[+ Frieder and Boris]
Hi,
Am 2022-12-19 21:09, schrieb Han Xu:
On 22/12/19 02:08PM, Fabio Estevam wrote:
Hi,
Currently, there is no DMA support for the drivers/spi/spi-nxp-fspi.c
driver.
Is there a technical reason that prevents DMA to be used on this
driver with the i.MX8MM?
Also checked the NXP vendor driver, but DMA support is also missing.
Does anyone know more about the reason for this?
flexspi is a copy of the spi-fsl-qspi driver and I'd say the
latter just got the basic operations polled IO or the memory
mapped access and nobody cared :)
We are working on that, both flexspi driver and sdma driver need to be
updated,
and will upstream all once done.
Are you also working on the DMA support for the layerscape
architecture which is using eDMA?
-michael
