title: Copying files to mmc device from bootmenu
body: <p>I want to copy files to mmc device over the network using TFTP.</p>
  <p>I know that we can switch to the mmc device using <strong>&quot;mmc dev&quot;</strong> command at U-boot prompt. After switching to the mmc device, I need to copy the files to the mmc device over the network using tftp from U-bot prompt.</p>