User:Brendlefly62/Rockchip RK3399 Asus Tinker Board 2 S/Build-Install-U-Boot
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As of 5/8/2024, there is no upstream support for the Tinkerboard 2 or 2 S in u-boot sources. So, the from-scratch u-boot part of this project is still a work in progress. This is also true for the older Tinkerboard -- the general approach is described in this article User:Brendlefly62/Rockchip_RK3288_Asus_Tinker_Board_S/Build-Install-U-Boot.
Meanwhile, there is official support for the Tinkerboard and community support for the Tinkerboard 2/2 S in Armbian. It may be possible to employ defconfig and device tree compilation sources available there, to build u-boot from upstream sources. Alternatively, just use the u-boot produced by Armbian's build script "compile.sh" This tool can be used to build just u-boot and is fully configurable as described below. If you need to rebuild u-boot in order to (for example) change the console baud rate, you can do that and more. First configure u-boot using its "menuconfig" --
user $ ./compile.sh uboot-config SHARE_LOG='yes' ARTIFACT_IGNORE_CACHE='yes' BOARD=tinkerboard-2 BRANCH=current BUILD_DESKTOP=no BUILD_MINIMAL=yes RELEASE=jammy [🌿] Applying cmdline param [ 'BUILD_MINIMAL': '(unset)' --> 'yes' early ]
[🌿] Applying cmdline param [ 'ARTIFACT_IGNORE_CACHE': '(unset)' --> 'yes' early ]
[🌿] Applying cmdline param [ 'BUILD_DESKTOP': '(unset)' --> 'no' early ]
[🌿] Applying cmdline param [ 'BRANCH': '(unset)' --> 'current' early ]
[🌿] Applying cmdline param [ 'BOARD': '(unset)' --> 'tinkerboard-2' early ]
[🌿] Applying cmdline param [ 'RELEASE': '(unset)' --> 'jammy' early ]
[🌿] Applying cmdline param [ 'SHARE_LOG': '(unset)' --> 'yes' early ]
[🌱] artifact [ uboot :: uboot() ]
[🚸] This script requires root privileges; Docker is unavailable [ trying to use sudo ]
[sudo] password for joe:
[🌿] Applying cmdline param [ 'PREFER_DOCKER': '(unset)' --> 'no' early ]
[🌿] Applying cmdline param [ 'BUILD_MINIMAL': '(unset)' --> 'yes' early ]
[🌿] Applying cmdline param [ 'ARTIFACT_IGNORE_CACHE': '(unset)' --> 'yes' early ]
[🌿] Applying cmdline param [ 'BUILD_DESKTOP': '(unset)' --> 'no' early ]
[🌱] Skip cmdline param [ 'ARMBIAN_RELAUNCHED': already set to 'yes' early ]
[🌿] Applying cmdline param [ 'BRANCH': '(unset)' --> 'current' early ]
[🌿] Applying cmdline param [ 'BOARD': '(unset)' --> 'tinkerboard-2' early ]
[🌿] Applying cmdline param [ 'SET_OWNER_TO_UID': '(unset)' --> '1000' early ]
[🌿] Applying cmdline param [ 'RELEASE': '(unset)' --> 'jammy' early ]
[🌿] Applying cmdline param [ 'SHARE_LOG': '(unset)' --> 'yes' early ]
[🌱] artifact [ uboot :: uboot() ]
[🌱] Starting single build process [ tinkerboard-2 ]
[🌱] Checking [ basic host setup ]
[🌱] Build host OS release [ jammy ]
[🌱] Build host architecture [ amd64 ]
[🌱] Sourcing board configuration [ /home/joe/armbian/build/config/boards/tinkerboard-2.csc ]
