu/gondul-kernel.mk

$(BOARD_VENDOR_KERNEL_MODULES): $(INSTALLED_KERNEL_TARGET)
	@echo "BOARD_VENDOR_KERNEL_MODULES: $(BOARD_VENDOR_KERNEL_MODULES)"


.PHONY: bootimage-quick
bootimage-quick: $(INTERMEDIATES_KERNEL)
	cp -v $(INTERMEDIATES_KERNEL) $(INSTALLED_KERNEL_TARGET)
	out/host/linux-x86/bin/mkbootfs $(PRODUCT_OUT)/root | \
	out/host/linux-x86/bin/minigzip > $(PRODUCT_OUT)/ramdisk.img
	out/host/linux-x86/bin/mkbootimg  --kernel $(INTERMEDIATES_KERNEL) \
		--base 0x0 \
		--kernel_offset 0x1080000 \
		--ramdisk $(PRODUCT_OUT)/ramdisk.img \
		$(BOARD_MKBOOTIMG_ARGS) \
		--output $(PRODUCT_OUT)/boot.img
	ls -l $(PRODUCT_OUT)/boot.img
	echo "Done building boot.img"

.PHONY: recoveryimage-quick
recoveryimage-quick: $(INTERMEDIATES_KERNEL)
	cp -v $(INTERMEDIATES_KERNEL) $(INSTALLED_KERNEL_TARGET)
	out/host/linux-x86/bin/mkbootfs $(PRODUCT_OUT)/recovery/root | \
	out/host/linux-x86/bin/minigzip > $(PRODUCT_OUT)/ramdisk-recovery.img
	out/host/linux-x86/bin/mkbootimg  --kernel $(INTERMEDIATES_KERNEL) \
		--base 0x0 \
		--kernel_offset 0x1080000 \
		--ramdisk $(PRODUCT_OUT)/ramdisk-recovery.img \
		$(BOARD_MKBOOTIMG_ARGS) \
		--output $(PRODUCT_OUT)/recovery.img
	ls -l $(PRODUCT_OUT)/recovery.img
	echo "Done building recovery.img"

.PHONY: kernelconfig

.PHONY: savekernelconfig

$(PRODUCT_OUT)/ramdisk.img: $(INSTALLED_KERNEL_TARGET)
$(PRODUCT_OUT)/system.img: $(INSTALLED_KERNEL_TARGET)