--- /dev/null
+inherit kernel-uboot uboot-sign
+
+python __anonymous () {
+ kerneltypes = d.getVar('KERNEL_IMAGETYPES') or ""
+ if 'itbImage' in kerneltypes.split():
+ depends = d.getVar("DEPENDS")
+ depends = "%s u-boot-mkimage-native dtc-native" % depends
+ d.setVar("DEPENDS", depends)
+
+ if d.getVar("UBOOT_ARCH") == "x86":
+ replacementtype = "bzImage"
+ else:
+ replacementtype = "vmlinux"
+
+ # Override KERNEL_IMAGETYPE_FOR_MAKE variable, which is internal
+ # to kernel.bbclass . We have to override it, since we pack zImage
+ # (at least for now) into the fitImage .
+ typeformake = d.getVar("KERNEL_IMAGETYPE_FOR_MAKE") or ""
+ if 'itbImage' in typeformake.split():
+ d.setVar('KERNEL_IMAGETYPE_FOR_MAKE', typeformake.replace('itbImage', replacementtype))
+
+ image = d.getVar('INITRAMFS_IMAGE')
+ if image:
+ d.appendVarFlag('do_assemble_fitimage_initramfs', 'depends', ' ${INITRAMFS_IMAGE}:do_image_complete')
+
+ # Verified boot will sign the fitImage and append the public key to
+ # U-Boot dtb. We ensure the U-Boot dtb is deployed before assembling
+ # the fitImage:
+ if d.getVar('UBOOT_SIGN_ENABLE') == "1":
+ uboot_pn = d.getVar('PREFERRED_PROVIDER_u-boot') or 'u-boot'
+ d.appendVarFlag('do_assemble_fitimage', 'depends', ' %s:do_deploy' % uboot_pn)
+}
+
+# Options for the device tree compiler passed to mkimage '-D' feature:
+UBOOT_MKIMAGE_DTCOPTS ??= ""
+
+#
+# Emit the fitImage ITS header
+#
+# $1 ... .its filename
+fitimage_emit_fit_header() {
+ cat << EOF >> ${1}
+/dts-v1/;
+
+/ {
+ description = "U-Boot fitImage for ${DISTRO_NAME}/${PV}/${MACHINE}";
+ #address-cells = <1>;
+EOF
+}
+
+#
+# Emit the fitImage section bits
+#
+# $1 ... .its filename
+# $2 ... Section bit type: imagestart - image section start
+# confstart - configuration section start
+# sectend - section end
+# fitend - fitimage end
+#
+fitimage_emit_section_maint() {
+ case $2 in
+ imagestart)
+ cat << EOF >> ${1}
+
+ images {
+EOF
+ ;;
+ confstart)
+ cat << EOF >> ${1}
+
+ configurations {
+EOF
+ ;;
+ sectend)
+ cat << EOF >> ${1}
+ };
+EOF
+ ;;
+ fitend)
+ cat << EOF >> ${1}
+};
+EOF
+ ;;
+ esac
+}
+
+#
+# Emit the fitImage ITS kernel section
+#
+# $1 ... .its filename
+# $2 ... Image counter
+# $3 ... Path to kernel image
+# $4 ... Compression type
+fitimage_emit_section_kernel() {
+
+ kernel_csum="sha1"
+
+ ENTRYPOINT=${UBOOT_ENTRYPOINT}
+ if [ -n "${UBOOT_ENTRYSYMBOL}" ]; then
+ ENTRYPOINT=`${HOST_PREFIX}nm ${S}/vmlinux | \
+ awk '$4=="${UBOOT_ENTRYSYMBOL}" {print $2}'`
+ fi
+
+ cat << EOF >> ${1}
