title: How u-boot bootloader reads/saves its environment Variables?
body: <ul>
  <li>How u-boot bootloader reads/saves its environment Variables ?</li>
  <li><p>How we declare address of u-boot  environment Variable section in Flash ?</p></li>
  <li><p>From description at <a href="http://www.denx.de/wiki/DULG/UBootEnvVariables">here</a> : <strong>The U-Boot environment is a block of memory that is kept on persistent storage and copied to RAM when U-Boot starts.</strong></p></li>
  </ul>
  
  <p>What's meaning of " <em>copied to RAM</em>" ? </p>
  
  <p>U-boot will copy block of memory of  environment variables to RAM ?</p>
  
  <p>Thanks</p>