Using DMA transfer data from memory to SATA

sharpjison — Mon, 11 Dec 2017 01:30:42 GMT

Hello NXP:

In kernel space, I need to use DMA to transfer a big data from DDR to SATA .

This operation is nothing to do with using space and the file system.

What can I refer to？

Have a nice day!

Thanks !

Re: Using DMA transfer data from memory to SATA

igorpadykov — Mon, 11 Dec 2017 05:05:37 GMT

Hi Sharp

sdma is supported in nxp linux for some modules and described in Chapter 4 Smart

Direct Memory Access (SDMA) API attached Linux Manual. Unfortunately there

is no such support and sdma script for sata. In general one can try to reuse approach

for pcie (IPU used as the bus master(DMA)) from link

i.MX6Q PCIe EP/RC Validation System

Best regards
igor
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topic Using DMA transfer data from memory to SATA in i.MX Processors

Using DMA transfer data from memory to SATA

Re: Using DMA transfer data from memory to SATA