mirror of
https://github.com/armbian/build
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3e07d3ed7c
Device tree files and overlay files are interconnected
and always located in the same place, separated by
the overlay subdirectory.
${fdtdir}/${fdtfile}
${fdtdir}/overlay/${overlay_prefix}-${overlay_file}.dtbo
By default, we are trying to download a dtb file from
the /boot/dtb folder, which is a link to the real folder.
Depending on the time and type of build, this link may
point directly to the target folder or to a subdirectory,
i.e. possible path options:
/boot/dtb/overlay
/boot/dtb/allwinner/overlay
In the file armbianEnv.txt we can also see:
fdtfile=sun8i-*.dtb
or
fdtfile=allwinner/sun8i-*.dtb
Thus, when the user has frozen the kernel and updated
the BSP package, or vice versa, updated only the kernel,
the following options are possible in the paths after
their concatenation in the script:
/boot/dtb/sun8i-*.dtb
/boot/dtb/allwinner/sun8i-*.dtb
/boot/dtb/allwinner/allwinner/sun8i-*.dtb
Define and remember default path variables.
Provide the user with the ability to specify the path
to the target folder as:
fdtdir=/path/to/dir
Check the existence of the dtb file in all reasonable
paths and set the path to it.
If not found, download the default file from the default path.
Signed-off-by: The-going <48602507+The-going@users.noreply.github.com>
142 lines
5.2 KiB
Batchfile
142 lines
5.2 KiB
Batchfile
# DO NOT EDIT THIS FILE
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#
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# Please edit /boot/armbianEnv.txt to set supported parameters
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#
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setenv load_addr "0x45000000"
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setenv overlay_error "false"
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# default values
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setenv verbosity "1"
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setenv console "both"
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setenv disp_mem_reserves "off"
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setenv disp_mode "1920x1080p60"
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setenv rootfstype "ext4"
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setenv docker_optimizations "on"
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setenv bootlogo "false"
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setenv devnum "0"
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setenv rootdev "/dev/mmcblk${devnum}p1"
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setenv earlycon "off"
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# Remember the default u-boot fdtfile
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setenv deffdt_file ${fdtfile}
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# Remember the default u-boot fdtdir
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setenv deffdt_dir "${prefix}dtb"
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if test "$fdtdir" = ""; then setenv fdtdir "${deffdt_dir}";fi
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setenv vendor "allwinner"
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# Print boot source
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itest.b *0x28 == 0x00 && echo "U-boot loaded from SD"
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itest.b *0x28 == 0x01 && echo "U-boot loaded from NAND"
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itest.b *0x28 == 0x02 && echo "U-boot loaded from eMMC or secondary SD"
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itest.b *0x28 == 0x03 && echo "U-boot loaded from SPI"
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# get PARTUUID of first partition on SD/eMMC it was loaded from
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# mmc 0 is always mapped to device u-boot (2016.09+) was loaded from
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if test "${devtype}" = "mmc"; then
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part uuid mmc ${devnum}:1 partuuid;
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setenv devnum ${mmc_bootdev}
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setenv rootdev "/dev/mmcblk${mmc_bootdev}p1"
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fi
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if test -e ${devtype} ${devnum} ${prefix}armbianEnv.txt; then
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load ${devtype} ${devnum} ${load_addr} ${prefix}armbianEnv.txt
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env import -t ${load_addr} ${filesize}
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fi
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# In this shell, we can only check the existence of the file.
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# Make a check of reasonable ways to find the dtb file.
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# Set the true value of the paths.
