Squashed 'yocto-poky/' content from commit ea562de
git-subtree-dir: yocto-poky
git-subtree-split: ea562de57590c966cd5a75fda8defecd397e6436
diff --git a/meta/classes/kernel-fitimage.bbclass b/meta/classes/kernel-fitimage.bbclass
new file mode 100644
index 0000000..2a56a54
--- /dev/null
+++ b/meta/classes/kernel-fitimage.bbclass
@@ -0,0 +1,234 @@
+inherit kernel-uboot
+
+python __anonymous () {
+ kerneltype = d.getVar('KERNEL_IMAGETYPE', True)
+ if kerneltype == 'fitImage':
+ depends = d.getVar("DEPENDS", True)
+ depends = "%s u-boot-mkimage-native dtc-native" % depends
+ d.setVar("DEPENDS", depends)
+
+ # 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 .
+ d.setVar("KERNEL_IMAGETYPE_FOR_MAKE", "zImage")
+
+ image = d.getVar('INITRAMFS_IMAGE', True)
+ if image:
+ d.appendVarFlag('do_assemble_fitimage', 'depends', ' ${INITRAMFS_IMAGE}:do_rootfs')
+}
+
+#
+# Emit the fitImage ITS header
+#
+fitimage_emit_fit_header() {
+ cat << EOF >> fit-image.its
+/dts-v1/;
+
+/ {
+ description = "U-Boot fitImage for ${DISTRO_NAME}/${PV}/${MACHINE}";
+ #address-cells = <1>;
+EOF
+}
+
+#
+# Emit the fitImage section bits
+#
+# $1 ... Section bit type: imagestart - image section start
+# confstart - configuration section start
+# sectend - section end
+# fitend - fitimage end
+#
+fitimage_emit_section_maint() {
+ case $1 in
+ imagestart)
+ cat << EOF >> fit-image.its
+
+ images {
+EOF
+ ;;
+ confstart)
+ cat << EOF >> fit-image.its
+
+ configurations {
+EOF
+ ;;
+ sectend)
+ cat << EOF >> fit-image.its
+ };
+EOF
+ ;;
+ fitend)
+ cat << EOF >> fit-image.its
+};
+EOF
+ ;;
+ esac
+}
+
+#
+# Emit the fitImage ITS kernel section
+#
+# $1 ... Image counter
+# $2 ... Path to kernel image
+# $3 ... Compression type
+fitimage_emit_section_kernel() {
+
+ kernel_csum="sha1"
+
+ ENTRYPOINT=${UBOOT_ENTRYPOINT}
+ if test -n "${UBOOT_ENTRYSYMBOL}"; then
+ ENTRYPOINT=`${HOST_PREFIX}nm ${S}/vmlinux | \
+ awk '$3=="${UBOOT_ENTRYSYMBOL}" {print $1}'`
+ fi
+
+ cat << EOF >> fit-image.its
+ kernel@${1} {
+ description = "Linux kernel";
+ data = /incbin/("${2}");
+ type = "kernel";
+ arch = "${UBOOT_ARCH}";
+ os = "linux";
+ compression = "${3}";
+ load = <${UBOOT_LOADADDRESS}>;
+ entry = <${ENTRYPOINT}>;
+ hash@1 {
+ algo = "${kernel_csum}";
+ };
+ };
+EOF
+}
+
+#
+# Emit the fitImage ITS DTB section
+#
+# $1 ... Image counter
+# $2 ... Path to DTB image
+fitimage_emit_section_dtb() {
+
+ dtb_csum="sha1"
+
+ cat << EOF >> fit-image.its
+ fdt@${1} {
+ description = "Flattened Device Tree blob";
+ data = /incbin/("${2}");
+ type = "flat_dt";
+ arch = "${UBOOT_ARCH}";
+ compression = "none";
+ hash@1 {
+ algo = "${dtb_csum}";
+ };
+ };
+EOF
+}
+
+#
+# Emit the fitImage ITS configuration section
+#
+# $1 ... Linux kernel ID
+# $2 ... DTB image ID
+fitimage_emit_section_config() {
+
+ conf_csum="sha1"
+
+ # Test if we have any DTBs at all
+ if [ -z "${2}" ] ; then
+ conf_desc="Boot Linux kernel"
+ fdt_line=""
+ else
+ conf_desc="Boot Linux kernel with FDT blob"
+ fdt_line="fdt = \"fdt@${2}\";"
+ fi
+ kernel_line="kernel = \"kernel@${1}\";"
+
+ cat << EOF >> fit-image.its
+ default = "conf@1";
+ conf@1 {
+ description = "${conf_desc}";
+ ${kernel_line}
+ ${fdt_line}
+ hash@1 {
+ algo = "${conf_csum}";
+ };
+ };
+EOF
+}
+
+do_assemble_fitimage() {
+ if test "x${KERNEL_IMAGETYPE}" = "xfitImage" ; then
+ kernelcount=1
+ dtbcount=""
+ rm -f fit-image.its
+
+ fitimage_emit_fit_header
+
+ #
+ # Step 1: Prepare a kernel image section.
+ #
+ fitimage_emit_section_maint imagestart
+
+ uboot_prep_kimage
+ fitimage_emit_section_kernel "${kernelcount}" linux.bin "${linux_comp}"
+
+ #
+ # Step 2: Prepare a DTB image section
+ #
+ if test -n "${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}"
+ if [ ! -e "${DTB_PATH}" ]; then
+ DTB_PATH="arch/${ARCH}/boot/${DTB}"
+ fi
+
+ fitimage_emit_section_dtb ${dtbcount} ${DTB_PATH}
+ dtbcount=`expr ${dtbcount} + 1`
+ done
+ fi
+
+ fitimage_emit_section_maint sectend
+
+ # Force the first Kernel and DTB in the default config
+ kernelcount=1
+ dtbcount=1
+
+ #
+ # Step 3: Prepare a configurations section
+ #
+ fitimage_emit_section_maint confstart
+
+ fitimage_emit_section_config ${kernelcount} ${dtbcount}
+
+ fitimage_emit_section_maint sectend
+
+ fitimage_emit_section_maint fitend
+
+ #
+ # Step 4: Assemble the image
+ #
+ uboot-mkimage -f fit-image.its arch/${ARCH}/boot/fitImage
+ fi
+}
+
+addtask assemble_fitimage before do_install after do_compile
+
+kernel_do_deploy_append() {
+ # Update deploy directory
+ if test "x${KERNEL_IMAGETYPE}" = "xfitImage" ; then
+ cd ${B}
+ echo "Copying fit-image.its source file..."
+ its_base_name="${KERNEL_IMAGETYPE}-its-${PV}-${PR}-${MACHINE}-${DATETIME}"
+ its_symlink_name=${KERNEL_IMAGETYPE}-its-${MACHINE}
+ install -m 0644 fit-image.its ${DEPLOYDIR}/${its_base_name}.its
+ linux_bin_base_name="${KERNEL_IMAGETYPE}-linux.bin-${PV}-${PR}-${MACHINE}-${DATETIME}"
+ linux_bin_symlink_name=${KERNEL_IMAGETYPE}-linux.bin-${MACHINE}
+ install -m 0644 linux.bin ${DEPLOYDIR}/${linux_bin_base_name}.bin
+
+ cd ${DEPLOYDIR}
+ ln -sf ${its_base_name}.its ${its_symlink_name}.its
+ ln -sf ${linux_bin_base_name}.bin ${linux_bin_symlink_name}.bin
+ fi
+}