[✅] change-tracking: after sourcing board file config/boards/tinkerboard-2.csc [ BOARDFAMILY='rockchip64' ]
[✅] change-tracking: after sourcing board file config/boards/tinkerboard-2.csc [ BOOTBRANCH='tag:v2021.07' ]
[✅] change-tracking: after sourcing board file config/boards/tinkerboard-2.csc [ BOOTPATCHDIR='legacy/u-boot-tinkerboard2' ]
[✅] change-tracking: after sourcing board file config/boards/tinkerboard-2.csc [ BOOTCONFIG='tinker-2-rk3399_defconfig' ]
[✅] change-tracking: after defaulting LINUXFAMILY to BOARDFAMILY [ LINUXFAMILY='rockchip64' ]
[🌱] Starting main configuration
[🌱] Using REVISION from [ main VERSION file: '24.5.0-trunk' ]
[🌱] Sourcing family configuration [ /home/joe/armbian/build/config/sources/families/rockchip64.conf ]
[🌿] Enabling extension [ rkbin-tools ]
[🌱] Determined BOOT_SOC from BOOTCONFIG [ BOOT_SOC: 'rk3399'; BOOTCONFIG: 'tinker-2-rk3399_defconfig' ]
[✅] change-tracking: after sourcing family config [ KERNEL_MAJOR_MINOR='6.6' ]
[✅] change-tracking: after sourcing family config [ LINUXCONFIG='linux-rockchip64-current' ]
[🌱] Sourcing arch configuration [ arm64.conf ]
[🌱] Extension manager [ processed 7 Extension Methods calls and 11 Extension Method implementations ]
[🌱] rockchip64_common: defaulting SERIALCON [ SERIALCON already set to 'ttyS2', keeping it. ]
[🌱] KERNELPATCHDIR is unset; using 'archive/rockchip64-6.6' [ common_defaults_for_mainline ]
[🌱] mainline-kernel: default to branch / rolling stable version [ Using KERNELBRANCH='branch:linux-6.6.y' for KERNEL_MAJOR_MINOR='6.6' ]
[✅] change-tracking: after late_family_config hooks [ KERNELSOURCE='https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git' ]
[✅] change-tracking: after late_family_config hooks [ KERNELBRANCH='branch:linux-6.6.y' ]
[✅] change-tracking: after late_family_config hooks [ KERNELPATCHDIR='archive/rockchip64-6.6' ]
[✅] change-tracking: after late_family_config hooks [ KERNEL_PATCH_ARCHIVE_BASE='rockchip64' ]
[✅] change-tracking: after late_family_config hooks [ BOOTSOURCE='https://github.com/u-boot/u-boot' ]
[✅] change-tracking: after late_family_config hooks [ BOOTDIR='u-boot' ]
[✅] change-tracking: before handling KERNEL_MAJOR_MINOR in config_post_main [ BOOTSOURCEDIR='u-boot-worktree/u-boot/v2021.07' ]
[✅] change-tracking: before calling extension_finish_config [ LINUXSOURCEDIR='linux-kernel-worktree/6.6__rockchip64__arm64' ]
[🌱] Minimal configuration prepared for build [ prep_conf_main_minimal_ni ]
[🌱] Running artifact build in interactive mode [ log file will be incomplete ]
[✨] Repeat Build Options (early) [ ./compile.sh uboot-config ARTIFACT_IGNORE_CACHE=yes BOARD=tinkerboard-2 BRANCH=current BUILD_DESKTOP=no BUILD_MINIMAL=yes RELEASE=jammy SHARE_LOG=yes ]
[🌱] Checked directory OK for mount options [ /home/joe/armbian/build/.tmp ('main temporary dir') ]
[🌱] Preparing [ host ]
[🌱] Syncing clock [ host ]
[🔨] 12 May 22:31:23 ntpdate[383445]: step time server 209.51.161.238 offset -9.200191 sec
[🌱] Ignoring toolchains [ SKIP_EXTERNAL_TOOLCHAINS: yes ]
