U-Boot integration [stm32mpu157 dk2]

zhalat · July 10, 2024, 10:09am

Hi,
My board bases on development kit stm32mpu157 dk2 and yocto dunfell version.
I somehow integrated mender layers with my hardware and here is specific layre for my board:
Owner avatar viotas_meta-mender-st-stm32mp15x-port

The problem is when I want to perform OTA update from mender dashboard I got an error like:

ERRO[0000] Failed to read the current active partition: No match between boot and root partitions.: Failed mender_saveenv_canary check. There is an error in the U-Boot setup. Likely causes are: 1) Mismatch between the U-Boot boot loader environment location and the location specified in /etc/fw_env.config. 2) 'mender_setup' is not run by the U-Boot boot script: mender_saveenv_canary variable could not be parsed

I can print envirnoment in u-boot printenv and user space fw_printenv -c fw_env.config.mmc (see at the boottom)

I can switch bettween partion A/B but only using u-boot envirnoment rootfsp but not

fw_setenv mender_boot_part 6
fw_setenv mender_boot_part_hex 6
reboot

they indeed change its state but seems like doesnt takes effect.

I use sd card which after prepared looks like:
Fip partion ~4MB is occupied only with the first 1MB so envirnoment was set at the end of this partition.

/dev/mmcblk0 4710400 0x20000
/dev/mmcblk0 4702208 0x20000

According to documentation mender should integrate with u-boot envrnoment automatically

What can be wrong?

U-Boot envirnoment are:

ViotasUM> printenv
altbootcmd=run bootcmd
arch=arm
autoload=no
baudrate=115200
board=micrometer
board_name=micrometer
boot_a_script=load ${devtype} ${devnum}:${distro_bootpart} ${scriptaddr} ${prefix}${script}; source ${scriptaddr}
boot_device=mmc
boot_efi_binary=if fdt addr ${fdt_addr_r}; then bootefi bootmgr ${fdt_addr_r};else bootefi bootmgr ${fdtcontroladdr};fi;load ${devtype} ${devnum}:${distro_bootpart} ${kernel_addr_r} efi/boot/bootarm.efi; if fdt addr ${fdt_addr_r}; then bootefi ${kernel_addr_r} ${fdt_addr_r};else bootefi ${kernel_addr_r} ${fdtcontroladdr};fi
boot_extlinux=sysboot ${devtype} ${devnum}:${distro_bootpart} any ${scriptaddr} ${prefix}${boot_syslinux_conf}
boot_instance=0
boot_net_usb_start=true
boot_prefixes=/ /boot/
boot_script_dhcp=boot.scr.uimg
boot_scripts=boot.scr.uimg boot.scr
boot_syslinux_conf=extlinux/extlinux.conf
boot_targets=mmc1 ubifs0 mmc0 mmc2 pxe 
bootargs=isolcpus=1 root=/dev/mmcblk0p4 rootwait rw console=ttySTM0,115200
bootcmd=run bootcmd_vioum
bootcmd_mmc0=devnum=0; run mmc_boot
bootcmd_mmc1=devnum=1; run mmc_boot
bootcmd_mmc2=devnum=2; run mmc_boot
bootcmd_pxe=run boot_net_usb_start; dhcp; if pxe get; then pxe boot; fi
bootcmd_ubifs0=devnum=0; run ubifs_boot
bootcmd_vioum=if test ${boot_device} = serial || test ${boot_device} = usb;then echo "Boot over ${boot_device}${boot_instance}!"; stm32prog ${boot_device} ${boot_instance}; else if test -e mmc 0:6 /boot/2;then setenv rootfsp 5;fi;echo "Boot from ${boot_device}${boot_instance}:${rootfsp}!";if mmc dev ${devnum}; then run vio_sd_dynamic_boot; else echo "Unsupported boot device"; fi;fi;
bootcount=1
bootdelay=1
bootlimit=1
cpu=armv7
devnum=0
devtype=mmc
distro_bootcmd=for target in ${boot_targets}; do run bootcmd_${target}; done
efi_dtb_prefixes=/ /dtb/ /dtb/current/
env_check=if env info -p -d -q; then env save; fi
extlinscript=/boot/mmc0_extlinux/extlinux.conf
fdt_addr_r=0xc4000000
fdtcontroladdr=fdde46c0
fdtfile=viotas-micrometer.dtb
kernel_addr_r=0xc2000000
load_efi_dtb=load ${devtype} ${devnum}:${distro_bootpart} ${fdt_addr_r} ${prefix}${efi_fdtfile}
loadaddr=0xc2000000
mender_altbootcmd=if test ${mender_boot_part} = 5; then setenv mender_boot_part 6; setenv mender_boot_part_hex 6; else setenv mender_boot_part 5; setenv mender_boot_part_hex 5; fi; setenv upgrade_available 0; saveenv; run mender_setup
mender_boot_kernel_type=bootm
mender_boot_part=5
mender_boot_part_hex=5
mender_check_saveenv_canary=1
mender_dtb_name=viotas-micrometer.dtb
mender_kernel_name=uImage
mender_setup=if test "${mender_saveenv_canary}" != "1"; then setenv mender_saveenv_canary 1; saveenv; fi; if test "${mender_pre_setup_commands}" != ""; then run mender_pre_setup_commands; fi; if test "${mender_systemd_machine_id}" != ""; then setenv bootargs "systemd.machine_id=${mender_systemd_machine_id} ${bootargs}"; fi; setenv mender_kernel_root /dev/mmcblk0p${mender_boot_part}; if test ${mender_boot_part} = 5; then setenv mender_boot_part_name /dev/mmcblk0p5; else setenv mender_boot_part_name /dev/mmcblk0p6; fi; setenv mender_kernel_root_name ${mender_boot_part_name}; setenv mender_uboot_root mmc 0:${mender_boot_part_hex}; setenv mender_uboot_root_name ${mender_boot_part_name}; setenv expand_bootargs "setenv bootargs \\"${bootargs}\\""; run expand_bootargs; setenv expand_bootargs; if test "${mender_post_setup_commands}" != ""; then run mender_post_setup_commands; fi
mender_try_to_recover=if test ${upgrade_available} = 1; then reset; fi
mender_uboot_boot=mmc 0:4
mender_uboot_dev=0
mender_uboot_if=mmc
mmc_boot=if mmc dev ${devnum}; then devtype=mmc; run scan_dev_for_boot_part; fi
pxefile_addr_r=0xc4200000
ramdisk_addr_r=0xc4400000
rootfsp=4
scan_dev_for_boot=echo Scanning ${devtype} ${devnum}:${distro_bootpart}...; for prefix in ${boot_prefixes}; do run scan_dev_for_extlinux; run scan_dev_for_scripts; done;run scan_dev_for_efi;
scan_dev_for_boot_part=part list ${devtype} ${devnum} -bootable devplist; env exists devplist || setenv devplist 1; for distro_bootpart in ${devplist}; do if fstype ${devtype} ${devnum}:${distro_bootpart} bootfstype; then run scan_dev_for_boot; fi; done; setenv devplist
scan_dev_for_efi=setenv efi_fdtfile ${fdtfile}; if test -z "${fdtfile}" -a -n "${soc}"; then setenv efi_fdtfile ${soc}-${board}${boardver}.dtb; fi; for prefix in ${efi_dtb_prefixes}; do if test -e ${devtype} ${devnum}:${distro_bootpart} ${prefix}${efi_fdtfile}; then run load_efi_dtb; fi;done;if test -e ${devtype} ${devnum}:${distro_bootpart} efi/boot/bootarm.efi; then echo Found EFI removable media binary efi/boot/bootarm.efi; run boot_efi_binary; echo EFI LOAD FAILED: continuing...; fi; setenv efi_fdtfile
scan_dev_for_extlinux=if test -e ${devtype} ${devnum}:${distro_bootpart} ${prefix}${boot_syslinux_conf}; then echo Found ${prefix}${boot_syslinux_conf}; run boot_extlinux; echo SCRIPT FAILED: continuing...; fi
scan_dev_for_scripts=for script in ${boot_scripts}; do if test -e ${devtype} ${devnum}:${distro_bootpart} ${prefix}${script}; then echo Found U-Boot script ${prefix}${script}; run boot_a_script; echo SCRIPT FAILED: continuing...; fi; done
scriptaddr=0xc4100000
serial#=004600383030510939393639
serverip=192.168.1.1
soc=stm32mp
splashimage=0xc4300000
ubifs_boot=env exists bootubipart || env set bootubipart UBI; env exists bootubivol || env set bootubivol boot; if ubi part ${bootubipart} && ubifsmount ubi${devnum}:${bootubivol}; then devtype=ubi; run scan_dev_for_boot; fi
upgrade_available=0
usb_boot=usb start; if usb dev ${devnum}; then devtype=usb; run scan_dev_for_boot_part; fi
vendor=viotas
vio_sd_dynamic_boot=setenv bootargs isolcpus=1 root=/dev/mmcblk0p${rootfsp} rootwait rw console=ttySTM0,115200;load ${devtype} ${devnum}:${rootfsp} ${kernel_addr_r} /boot/uImage;load ${devtype} ${devnum}:${rootfsp} ${fdt_addr_r} /boot/${fdtfile};load ${devtype} ${devnum}:${rootfsp} ${ramdisk_addr_r} /boot/uInitrd;bootm ${kernel_addr_r} ${ramdisk_addr_r}:${filesize} ${fdt_addr_r};
vio_sd_extlinux_boot=rootfsp=4; devnum=0; fstype ${devtype} ${devnum}:${rootfsp} bootfstype;sysboot ${devtype} ${devnum}:${rootfsp} any ${scriptaddr} ${extlinscript}