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if test -e ${devtype} ${devnum} "${fdtdir}/${fdtfile}"; then
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:
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else
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echo "File ${fdtdir}/${fdtfile} does not exists"
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if test -e ${devtype} ${devnum} "${deffdt_dir}/${vendor}/${fdtfile}"; then
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setenv fdtdir "${deffdt_dir}/${vendor}"
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else
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echo "File ${deffdt_dir}/${vendor}/${fdtfile} does not exists"
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if test -e ${devtype} ${devnum} "${deffdt_dir}/${fdtfile}"; then
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setenv fdtdir "${deffdt_dir}"
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else
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echo "File ${deffdt_dir}/${fdtfile} does not exists"
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if test -e ${devtype} ${devnum} "${deffdt_dir}/${vendor}/${deffdt_file}"; then
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setenv fdtdir "${deffdt_dir}/${vendor}"
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setenv fdtfile "${deffdt_file}"
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else
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echo "File ${deffdt_dir}/${vendor}/${deffdt_file} does not exists"
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if test -e ${devtype} ${devnum} "${deffdt_dir}/${deffdt_file}"; then
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setenv fdtdir "${deffdt_dir}"
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setenv fdtfile "${deffdt_file}"
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else
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echo "File ${deffdt_dir}/${deffdt_file} does not exists"
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fi
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fi
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fi
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fi
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fi
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if test "${console}" = "display"; then setenv consoleargs "console=tty1"; fi
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if test "${console}" = "serial"; then setenv consoleargs "console=ttyS0,115200"; fi
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if test "${console}" = "both"; then setenv consoleargs "console=ttyS0,115200 console=tty1"; fi
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if test "${earlycon}" = "on"; then setenv consoleargs "earlycon ${consoleargs}"; fi
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if test "${bootlogo}" = "true"; then
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setenv consoleargs "splash plymouth.ignore-serial-consoles ${consoleargs}"
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else
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setenv consoleargs "splash=verbose ${consoleargs}"
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fi
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setenv bootargs "root=${rootdev} rootwait rootfstype=${rootfstype} ${consoleargs} hdmi.audio=EDID:0 disp.screen0_output_mode=${disp_mode} consoleblank=0 loglevel=${verbosity} ubootpart=${partuuid} ubootsource=${devtype} usb-storage.quirks=${usbstoragequirks} ${extraargs} ${extraboardargs}"
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if test "${disp_mem_reserves}" = "off"; then
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setenv bootargs "${bootargs} sunxi_ve_mem_reserve=0 sunxi_g2d_mem_reserve=0 sunxi_fb_mem_reserve=16"
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fi
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if test "${docker_optimizations}" = "on"; then setenv bootargs "${bootargs} cgroup_enable=memory"; fi
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load ${devtype} ${devnum} ${ramdisk_addr_r} ${prefix}uInitrd
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load ${devtype} ${devnum} ${kernel_addr_r} ${prefix}zImage
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if test -e ${devtype} ${devnum} "${prefix}.next"; then
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echo "Found mainline kernel configuration"
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if load ${devtype} ${devnum} ${fdt_addr_r} ${fdtdir}/${fdtfile}; then
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echo "Load fdt: ${fdtdir}/${fdtfile}"
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fi
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fdt addr ${fdt_addr_r}
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fdt resize 65536
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for overlay_file in ${overlays}; do
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if load ${devtype} ${devnum} ${load_addr} ${fdtdir}/overlay/${overlay_prefix}-${overlay_file}.dtbo; then
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echo "Applying kernel provided DT overlay ${overlay_prefix}-${overlay_file}.dtbo"
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fdt apply ${load_addr} || setenv overlay_error "true"
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fi
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done
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for overlay_file in ${user_overlays}; do
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if load ${devtype} ${devnum} ${load_addr} ${prefix}overlay-user/${overlay_file}.dtbo; then
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echo "Applying user provided DT overlay ${overlay_file}.dtbo"
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fdt apply ${load_addr} || setenv overlay_error "true"
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fi
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done
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if test "${overlay_error}" = "true"; then
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echo "Error applying DT overlays, restoring original DT"
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load ${devtype} ${devnum} ${fdt_addr_r} ${fdtdir}/${fdtfile}
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else
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if load ${devtype} ${devnum} ${load_addr} ${fdtdir}/overlay/${overlay_prefix}-fixup.scr; then
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echo "Applying kernel provided DT fixup script (${overlay_prefix}-fixup.scr)"
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source ${load_addr}
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fi
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if test -e ${devtype} ${devnum} ${prefix}fixup.scr; then
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load ${devtype} ${devnum} ${load_addr} ${prefix}fixup.scr
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echo "Applying user provided fixup script (fixup.scr)"
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source ${load_addr}
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fi
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fi
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bootz ${kernel_addr_r} ${ramdisk_addr_r} ${fdt_addr_r}
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else
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echo "Found legacy kernel configuration"
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load ${devtype} ${devnum} ${fdt_addr_r} ${prefix}script.bin
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bootz ${kernel_addr_r} ${ramdisk_addr_r}
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fi
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# Recompile with:
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# mkimage -C none -A arm -T script -d /boot/boot.cmd /boot/boot.scr
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