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Nand controller v5.0 and v6.0 have nand edu blocks that enable dma nand flash transfers. This allows for faster read and write access. Signed-off-by: Kamal Dasu <kdasu.kdev@gmail.com> Acked-by: Paul Burton <paulburton@kernel.org> Reviewed-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com> Link: https://lore.kernel.org/linux-mtd/20200122213313.35820-3-kdasu.kdev@gmail.com