+ kernel@${2} {
+ description = "Linux kernel";
+ data = /incbin/("${3}");
+ type = "kernel";
+ arch = "${UBOOT_ARCH}";
+ os = "linux";
+ compression = "${4}";
+ load = <${UBOOT_LOADADDRESS}>;
+ entry = <${ENTRYPOINT}>;
+ hash@1 {
+ algo = "${kernel_csum}";
+ };
+ };
+EOF
+}
+
+#
+# Emit the fitImage ITS DTB section
+#
+# $1 ... .its filename
+# $2 ... Image counter
+# $3 ... Path to DTB image
+fitimage_emit_section_dtb() {
+
+ dtb_csum="sha1"
+
+ cat << EOF >> ${1}
+ fdt@${2} {
+ description = "Flattened Device Tree blob";
+ data = /incbin/("${3}");
+ type = "flat_dt";
+ arch = "${UBOOT_ARCH}";
+ compression = "none";
+ load = <0x90000000>;
+ hash@1 {
+ algo = "${dtb_csum}";
+ };
+ };
+EOF
+}
+
+#
+# Emit the fitImage ITS setup section
+#
+# $1 ... .its filename
+# $2 ... Image counter
+# $3 ... Path to setup image
+fitimage_emit_section_setup() {
+
+ setup_csum="sha1"
+
+ cat << EOF >> ${1}
+ setup@${2} {
+ description = "Linux setup.bin";
+ data = /incbin/("${3}");
+ type = "x86_setup";
+ arch = "${UBOOT_ARCH}";
+ os = "linux";
+ compression = "none";
+ load = <0x00090000>;
+ entry = <0x00090000>;
+ hash@1 {
+ algo = "${setup_csum}";
+ };
+ };
+EOF
+}
+
+#
+# Emit the fitImage ITS ramdisk section
+#
+# $1 ... .its filename
+# $2 ... Image counter
+# $3 ... Path to ramdisk image
+fitimage_emit_section_ramdisk() {
+
+ ramdisk_csum="sha1"
+ ramdisk_ctype="none"
+ ramdisk_loadline=""
+ ramdisk_entryline=""
+
+ if [ -n "${UBOOT_RD_LOADADDRESS}" ]; then
+ ramdisk_loadline="load = <${UBOOT_RD_LOADADDRESS}>;"
+ fi
+ if [ -n "${UBOOT_RD_ENTRYPOINT}" ]; then
+ ramdisk_entryline="entry = <${UBOOT_RD_ENTRYPOINT}>;"
+ fi
+
+ case $3 in
+ *.gz)
+ ramdisk_ctype="gzip"
+ ;;
+ *.bz2)
+ ramdisk_ctype="bzip2"
+ ;;
+ *.lzma)
+ ramdisk_ctype="lzma"
+ ;;
+ *.lzo)
+ ramdisk_ctype="lzo"
+ ;;
+ *.lz4)
+ ramdisk_ctype="lz4"
+ ;;
+ esac
+
+ cat << EOF >> ${1}
+ ramdisk@${2} {
+ description = "${INITRAMFS_IMAGE}";
+ data = /incbin/("${3}");
+ type = "ramdisk";
+ arch = "${UBOOT_ARCH}";
+ os = "linux";
+ compression = "${ramdisk_ctype}";
+ ${ramdisk_loadline}
+ ${ramdisk_entryline}
+ hash@1 {
+ algo = "${ramdisk_csum}";
+ };
+ };
+EOF
+}
+
+#
+# Emit the fitImage ITS configuration section
+#
+# $1 ... .its filename
+# $2 ... Linux kernel ID
+# $3 ... DTB image name
+# $4 ... ramdisk ID
+# $5 ... config ID
+# $6 ... default flag
+fitimage_emit_section_config() {
+
+ conf_csum="sha1"
+ if [ -n "${UBOOT_SIGN_ENABLE}" ] ; then
+ conf_sign_keyname="${UBOOT_SIGN_KEYNAME}"
+ fi
+
+ # Test if we have any DTBs at all
