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MCU-PLUS-SDK-AM243X: authentication of appimages fails on custom board fails in SBL_OSPI

Part Number: MCU-PLUS-SDK-AM243X
Other Parts Discussed in Thread: SYSCONFIG

Tool/software:

Hi TI-Team,

I have the exact same problem as described in the linked issue (https://e2e.ti.com/support/microcontrollers/arm-based-microcontrollers-group/arm-based-microcontrollers/f/arm-based-microcontrollers-forum/1349306/mcu-plus-sdk-am243x-cannot-sbl_ospi-boot-the-hs_fs-application-image-on-my-custom-board-am2431alv/5148133?tisearch=e2e-sitesearch&keymatch=%25252520user%2525253A572738#5148133)

I use SBL_OSPI, which is adjusted to my custom board (custom flash, custom DDR etc.) this works fine if the option "Disable Auth For Application Image" is unchecked. I can then load firmware files successfully. As soon as this Authentication option is checked the SBL_OSPI cannot start the flashed .appimage.hs_fs at 0x80000. If I debug I see that it fails at the same position as mentioned in the linked thread. The content of 0x60080000 is also equal

Yes, I also integrated the suggested workaround shown in various other threads, the following code fraction is inserted just before the Bootloader_parseMultiCoreAppImage(...).

            /* WORKAROUND: Enable the DAC mode */
            OSPI_Handle ospi_handle = OSPI_getHandle(CONFIG_OSPI0);
            OSPI_enableDacMode(ospi_handle);

I am currently using the MCU+ SDK delivered with the latest www.ti.com/.../09.02.00.08

I also tried to replicate on AM64x-EVM but there everything worked fine, I could start/authenticate any image given. Even my custom images using all R5-cores and now beeing bigger than 1,6 MB

Help would be highly appreciated. What is the problem? Is there a bigger bug in somewhere in MCU+ SDK and I currently need to disable authentication at all?

Kind regards,

Dominik

  • Hello,

    Could you please go through the following thread & provide relevant inputs like SYSFW logs

    https://e2e.ti.com/support/microcontrollers/arm-based-microcontrollers-group/arm-based-microcontrollers/f/908/t/1400448

    Regards,

    Prashant

  • Sorry for the late response. The mentioned thread actually is a bit difficult to follow as multiple users respondended, but I got through and instructions for Sysfw logs were clear.

    One thing: I was not able to add dump_sysfw_logs() directly after Bootloader_socAuthImage() as this is not called from SBL_OSPI but in functions from bootloader.c. The dump function is now directly called after the Bootloader_parseMultiCoreAppImage().

    Here the printed SYSFWLOGS from Debug UART, I used the function as described. If you need other format let me know.

