Spi Dma data receive in am3703.

Ratnesh Zinzuwadia

Hi, I am trying to use dma in spi interface as slave.

And driver is able to communicate with host inn 3.8 kernel

But not able to run in 3.12 kernel.

Its stuck at wait_for_completion(&rsbd->dma_rx_completion) function in read routine.

please help me.

0 Miroslav Kiradzhiyski XID over 12 years ago

Hi,

I'm not familiar with the AM37x devices and software, but is the SPI module properly initialized? Have you tried if it works without using DMA?

Best regards,
Miroslav

0 Ratnesh Zinzuwadia over 12 years ago in reply to Miroslav Kiradzhiyski XID

I am able to work without DMA on my board. And I have checked DMA code on 3.8 kernel with same board and its working.

But in 3.12 kernel, callback function is not execute after data receive.

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