+ conf_desc="Linux kernel"
+ kernel_line="kernel = \"kernel@${2}\";"
+ fdt_line=""
+ ramdisk_line=""
+ setup_line=""
+ default_line=""
+
+ if [ -n "${3}" ]; then
+ conf_desc="${conf_desc}, FDT blob"
+ fdt_line="fdt = \"fdt@${3}\";"
+ fi
+
+ if [ -n "${4}" ]; then
+ conf_desc="${conf_desc}, ramdisk"
+ ramdisk_line="ramdisk = \"ramdisk@${4}\";"
+ fi
+
+ if [ -n "${5}" ]; then
+ conf_desc="${conf_desc}, setup"
+ setup_line="setup = \"setup@${5}\";"
+ fi
+
+ if [ "${6}" = "1" ]; then
+ default_line="default = \"conf@${3}\";"
+ fi
+
+ cat << EOF >> ${1}
+ ${default_line}
+ conf@${3} {
+ description = "${6} ${conf_desc}";
+ ${kernel_line}
+ ${fdt_line}
+ ${ramdisk_line}
+ ${setup_line}
+ hash@1 {
+ algo = "${conf_csum}";
+ };
+EOF
+
+ if [ ! -z "${conf_sign_keyname}" ] ; then
+
+ sign_line="sign-images = \"kernel\""
+
+ if [ -n "${3}" ]; then
+ sign_line="${sign_line}, \"fdt\""
+ fi
+
+ if [ -n "${4}" ]; then
+ sign_line="${sign_line}, \"ramdisk\""
+ fi
+
+ if [ -n "${5}" ]; then
+ sign_line="${sign_line}, \"setup\""
+ fi
+
+ sign_line="${sign_line};"
+
+ cat << EOF >> ${1}
+ signature@1 {
+ algo = "${conf_csum},rsa2048";
+ key-name-hint = "${conf_sign_keyname}";
+ ${sign_line}
+ };
+EOF
+ fi
+
+ cat << EOF >> ${1}
+ };
+EOF
+}
+
+#
+# Assemble fitImage
+#
+# $1 ... .its filename
+# $2 ... fitImage name
+# $3 ... include ramdisk
+fitimage_assemble() {
+ kernelcount=1
+ dtbcount=""
+ DTBS=""
+ ramdiskcount=${3}
+ setupcount=""
+ rm -f ${1} arch/${ARCH}/boot/${2}
+
+ fitimage_emit_fit_header ${1}
+
+ #
+ # Step 1: Prepare a kernel image section.
+ #
+ fitimage_emit_section_maint ${1} imagestart
+
+ uboot_prep_kimage
+ fitimage_emit_section_kernel ${1} "${kernelcount}" linux.bin "${linux_comp}"
+
+ #
+ # Step 2: Prepare a DTB image section
+ #
+ if [ -n "${KERNEL_DEVICETREE}" ]; then
+ dtbcount=1
+ for DTB in ${KERNEL_DEVICETREE}; do
+ if echo ${DTB} | grep -q '/dts/'; then
+ bbwarn "${DTB} contains the full path to the the dts file, but only the dtb name should be used."
+ DTB=`basename ${DTB} | sed 's,\.dts$,.dtb,g'`
+ fi
+ DTB_PATH="arch/${ARCH}/boot/dts/${DTB}"
+ DTB=`basename ${DTB}`
+ if [ ! -e "${DTB_PATH}" ]; then
+ DTB_PATH="arch/${ARCH}/boot/${DTB}"
+ fi
+
+ DTBS="${DTBS} ${DTB}"
+ fitimage_emit_section_dtb ${1} ${DTB} ${DTB_PATH}
+ done
+ fi
+
+ #
+ # Step 3: Prepare a setup section. (For x86)
+ #
+ if [ -e arch/${ARCH}/boot/setup.bin ]; then
+ setupcount=1
+ fitimage_emit_section_setup ${1} "${setupcount}" arch/${ARCH}/boot/setup.bin
+ fi
+
+ #
+ # Step 4: Prepare a ramdisk section.
