Hello, > My apologies for the confusion. > Slave DMA terminology used in cadence nand controller bindings and > driver is indeed confusing. > > To answer your question it is, > 1 - External DMA (Generic DMA controller). > > Nand controller IP do not have embedded DMA controller (2 - peripheral DMA). > > FYR, how external DMA is used. > https://elixir.bootlin.com/linux/v6.13.1/source/drivers/mtd/nand/raw/cadence-nand-controller.c#L1962 In this case we should have a dmas property (and perhaps dma-names), no? Miquèl