[🌱] Producing new & caching [ GIT_INFO_UBOOT ]
[🌱] Fetching SHA1 of 'tag' 'refs/heads/v2021.07^{}' [ https://github.com/u-boot/u-boot ]
[🌱] SHA1 of tag refs/heads/v2021.07^{} [ '' ]
[🌱] Failed to fetch SHA1 of 'tag' 'refs/heads/v2021.07^{}' [ https://github.com/u-boot/u-boot ]
[🌱] Fetching SHA1 of 'tag' 'refs/heads/v2021.07' [ https://github.com/u-boot/u-boot ]
[🌱] SHA1 of tag refs/heads/v2021.07 [ '' ]
[🌱] Failed to fetch SHA1 of 'tag' 'refs/heads/v2021.07' [ https://github.com/u-boot/u-boot ]
[🌱] Fetching SHA1 of 'tag' 'v2021.07^{}' [ https://github.com/u-boot/u-boot ]
[🌱] SHA1 of tag v2021.07^{} [ '840658b093976390e9537724f802281c9c8439f5' ]
[🌱] Getting sources from Git [ rkbin-tools master ]
[🌿] Initializing empty git local copy [ git init: rkbin-tools master ]
[🌿] Fetching updates from remote repository [ rkbin-tools master ]
[🔨] From https://github.com/armbian/rkbin
[🔨] * branch master -> FETCH_HEAD
[🌱] git: Fetch from remote completed, rev-parsing... [ 'rkbin-tools' 'master' 'FETCH_HEAD' ]
[🌱] Installing [ rkbin-tools ]
[🌱] Cloning u-boot from mainline into bare tree [ this might take a somewhat-long time ]
Cloning into '/home/joe/armbian/build/cache/git-bare/u-boot'...
POST git-upload-pack (175 bytes)
POST git-upload-pack (gzip 24452 to 12317 bytes)
remote: Enumerating objects: 996643, done.
remote: Counting objects: 100% (6275/6275), done.
remote: Compressing objects: 100% (4097/4097), done.
remote: Total 996643 (delta 2126), reused 6140 (delta 2099), pack-reused 990368
Receiving objects: 100% (996643/996643), 291.91 MiB | 34.61 MiB/s, done.
Resolving deltas: 100% (789380/789380), done.
[🌱] Getting sources from Git [ u-boot v2021.07 ]
Preparing worktree (checking out 'master')
[🌿] Fetching updates from remote repository [ u-boot v2021.07 ]
POST git-upload-pack (333 bytes)
From https://github.com/u-boot/u-boot
* tag v2021.07 -> FETCH_HEAD
[🌱] git: Fetch from remote completed, rev-parsing... [ 'u-boot' 'v2021.07' 'FETCH_HEAD' ]
[🌿] Using u-boot revision SHA1 [ bf89b7a93992cf313b929cb240f424addc976962 ]
[🌱] Running uboot build in interactive mode [ log file will be incomplete ]
[🌱] Compiling u-boot [ 2021.07 /home/joe/armbian/build/cache/sources/u-boot-worktree/u-boot/v2021.07 ]
[🌱] Compiler version [ aarch64-linux-gnu-gcc '11.4.0' ]
[🌿] {u-boot:1} Checking out to clean sources SHA1 bf89b7a93992cf313b929cb240f424addc976962 [ {u-boot-worktree/u-boot/v2021.07} for BL31=/home/joe/armbian/build/cache/sources/rkbin-tools/rk33/rk3399_bl31_v1.35.elf spl/u-boot-spl.bin u-boot.dtb u-boot.itb ]
[🌱] Python3 version [ 3.10.12 - 'Python 3.10.12' ]
[🌱] pip3 version [ 22.0.2: 'pip 22.0.2 from /usr/lib/python3/dist-packages/pip (python 3.10)' ]
[🌱] Using cached pip packages for Python tools [ f34c3f616841e80aed6efe6a93e040ed3439314113e5f028c99e76c254e166ba ]
[🌱] Calling Python patching script [ for u-boot target ]
Applying 3 patches from 3 files of which 3 patches in regular, sorted files...