    <<SYSFW_LOGS
    180010C
           0x61C0009C
                     0x61276CB7
                               0x61276CB7
                                         0xC20101
                                                 0xC20024
                                                         0x61800101
                                                                   0x61C0008A
                                                                             0xC20104
                                                                                     0xC20024
                                                                                             0x61800104
                                                                                                       0x61C0008A
                                                                                                                 0xC20100
                                                                                                                         0xC20024
                                                                                                                                 0x61800100
                                                                                                                                           0x61C0008A
                                                                                                                                                     0x62000000
                                                                                                                                                               0xC2010D
                                                                                                                                                                       0xC20024
                                                                                                                                                                               0x6180010D
                                                                                                                                                                                         0x61C0008A
                                                                                                                                                                                                  0x61257C83
             0xC2010C
                     0xC20024
                             0x6180010C
                                       0x61C0008A
                                                 0x61257C83
                                                           0x61257C83
                                                                     0xC20101
                                                                             0xC20024
                                                                                     0x61800101
                                                                                               0x61C0008A
                                                                                                         0xC20104
                                                                                                                 0xC20024
                                                                                                                         0x61800104
                                                                                                                                   0x61C0008A
                                                                                                                                             0xC20100
                                                                                                                                                     0xC20024
                                                                                                                                                             0x61800100
                                                                                                                                                                       0x61C0008A
                                                                                                                                                                                 0x62000000
                                                                                                                                                                                           0xC2010D
                                                                                                                                                                                                  0xC20024
           0x6180010D
                     0x61C0008A
                               0x612D7C83
                                         0xC2010C
                                                 0xC20024
                                                         0x6180010C
                                                                   0x61C0008A
                                                                             0x612D7C83
                                                                                       0x612D7C83
                                                                                                 0xC20101
                                                                                                         0xC20024
                                                                                                                 0x61800101
                                                                                                                           0x61C0008A
                                                                                                                                     0xC20104
                                                                                                                                             0xC20024
                                                                                                                                                     0x61800104
                                                                                                                                                               0x61C0008A
                                                                                                                                                                         0xC20100
                                                                                                                                                                                 0xC20024
                                                                                                                                                                                         0x61800100
                                                                                                                                                                                                  0x61C0008A
             0x62000000
                       0xC2010D
                               0xC20024
                                       0x6180010D
                                                 0x61C0008A
                                                           0x61257C83
                                                                     0xC2010C
                                                                             0xC20024
                                                                                     0x6180010C
                                                                                               0x61C0008A
                                                                                                         0x61257C83
                                                                                                                   0x61257C83
                                                                                                                             0xC20101
                                                                                                                                     0xC20024
                                                                                                                                             0x61800101
                                                                                                                                                       0x61C0008A
                                                                                                                                                                 0xC20104
                                                                                                                                                                         0xC20024
                                                                                                                                                                                 0x61800104
                                                                                                                                                                                           0x61C0008A
      0xC20100
              0xC20024
                      0x61800100
                                0x61C0008A
                                          0x62000000
                                                    0xC2010D
                                                            0xC20024
                                                                    0x6180010D
                                                                              0x61C0008A
                                                                                        0x612D7C83
                                                                                                  0xC2010C
                                                                                                          0xC20024
                                                                                                                  0x6180010C
                                                                                                                            0x61C0008A
                                                                                                                                      0x612D7C83
                                                                                                                                                0x612D7C83
                                                                                                                                                          0xC21500
                                                                                                                                                                  0xC20024
                                                                                                                                                                          0x4F4E00FF
                                                                                                                                                                                    0x4F4A001A
                                                                                                                                                                                              0x4F4B0020
         0x4F4606A0
                   0x4F4C000C
                             0x4F4D0006
                                       0x4F4F0000
                                                 0x4F500000
                                                           0xC21500
                                                                   0xC20024
                                                                           0x4F4E00FF
                                                                                     0x4F4A001A
                                                                                               0x4F4B0022
                                                                                                         0x4F4606A2
                                                                                                                   0x4F4C0006
                                                                                                                             0x4F4D0006
                                                                                                                                       0x4F4F0000
                                                                                                                                                 0x4F500000
                                                                                                                                                           0xC21500
                                                                                                                                                                   0xC20024
                                                                                                                                                                           0x4F4E00FF
                                                                                                                                                                                     0x4F4A001A
                                                                                                                                                                                               0x4F4B0021
          0x4F4606A1
                    0x4F4C0006
                              0x4F4D0006
                                        0x4F4F0000
                                                  0x4F500000
                                                            0xC21500
                                                                    0xC20024
                                                                            0x4F4E00FF
                                                                                      0x4F4A001C
                                                                                                0x4F4B000D
                                                                                                          0x4F46070D
                                                                                                                    0x4F4C0210
                                                                                                                              0x4F4D0100
                                                                                                                                        0x4F4F0000
                                                                                                                                                  0x4F500000
                                                                                                                                                            0xC21500
                                                                                                                                                                    0xC20024
                                                                                                                                                                            0x4F4E00FF
                                                                                                                                                                                      0x4F4A001C
                                                                                                                                                                                                0x4F4B000A
           0x4F46070A
                     0x4F4C002C
                               0x4F4D000E
                                         0x4F4F0000
                                                   0x4F500000
                                                             0xC21110
                                                                     0xC20024
                                                                             0x41070000
                                                                                       0x410800BF
                                                                                                 0x4F8A00FF
                                                                                                           0x4F8B0001
                                                                                                                     0x4F80001A
                                                                                                                               0x4100001A
                                                                                                                                         0x4F01000C
                                                                                                                                                   0x4F06068D
                                                                                                                                                             0x4F0A0024
                                                                                                                                                                       0x4101000C
                                                                                                                                                                                 0x410C0001
                                                                                                                                                                                           0x410D7007
      0x410E5980
                0x410F0000
                          0x41100001
                                    0x41110000
                                              0x4F8A00FF
                                                        0x4F8B0001
                                                                  0x4F80001A
                                                                            0x4100001A
                                                                                      0x4F8A00FF
                                                                                                0x4F8B0001
                                                                                                          0x4F80001A
                                                                                                                    0x4100001A
                                                                                                                              0x41070000
                                                                                                                                        0x410800BF
                                                                                                                                                  0x4F8A00FF
                                                                                                                                                            0x4F8B0001
                                                                                                                                                                      0x4F80001A
                                                                                                                                                                                0x4100001A
                                                                                                                                                                                          0xC21205
                                                                                                                                                                                                  0xC20024
           0x43870001
                     0x43887FFF
                               0x4F8A00FF
                                         0x4F8B0001
                                                   0x4F80001A
                                                             0x4380001A
                                                                       0x4F01000C
                                                                                 0x4F0606A0
                                                                                           0x4F0A0024
                                                                                                     0x4381000C
                                                                                                               0x438A0000
                                                                                                                         0x43A00000
                                                                                                                                   0x43A10000
                                                                                                                                             0x438B0000
