TftpStart should support starting either a get or a put. Signed-off-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Luca Ceresoli <luca.ceresoli@comelit.it> Cc: Wolfgang Denk <wd@denx.de> Acked-by: Detlev Zundel <dzu@denx.de>