-> 1/3: add-board-tinker-board-2(:1) (+763/-0)[5M, 7A] {rk3399-tinker-2.dts, tinker-2-rk3399_defconfig, rk3399-tinker-2-u-boot.dtsi, tinker-2-rk3399.c, tinker-2_rk3399.h, Kconfig, Makefile, fan53555.c, fan53555.h}
-> 2/3: add-trust-ini(:1) (+15/-0)[1A] {trust.ini}
-> 3/3: enable-DT-overlays-support(:1) (+2/-0)[1M] {Kconfig}
Summary: u-boot patching: 3 total patches; 3 applied; 0 with problems
Summary of u-boot patches
╭────────────────────────────┬─────────────────────────────────────┬──────────────────────────────────────────╮
│ Patch / Status │ Diffstat / files │ Author / Subject │
├────────────────────────────┼─────────────────────────────────────┼──────────────────────────────────────────┤
│ add-board-tinker-board-2 │ (+763/-0)[5M, 7A] │ tonymac32: Add board Tinkerboard-2 uboot │
│ │ rk3399-tinker-2.dts, │ with regulator │
│ │ tinker-2-rk3399_defconfig, │ │
│ │ rk3399-tinker-2-u-boot.dtsi, │ │
│ │ tinker-2-rk3399.c, │ │
│ │ tinker-2_rk3399.h, Kconfig, │ │
│ │ Makefile, fan53555.c, fan53555.h │ │
├────────────────────────────┼─────────────────────────────────────┼──────────────────────────────────────────┤
│ add-trust-ini │ (+15/-0)[1A] trust.ini │ zador-blood-stained: Add trust.ini │
├────────────────────────────┼─────────────────────────────────────┼──────────────────────────────────────────┤
│ enable-DT-overlays-support │ (+2/-0)[1M] Kconfig │ zador-blood-stained: Enable DT overlay │
│ │ │ support in u-boot │
╰────────────────────────────┴─────────────────────────────────────┴──────────────────────────────────────────╯
[🌱] {u-boot:1} Preparing u-boot config 'tinker-2-rk3399_defconfig' [ 2021.07 BL31=/home/joe/armbian/build/cache/sources/rkbin-tools/rk33/rk3399_bl31_v1.35.elf spl/u-boot-spl.bin u-boot.dtb u-boot.itb ]
HOSTCC scripts/basic/fixdep
HOSTCC scripts/kconfig/conf.o
YACC scripts/kconfig/zconf.tab.c
LEX scripts/kconfig/zconf.lex.c
HOSTCC scripts/kconfig/zconf.tab.o
HOSTLD scripts/kconfig/conf
#
# configuration written to .config
#
[🌱] {u-boot:1} Updating u-boot config with olddefconfig [ 2021.07 BL31=/home/joe/armbian/build/cache/sources/rkbin-tools/rk33/rk3399_bl31_v1.35.elf spl/u-boot-spl.bin u-boot.dtb u-boot.itb ]
scripts/kconfig/conf --olddefconfig Kconfig
.config:1952:warning: override: reassigning to symbol BOOTDELAY
#
# configuration written to .config
#
[🚸] Configuring u-boot [ UBOOT_CONFIGURE=yes; experimental ]
UPD scripts/kconfig/.mconf-cfg
HOSTCC scripts/kconfig/mconf.o
...