                                                                                                                                                       0x438C000C
                                                                                                                                                                 0x43A20000
                                                                                                                                                                           0x438D0000
                                                                                                                                                                                     0x43A30000
                                                                                                                                                                                               0x43A40000
          0x438F0004
                    0x43900000
                              0x43910000
                                        0x43920001
                                                  0x439F0001
                                                            0x43A50000
                                                                      0x43A60001
                                                                                0x4F8A00FF
                                                                                          0x4F8B0001
                                                                                                    0x4F80001A
                                                                                                              0x4380001A
                                                                                                                        0xC20002
                                                                                                                                0xC20024
                                                                                                                                        0x4003007
                                                                                                                                                 0x4400927
                                                                                                                                                          0xC20201
                                                                                                                                                                  0xC20024
                                                                                                                                                                          0x61800201
                                                                                                                                                                                    0x61C00051
                                                                                                                                                                                              0xC20200
       0xC20024
               0x61800200
                         0x61C00051
                                   0x62000002
                                             0x62C0C000
                                                       0x6403C000
                                                                 0x64006004
                                                                           0x62C0C001
                                                                                     0x6080009D
                                                                                               0x6080009F
                                                                                                         0x60000051
                                                                                                                   0x6383C000
                                                                                                                             0x63806004
                                                                                                                                       0xC20202
                                                                                                                                               0xC20024
                                                                                                                                                       0x61800202
                                                                                                                                                                 0x61C00051
                                                                                                                                                                           0x62000000
                                                                                                                                                                                     0xC20101
                                                                                                                                                                                             0xC20024
      0x61800101
                0x61C00051
                          0xC20104
                                  0xC20024
                                          0x61800104
                                                    0x61C00051
                                                              0xC20103
                                                                      0xC20024
                                                                              0x61800103
                                                                                        0x61C00051
                                                                                                  0xC20100
                                                                                                          0xC20024
                                                                                                                  0x61800100
                                                                                                                            0x61C00051
                                                                                                                                      0x62000000
                                                                                                                                                0x60C0009D
                                                                                                                                                          0xC20102
                                                                                                                                                                  0xC20024
                                                                                                                                                                          0x61800102
                                                                                                                                                                                    0x61C00051
                                                                                                                                                                                              0x62000001
         0xC2010D
                 0xC20024
                         0x6180010D
                                   0x61C00051
                                             0x612B7C91
                                                       0xC2010C
                                                               0xC20024
                                                                       0x6180010C
                                                                                 0x61C00051
                                                                                           0x612B7C91
                                                                                                     0x612B7C91
                                                                                                               0xC20201
                                                                                                                       0xC20024
                                                                                                                               0x61800201
                                                                                                                                         0x61C00052
                                                                                                                                                   0xC20200
                                                                                                                                                           0xC20024
                                                                                                                                                                   0x61800200
                                                                                                                                                                             0x61C00052
                                                                                                                                                                                       0x62000002
                                                                                                                                                                                                 0x62C0E000
            0x6403E000
                      0x64006005
                                0x62C0E001
                                          0x6080009E
                                                    0x608000A0
                                                              0x60000052
                                                                        0x6383E000
                                                                                  0x63806005
                                                                                            0xC20202
                                                                                                    0xC20024
                                                                                                            0x61800202
                                                                                                                      0x61C00052
                                                                                                                                0x62000000
                                                                                                                                          0xC20101
                                                                                                                                                  0xC20024
                                                                                                                                                          0x61800101
                                                                                                                                                                    0x61C00052
                                                                                                                                                                              0xC20104
                                                                                                                                                                                      0xC20024
                                                                                                                                                                                              0x61800104
         0x61C00052
                   0xC20103
                           0xC20024
                                   0x61800103
                                             0x61C00052
                                                       0xC20100
                                                               0xC20024
                                                                       0x61800100
                                                                                 0x61C00052
                                                                                           0x62000000
                                                                                                     0x60C0009E
                                                                                                               0xC20102
                                                                                                                       0xC20024
                                                                                                                               0x61800102
                                                                                                                                         0x61C00052
                                                                                                                                                   0x62000001
                                                                                                                                                             0xC2010D
                                                                                                                                                                     0xC20024
                                                                                                                                                                             0x6180010D
                                                                                                                                                                                       0x61C00052
                                                                                                                                                                                                 0x612B7C91
            0xC2010C
                    0xC20024
                            0x6180010C
                                      0x61C00052
                                                0x612B7C91
                                                          0x612B7C91
                                                                    0xC2C120
                                                                            0xC20024
                                                                                    0x20C00003
                                                                                              0x20C00002
                                                                                                        0024
                                                                                                            0x61800103
                                                                                                                      0x61C0184B
                                                                                                                                0xC20100
                                                                                                                                        0xC20024
                                                                                                                                                0x61800100
                                                                                                                                                          0x61C0184B
                                                                                                                                                                    0x62000000
                                                                                                                                                                              0x60C000A3
                                                                                                                                                                                        0xC20102
                                                                                                                                                                                                0xC20024
         0x61800102
                   0x61C0184B
                             0x62000007
                                       0xC2010D
                                               0xC20024
                                                       0x6180010D
                                                                 0x61C0184B
                                                                           0x612B7C88
                                                                                     0xC2010C
                                                                                             0xC20024
                                                                                                     0x6180010C
                                                                                                               0x61C0184B
                                                                                                                         0x612B7C88
                                                                                                                                   0x612B7C88
                                                                                                                                             0xC20101
                                                                                                                                                     0xC20024
                                                                                                                                                             0x61800101
                                                                                                                                                                       0x61C0009C
                                                                                                                                                                                 0xC20104
                                                                                                                                                                                         0xC20024
                                                                                                                                                                                                 0x61800104
            0x61C0009C
                      0xC20103
                              0xC20024
                                      0x61800103
                                                0x61C0009C
                                                          0xC20100
                                                                  0xC20024
                                                                          0x61800100
                                                                                    0x61C0009C
                                                                                              0x62000000
                                                                                                        0x60C000BE
                                                                                                                  0x60C000B7
                                                                                                                            0xC20102
                                                                                                                                    0xC20024
                                                                                                                                            0x61800102
                                                                                                                                                      0x61C0009C
                                                                                                                                                                0x62000001
                                                                                                                                                                          0xC2010D
                                                                                                                                                                                  0xC20024
                                                                                                                                                                                          0x6180010D
     0x61C0009C
               0x61276CB7
                         0xC2010C
                                 0xC20024
                                         0x6
    SYSFW_LOGS

