title: How do you configure the master priority register for i.MX21 in vanilla kernel 3.0.x?
body: <p>I am running Linux kernel 3.0.x on my iMX21 device and by using imxfb I can display my graphics however when doing other tasks the screen will flicker and eventually stop working.
  From what I have read on-line this is fixed by doing the following to kernel 2.6.16:</p>
  
  <p>Slave port for EMI - LCD/SLCD highest priority, ARM lowest
  MAX_MPR(3) = 0x00123056;</p>
  
  <p>I am unsure how to do this in my version of kernel.</p>