...Then run this command to build u-boot --
user $ ./compile.sh uboot SHARE_LOG='yes' ARTIFACT_IGNORE_CACHE='yes' BOARD=tinkerboard-2 BRANCH=current BUILD_DESKTOP=no BUILD_MINIMAL=yes RELEASE=jammy ... [✨] Repeat Build Options [ ./compile.sh uboot ARTIFACT_IGNORE_CACHE=yes BOARD=tinkerboard-2 BRANCH=current BUILD_DESKTOP=no BUILD_MINIMAL=yes RELEASE=jammy SHARE_LOG=yes ] [🌱] Cleaning up [ please wait for cleanups to finish ] [🌿] ANSI log file built; inspect it by running: [ less -RS output/logs/log-uboot-6449d7f7-7556-4099-b562-7bd379b9b1b5.log.ans ] [🌱] SHARE_LOG=yes, uploading log [ uploading logs ] [🌿] Log uploaded, share URL: [ https://paste.armbian.com/ebitazilav ]
Then examine new output in armbian/build/output. Note in particular the "debs" folder, which contains archived .deb packages. Locate the one that looks like "linux-u-boot-tinkerboard-2-current_2021.07-S8406-P5654-H8c72-Vbfac-Bf5f6-R448a_arm64.deb" and copy it to your development workstation. There, you can examine and/or extract the contents with dpkg-deb -c or dpkg-deb -x, respectively --
user $ dpkg-deb -c debs/linux-u-boot-tinkerboard-2-current_24.5.0-trunk_arm64__2021.07-S8406-P5654-H8c72-Vbfac-Bf5f6-R448a.deb ## examine contents drwx------ root/root 0 2024-03-13 20:32 ./ drwxrwxr-x root/root 0 2024-03-13 20:33 ./usr/ drwxrwxr-x root/root 0 2024-03-13 20:32 ./usr/lib/ drwxrwxr-x root/root 0 2024-03-13 20:33 ./usr/lib/linux-u-boot-current-tinkerboard-2/ -rw-rw-r-- root/root 239616 2024-03-13 20:33 ./usr/lib/linux-u-boot-current-tinkerboard-2/idbloader.img -rw-rw-r-- root/root 1028980 2024-03-13 20:33 ./usr/lib/linux-u-boot-current-tinkerboard-2/u-boot.itb drwxrwxr-x root/root 0 2024-03-13 20:33 ./usr/lib/u-boot/ -rw-rw-r-- root/root 7179 2024-03-13 20:33 ./usr/lib/u-boot/LICENSE -rw-rw-r-- root/root 1697 2024-03-13 20:33 ./usr/lib/u-boot/platform_install.sh -rw-rw-r-- root/root 50062 2024-03-13 20:33 ./usr/lib/u-boot/tinker-2-rk3399_defconfig drwxrwxr-x root/root 0 2024-03-13 20:33 ./usr/share/ drwxrwxr-x root/root 0 2024-03-13 20:33 ./usr/share/doc/ drwxrwxr-x root/root 0 2024-03-13 20:33 ./usr/share/doc/linux-u-boot-tinkerboard-2-current/ -rw-rw-r-- root/root 221 2024-03-13 20:33 ./usr/share/doc/linux-u-boot-tinkerboard-2-current/changelog.gz
Tip
Note that the script provided at
Note that the script provided at
./usr/lib/u-boot/platform_install.sh essentially provides instructions on how to burn the u-boot files ./usr/lib/linux-u-boot-current-tinkerboard-2/u-boot.itb and ./usr/lib/linux-u-boot-current-tinkerboard-2/u-boot.itb to the boot media. Warning
If the device at /mnt/thumb is a vfat fs, it won't support symlinks, so save the information with which to reconstruct them, if they are needed
If the device at /mnt/thumb is a vfat fs, it won't support symlinks, so save the information with which to reconstruct them, if they are needed
Creating boot.scr
Also, it may make debugging easier to modify the boot.cmd boot script to be more informative and use the makeimage tool to compile this to a custom boot.scr
One of the several u-boot boot scenarios is to load boot.scr, which will contain commands for U-Boot to execute. This will be in the /boot partition along with the kernel and device tree binary. To generate a custom version of this file, first create or modify the file boot.cmd. The example below includes a lot of extra stuff to facilitate exploration and debugging, but it can be significantly simplified (e.g. the u-boot command env print -a will give you all the information that all these echo commands produce, and more, but the echo commands produce more readable, formatted output --
CODE boot.cmd
# DO NOT EDIT THIS FILE
#
# Please edit /boot/joetooEnv.txt to set supported parameters
setenv load_addr "0x9000000"
setenv overlay_error "false"
# default values
setenv rootdev "/dev/mmcblk0p1"
setenv verbosity "1"
setenv console "both"
setenv bootlogo "false"
setenv rootfstype "ext4"
#setenv docker_optimizations "on" ### armbian uses this, but I don't want it
setenv earlycon "off"
test -n "${distro_bootpart}" || distro_bootpart=1
echo "Loaded and running boot.scr!"
