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|
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_image_complete')
}
# Options for the device tree compiler passed to mkimage '-D' feature:
UBOOT_MKIMAGE_DTCOPTS ??= ""
#
# 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 \
${@'-D "${UBOOT_MKIMAGE_DTCOPTS}"' if len('${UBOOT_MKIMAGE_DTCOPTS}') else ''} \
-f fit-image.its \
arch/${ARCH}/boot/fitImage
fi
}
addtask assemble_fitimage before do_install after do_compile
kernel_do_deploy[vardepsexclude] = "DATETIME"
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
}
|
