Table of Contents
Yocto
Yocto can be used to create a customised Linux installation on an embedded system with a fully writable root filesystem and package management.
This page builds yocto for the STM32MP157D-DK1 Discovery kit and uses the ST Yocto “recipes”. These recipes may not be what you want but are a good place to start.
Setup
Install required tools for yocto (and buildroot).
apt update apt full-upgrade apt install build-essential git libncurses5-dev libssl-dev bc picocom tmux chrpath diffstat gawk zstd lz4 gdisk locales
Install locale for yocto
dpkg-reconfigure locales en_US.UTF-8...
Init
Yocto will not build as root so create an installation directory as non-root
sudo -s mkdir -p /opt/src/yocto chown user:user /opt/src/yocto exit
Install
cd /opt/src/yocto git clone git://git.yoctoproject.org/poky.git cd /opt/src/yocto/poky git checkout mickledore
cd /opt/src/yocto git clone https://github.com/STMicroelectronics/meta-st-stm32mp cd /opt/src/yocto/meta-st-stm32mp git checkout mickledore
cd /opt/src/yocto git clone https://github.com/openembedded/meta-openembedded.git cd /opt/src/yocto/meta-openembedded git checkout mickledore
Fixes for meta-st-stm32mp
GCC
GCC has been updated so rename patch version
git mv recipes-devtools/gcc/gcc-source_12.2.bbappend recipes-devtools/gcc/gcc-source_12.3.bbappend
NB the above is a known but unaddressed issue
Dev tools
Fix bugs with the compiler checksum and path on AARCH64
diff -u recipes-devtools/gcc-arm-none-eabi/gcc-arm-none-eabi_11.inc.orig recipes-devtools/gcc-arm-none-eabi/gcc-arm-none-eabi_11.inc
--- recipes-devtools/gcc-arm-none-eabi/gcc-arm-none-eabi_11.inc.orig 2023-08-15 17:54:43.909829551 +0100
+++ recipes-devtools/gcc-arm-none-eabi/gcc-arm-none-eabi_11.inc 2023-08-15 18:05:45.399685699 +0100
@@ -2,6 +2,7 @@
LICENSE = "GPL-3.0-with-GCC-exception & GPL-3.0-only"
LIC_FILES_CHKSUM = "file://share/info/gcc.info;md5=32f1a898d3ddd89ccb368ff8f483c98a"
+LIC_FILES_CHKSUM:aarch64 = "file://share/info/gcc.info;md5=dfc35c9a2dc2669a7eb33db64ef328cc"
SRC_URI = "https://developer.arm.com/-/media/Files/downloads/gnu/11.2-2022.02/binrel/gcc-arm-11.2-2022.02-x86_64-arm-none-eabi.tar.xz;name=gcc-arm-x86"
SRC_URI[gcc-arm-x86.sha256sum] = "8c5acd5ae567c0100245b0556941c237369f210bceb196edfe5a2e7532c60326"
@@ -12,7 +13,7 @@
PV = "11"
S = "${WORKDIR}/gcc-arm-11.2-2022.02-x86_64-arm-none-eabi"
-S:aarch64 = "${WORKDIR}/gcc-arm-11.2-2022.02-x86_64-aarch64-none-linux-gnu"
+S:aarch64 = "${WORKDIR}/gcc-arm-11.2-2022.02-aarch64-arm-none-eabi"
do_install() {
install -d ${D}/${datadir}/gcc-arm-none-eabi
NB the above patch has been submitted to ST.
Cortex-M4
Disable the AI demo if the compiler aborts with a floating point bug (seen on AMD64).
diff -u recipes-extended/m4projects/m4projects-stm32mp1.bb.orig recipes-extended/m4projects/m4projects-stm32mp1.bb
--- recipes-extended/m4projects/m4projects-stm32mp1.bb.orig 2023-08-14 19:32:51.813485117 +0100
+++ recipes-extended/m4projects/m4projects-stm32mp1.bb 2023-08-14 19:38:11.402908332 +0100
@@ -36,7 +36,6 @@
STM32MP157C-EV1/Applications/OpenAMP/OpenAMP_TTY_echo_wakeup \
STM32MP157C-EV1/Applications/FreeRTOS/FreeRTOS_ThreadCreation \
STM32MP157C-EV1/Applications/CoproSync/CoproSync_ShutDown \
- STM32MP157C-EV1/Demonstrations/AI_Character_Recognition \
"
PROJECTS_LIST_DK2 = " \
@@ -64,7 +63,6 @@
STM32MP157C-DK2/Applications/FreeRTOS/FreeRTOS_ThreadCreation \
STM32MP157C-DK2/Applications/CoproSync/CoproSync_ShutDown \
STM32MP157C-DK2/Applications/OpenAMP/OpenAMP_TTY_echo_wakeup \
- STM32MP157C-DK2/Demonstrations/AI_Character_Recognition \
"
PROJECTS_LIST = "${PROJECTS_LIST_EV1} ${PROJECTS_LIST_DK2}"
NB the correct solution would be to update the compiler
Configure
Create build directory and enter
cd /opt/src/yocto bash source ./poky/oe-init-build-env build
Add layers
diff -u conf/bblayers.conf.orig conf/bblayers.conf --- conf/bblayers.conf.orig 2023-08-13 15:55:14.394940760 +0100 +++ conf/bblayers.conf 2023-08-13 15:56:27.130193221 +0100 @@ -9,4 +9,7 @@ /opt/src/yocto/poky/meta \ /opt/src/yocto/poky/meta-poky \ /opt/src/yocto/poky/meta-yocto-bsp \ + /opt/src/yocto/meta-openembedded/meta-oe \ + /opt/src/yocto/meta-openembedded/meta-python \ + /opt/src/yocto/meta-st-stm32mp \ "
