AM5728: Am5728 ipc between dsp and A15 causing mmufault

Manjunath Basappa Bentur

Prodigy 10 points

Part Number: AM5728

Hi Champs,

I am new to TI sitara processors. I am currently trying to get ex02messageq for ipc communication between dsp and linux in Am5728 [I am using TQ starter kit, kernel 5.14.43 from TQ]. I am not able to get the example up and running :( Pleasecould you share some insights on this.

Here is the error below:

[ 2187.212749] 000: remoteproc6#vdev0buffer: assigned reserved memory node dsp1_cma@99000000

[ 2187.214270] 000: virtio_rpmsg_bus virtio0: rpmsg host is online

[ 2187.214335] 000: remoteproc6#vdev0buffer: registered virtio0 (type 7)

[ 2187.214345] 000: remoteproc remoteproc6: remote processor 40800000.dsp is now up

[ 2187.216344] 000: omap-iommu 40d01000.mmu: iommu fault: da 0x95ffffc0 flags 0x0

[ 2187.216356] 000: remoteproc remoteproc6: crash detected in 40800000.dsp: type mmufault

[ 2187.216365] 000: omap-iommu 40d01000.mmu: 40d01000.mmu: errs:0x00000002 da:0x95ffffc0 pgd:0x8ad8b37b *pgd:px00000000

over 3 years ago

0 Suman Anna over 3 years ago

TI__Guru** 112335 points

Hi Manjunath,

TQ Starter Kit looks to be a third-party platform, are you picking up software from them, or trying to build and use firmwares from a TI SDK?

If so, what SDK version are you using exactly?

regards

Suman

0 Manjunath Basappa Bentur over 3 years ago in reply to Suman Anna

Prodigy 10 points

Hi Suman, Thank you for your support, actually I succeeded getting the application running. My carve outs were wrong...and had to adjust them according to my dts files. Now it is working fine.. :)

0 Suman Anna over 3 years ago in reply to Manjunath Basappa Bentur

TI__Guru** 112335 points

Hi Manjunath,

Good to hear that this issue is resolved.

regards

Suman

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AM5728: Am5728 ipc between dsp and A15 causing mmufault