User space envirnoment after call:
fw_printenv -c fw_env.config.mmc

fw_printenv -c fw_env.config.mmc
altbootcmd=run bootcmd
arch=arm
autoload=no
baudrate=115200
board=micrometer
board_name=micrometer
boot_a_script=load ${devtype} ${devnum}:${distro_bootpart} ${scriptaddr} ${prefix}${script}; source ${scriptaddr}
boot_device=mmc
boot_efi_binary=if fdt addr ${fdt_addr_r}; then bootefi bootmgr ${fdt_addr_r};else bootefi bootmgr ${fdtcontroladdr};fi;load ${devtype} ${devnum}:${distro_bootpart} ${kernel_addr_r} efi/boot/bootarm.efi; if fdt addr ${fdt_addr_r}; then bootefi ${kernel_addr_r} ${fdt_addr_r};else bootefi ${kernel_addr_r} ${fdtcontroladdr};fi
boot_extlinux=sysboot ${devtype} ${devnum}:${distro_bootpart} any ${scriptaddr} ${prefix}${boot_syslinux_conf}
boot_instance=0
boot_net_usb_start=true
boot_prefixes=/ /boot/
boot_script_dhcp=boot.scr.uimg
boot_scripts=boot.scr.uimg boot.scr
boot_syslinux_conf=extlinux/extlinux.conf
boot_targets=mmc1 ubifs0 mmc0 mmc2 pxe 
bootargs=isolcpus=1 root=/dev/mmcblk0p4 rootwait rw console=ttySTM0,115200
bootcmd=run bootcmd_vioum
bootcmd_mmc0=devnum=0; run mmc_boot
bootcmd_mmc1=devnum=1; run mmc_boot
bootcmd_mmc2=devnum=2; run mmc_boot
bootcmd_pxe=run boot_net_usb_start; dhcp; if pxe get; then pxe boot; fi
bootcmd_ubifs0=devnum=0; run ubifs_boot
bootcmd_vioum=if test ${boot_device} = serial || test ${boot_device} = usb;then echo "Boot over ${boot_device}${boot_instance}!"; stm32prog ${boot_device} ${boot_instance}; else if test -e mmc 0:6 /boot/2;then setenv rootfsp 5;fi;echo "Boot from ${boot_device}${boot_instance}:${rootfsp}!";if mmc dev ${devnum}; then run vio_sd_dynamic_boot; else echo "Unsupported boot device"; fi;fi;
bootcount=1
bootdelay=1
bootlimit=1
cpu=armv7
devnum=0
devtype=mmc
distro_bootcmd=for target in ${boot_targets}; do run bootcmd_${target}; done
efi_dtb_prefixes=/ /dtb/ /dtb/current/
env_check=if env info -p -d -q; then env save; fi
extlinscript=/boot/mmc0_extlinux/extlinux.conf
fdt_addr_r=0xc4000000
fdtcontroladdr=fdde46c0
fdtfile=viotas-micrometer.dtb
kernel_addr_r=0xc2000000
load_efi_dtb=load ${devtype} ${devnum}:${distro_bootpart} ${fdt_addr_r} ${prefix}${efi_fdtfile}
loadaddr=0xc2000000
mender_altbootcmd=if test ${mender_boot_part} = 5; then setenv mender_boot_part 6; setenv mender_boot_part_hex 6; else setenv mender_boot_part 5; setenv mender_boot_part_hex 5; fi; setenv upgrade_available 0; saveenv; run mender_setup
mender_boot_kernel_type=bootm
mender_boot_part=5
mender_boot_part_hex=5
mender_check_saveenv_canary=1
mender_dtb_name=viotas-micrometer.dtb
mender_kernel_name=uImage
mender_setup=if test "${mender_saveenv_canary}" != "1"; then setenv mender_saveenv_canary 1; saveenv; fi; if test "${mender_pre_setup_commands}" != ""; then run mender_pre_setup_commands; fi; if test "${mender_systemd_machine_id}" != ""; then setenv bootargs "systemd.machine_id=${mender_systemd_machine_id} ${bootargs}"; fi; setenv mender_kernel_root /dev/mmcblk0p${mender_boot_part}; if test ${mender_boot_part} = 5; then setenv mender_boot_part_name /dev/mmcblk0p5; else setenv mender_boot_part_name /dev/mmcblk0p6; fi; setenv mender_kernel_root_name ${mender_boot_part_name}; setenv mender_uboot_root mmc 0:${mender_boot_part_hex}; setenv mender_uboot_root_name ${mender_boot_part_name}; setenv expand_bootargs "setenv bootargs \\"${bootargs}\\""; run expand_bootargs; setenv expand_bootargs; if test "${mender_post_setup_commands}" != ""; then run mender_post_setup_commands; fi