Add options
diff -u conf/local.conf.orig conf/local.conf --- conf/local.conf.orig 2023-08-14 10:26:47.714480200 +0100 +++ conf/local.conf 2023-08-14 10:27:37.948358400 +0100 @@ -36,7 +36,10 @@ #MACHINE ?= "edgerouter" # # This sets the default machine to be qemux86-64 if no other machine is selected: -MACHINE ??= "qemux86-64" +#MACHINE ??= "qemux86-64" +MACHINE = "stm32mp1" +XZ_DEFAULTS = "--memlimit=1500MiB" +BB_NUMBER_THREADS = "2" # These are some of the more commonly used values. Looking at the files in the # meta/conf/machine directory, or the conf/machine directory of any additional layers
Layers
bitbake-layers show-layers NOTE: Starting bitbake server... layer path priority ======================================================================================================== core /opt/src/yocto/poky/meta 5 yocto /opt/src/yocto/poky/meta-poky 5 yoctobsp /opt/src/yocto/poky/meta-yocto-bsp 5 openembedded-layer /opt/src/yocto/meta-openembedded/meta-oe 5 meta-python /opt/src/yocto/meta-openembedded/meta-python 5 stm-st-stm32mp /opt/src/yocto/meta-st-stm32mp 6
Test
bitbake -c menuconfig virtual/kernel exit
ARM64 host
Build Configuration: BB_VERSION = "2.4.0" BUILD_SYS = "aarch64-linux" NATIVELSBSTRING = "universal" TARGET_SYS = "arm-poky-linux-gnueabi" MACHINE = "stm32mp1" DISTRO = "poky" DISTRO_VERSION = "4.2.2" TUNE_FEATURES = "arm vfp cortexa7 neon vfpv4 thumb callconvention-hard" TARGET_FPU = "hard" meta meta-poky meta-yocto-bsp = "mickledore:0a98281d37b0bd8dc1548c390216cb3978e36e0e" meta-oe meta-python = "mickledore:75cf318cef3b4ee81fad2782cf063ecd69ba8842" meta-st-stm32mp = "mickledore:931b3f5be2c00f55d114c8f9122082a9d229b776"
AMD64 host
Build Configuration: BB_VERSION = "2.4.0" BUILD_SYS = "x86_64-linux" NATIVELSBSTRING = "debian-11" TARGET_SYS = "arm-poky-linux-gnueabi" MACHINE = "stm32mp1" DISTRO = "poky" DISTRO_VERSION = "4.2.2" TUNE_FEATURES = "arm vfp cortexa7 neon vfpv4 thumb callconvention-hard" TARGET_FPU = "hard" meta meta-poky meta-yocto-bsp = "mickledore:0a98281d37b0bd8dc1548c390216cb3978e36e0e" meta-oe meta-python = "mickledore:75cf318cef3b4ee81fad2782cf063ecd69ba8842" meta-st-stm32mp = "mickledore:931b3f5be2c00f55d114c8f9122082a9d229b776"
Build
Build an image such as `core-image-minimal' or `core-image-full-cmdline'
#! /bin/bash . /opt/src/yocto/poky/oe-init-build-env /opt/src/yocto/build bitbake core-image-full-cmdline
Eg.
bitbake core-image-minimal Loading cache: 100% |#############################################################################################################| Loaded 4037 entries from dependency cache. Parsing recipes: 100% |###########################################################################################################| Parsing of 2370 .bb files complete (2369 cached, 1 parsed). 4037 targets, 144 skipped, 0 masked, 0 errors. NOTE: Resolving any missing task queue dependencies Build Configuration: BB_VERSION = "2.4.0" BUILD_SYS = "aarch64-linux" NATIVELSBSTRING = "universal" TARGET_SYS = "arm-poky-linux-gnueabi" MACHINE = "stm32mp1" DISTRO = "poky" DISTRO_VERSION = "4.2.2" TUNE_FEATURES = "arm vfp cortexa7 neon vfpv4 thumb callconvention-hard" TARGET_FPU = "hard" meta meta-poky meta-yocto-bsp = "mickledore:0a98281d37b0bd8dc1548c390216cb3978e36e0e" meta-oe meta-python = "mickledore:75cf318cef3b4ee81fad2782cf063ecd69ba8842" meta-st-stm32mp = "mickledore:3fb487682e2896e195000dd8cbf6b29ee968e0d8" Initialising tasks: 100% |########################################################################################################| Sstate summary: Wanted 105 Local 0 Mirrors 0 Missed 105 Current 1357 (0% match, 92% complete) Removing 4 stale sstate objects for arch stm32mp1: 100% |#########################################################################| NOTE: Executing Tasks NOTE: Tasks Summary: Attempted 3809 tasks of which 3618 didn't need to be rerun and all succeeded.
