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TDA2SX: [TDA2SX] How to disable dsp and eve cores?

lijie yang
Prodigy 45 points
Part Number: TDA2SX
Other Parts Discussed in Thread: DRA742

Hi experts:

1. My avm project does not use dsp and eve core，I want to boot the system without loading these two cores, How should I modify it?

2. Also, DSP and EVE cores take up a lot of memory, We don't have enough memory, So I want to disable dsp and eve core.

Please guide me

Thanks a lot ~

  • 0
    TI__Guru 50045 points

    Hi,

    Are you using TI SDK as your reference?

    You can keep DSP and EVE cores disabled in bootloader and you don't have to reserve memory for DSP and EVE core.

  • 0 in reply to Stanley Liu
    Prodigy 45 points

    Hi expert:

    -->Are you using TI SDK as your reference?

    Does the reference document refer to this document? 《VisionSDK_UserGuide_MemoryMap.pdf》，There are no steps for disable dsp and eve cores in this document.

    -->You can keep DSP and EVE cores disabled in bootloader and you don't have to reserve memory for DSP and EVE core.

    Can you provide a modification patch?

    Below is the log for allocating memory to the dsp core,The system reserves 32MB memory for the DSP.

    Thanks a lot ~

    [ 0.000000] Linux version 4.4.84+ (yanglijie@server) (gcc version 5.3.1 20160113 (Linaro GCC 5.3-2016.02) ) #3 SMP PREEMPT Wed Nov 8 16:32:30 CST 2023
    [ 0.000000] CPU: ARMv7 Processor [412fc0f2] revision 2 (ARMv7), cr=30c5387d
    [ 0.000000] CPU: PIPT / VIPT nonaliasing data cache, PIPT instruction cache
    [ 0.000000] Machine model: TI DRA742
    [ 0.000000] Reserved memory: created DMA memory pool at 0x0000000040300000, size 3 MiB
    [ 0.000000] Reserved memory: initialized node cmem@40300000, compatible id shared-dma-pool
    [ 0.000000] Reserved memory: regions without no-map are not yet supported
    [ 0.000000] Reserved memory: created CMA memory pool at 0x0000000099000000, size 32 MiB
    [ 0.000000] Reserved memory: initialized node ipu2_cma@95800000, compatible id shared-dma-pool
    [ 0.000000] Reserved memory: created CMA memory pool at 0x000000009b000000, size 16 MiB
    [ 0.000000] Reserved memory: initialized node dsp1_cma@99000000, compatible id shared-dma-pool
    [ 0.000000] Reserved memory: created CMA memory pool at 0x000000009c000000, size 16 MiB
    [ 0.000000] Reserved memory: initialized node dsp2_cma@9f000000, compatible id shared-dma-pool
    [ 0.000000] Reserved memory: regions without no-map are not yet supported
    [ 0.000000] Reserved memory: created DMA memory pool at 0x000000009d200000, size 32 MiB
    [ 0.000000] Reserved memory: initialized node cmem@9D200000, compatible id shared-dma-pool
    [ 0.000000] Reserved memory: regions without no-map are not yet supported
    [ 0.000000] cma: Reserved 24 MiB at 0x0000000097800000

  • 0 in reply to lijie yang
    TI__Guru 50045 points

    Please refer to the 

    ~/PSDK_03_08/vision_sdk/docs/FeatureSpecificUserGuides/VisionSDK_UserGuide_BuildSystem.pdf

    ~/PSDK_03_08/vision_sdk/docs/FeatureSpecificUserGuides/VisionSDK_DevelopmentGuide.pdf

    ~/PSDK_03_08/vision_sdk/docs/Linux/VisionSDK_Linux_DevelopmentGuide.pdf

    Regards,

    Stanley