echo "Boot script loaded from ${devtype} ${devnum}:${distro_bootpart}"
# defaults
if test -z "$bootargs"; then
setenv bootargs root=${rootdev} rootdelay=5
fi
# print some debugging info
echo "-----[ Initial State ]-----------------------------------"
#echo "userEnv..........: "${userEnv}
echo "load_addr........: "${load_addr}
echo "filesize.........: "${filesize}
echo "rootdev..........: "${rootdev}
echo "devtype..........: "${devtype}
echo "devnum...........: "${devnum}
echo "prefix...........: "${prefix}
echo "distro_bootpart..: "${distro_bootpart}
echo "verbosity........: "${verbosity}
echo "console..........: "${console}
echo "consoleargs......: "${consoleargs}
echo "consolebaud......: "${consolebaud}
echo "logo.............: "${logo}
echo "bootlogo.........: "${bootlogo}
echo "rootfstype.......: "${rootfstype}
echo "arch.............: "${arch}
echo "earlycon.........: "${earlycon}
echo "overlays.........: "${overlays}
echo "overlay_dir......: "${overlay_dir}
echo "overlay_prefix...: "${overlay_prefix}
echo "dtb_prefix.......: "${dtb_prefix}
echo "user_overlays....: "${user_overlays}
echo "fdtfile..........: "${fdtfile}
echo "fdt_addr_r.......: "${fdt_addr_r}
echo "imagefile........: "${imagefile}
echo "kernel_addr_r....: "${kernel_addr_r}
echo "initrdfile.......: "${initrdfile}
echo "ramdisk_addr_r...: "${ramdisk_addr_r}
echo "partuuid.........: "${partuuid}
echo "usbstoragequirks.: "${usbstoragequirks}
echo "extraargs........: "${extraargs}
echo "extraboardargs...: "${extraboardargs}
echo "bootargs.........: "${bootargs}
echo "--------------------------------------------------------"
# Override/overwrite defaults per user's environment selections
echo "Ok - I am about to try reading joetooEnv.txt..."
if test -e ${devtype} ${devnum} ${prefix}joetooEnv.txt; then
load ${devtype} ${devnum} ${load_addr} ${prefix}joetooEnv.txt
env import -t ${load_addr} ${filesize}
else
echo "Did not find or load joetooEnv.txt"
fi
# Manage console settings
setenv consoleargs ""
if test "${logo}" = "disabled"; then setenv logo "logo.nologo"; fi
if test "${console}" = "display" || test "${console}" = "both"; then setenv consoleargs "console=tty1"; fi
#if test "${console}" = "serial" || test "${console}" = "both"; then setenv consoleargs "console=ttyS2,${consolebaud}n8 ${consoleargs}"; fi
if test "${console}" = "serial" || test "${console}" = "both"; then setenv consoleargs "${consoleargs} console=ttyS2,${consolebaud}n8"; fi
if test "${earlycon}" = "on"; then setenv consoleargs "earlycon ${consoleargs}"; fi
if test "${bootlogo}" = "true"; then
setenv consoleargs "splash plymouth.ignore-serial-consoles ${consoleargs}"
else
setenv consoleargs "splash=verbose ${consoleargs}"
fi
# get PARTUUID of first partition on SD/eMMC the boot script was loaded from
if test "${devtype}" = "mmc"; then part uuid mmc ${devnum}:1 partuuid; fi
# update bootargs
#setenv bootargs "root=${rootdev} rootwait rootfstype=${rootfstype} ${consoleargs} consoleblank=0 loglevel=${verbosity} ubootpart=${partuuid} usb-storage.quirks=${usbstoragequirks} ${extraargs} ${extraboardargs}"
#setenv bootargs "root=${rootdev} rootwait rootfstype=${rootfstype} ${consoleargs} consoleblank=0 loglevel=${verbosity} usb-storage.quirks=${usbstoragequirks} ${extraargs} ${extraboardargs}"
