Re: [U-Boot] [PATCH 3/3] mtd: nand: mxs invalidate dcache before DMA read

Hi Marek, On Mon, Jul 20, 2015 at 09:27:35PM +0200, Marek Vasut wrote:

On Monday, July 20, 2015 at 11:40:22 AM, Peng Fan wrote:

...

Follow linux dma follow:

Nit: "flow" at the end, not "follow" ;-)

Thanks. Do you have a chance to review this patch, https://patchwork.ozlabs.org/patch/497619/ ?

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Before DMA read, be sure to invalidate the cache over the address range of DMA buffer to prevent cache coherency problems. After DMA read, invalidate dcache again.

Signed-off-by: Peng Fan Peng.Fan@freescale.com

Acked-by: Marek Vasut marex@denx.de

Best regards, Marek Vasut

Thanks, Peng --