i.MX6SoloX uSDHC DMA access to TCML or OCRAM

[davidjaouen]

Hi,

I'm porting the MQX 4.2 uSDHC driver on the i.MX6SoloX and I'm having difficulties with the ADMA. Each time an ADMA2 transfer is required I get an ADMA error (0x9).

I was wondering if the uSDHC module has access to the TCML or OCRAM by default? Is there any security setting I need to do in CSU or AIPSTZ?

Regards,

David

[Yuri · Accepted solution]

Hello,

  I am afraid  the TCM cannot be used for bursts by peripheral modules of the i.MX6SX.

Please use DRAM area instead.

Also, please take a look at the following :

Can TCMU be used as buffer descriptor(BD) of ENET for CM4 core of i.MX6 SoloX?

Have a great day,
Yuri

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