Flash
Write image to microsd card identified as /dev/sdc
#! /bin/bash cd /opt/src/yocto/build/tmp/deploy/images/stm32mp1 ./scripts/create_sdcard_from_flashlayout.sh flashlayout_core-image-full-cmdline/optee/FlashLayout_sdcard_stm32mp157d-dk1-optee.tsv sudo dd if=FlashLayout_sdcard_stm32mp157d-dk1-optee.raw of=/dev/sdc bs=4M conv=fdatasync,notrunc status=progress sleep 1 sudo hdparm -z /dev/sdc
Boot
NOTICE: CPU: STM32MP157DAC Rev.Z NOTICE: Model: STMicroelectronics STM32MP157D-DK1 Discovery Board NOTICE: Board: MB1272 Var3.0 Rev.C-03 INFO: PMIC version = 0x21 INFO: Reset reason (0x15): INFO: Power-on Reset (rst_por) INFO: FCONF: Reading TB_FW firmware configuration file from: 0x2ffe2000 INFO: FCONF: Reading firmware configuration information for: stm32mp_io INFO: Using SDMMC INFO: Instance 1 INFO: Boot used partition fsbl1 NOTICE: BL2: v2.8-stm32mp1-r1.0(debug):lts-v2.8.6-dirty(ff0bd5f9) NOTICE: BL2: Built : 17:57:15, Apr 21 2023 INFO: BL2: Doing platform setup INFO: RAM: DDR3-DDR3L 16bits 533000kHz INFO: Memory size = 0x20000000 (512 MB) INFO: BL2: Loading image id 1 INFO: Loading image id=1 at address 0x2ffff000 INFO: Image id=1 loaded: 0x2ffff000 - 0x2ffff1ea INFO: FCONF: Reading FW_CONFIG firmware configuration file from: 0x2ffff000 INFO: FCONF: Reading firmware configuration information for: dyn_cfg INFO: FCONF: Reading firmware configuration information for: stm32mp1_firewall INFO: BL2: Loading image id 4 INFO: Loading image id=4 at address 0xde000000 INFO: Image id=4 loaded: 0xde000000 - 0xde00001c INFO: OPTEE ep=0xde000000 INFO: OPTEE header info: INFO: magic=0x4554504f INFO: version=0x2 INFO: arch=0x0 INFO: flags=0x0 INFO: nb_images=0x1 INFO: BL2: Loading image id 8 INFO: Loading image id=8 at address 0xde000000 INFO: Image id=8 loaded: 0xde000000 - 0xde038bc8 INFO: BL2: Skip loading image id 9 INFO: BL2: Loading image id 2 INFO: Loading image id=2 at address 0xc0500000 INFO: Image id=2 loaded: 0xc0500000 - 0xc051ee40 INFO: BL2: Skip loading image id 16 INFO: BL2: Loading image id 5 INFO: Loading image id=5 at address 0xc0100000 INFO: Image id=5 loaded: 0xc0100000 - 0xc01f5d3c NOTICE: BL2: Booting BL32 INFO: Entry point address = 0xde000000 INFO: SPSR = 0x1d3 I/TC: Early console on UART#4 I/TC: I/TC: Embedded DTB found I/TC: OP-TEE version: 3.19.0-dev (gcc version 12.3.0 (GCC)) #1 Fri Oct 14 19:00:05 UTC 2022 arm I/TC: WARNING: This OP-TEE configuration might be insecure! I/TC: WARNING: Please check https://optee.readthedocs.io/en/latest/architecture/porting_guidelines.html I/TC: Primary CPU initializing I/TC: Platform stm32mp1: flavor PLATFORM_FLAVOR - DT stm32mp157d-dk1.dts I/TC: DTB enables console (non-secure) I/TC: Primary CPU switching to normal world boot optee optee: OP-TEE: revision 3.19 (afacf356) U-Boot 2022.10-stm32mp-r1 (Oct 03 2022 - 19:25:32 +0000) CPU: STM32MP157DAC Rev.Z Model: STMicroelectronics STM32MP157D-DK1 Discovery Board Board: stm32mp1 in trusted mode (st,stm32mp157d-dk1) Board: MB1272 Var3.0 Rev.C-03 DRAM: 512 MiB optee optee: OP-TEE: revision 3.19 (afacf356) Clocks: - MPU : 800 MHz - MCU : 208.878 MHz - AXI : 266.500 MHz - PER : 24 MHz - DDR : 533 MHz Core: 359 devices, 39 uclasses, devicetree: board WDT: Started watchdog with servicing (32s timeout) NAND: 0 MiB MMC: STM32 SD/MMC: 0 Loading Environment from MMC... *** Warning - bad CRC, using default environment In: serial Out: serial Err: serial Net: eth0: ethernet@5800a000 Hit any key to stop autoboot: 0 Boot over mmc0! Saving Environment to MMC... Writing to redundant MMC(0)... OK switch to partitions #0, OK mmc0 is current device Scanning mmc 0:8... Found U-Boot script /boot.scr.uimg 4187 bytes read in 116 ms (35.2 KiB/s) ## Executing script at c4100000 Executing SCRIPT on target=mmc0 FOUND /mmc0_extlinux/stm32mp157d-dk1_extlinux.conf Saving Environment to MMC... Writing to MMC(0)... OK switch to partitions #0, OK mmc0 is current device Scanning mmc 0:8... Found /mmc0_extlinux/stm32mp157d-dk1_extlinux.conf Retrieving file: /mmc0_extlinux/stm32mp157d-dk1_extlinux.conf Retrieving file: /splash_portrait.bmp Select the boot mode 1: OpenSTLinux 2: stm32mp157d-dk1-a7-examples 3: stm32mp157d-dk1-m4-examples Enter choice: 1: OpenSTLinux Retrieving file: /uImage append: root=PARTUUID=e91c4e10-16e6-4c0e-bd0e-77becf4a3582 rootwait rw console=ttySTM0,115200 Retrieving file: /stm32mp157d-dk1.dtb ## Booting kernel from