|
|
#
|
|
|
# Build and Setup U-Boot
|
|
|
#
|
|
|
|
|
|
# Load utility functions
|
|
|
. ./functions.sh
|
|
|
|
|
|
# Fetch and build U-Boot bootloader
|
|
|
if [ "$ENABLE_UBOOT" = true ] ; then
|
|
|
# Install c/c++ build environment inside the chroot
|
|
|
chroot_install_cc
|
|
|
|
|
|
# Copy existing U-Boot sources into chroot directory
|
|
|
if [ -n "$UBOOTSRC_DIR" ] && [ -d "$UBOOTSRC_DIR" ] ; then
|
|
|
# Copy local U-Boot sources
|
|
|
cp -r "${UBOOTSRC_DIR}" "${R}/tmp"
|
|
|
else
|
|
|
# Create temporary directory for U-Boot sources
|
|
|
temp_dir=$(as_nobody mktemp -d)
|
|
|
|
|
|
# Fetch U-Boot sources
|
|
|
as_nobody git -C "${temp_dir}" clone "${UBOOT_URL}"
|
|
|
|
|
|
# Copy downloaded U-Boot sources
|
|
|
mv "${temp_dir}/u-boot" "${R}/tmp/"
|
|
|
|
|
|
# Set permissions of the U-Boot sources
|
|
|
chown -R root:root "${R}/tmp/u-boot"
|
|
|
|
|
|
# Remove temporary directory for U-Boot sources
|
|
|
rm -fr "${temp_dir}"
|
|
|
fi
|
|
|
|
|
|
# Build and install U-Boot inside chroot
|
|
|
chroot_exec make -j"${KERNEL_THREADS}" -C /tmp/u-boot/ "${UBOOT_CONFIG}" all
|
|
|
|
|
|
# Copy compiled bootloader binary and set config.txt to load it
|
|
|
install_exec "${R}/tmp/u-boot/tools/mkimage" "${R}/usr/sbin/mkimage"
|
|
|
install_readonly "${R}/tmp/u-boot/u-boot.bin" "${BOOT_DIR}/u-boot.bin"
|
|
|
printf "\n# boot u-boot kernel\nkernel=u-boot.bin\n" >> "${BOOT_DIR}/config.txt"
|
|
|
|
|
|
# Install and setup U-Boot command file
|
|
|
install_readonly files/boot/uboot.mkimage "${BOOT_DIR}/uboot.mkimage"
|
|
|
printf "# Set the kernel boot command line\nsetenv bootargs \"earlyprintk ${CMDLINE}\"\n\n$(cat "${BOOT_DIR}"/uboot.mkimage)" > "${BOOT_DIR}/uboot.mkimage"
|
|
|
|
|
|
if [ "$ENABLE_INITRAMFS" = true ] ; then
|
|
|
# Convert generated initramfs for U-Boot using mkimage
|
|
|
chroot_exec /usr/sbin/mkimage -A "${KERNEL_ARCH}" -T ramdisk -C none -n "initramfs-${KERNEL_VERSION}" -d "/boot/firmware/initramfs-${KERNEL_VERSION}" "/boot/firmware/initramfs-${KERNEL_VERSION}.uboot"
|
|
|
|
|
|
# Remove original initramfs file
|
|
|
rm -f "${BOOT_DIR}/initramfs-${KERNEL_VERSION}"
|
|
|
|
|
|
# Configure U-Boot to load generated initramfs
|
|
|
printf "# Set initramfs file\nsetenv initramfs initramfs-${KERNEL_VERSION}.uboot\n\n$(cat "${BOOT_DIR}"/uboot.mkimage)" > "${BOOT_DIR}/uboot.mkimage"
|
|
|
printf "\nbootz \${kernel_addr_r} \${ramdisk_addr_r} \${fdt_addr_r}" >> "${BOOT_DIR}/uboot.mkimage"
|
|
|
else # ENABLE_INITRAMFS=false
|
|
|
# Remove initramfs from U-Boot mkfile
|
|
|
sed -i '/.*initramfs.*/d' "${BOOT_DIR}/uboot.mkimage"
|
|
|
|
|
|
if [ "$BUILD_KERNEL" = false ] ; then
|
|
|
# Remove dtbfile from U-Boot mkfile
|
|
|
sed -i '/.*dtbfile.*/d' "${BOOT_DIR}/uboot.mkimage"
|
|
|
printf "\nbootz \${kernel_addr_r}" >> "${BOOT_DIR}/uboot.mkimage"
|
|
|
else
|
|
|
printf "\nbootz \${kernel_addr_r} - \${fdt_addr_r}" >> "${BOOT_DIR}/uboot.mkimage"
|
|
|
fi
|
|
|
fi
|
|
|
|
|
|
if [ "$SET_ARCH" = 64 ] ; then
|
|
|
echo "Setting up config.txt to boot 64bit uboot"
|
|
|
{
|
|
|
printf "\n# 64bit-mode"
|
|
|
printf "\n# arm_control=0x200 is deprecated https://www.raspberrypi.org/documentation/configuration/config-txt/misc.md"
|
|
|
printf "\narm_64bit=1"
|
|
|
} >> "${BOOT_DIR}/config.txt"
|
|
|
|
|
|
#in 64bit uboot booti is used instead of bootz [like in KERNEL_BIN_IMAGE=zImage (armv7)|| Image(armv8)]
|
|
|
sed -i "s|bootz|booti|g" "${BOOT_DIR}/uboot.mkimage"
|
|
|
fi
|
|
|
|
|
|
# instead of sd, boot from usb device
|
|
|
if [ "$ENABLE_USBBOOT" = true ] ; then
|
|
|
sed -i "s|mmc|usb|g" "${BOOT_DIR}/uboot.mkimage"
|
|
|
fi
|
|
|
|
|
|
# Set mkfile to use the correct dtb file
|
|
|
sed -i "s|bcm2709-rpi-2-b.dtb|${DTB_FILE}|" "${BOOT_DIR}/uboot.mkimage"
|
|
|
|
|
|
# Set mkfile to use the correct mach id
|
|
|
if [ "$ENABLE_QEMU" = true ] ; then
|
|
|
sed -i "s/^\(setenv machid \).*/\10x000008e0/" "${BOOT_DIR}/uboot.mkimage"
|
|
|
fi
|
|
|
|
|
|
# Set mkfile to use kernel image
|
|
|
sed -i "s|kernel7.img|${KERNEL_IMAGE}|" "${BOOT_DIR}/uboot.mkimage"
|
|
|
|
|
|
# Remove all leading blank lines
|
|
|
sed -i "/./,\$!d" "${BOOT_DIR}/uboot.mkimage"
|
|
|
|
|
|
# Generate U-Boot bootloader image
|
|
|
chroot_exec /usr/sbin/mkimage -A "${KERNEL_ARCH}" -O linux -T script -C none -a 0x00000000 -e 0x00000000 -n "RPi${RPI_MODEL}" -d /boot/firmware/uboot.mkimage /boot/firmware/boot.scr
|
|
|
|
|
|
# Remove U-Boot sources
|
|
|
rm -fr "${R}/tmp/u-boot"
|
|
|
fi
|
|
|
|