  • Hi Prashnat,

    I found a workaround, which currently helps me to load at least big hello world projects with signature checking activated. I modified the bootloader to take the appimage from a specified address in DDR RAM.

    1) switched the bootloader settings in Sysconfig

    2) Activated DDR (sysconfig, ddr-config header) on my custom board

    3) Added the following code in the SBL OSPI

            uint8_t* p_data_buffer = loadFromFlash(&bootParams.bufIoTempBufSize);
            bootParams.bufIoTempBuf = p_data_buffer;
            bootParams.bufIoDeviceIndex = ~0;
            bootParams.memArgsAppImageBaseAddr = (uintptr_t)p_data_buffer;
    

     

    Note: My loadFromFlash() function reads in blocks from the flash as soon as I tried to load the complete appimage at once I did not get the complete appimage in DDR, it was cut somewhere in the middle. Maybe a problem with Flash_read(…) and big read-sizes?

     

    This whole process seems to work fine for hello_world projects build in CCS. I even added a big array and bloated the hs_fs image to > 3 MB. Authentication and starting of the application/firmware still worked. Nevertheless, I am still not able to load my custom application, but I am now facing different errors, the Signature check does not fail anymore.

    ERROR: Bootloader_socCpuSetEntryPoint:908: CPU set config failed for r5f0-1Some tests have failed!!

  • Hi Dominik,

    Thank you for following up. Let me go through the results & get back to you!!

  • I think we can close this issue for now. I switched to BOOTLOADER_MEDIA_MEM and with the correct configuration and some explicitely reserved space on DDR for bootloader the issue is solved. Prashant showed how to implement with 2 Bootloader instances in this issue:

    e2e.ti.com/.../5393976