Legacy Image at c2000000 ... Image Name: Linux-6.1.28 Created: 2023-05-11 14:04:52 UTC Image Type: ARM Linux Kernel Image (uncompressed) Data Size: 7835448 Bytes = 7.5 MiB Load Address: c2000040 Entry Point: c2000040 Verifying Checksum ... OK ## Flattened Device Tree blob at c4000000 Booting using the fdt blob at 0xc4000000 XIP Kernel Image Loading Device Tree to cffde000, end cffff651 ... OK Starting kernel ... I/TC: Secondary CI/TC: Secondary CPU 1 switching to normal world boot [ 0.000000] Booting Linux on physical CPU 0x0 [ 0.000000] Linux version 6.1.28 (oe-user@oe-host) (arm-poky-linux-gnueabi-gcc (GCC) 12.3.0, GNU ld (GNU Binutils) 2.40.0.20230620) #1 SMP PREEMPT Thu May 11 14:04:52 UTC 2023 [ 0.000000] CPU: ARMv7 Processor [410fc075] revision 5 (ARMv7), cr=10c5387d [ 0.000000] CPU: div instructions available: patching division code [ 0.000000] CPU: PIPT / VIPT nonaliasing data cache, VIPT aliasing instruction cache [ 0.000000] OF: fdt: Machine model: STMicroelectronics STM32MP157D-DK1 Discovery Board [ 0.000000] Memory policy: Data cache writealloc [ 0.000000] Reserved memory: created DMA memory pool at 0x10000000, size 0 MiB [ 0.000000] OF: reserved mem: initialized node mcuram2@10000000, compatible id shared-dma-pool [ 0.000000] Reserved memory: created DMA memory pool at 0x10040000, size 0 MiB [ 0.000000] OF: reserved mem: initialized node vdev0vring0@10040000, compatible id shared-dma-pool [ 0.000000] Reserved memory: created DMA memory pool at 0x10041000, size 0 MiB [ 0.000000] OF: reserved mem: initialized node vdev0vring1@10041000, compatible id shared-dma-pool [ 0.000000] Reserved memory: created DMA memory pool at 0x10042000, size 0 MiB [ 0.000000] OF: reserved mem: initialized node vdev0buffer@10042000, compatible id shared-dma-pool [ 0.000000] Reserved memory: created DMA memory pool at 0x10048000, size 0 MiB [ 0.000000] OF: reserved mem: initialized node mcu-rsc-table@10048000, compatible id shared-dma-pool [ 0.000000] Reserved memory: created DMA memory pool at 0x30000000, size 0 MiB [ 0.000000] OF: reserved mem: initialized node mcuram@30000000, compatible id shared-dma-pool [ 0.000000] Reserved memory: created DMA memory pool at 0x38000000, size 0 MiB [ 0.000000] OF: reserved mem: initialized node retram@38000000, compatible id shared-dma-pool [ 0.000000] cma: Reserved 64 MiB at 0xda000000 [ 0.000000] Zone ranges: [ 0.000000] Normal [mem 0x00000000c0000000-0x00000000ddffffff] [ 0.000000] HighMem [mem 0x00000000de000000-0x00000000dfffffff] [ 0.000000] Movable zone start for each node [ 0.000000] Early memory node ranges [ 0.000000] node 0: [mem 0x00000000c0000000-0x00000000d3ffffff] [ 0.000000] node 0: [mem 0x00000000d4000000-0x00000000d7ffffff] [ 0.000000] node 0: [mem 0x00000000d8000000-0x00000000ddffffff] [ 0.000000] node 0: [mem 0x00000000de000000-0x00000000dfffffff] [ 0.000000] Initmem setup node 0 [mem 0x00000000c0000000-0x00000000dfffffff] [ 0.000000] psci: probing for conduit method from DT. [ 0.000000] psci: PSCIv1.0 detected in firmware. [ 0.000000] psci: Using standard PSCI v0.2 function IDs [ 0.000000] psci: MIGRATE_INFO_TYPE not supported. [ 0.000000] psci: SMC Calling Convention v1.1 [ 0.000000] percpu: Embedded 16 pages/cpu s34004 r8192 d23340 u65536 [ 0.000000] Built 1 zonelists, mobility grouping on. Total pages: 129992 [ 0.000000] Kernel command line: root=PARTUUID=e91c4e10-16e6-4c0e-bd0e-77becf4a3582 rootwait rw console=ttySTM0,115200 [ 0.000000] Dentry cache hash table entries: 65536 (order: 6, 262144 bytes, linear) [ 0.000000] Inode-cache hash table entries: 32768 (order: 5, 131072 bytes, linear) [ 0.000000] mem auto-init: stack:all(zero), heap alloc:off, heap free:off [ 0.000000] Memory: 335712K/524288K available (12288K kernel code, 1315K rwdata, 3516K rodata, 1024K init, 226K bss, 123040K reserved, 65536K cma-reserved, 0K highmem) [ 0.000000] SLUB: HWalign=64, Order=0-3, MinObjects=0, CPUs=2, Nodes=1 [ 0.000000] trace event string verifier disabled [ 0.000000] rcu: Preemptible hierarchical RCU implementation. [ 0.000000] rcu: RCU event tracing is enabled. [ 0.000000] Trampoline variant of Tasks RCU enabled. [ 0.000000] rcu: RCU calculated value of scheduler-enlistment delay is 10 jiffies. [ 0.000000] NR_IRQS: 16, nr_irqs: 16, preallocated irqs: 16 [ 0.000000] rcu: srcu_init: Setting srcu_struct sizes based on contention. [ 0.000000] arch_timer: cp15 timer(s) running at 24.00MHz (virt). [ 0.000000] clocksource: arch_sys_counter: mask: 0xffffffffffffff max_cycles: 0x588fe9dc0, max_idle_ns: 440795202592 ns [ 0.000001] sched_clock: 56 bits at 24MHz, resolution 41ns, wraps every 4398046511097ns [ 0.000020] Switching to timer-based delay loop, resolution 41ns [ 0.001650] Console: colour dummy device 80x30 [ 0.001717] Calibrating delay loop (skipped), value calculated using timer frequency.. 