mender_try_to_recover=if test ${upgrade_available} = 1; then reset; fi
mender_uboot_boot=mmc 0:4
mender_uboot_dev=0
mender_uboot_if=mmc
mmc_boot=if mmc dev ${devnum}; then devtype=mmc; run scan_dev_for_boot_part; fi
pxefile_addr_r=0xc4200000
ramdisk_addr_r=0xc4400000
rootfsp=5
scan_dev_for_boot=echo Scanning ${devtype} ${devnum}:${distro_bootpart}...; for prefix in ${boot_prefixes}; do run scan_dev_for_extlinux; run scan_dev_for_scripts; done;run scan_dev_for_efi;
scan_dev_for_boot_part=part list ${devtype} ${devnum} -bootable devplist; env exists devplist || setenv devplist 1; for distro_bootpart in ${devplist}; do if fstype ${devtype} ${devnum}:${distro_bootpart} bootfstype; then run scan_dev_for_boot; fi; done; setenv devplist
scan_dev_for_efi=setenv efi_fdtfile ${fdtfile}; if test -z "${fdtfile}" -a -n "${soc}"; then setenv efi_fdtfile ${soc}-${board}${boardver}.dtb; fi; for prefix in ${efi_dtb_prefixes}; do if test -e ${devtype} ${devnum}:${distro_bootpart} ${prefix}${efi_fdtfile}; then run load_efi_dtb; fi;done;if test -e ${devtype} ${devnum}:${distro_bootpart} efi/boot/bootarm.efi; then echo Found EFI removable media binary efi/boot/bootarm.efi; run boot_efi_binary; echo EFI LOAD FAILED: continuing...; fi; setenv efi_fdtfile
scan_dev_for_extlinux=if test -e ${devtype} ${devnum}:${distro_bootpart} ${prefix}${boot_syslinux_conf}; then echo Found ${prefix}${boot_syslinux_conf}; run boot_extlinux; echo SCRIPT FAILED: continuing...; fi
scan_dev_for_scripts=for script in ${boot_scripts}; do if test -e ${devtype} ${devnum}:${distro_bootpart} ${prefix}${script}; then echo Found U-Boot script ${prefix}${script}; run boot_a_script; echo SCRIPT FAILED: continuing...; fi; done
scriptaddr=0xc4100000
serial#=004600383030510939393639
serverip=192.168.1.1
soc=stm32mp
splashimage=0xc4300000
ubifs_boot=env exists bootubipart || env set bootubipart UBI; env exists bootubivol || env set bootubivol boot; if ubi part ${bootubipart} && ubifsmount ubi${devnum}:${bootubivol}; then devtype=ubi; run scan_dev_for_boot; fi
upgrade_available=0
usb_boot=usb start; if usb dev ${devnum}; then devtype=usb; run scan_dev_for_boot_part; fi
vendor=viotas
vio_sd_dynamic_boot=setenv bootargs isolcpus=1 root=/dev/mmcblk0p${rootfsp} rootwait rw console=ttySTM0,115200;load ${devtype} ${devnum}:${rootfsp} ${kernel_addr_r} /boot/uImage;load ${devtype} ${devnum}:${rootfsp} ${fdt_addr_r} /boot/${fdtfile};load ${devtype} ${devnum}:${rootfsp} ${ramdisk_addr_r} /boot/uInitrd;bootm ${kernel_addr_r} ${ramdisk_addr_r}:${filesize} ${fdt_addr_r};
vio_sd_extlinux_boot=rootfsp=4; devnum=0; fstype ${devtype} ${devnum}:${rootfsp} bootfstype;sysboot ${devtype} ${devnum}:${rootfsp} any ${scriptaddr} ${extlinscript}
root@vio-um0025A:/etc#

