OSD32MP15x custom device tree

Forums Devices OSD32MP15x OSD32MP15x custom device tree

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    • #10376
      Tobias ScholzTobias
      Participant

        Hello I try to create my own device tree files based on this tutorial:
        https://octavosystems.com/octavosystems.com/wp-content/uploads/2019/06/STM32MP1-CubeMX-Tutorial-for-OSD32MP15x.pdf

        After downloading the source files and copying the STM32CubeMX dts/dtsi files I tried this command:
        “make -f $PWD/../Makefile.sdk all DEVICE_TREE=stm32mp157c-osd32mp157c-512m-baa_minimalconfig-mx”
        with and without the ” around the name.

        But the compilation fails with following:
        Device Tree Source is not correctly specified.
        Please define ‘CONFIG_DEFAULT_DEVICE_TREE’
        or build with ‘DEVICE_TREE=’ argument

        make[3]: *** [/home/akira/Downloads/stm32mp1-openstlinux-5.4-dunfell-mp1-20-06-24/sources/arm-ostl-linux-gnueabi/u-boot-stm32mp-2020.01-r0/u-boot-stm32mp-2020.01/dts/Makefile:28: arch/arm/dts/stm32mp157c-osd32mp157c-512m-baa_minimalconfig-mx.dtb] Error 1
        make[2]: *** [/home/akira/Downloads/stm32mp1-openstlinux-5.4-dunfell-mp1-20-06-24/sources/arm-ostl-linux-gnueabi/u-boot-stm32mp-2020.01-r0/u-boot-stm32mp-2020.01/Makefile:1087: dts/dt.dtb] Error 2
        make[2]: Leaving directory ‘/home/akira/Downloads/stm32mp1-openstlinux-5.4-dunfell-mp1-20-06-24/sources/arm-ostl-linux-gnueabi/u-boot-stm32mp-2020.01-r0/build-basic’
        make[1]: *** [Makefile:167: sub-make] Error 2
        make[1]: Leaving directory ‘/home/akira/Downloads/stm32mp1-openstlinux-5.4-dunfell-mp1-20-06-24/sources/arm-ostl-linux-gnueabi/u-boot-stm32mp-2020.01-r0/u-boot-stm32mp-2020.01’
        cp: cannot stat ‘/home/akira/Downloads/stm32mp1-openstlinux-5.4-dunfell-mp1-20-06-24/sources/arm-ostl-linux-gnueabi/u-boot-stm32mp-2020.01-r0/u-boot-stm32mp-2020.01/../build-basic/u-boot.img’: No such file or directory

         

        Compiling the stm32mp157c-dk2 files is working so I am pretty sure it is a configuration and no tool problem.
        What am I missing?

      • #10379
        Neeraj Kumar Reddy DantuNeeraj Dantu
        Moderator

          Hey Tobias,

          The tutorial describes the procedure for OpenST Linux v1.1/1.2. The application note needs to be updated to use v2.0. Until then, we suggest you use v1.2 for your development if you want to follow the application note. You can also make the developer package compile your device tree a different way:

          1. Add the target file dtb name to <u-boot directory>/arch/arm/dts/Makefile

          2. Add target board name to DEVICE_TREE variable in $PWD/../Makefile.sdk

          You should not have to add the target board device tree name to the make command if you do the above.

          Best,

          Neeraj

        • #10383
          Tobias ScholzTobias
          Participant

            Thank you so far this part of starting a customized linux and fsbl is working now.

            Next part I am troubling with is getting the tf-a compiled with current SDK.
            After adding the dts/dtsi files from CubeMX to the TFA-SOURCE/fdts dir and appending
            “stm32mp157c-osd32mp157c-512m-baa_minimalconfig-mx” to the Makefile.sdk TFA_DEVICETREE variable I get:
            fdts/stm32mp157c-osd32mp157c-512m-baa_minimalconfig-mx.dts:21:10: fatal error: dt-bindings/power/stm32mp1-power.h: No such file or directory
            21 | #include <dt-bindings/power/stm32mp1-power.h>

            There is a debug-tf-a-stm32mp157c-osd32mp157c-512m-baa_minimalconfig-mx-trusted.stm32 file in ../build-trusted/ folder but I miss the release file and I am not sure neither the error “can be ignored” nor how to fix it.