48.00 BogoMIPS (lpj=240000) [ 0.001741] pid_max: default: 32768 minimum: 301 [ 0.002053] Mount-cache hash table entries: 1024 (order: 0, 4096 bytes, linear) [ 0.002078] Mountpoint-cache hash table entries: 1024 (order: 0, 4096 bytes, linear) [ 0.003066] CPU: Testing write buffer coherency: ok [ 0.003564] /cpus/cpu@0 missing clock-frequency property [ 0.003614] /cpus/cpu@1 missing clock-frequency property [ 0.003633] CPU0: thread -1, cpu 0, socket 0, mpidr 80000000 [ 0.004934] cblist_init_generic: Setting adjustable number of callback queues. [ 0.004954] cblist_init_generic: Setting shift to 1 and lim to 1. [ 0.005169] Setting up static identity map for 0xc0100000 - 0xc0100060 [ 0.005404] rcu: Hierarchical SRCU implementation. [ 0.005413] rcu: Max phase no-delay instances is 1000. [ 0.007113] smp: Bringing up secondary CPUs ... [ 0.014646] CPU1: thread -1, cpu 1, socket 0, mpidr 80000001 [ 0.014856] smp: Brought up 1 node, 2 CPUs [ 0.014873] SMP: Total of 2 processors activated (96.00 BogoMIPS). [ 0.014884] CPU: All CPU(s) started in SVC mode. [ 0.015811] devtmpfs: initialized [ 0.053447] VFP support v0.3: implementor 41 architecture 2 part 30 variant 7 rev 5 [ 0.053828] clocksource: jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 19112604462750000 ns [ 0.053857] futex hash table entries: 512 (order: 3, 32768 bytes, linear) [ 0.057459] pinctrl core: initialized pinctrl subsystem [ 0.059836] NET: Registered PF_NETLINK/PF_ROUTE protocol family [ 0.062780] DMA: preallocated 256 KiB pool for atomic coherent allocations [ 0.064542] thermal_sys: Registered thermal governor 'step_wise' [ 0.065042] cpuidle: using governor menu [ 0.065454] hw-breakpoint: found 5 (+1 reserved) breakpoint and 4 watchpoint registers. [ 0.065471] hw-breakpoint: maximum watchpoint size is 8 bytes. [ 0.065898] Serial: AMBA PL011 UART driver [ 0.069519] stm32-pm-domain pm_domain: domain core-ret-power-domain registered [ 0.069554] stm32-pm-domain pm_domain: subdomain core-power-domain registered [ 0.069566] stm32-pm-domain pm_domain: domains probed [ 0.097717] platform 5a001000.display-controller: Fixed dependency cycle(s) with /soc/etzpc@5c007000/i2c@40012000/hdmi-transmitter@39 [ 0.100912] platform 4000b000.audio-controller: Fixed dependency cycle(s) with /soc/etzpc@5c007000/i2c@40012000/hdmi-transmitter@39 [ 0.104661] platform 49000000.usb-otg: Fixed dependency cycle(s) with /soc/etzpc@5c007000/i2c@5c002000/stusb1600@28/connector [ 0.131634] kprobes: kprobe jump-optimization is enabled. All kprobes are optimized if possible. [ 0.138366] SCSI subsystem initialized [ 0.139284] usbcore: registered new interface driver usbfs [ 0.139362] usbcore: registered new interface driver hub [ 0.139427] usbcore: registered new device driver usb [ 0.139941] pps_core: LinuxPPS API ver. 1 registered [ 0.139952] pps_core: Software ver. 5.3.6 - Copyright 2005-2007 Rodolfo Giometti <giometti@linux.it> [ 0.139980] PTP clock support registered [ 0.140346] EDAC MC: Ver: 3.0.0 [ 0.141480] Driver 'scmi-optee' was unable to register with bus_type 'tee' because the bus was not initialized. [ 0.144577] clocksource: Switched to clocksource arch_sys_counter [ 0.158695] NET: Registered PF_INET protocol family [ 0.159056] IP idents hash table entries: 8192 (order: 4, 65536 bytes, linear) [ 0.161228] tcp_listen_portaddr_hash hash table entries: 512 (order: 0, 4096 bytes, linear) [ 0.161275] Table-perturb hash table entries: 65536 (order: 6, 262144 bytes, linear) [ 0.161299] TCP established hash table entries: 4096 (order: 2, 16384 bytes, linear) [ 0.161353] TCP bind hash table entries: 4096 (order: 4, 65536 bytes, linear) [ 0.161498] TCP: Hash tables configured (established 4096 bind 4096) [ 0.161645] UDP hash table entries: 256 (order: 1, 8192 bytes, linear) [ 0.161694] UDP-Lite hash table entries: 256 (order: 1, 8192 bytes, linear) [ 0.161956] NET: Registered PF_UNIX/PF_LOCAL protocol family [ 0.162947] RPC: Registered