#setenv bootargs "root=${rootdev} rootdelay=5 rootwait rootfstype=${rootfstype} ${consoleargs} consoleblank=0 loglevel=${verbosity} ubootpart=${partuuid} usb-storage.quirks=${usbstoragequirks} ${extraargs} ${extraboardargs}"
setenv bootargs "root=${rootdev} rootdelay=5 rootwait rootfstype=${rootfstype} ${consoleargs} consoleblank=0 loglevel=${verbosity} usb-storage.quirks=${usbstoragequirks} ${extraargs} ${extraboardargs}"
echo "-----[ Potentially Updated State ]-----------------------"
#echo "userEnv..........: "${userEnv}
echo "load_addr........: "${load_addr}
echo "filesize.........: "${filesize}
echo "rootdev..........: "${rootdev}
echo "devtype..........: "${devtype}
echo "devnum...........: "${devnum}
echo "prefix...........: "${prefix}
echo "distro_bootpart..: "${distro_bootpart}
echo "verbosity........: "${verbosity}
echo "console..........: "${console}
echo "consoleargs......: "${consoleargs}
echo "consolebaud......: "${consolebaud}
echo "logo.............: "${logo}
echo "bootlogo.........: "${bootlogo}
echo "rootfstype.......: "${rootfstype}
echo "arch.............: "${arch}
echo "earlycon.........: "${earlycon}
echo "overlays.........: "${overlays}
echo "overlay_dir......: "${overlay_dir}
echo "overlay_prefix...: "${overlay_prefix}
echo "dtb_prefix.......: "${dtb_prefix}
echo "user_overlays....: "${user_overlays}
echo "fdtfile..........: "${fdtfile}
echo "fdt_addr_r.......: "${fdt_addr_r}
echo "imagefile........: "${imagefile}
echo "kernel_addr_r....: "${kernel_addr_r}
echo "initrdfile.......: "${initrdfile}
echo "ramdisk_addr_r...: "${ramdisk_addr_r}
echo "partuuid.........: "${partuuid}
echo "usbstoragequirks.: "${usbstoragequirks}
echo "extraargs........: "${extraargs}
echo "extraboardargs...: "${extraboardargs}
echo "bootargs.........: "${bootargs}
echo "-----[ now env print -a ]---------------------------------"
env print -a
# Load device tree file and kernel (to do: initramfs option)
# device tree - note that it finds the file in the "dtb" directory
echo "Loading device tree from ${devtype} ${devnum}:${distro_bootpart}..."
load ${devtype} ${devnum}:${distro_bootpart} ${fdt_addr_r} ${prefix}dtb/${dtb_prefix}/${fdtfile}
if test ${initrdfile} = ""; then
echo "Null initrd [${initrdfile}]; not loading one..."
setenv ramdisk_addr_r "-"
echo "ramdisk_addr_r...: "${ramdisk_addr_r}
else
echo "Loading initrd from ${devtype} ${devnum}:${distro_bootpart}..."
load ${devtype} ${devnum}:${distro_bootpart} ${ramdisk_addr_r} ${prefix}${initrdfile}
fi
echo "Loading kernel from ${devtype} ${devnum}:${distro_bootpart}..."
load ${devtype} ${devnum}:${distro_bootpart} ${kernel_addr_r} ${prefix}${imagefile}
# Load overlays
fdt addr ${fdt_addr_r}
fdt resize 65536
for overlay_file in ${overlays}; do
if load ${devtype} ${devnum} ${load_addr} ${prefix}dtb/${overlay_dir}/${overlay_prefix}-${overlay_file}.dtbo; then
echo "Applying kernel provided DT overlay ${overlay_prefix}-${overlay_file}.dtbo"
fdt apply ${load_addr} || setenv overlay_error "true"
fi
done
for overlay_file in ${user_overlays}; do
if load ${devtype} ${devnum} ${load_addr} ${prefix}overlay-user/${overlay_file}.dtbo; then
echo "Applying user provided DT overlay ${overlay_file}.dtbo"
fdt apply ${load_addr} || setenv overlay_error "true"
fi
done
if test "${overlay_error}" = "true"; then
echo "Error applying DT overlays, restoring original DT"
load ${devtype} ${devnum} ${fdt_addr_r} ${prefix}dtb/${fdtfile}
else
echo "No overlay_error. Now trying to load fixup scripts..."