            Is there any solution not downgrading the SDK and sources?

          • #10464
            Neeraj Kumar Reddy DantuNeeraj Dantu
            Moderator

              Tobias,

              Please check on your version of the CubeMX software you are using. CubeMX version 5.6 is not compatible with the developer package 2.0. Version 6.0 works with the new developer package.

              Best,

              Neeraj

            • #10468
              Michael CoderCoder
              Participant

                The tutorial describes the procedure for OpenST Linux v1.1/1.2. The application note needs to be updated to use v2.0. Until then, we suggest you use v1.2 for your development if you want to follow the application note. 

                In section 5.1 of the ST Developer Wiki Page it has a link to en.SDK-x86_64-stm32mp1-openstlinux-5.4-dunfell-mp1-20-06-24.tar.xz. Is this the correct SDK for 1.2? Because 20-06-24 is associated with 2.0 and 20-02-19 with 1.2, but I can’t find a link for the SDK at version 1.2.

              • #10469
                Michael CoderCoder
                Participant
                • #10470
                  Tobias ScholzTobias
                  Participant

                    On the ST Download area there is an ComboBox where you can select the version if you don’t want the current version.

                  • #10471
                    Tobias ScholzTobias
                    Participant

                      I upgraded my CubeMX to version 6 today.
                      Now I can compile everything and it is working with the exception of “das U-Boot”.
                      If I write my new stm32 file to partition 3 I got the u-boot output:

                      CPU: STM32MP157CAC Rev.B
                      Model: STMicroelectronics STM32MP157C eval daughter on eval mother
                      Board: stm32mp1 in trusted mode (st,stm32mp157c-ev1) !!!why ev1 I double checked I selected dk2 in CubeMx?
                      Board: MB1272 Var2 Rec.C-01
                      DRAM: ERROR: Illegal access to 0xfdafffb0 in:
                      ERROR: Non-Secure
                      ERROR: Privilege
                      ERROR: Read
                      PANIC at PC: 0x2ffefeb5

                      Exception mode=0x00000016 at: 0xfffffffc

                      I do not know why I am getting an error corresponding to ev1 board and not dk2 board which I selected as a basis in CubeMX.
                      Also I just selected the default values and just exported the dts and dtsi files.
                      Are there any ideas what I did wrong and more important how to fix this?

                    • #10485
                      Neeraj Kumar Reddy DantuNeeraj Dantu
                      Moderator

                        Tobias,

                        Please check the binary file you are flashing for u-boot. From the boot log, it looks like you are using the EV1 binary file and not the board specific one you have created. The U-boot SDK does build multiple binaries for multiple boards based on the configuration in Makefile.sdk.

                        Please also check the board name printed on the output of the FSBL(First stage bootloader) to be the DK-2 and not EV-1. If it is not what you expect, you may not have flashed the right FSBL as well.

                        Also make sure you have 2 partitions (ssbl1 and ssbl2) programmed with the u-boot you generated.

                        Best,

                        Neeraj

                      • #10489
                        Michael CoderCoder
                        Participant

                          Tobias, the name of my dts file from CubeMX is stm32mp157c-osd32mp1-mx.dts. I use that for the TFA_DEVICETREE in the make command:

                          Under /tf-a-stm32mp-2.2.r1-r0/tf-a-stm32mp-2.2.r1/build/trusted I then get tf-a-stm32mp157c-osd32mp1-mx-trusted.stm32. And use that in the tsv file to flash:

                          I am still getting an error when flashing though:

                          Error: Start operation failed at partition 0x01

                          Error: TSV flashing service failed

                        • #10495
                          Neeraj Kumar Reddy DantuNeeraj Dantu
                          Moderator

                            Coder,

                            A couple of things you can try from this thread: https://community.st.com/s/question/0D50X0000B6PIH1/stm32mp157cdk2-flash-didnt-work

                            1. Use the Windows GUI programmer

                            2. Add timeout to the programmer command

                            You could also use ‘dd’ to flash individual partitions on to the SD card.

                            Can you verify the USB connection between the computer and the target board?

                            Best,

                            Neeraj

                             

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