named UNIX socket transport module. [ 0.162966] RPC: Registered udp transport module. [ 0.162972] RPC: Registered tcp transport module. [ 0.162977] RPC: Registered tcp NFSv4.1 backchannel transport module. [ 0.163743] hw perfevents: enabled with armv7_cortex_a7 PMU driver, 5 counters available [ 0.165821] Initialise system trusted keyrings [ 0.166360] workingset: timestamp_bits=14 max_order=17 bucket_order=3 [ 0.177505] squashfs: version 4.0 (2009/01/31) Phillip Lougher [ 0.178789] NFS: Registering the id_resolver key type [ 0.178858] Key type id_resolver registered [ 0.178865] Key type id_legacy registered [ 0.179027] nfs4filelayout_init: NFSv4 File Layout Driver Registering... [ 0.179039] nfs4flexfilelayout_init: NFSv4 Flexfile Layout Driver Registering... [ 0.179098] ntfs: driver 2.1.32 [Flags: R/O]. [ 0.179377] jffs2: version 2.2. (NAND) © 2001-2006 Red Hat, Inc. [ 0.180630] Key type asymmetric registered [ 0.180648] Asymmetric key parser 'x509' registered [ 0.180910] bounce: pool size: 64 pages [ 0.181094] Block layer SCSI generic (bsg) driver version 0.4 loaded (major 246) [ 0.181107] io scheduler mq-deadline registered [ 0.181116] io scheduler kyber registered [ 0.193769] STM32 USART driver initialized [ 0.213254] brd: module loaded [ 0.223048] loop: module loaded [ 0.230714] CAN device driver interface [ 0.232729] pegasus: Pegasus/Pegasus II USB Ethernet driver [ 0.232808] usbcore: registered new interface driver pegasus [ 0.232877] usbcore: registered new interface driver asix [ 0.232944] usbcore: registered new interface driver ax88179_178a [ 0.232992] usbcore: registered new interface driver cdc_ether [ 0.233069] usbcore: registered new interface driver smsc75xx [ 0.233135] usbcore: registered new interface driver smsc95xx [ 0.233184] usbcore: registered new interface driver net1080 [ 0.233232] usbcore: registered new interface driver cdc_subset [ 0.233278] usbcore: registered new interface driver zaurus [ 0.233388] usbcore: registered new interface driver cdc_ncm [ 0.235484] usbcore: registered new interface driver usb-storage [ 0.235766] usbcore: registered new device driver onboard-usb-hub [ 0.239049] i2c_dev: i2c /dev entries driver [ 0.242562] arm_smc_wdt watchdog: Watchdog registered (timeout=32 sec, nowayout=0) [ 0.244782] sdhci: Secure Digital Host Controller Interface driver [ 0.244795] sdhci: Copyright(c) Pierre Ossman [ 0.244802] Synopsys Designware Multimedia Card Interface Driver [ 0.245231] sdhci-pltfm: SDHCI platform and OF driver helper [ 0.246446] ledtrig-cpu: registered to indicate activity on CPUs [ 0.246951] usbcore: registered new interface driver usbhid [ 0.246964] usbhid: USB HID core driver [ 0.249361] optee: probing for conduit method. [ 0.249390] optee: revision 3.19 (afacf356) [ 0.249943] optee: dynamic shared memory is enabled [ 0.252034] optee: initialized driver [ 0.255531] NET: Registered PF_INET6 protocol family [ 0.258491] random: crng init done [ 0.259987] Segment Routing with IPv6 [ 0.260032] In-situ OAM (IOAM) with IPv6 [ 0.260135] sit: IPv6, IPv4 and MPLS over IPv4 tunneling driver [ 0.261065] NET: Registered PF_PACKET protocol family [ 0.261082] can: controller area network core [ 0.261169] NET: Registered PF_CAN protocol family [ 0.261182] can: raw protocol [ 0.261193] can: broadcast manager protocol [ 0.261208] can: netlink gateway - max_hops=1 [ 0.261530] Key type dns_resolver registered [ 0.261652] ThumbEE CPU extension supported. [ 0.261696] Registering SWP/SWPB emulation handler [ 0.262267] Loading compiled-in X.509 certificates [ 0.277882] arm-scmi firmware:scmi: Enabled polling mode TX channel - prot_id:16 [ 0.278119] arm-scmi firmware:scmi: SCMI Notifications - Core Enabled. [ 0.278215] arm-scmi firmware:scmi: SCMI Protocol v2.0 'ST:' Firmware version 0x0 [ 0.324359] stm32-dma 48000000.dma-controller: STM32 DMA driver registered [ 0.326689] stm32-dma 48001000.dma-controller: STM32 DMA driver registered [ 0.330290] stm32-mdma 58000000.dma-controller: STM32 MDMA driver registered [ 0.334749] stm_thermal 50028000.thermal: stm_thermal_probe: Driver initialized successfully [ 0.338187] /soc/interrupt-controller@5000d000: bank0 [ 0.338220] /soc/interrupt-controller@5000d000: bank1 [ 0.338238] /soc/interrupt-controller@5000d000: bank2 [ 0.340935] stm32mp157-pinctrl soc:pinctrl@50002000: GPIOA bank added [ 0.341625] stm32mp157-pinctrl