Messages in this thread | | | Subject | Re: [PATCH] mtd: nand: raw: atmel: add module param to avoid using dma | From | Eugen Hristev <> | Date | Tue, 29 May 2018 18:01:40 +0300 |
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> > I think you're missing something here. We use the DMA engine in memcpy > mode (SRAM -> DRAM), not in device mode (dev -> DRAM or DRAM -> dev). > So there's no dmas prop defined in the DT and there should not be. > > Regards, > > Boris >
Ok, so the memcpy SRAM <-> DRAM will hog the transfer between DRAM and LCD if my understanding is correct. That's the DMA that Peter wants to disable with his patch ?
Then we can then try to force NFC SRAM DMA channels to use just DDR port 1 or 2 for memcpy ?
I have also received a suggestion to try to increase the porches in LCDC_LCDCFG3 .
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