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PROCESSOR-SDK-J7200: SBL source code SECURE_BOOT was not enabled.

Zishuo Wang
Intellectual 260 points
Part Number: PROCESSOR-SDK-J7200

Using RTOS SDK 8.1 of J7200-evm. I am tring to compile the SBL source code with secure-boot feature enabled.

The commands that I used were:

copy the private key to directory:  ti-processor-sdk-rtos-j7200-evm-08_01_00_11/pdk_j7200_08_01_00_33/packages/ti/build/makerules/k3_dev_mpk.pem

1. make BOARD=j7200_evm CORE=mcu1_0 BUILD_PROFILE=release pdk_libs_clean -j8
2. make sciclient_boardcfg BOARD-j7200_evm BUILD_HS=yes -j8
3. make BOARD=j7200_evm CORE=mcu1_0 BUILD_PROFILE=release pdk_libs -j8
4. make -j8 BOARD=j7200_evm CORE=mcu1_0 BUILD_PROFILE=release sbl_mmcsd_img_hs

However, as I was inspecting the code, I found of the SBL authentication was dependent on the variable SECURE_BOOT to be enabled. 

Then I further traced down the compliation process, the command was executed by the makefile, which I modified a little to save the intermediate output, sbl_mmcsd_oer5f.cc

 

Then I found out that the SECURE_BOOT variable was not defined/enabled.

Is there some options of the makefile that I was not using? or is there something missing with the current SDK?

Please help me with the correct compliation method of the SBL with secure_boot.

Thank you

BR,

Kelvin Wang

Kelvin

  • 0
    TI__Guru**** 475275 points

    Hi Kevin,

    This macro does not require to be defined. You just need to sign the binary with your key, and that will be taken care when you use sbl_mmcsd_img_hs build variable. 

    For SBL, it will check if the authentication is required in the SBL_VerifyMulticoreImage API, and then authenticates the image.. 

    Regards,

    Brijesh