soc:pinctrl@50002000: GPIOB bank added [ 0.342270] stm32mp157-pinctrl soc:pinctrl@50002000: GPIOC bank added [ 0.342877] stm32mp157-pinctrl soc:pinctrl@50002000: GPIOD bank added [ 0.343516] stm32mp157-pinctrl soc:pinctrl@50002000: GPIOE bank added [ 0.344127] stm32mp157-pinctrl soc:pinctrl@50002000: GPIOF bank added [ 0.344938] stm32mp157-pinctrl soc:pinctrl@50002000: GPIOG bank added [ 0.345683] stm32mp157-pinctrl soc:pinctrl@50002000: GPIOH bank added [ 0.346348] stm32mp157-pinctrl soc:pinctrl@50002000: GPIOI bank added [ 0.346769] stm32mp157-pinctrl soc:pinctrl@50002000: Pinctrl STM32 initialized [ 0.349734] stm32mp157-pinctrl soc:pinctrl@54004000: GPIOZ bank added [ 0.349779] stm32mp157-pinctrl soc:pinctrl@54004000: Pinctrl STM32 initialized [ 0.351746] stm32-usart 40010000.serial: interrupt mode for rx (no dma) [ 0.351766] stm32-usart 40010000.serial: interrupt mode for tx (no dma) [ 0.351796] 40010000.serial: ttySTM0 at MMIO 0x40010000 (irq = 49, base_baud = 4000000) is a stm32-usart [ 1.612603] printk: console [ttySTM0] enabled [ 1.622587] stm32-dwmac 5800a000.ethernet: IRQ eth_lpi not found [ 1.628236] stm32-dwmac 5800a000.ethernet: User ID: 0x40, Synopsys ID: 0x42 [ 1.634138] stm32-dwmac 5800a000.ethernet: DWMAC4/5 [ 1.639184] stm32-dwmac 5800a000.ethernet: DMA HW capability register supported [ 1.646566] stm32-dwmac 5800a000.ethernet: RX Checksum Offload Engine supported [ 1.653745] stm32-dwmac 5800a000.ethernet: TX Checksum insertion supported [ 1.660636] stm32-dwmac 5800a000.ethernet: Wake-Up On Lan supported [ 1.667046] stm32-dwmac 5800a000.ethernet: TSO supported [ 1.672209] stm32-dwmac 5800a000.ethernet: Enable RX Mitigation via HW Watchdog Timer [ 1.680011] stm32-dwmac 5800a000.ethernet: Enabled L3L4 Flow TC (entries=2) [ 1.687002] stm32-dwmac 5800a000.ethernet: Enabled RFS Flow TC (entries=10) [ 1.693881] stm32-dwmac 5800a000.ethernet: TSO feature enabled [ 1.699797] stm32-dwmac 5800a000.ethernet: Using 32/32 bits DMA host/device width [ 1.715631] stm32_rtc 5c004000.rtc: registered as rtc0 [ 1.719442] stm32_rtc 5c004000.rtc: setting system clock to 2000-01-01T00:00:09 UTC (946684809) [ 1.728487] stm32_rtc 5c004000.rtc: Date/Time must be initialized [ 1.734178] stm32_rtc 5c004000.rtc: registered rev:1.2 [ 1.758673] i2c 0-004a: Fixed dependency cycle(s) with /soc/etzpc@5c007000/sai@4400b000/audio-controller@4400b024 [ 1.767726] i2c 0-004a: Fixed dependency cycle(s) with /soc/etzpc@5c007000/sai@4400b000/audio-controller@4400b004 [ 1.778509] stm32f7-i2c 40012000.i2c: STM32F7 I2C-0 bus adapter [ 1.806586] stpmic1 1-0033: PMIC Chip Version: 0x21 [ 1.851117] stpmic1-regulator 5c002000.i2c:stpmic@33:regulators: Failed to create device link (0x180) with 1-0033 [ 1.860153] stpmic1-regulator 5c002000.i2c:stpmic@33:regulators: Failed to create device link (0x180) with 1-0033 [ 1.870292] stpmic1-regulator 5c002000.i2c:stpmic@33:regulators: Failed to create device link (0x180) with 1-0033 [ 1.880519] stpmic1-regulator 5c002000.i2c:stpmic@33:regulators: Failed to create device link (0x180) with 1-0033 [ 1.890845] stpmic1-regulator 5c002000.i2c:stpmic@33:regulators: Failed to create device link (0x180) with 1-0033 [ 1.901066] stpmic1-regulator 5c002000.i2c:stpmic@33:regulators: Failed to create device link (0x180) with 1-0033 [ 1.911287] stpmic1-regulator 5c002000.i2c:stpmic@33:regulators: Failed to create device link (0x180) with 1-0033 [ 1.921636] stpmic1-regulator 5c002000.i2c:stpmic@33:regulators: Failed to create device link (0x180) with 1-0033 [ 1.932250] stm32f7-i2c 5c002000.i2c: STM32F7 I2C-1 bus adapter [ 1.941391] mmci-pl18x 58005000.mmc: Got CD GPIO [ 1.945586] mmci-pl18x 58005000.mmc: mmc0: PL180 manf 53 rev2 at 0x58005000 irq 66,0 (pio) [ 1.990442] stm32-ipcc 4c001000.mailbox: ipcc rev:1.0 enabled, 6 chans, proc 0 [ 2.000654] stm32-rproc 10000000.m4: wdg irq registered [ 2.007928] remoteproc remoteproc0: m4 is available [ 2.022911] i2c i2c-0: Added multiplexed i2c bus 2 [ 2.029264] input: pmic_onkey as /devices/platform/soc/5c007000.etzpc/5c002000.i2c/i2c-1/1-0033/5c002000.i2c:stpmic@33:onkey/input/input0 [ 2.043973] stm32-usbphyc 5a006000.usbphyc: registered rev:1.0 [ 2.053721] [drm] Initialized stm 1.0.0 20170330 for 5a001000.display-controller on minor 0 [ 2.062124] dwc2 49000000.usb-otg: supply vusb_d not found, using dummy regulator [ 2.068636] dwc2 49000000.usb-otg: supply vusb_a not