Re: [U-Boot] [PATH V3] usb: dwc2: invalidate the dcache before starting the DMA

On 04/06/2017 05:37 AM, Eddie Cai wrote:

We should invalidate the dcache before starting the DMA. In case there are any dirty lines from the DMA buffer in the cache, subsequent cache-line replacements may corrupt the buffer in memory while the DMA is still going on. Cache-line replacement can happen if the CPU tries to bring some other memory locations into the cache while the DMA is going on.

Signed-off-by: Eddie Cai eddie.cai.linux@gmail.com Reviewed-by: Stefan Brüns stefan.bruens@rwth-aachen.de

Applied, thanks.