+ #
+ if [ "x${ramdiskcount}" = "x1" ] ; then
+ # Find and use the first initramfs image archive type we find
+ for img in cpio.lz4 cpio.lzo cpio.lzma cpio.xz cpio.gz ext2.gz cpio; do
+ initramfs_path="${DEPLOY_DIR_IMAGE}/${INITRAMFS_IMAGE_NAME}.${img}"
+ echo "Using $initramfs_path"
+ if [ -e "${initramfs_path}" ]; then
+ fitimage_emit_section_ramdisk ${1} "${ramdiskcount}" "${initramfs_path}"
+ break
+ fi
+ done
+ fi
+
+ fitimage_emit_section_maint ${1} sectend
+
+ # Force the first Kernel and DTB in the default config
+ kernelcount=1
+ if [ -n "${dtbcount}" ]; then
+ dtbcount=1
+ fi
+
+ #
+ # Step 5: Prepare a configurations section
+ #
+ fitimage_emit_section_maint ${1} confstart
+
+ if [ -n "${DTBS}" ]; then
+ i=1
+ for DTB in ${DTBS}; do
+ fitimage_emit_section_config ${1} "${kernelcount}" "${DTB}" "${ramdiskcount}" "${setupcount}" "`expr ${i} = ${dtbcount}`"
+ i=`expr ${i} + 1`
+ done
+ fi
+
+ fitimage_emit_section_maint ${1} sectend
+
+ fitimage_emit_section_maint ${1} fitend
+
+ #
+ # Step 6: Assemble the image
+ #
+ uboot-mkimage \
+ ${@'-D "${UBOOT_MKIMAGE_DTCOPTS}"' if len('${UBOOT_MKIMAGE_DTCOPTS}') else ''} \
+ -f ${1} \
+ arch/${ARCH}/boot/${2}
+
+ #
+ # Step 7: Sign the image and add public key to U-Boot dtb
+ #
+ if [ "x${UBOOT_SIGN_ENABLE}" = "x1" ] ; then
+ uboot-mkimage \
+ ${@'-D "${UBOOT_MKIMAGE_DTCOPTS}"' if len('${UBOOT_MKIMAGE_DTCOPTS}') else ''} \
+ -F -k "${UBOOT_SIGN_KEYDIR}" \
+ -K "${DEPLOY_DIR_IMAGE}/${UBOOT_DTB_BINARY}" \
+ -r arch/${ARCH}/boot/${2}
+ fi
+}
+
+do_assemble_fitimage() {
+ if echo ${KERNEL_IMAGETYPES} | grep -wq "itbImage"; then
+ cd ${B}
+ fitimage_assemble fit-image.its itbImage
+ fi
+}
+
+addtask assemble_fitimage before do_install after do_compile
+
+do_assemble_fitimage_initramfs() {
+ if echo ${KERNEL_IMAGETYPES} | grep -wq "itbImage" && \
+ test -n "${INITRAMFS_IMAGE}" ; then
+ cd ${B}
+ fitimage_assemble fit-image-${INITRAMFS_IMAGE}.its fitImage-${INITRAMFS_IMAGE} 1
+ fi
+}
+
+addtask assemble_fitimage_initramfs before do_deploy after do_install
+
+
+kernel_do_deploy[vardepsexclude] = "DATETIME"
+kernel_do_deploy_append() {
+ # Update deploy directory
+ if echo ${KERNEL_IMAGETYPES} | grep -wq "itbImage"; then
+ cd ${B}
+ echo "Copying fit-image.its source file..."
+ its_base_name="fitImage-its-${PV}-${PR}-${MACHINE}-${DATETIME}"
+ its_symlink_name=fitImage-its-${MACHINE}
+ install -m 0644 fit-image.its ${DEPLOYDIR}/${its_base_name}.its
+ linux_bin_base_name="fitImage-linux.bin-${PV}-${PR}-${MACHINE}-${DATETIME}"
+ linux_bin_symlink_name=fitImage-linux.bin-${MACHINE}
+ install -m 0644 linux.bin ${DEPLOYDIR}/${linux_bin_base_name}.bin
+
+ if [ -n "${INITRAMFS_IMAGE}" ]; then
+ echo "Copying fit-image-${INITRAMFS_IMAGE}.its source file..."
+ its_initramfs_base_name="fitImage-its-${INITRAMFS_IMAGE_NAME}-${PV}-${PR}-${DATETIME}"
+ its_initramfs_symlink_name=fitImage-its-${INITRAMFS_IMAGE_NAME}
+ install -m 0644 fit-image-${INITRAMFS_IMAGE}.its ${DEPLOYDIR}/${its_initramfs_base_name}.its
+ fit_initramfs_base_name="fitImage-${INITRAMFS_IMAGE_NAME}-${PV}-${PR}-${DATETIME}"
+ fit_initramfs_symlink_name=fitImage-${INITRAMFS_IMAGE_NAME}
+ install -m 0644 arch/${ARCH}/boot/fitImage-${INITRAMFS_IMAGE} ${DEPLOYDIR}/${fit_initramfs_base_name}.bin
+ fi
+
+ cd ${DEPLOYDIR}
+ ln -sf ${its_base_name}.its ${its_symlink_name}.its
+ ln -sf ${linux_bin_base_name}.bin ${linux_bin_symlink_name}.bin
+
+ if [ -n "${INITRAMFS_IMAGE}" ]; then
+ ln -sf ${its_initramfs_base_name}.its ${its_initramfs_symlink_name}.its
+ ln -sf ${fit_initramfs_base_name}.bin ${fit_initramfs_symlink_name}.bin
+ fi
+ fi
+}
