1. 14 Dec, 2016 1 commit
  2. 01 Dec, 2016 1 commit
  3. 28 Jul, 2014 1 commit
    • Alessandro Rubini's avatar
      bugfix: kernel: use more relaxed nand timings · bb56d5b5
      Alessandro Rubini authored
      We used the timing from the g45ek, but ours is slower. Actually, ours
      is slower only in 16-bit mode, and has the same timing when used in
      8-bit mode.
      
      Our timing setup was outside of the allowed specification, and resulted
      in random and unreproducible failures.  The "visible" effect is
      that reading 100MB takes 13.4s instead of 11.4s, measured with:
      
        time dd bs=1k count=102400 < /dev/mtd1 > /dev/null
      
      You can try another, still slower, setup just by hand, like this
      (in this order):
      
         devmem 0xffffe83c w 0x00051003
         devmem 0xffffe838 w 0x000f000f
         devmem 0xffffe830 w 0x04060406
      
      but the current settings (41003, 000c000c, 02040204) are alread within
      specification.
      Signed-off-by: Alessandro Rubini's avatarAlessandro Rubini <rubini@gnudd.com>
      bb56d5b5