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PROCESSOR-SDK-AM64X: AM64x tiboot3.bin rebuild without encryption

Nandan Chaturbhuj
Prodigy 40 points

Part Number: PROCESSOR-SDK-AM64X

Hello,

I am using AM64x RTOS SDK 09.01.

It comes with prebuild tiboot3.bin which is actually sbl_null.release.hs_fs.tiimage.

The build step includes -

$(BOOTIMAGE_CERT_GEN_CMD) --swrv 1 --sbl-bin $(BOOTIMAGE_PATH)/$(BOOTIMAGE_BIN_NAME) --sysfw-bin $(SYSFW_PATH)/sysfw-hs-fs-enc.bin --sysfw-inner-cert $(SYSFW_PATH)/sysfw-hs-fs-enc-cert.bin --boardcfg-blob $(BOARDCFG_BLOB) --sbl-loadaddr $(SBL_RUN_ADDRESS) --sysfw-loadaddr $(SYSFW_LOAD_ADDR) --bcfg-loadaddr $(BOARDCFG_LOAD_ADDR) --key $(BOOTIMAGE_CERT_KEY) --rom-image $(BOOTIMAGE_PATH)/$(BOOTIMAGE_NAME)
Few of ingredients are sysfw-hs-fs-enc.bin, sysfw-hs-fs-enc-cert.bin and $(BOOTIMAGE_CERT_KEY)

How can I build the same without any encryption ?

Best regards,

Nandan Chaturbhuj

  • 0
    TI__Guru* 89041 points

    Hi Nandan,

    Nandan Chaturbhuj said:
    Few of ingredients are sysfw-hs-fs-enc.bin, sysfw-hs-fs-enc-cert.bin and $(BOOTIMAGE_CERT_KEY)

    These are System Firmware binaries which are provided as blobs in the SDK and are consumed as it is. So, it is not possible to change these.

    In tiboot3.bin, the only user controlled binary is SBL binary (--sbl-bin). For HSFS device builds, which you are using here, the SBL binary is not encrypted.

    Regards,

    Prashant