
It has been noticed, that sometimes the d-cache is not in a "clean-state" when U-Boot is running on MT7688. This was detected when using the ethernet driver (which uses d-cache) and a TFTP command does not complete. Flushing the complete d-cache (again?) here seems to fix this issue. Signed-off-by: Stefan Roese <sr@denx.de> Cc: Daniel Schwierzeck <daniel.schwierzeck@gmail.com>