if test -e ${devtype} ${devnum} ${prefix}dtb/${overlay_dir}/${overlay_prefix}-fixup.scr; then
load ${devtype} ${devnum} ${load_addr} ${prefix}dtb/${overlay_dir}/${overlay_prefix}-fixup.scr
echo "Applying kernel provided DT fixup script (${overlay_prefix}-fixup.scr)"
source ${load_addr}
else
echo "could not find to load fixup script ${prefix}dtb/${overlay_dir}/${overlay_prefix}-fixup.scr. Skipping..."
fi
if test -e ${devtype} ${devnum} ${prefix}fixup.scr; then
load ${devtype} ${devnum} ${load_addr} ${prefix}fixup.scr
echo "Applying user provided fixup script (fixup.scr)"
source ${load_addr}
else
echo "could not find to load fixup script ${prefix}fixup.scr. Skipping..."
fi
fi
# Boot!
echo "Booting with arguments: ${bootargs}"
echo
echo "imagefile: ${imagefile}"
echo
if test ${imagefile} = "Image"; then
echo "booting uncompressed kernel image [${imagefile}] ..."
booti ${kernel_addr_r} ${ramdisk_addr_r} ${fdt_addr_r}
else
if test ${imagefile} = "zImage"; then
echo "booting compressed kernel image [${imagefile}] ..."
bootz ${kernel_addr_r} ${ramdisk_addr_r} ${fdt_addr_r}
else
echo "invalid kernel imagefile name specified [${imagefile}]. Unable to boot..."
fi
fi
# Recompile instruction
#
# Cross-compiling:
# cd to u-boot directory holding boot.cmd and run
# (yes) mkimage -C none -A arm64 -T script -d boot.cmd boot.scr
# (no) mkimage -C none -A arm -T script -d boot.cmd boot.scr
# then copy boot.scr, boot.cmd, and joetooEnv.txt to the /boot partition
# of your target system eMMC or microSD card
#
# If modifying and existing system (from said system)
# (yes) mkimage -C none -A arm64 -T script -d /boot/boot.cmd /boot/boot.scr
# (no) mkimage -C none -A arm -T script -d /boot/boot.cmd /boot/boot.scr
CODE joetooEnv.txt
verbosity=6
arch=arm64
#console=both
#console=display
console=serial
earlycon=on
consolebaud=1500000
bootlogo=true
overlay_dir=overlays
overlay_prefix=rockchip
dtb_prefix=rockchip
overlays=
fdtfile=rk3399-tinker-2.dtb
imagefile=Image
initrdfile=uInitrd
#initrdfile=
rootdev=/dev/mmcblk1p1
#rootdev=UUID=604e047f-f018-4b90-84b0-72f1be501a8a
#rootdev=PARTUUID=8adf86e2-01
rootfstype=ext4
#extraargs=coherent_pool=2M init=/sbin/init selinux=0 rw debug
#extraargs=coherent_pool=2M selinux=0 rw debug
extraargs=coherent_pool=2M init=/usr/bin/init selinux=0 net.ifnames=0 debug
usbstoragequirks=0x2537:0x1066:u,0x2537:0x1068:u
Important
Be sure to change
Be sure to change
rootdev= to point to your actual root partition!
This can by done by PARTUUID= as in this example, more portably than by path to block device, like "/dev/mmcblk0p1" or by LABEL=-- but either way is valid. Note however, that boot.cmd, compiled to boot.scr must pass the associated parameter on the kernel command line, so that it can be referenced in userspace. For the author, trial and errorThen, compile it to boot.scr:
root #mkimage -C none -A arm64 -T script -d boot.cmd boot.scr Tip
*
*
mkimage can be used from either the bin directory in your U-Boot build directory or from dev-embedded/u-boot-tools
- Create a Makefile or a shell script so you don't have to look up the command above next time you need to edit
If the /boot partition is on microSD, it should work without additional steps.