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Using ArmTF-Test SP/SPD with Juno

Shengye Wan

Hi experts  ,

I configured my Juno board as this instruction and my workspace is initialized by the script from that page too.

Now I met some unknown issues when setting secure timer for my board. I find the ARM-TF provides a test secure payload and they utilize the secure timer so I want to try this payload to confirm my board's timer works well.

In this case, I'm wondering can I still use the workspace I got to build the TSP for Juno board?

If I can, could you please give me some hints about how to modify the build scripts? If I can't, is there any other instructions about applying the TSP on Juno?

Thank you in advance.

Simon

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  • 0 Arm Employee Badge in reply to Shengye Wan

    Hi Simon,

    I think it would be wise to take this to a private case: please can you send an email to juno-support@arm.com and I'll pick it up.

    Please do keep in mind, though, that this is starting to fall out of scope of what we officially support and so I may be limited in how much I can help you.

  • +1 Arm Employee Badge in reply to Ash Wilding

    Hi Simon,

    The problem you are experiencing is due to the recent changes to the way the deliverables communicate with the SCP - via SCMI rather than SCPI (see the Release Notes).

    To fix this you need to build Trusted Firmware with the `CSS_USE_SCMI_SDS_DRIVER=1' flag set, i.e.:

        CROSS_COMPILE=../gcc/bin/aarch64-linux-gnu- \
            make PLAT=juno DEBUG=1 LOG_LEVEL=40 \
            BL33=../out/SOFTWARE/bl33-uboot.bin \
            SCP_BL2=../out/SOFTWARE/scp_bl2.bin \
            CSS_USE_SCMI_SDS_DRIVER=1 \
            SPD=tspd \
            all fip

    This will let you successfully boot when using the Linaro Release 17.07 board files.

    To see the TSP output, attach an RS232 10-pin to DB9 connector to the J55 header on your Juno:

    The UART uses the same 115200 8N1 setup as the main UARTs on the back of the board. You should see messages like this printed there:

        INFO: TSP: cpu 0x80000100: 340 smcs, 340 erets 170 cpu suspend requests
        INFO: TSP: cpu 0x80000100 resumed. maximum off power level 1
        INFO: TSP: cpu 0x80000100: 341 smcs, 341 erets 170 cpu suspend requests
        INFO: TSP: cpu 0x80000100: 342 smcs, 342 erets 171 cpu suspend requests
        INFO: TSP: cpu 0x80000100 resumed. maximum off power level 1
        INFO: TSP: cpu 0x80000100: 343 smcs, 343 erets 171 cpu suspend requests
        INFO: TSP: cpu 0x80000100: 344 smcs, 344 erets 172 cpu suspend requests
        INFO: TSP: cpu 0x80000100 resumed. maximum off power level 1
        INFO: TSP: cpu 0x80000100: 345 smcs, 345 erets 172 cpu suspend requests
        INFO: TSP: cpu 0x80000100: 346 smcs, 346 erets 173 cpu suspend requests
        INFO: TSP: cpu 0x80000100 resumed. maximum off power level 1
        INFO: TSP: cpu 0x80000100: 347 smcs, 347 erets 173 cpu suspend requests
        INFO: TSP: cpu 0x80000100: 348 smcs, 348 erets 174 cpu suspend requests

    Hope that helps,
    Ash.

  • 0 in reply to Ash Wilding

    Thank you very much, Ash! I think I can get the correct output now. I'm sorry that I don't see the last message about sending email to the support team. Have a good day.

  • 0 Arm Employee Badge in reply to Shengye Wan

    No problem at all, glad to be of help :)