found, using dummy regulator [ 2.120154] mmc0: new high speed SDHC card at address 9773 [ 2.126288] mmcblk0: mmc0:9773 SD08G 7.42 GiB [ 2.141722] GPT:Primary header thinks Alt. header is not at the end of the disk. [ 2.147880] GPT:10485759 != 15564799 [ 2.151363] GPT:Alternate GPT header not at the end of the disk. [ 2.157398] GPT:10485759 != 15564799 [ 2.160873] GPT: Use GNU Parted to correct GPT errors. [ 2.166259] mmcblk0: p1 p2 p3 p4 p5 p6 p7 p8 p9 p10 p11 [ 2.215038] dwc2 49000000.usb-otg: EPs: 9, dedicated fifos, 952 entries in SPRAM [ 2.222617] dwc2 49000000.usb-otg: DWC OTG Controller [ 2.226508] dwc2 49000000.usb-otg: new USB bus registered, assigned bus number 1 [ 2.233720] dwc2 49000000.usb-otg: irq 76, io mem 0x49000000 [ 2.240869] hub 1-0:1.0: USB hub found [ 2.243288] hub 1-0:1.0: 1 port detected [ 2.250431] ehci-platform 5800d000.usb: EHCI Host Controller [ 2.254816] ehci-platform 5800d000.usb: new USB bus registered, assigned bus number 2 [ 2.264159] ehci-platform 5800d000.usb: irq 77, io mem 0x5800d000 [ 2.304686] ehci-platform 5800d000.usb: USB 2.0 started, EHCI 1.00 [ 2.311686] hub 2-0:1.0: USB hub found [ 2.314165] hub 2-0:1.0: 2 ports detected [ 2.604698] usb 2-1: new high-speed USB device number 2 using ehci-platform [ 2.604831] EXT4-fs (mmcblk0p10): mounted filesystem with ordered data mode. Quota mode: disabled. [ 2.619648] VFS: Mounted root (ext4 filesystem) on device 179:10. [ 2.627016] devtmpfs: mounted [ 2.630495] Freeing unused kernel image (initmem) memory: 1024K [ 2.665298] Run /sbin/init as init process INIT: version 3.04 booting [ 2.826938] hub 2-1:1.0: USB hub found [ 2.829569] hub 2-1:1.0: 4 ports detected Starting udev [ 3.247488] udevd[121]: starting version 3.2.11 [ 3.293417] udevd[122]: starting eudev-3.2.11 [ 4.011962] EXT4-fs (mmcblk0p10): re-mounted. Quota mode: disabled. Fri Mar 9 12:34:56 UTC 2018 INIT: Entering runlevel: 5 Configuring network interfaces... [ 6.703557] stm32-dwmac 5800a000.ethernet eth0: Register MEM_TYPE_PAGE_POOL RxQ-0 [ 6.824718] stm32-dwmac 5800a000.ethernet eth0: PHY [stmmac-0:00] driver [RTL8211F Gigabit Ethernet] (irq=POLL) [ 6.843500] dwmac4: Master AXI performs any burst length [ 6.847712] stm32-dwmac 5800a000.ethernet eth0: No Safety Features support found [ 6.855078] stm32-dwmac 5800a000.ethernet eth0: IEEE 1588-2008 Advanced Timestamp supported [ 6.863609] stm32-dwmac 5800a000.ethernet eth0: registered PTP clock [ 6.872784] stm32-dwmac 5800a000.ethernet eth0: configuring for phy/rgmii-id link mode udhcpc: started, v1.36.1 udhcpc: broadcasting discover udhcpc: broadcasting discover [ 11.120036] stm32-dwmac 5800a000.ethernet eth0: Link is Up - 1Gbps/Full - flow control rx/tx [ 11.127223] IPv6: ADDRCONF(NETDEV_CHANGE): eth0: link becomes ready udhcpc: broadcasting discover udhcpc: broadcasting select for 192.168.0.251, server 192.168.0.177 udhcpc: lease of 192.168.0.251 obtained from 192.168.0.177, lease time 86400 /etc/udhcpc.d/50default: Adding DNS 192.168.0.177 /etc/udhcpc.d/50default: Adding DNS 194.168.4.100 /etc/udhcpc.d/50default: Adding DNS 194.168.8.100 done. Starting syslogd/klogd: done Poky (Yocto Project Reference Distro) 4.2.2 stm32mp1 /dev/ttySTM0 stm32mp1 login:
It appears that the power controller is probed before the I2C interface is online and consequently it doesn't work
Extra
Add package-management to extra features to gain access to RPM or dpkg/apt in local.conf
EXTRA_IMAGE_FEATURES ?= "debug-tweaks package-management"
Package format defaults to RPM but can be changed to deb.
Rebuild and boot new image.
Copy any RPM packages to host for installation when required.
Eg.
scp e2fsprogs-resize2fs-1.47.0-r0.cortexa7t2hf_neon_vfpv4.rpm root@stm32mp1:
Install package with RPM
rpm -i e2fsprogs-resize2fs-1.47.0-r0.cortexa7t2hf_neon_vfpv4.rpm
Use resize2fs, for example, to resize the root partition.
Before
df -h / Filesystem Size Used Avail Use% Mounted on /dev/root 244M 115M 112M 51% /
Resize
resize2fs /dev/mmcblk0p10 resize2fs 1.47.0 (5-Feb-2023) Filesystem at /dev/mmcblk0p10 is mounted on /; on-line resizing required old_desc_blocks = 3, new_desc_blocks = 32 The filesystem on /dev/mmcblk0p10 is now 4194304 (1k) blocks long.
After
df -h / Filesystem Size Used Avail Use% Mounted on /dev/root 3.8G 115M 3.5G 4% /
Compatibility
Binaries for the RPi have been tested to run on the STM32MP1 but may have missing libraries.