TheYoctoJester · July 10, 2024, 10:15am

Hi @zhalat,

As neither your bootcmd nor the defaulted bootcmd_vioum call the mender_setup command, nor use its results there obviously cannot be any effect. Please see the documentation at Manual U-Boot integration | Mender documentation for the required changes.

Greets,
Josef

zhalat · July 11, 2024, 9:52am

well, my boot.cmd.in seems to call it

github.com

zhalat/viotas_meta-mender-st-stm32mp15x-port/blob/master/recipes-bsp/stm32mp-uboot-scr/files/boot.cmd.in

# Generate boot.scr.uimg:
# ./tools/mkimage -C none -A arm -T script -d boot.src.cmd boot.scr.uimg
#

# M4 Firmware load
env set m4fw_name "rproc-m4-fw.elf"
env set m4fw_addr ${kernel_addr_r}
env set boot_m4fw 'rproc init; rproc load 0 ${m4fw_addr} ${filesize}; rproc load_rsc 0 ${m4fw_addr} ${filesize}; rproc start 0'

# boot M4 Firmware when available
env set scan_m4fw 'if test -e ${mender_kernel_root} /boot/${m4fw_name};then echo Found M4 FW $m4fw_name; if load ${mender_uboot_boot} ${m4fw_addr} /boot/${m4fw_name}; then run boot_m4fw; fi; fi;'

setenv bootargs 'root=${mender_kernel_root} rootwait rw console=ttySTM0,115200'
run mender_setup

mmc dev ${mender_uboot_dev}

run scan_m4fw

load ${mender_uboot_root} ${kernel_addr_r} /boot/@@KERNEL_IMAGETYPE@@

This file has been truncated. show original

TheYoctoJester · July 11, 2024, 10:11am

@zhalat

Running mender_setup after setenv bootargs is kinda nonsensical, because the values of mender_kernel_root is set by mender_setup, and hence will never change. The first thing is to move the run mender_setup call upwards.

Then the obvious next steps are:

make sure that the boot.scr are actually executed as you expect
if it is, add debugging statements like echo along the way to see what happens, and adjust accordingly.

Greets,
Josef

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U-Boot integration [stm32mpu157 dk2]

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