[U-Boot-Users] Problems with new ethernet init on mpc8360

[Jerry Van Baren <gvb.uboot@gmail.com>]

Hi Kim,

I have a mpc8360emds eval board.  The ee62ed patch (below) speeds up the 
start up (good), but seems to cause the board to hang on the *second* 
ethernet operation.

I can cause this by doing two pings in a row: the first ping initializes 
the network and completes successfully.  The second ping hangs the 
board: it never completes.  I cannot abort it with ^C.  The only way out 
is to reset the board.

The same thing happens with two back-to-back tftp operations or a ping 
followed by a tftp operation.

If I back out the ee62ed patch (below), it "fixes" the problem.

I tried backing out some simple portions of the patch (added delays back 
in) with no success.  I've given up chasing this for tonight.  Any 
inspiration you can generate would be appreciated, I'll chase it some 
more tomorrow.

Thanks,
gvb


commit ee62ed3286f83b98b7785e0318dc6379e78f7ff6
Author: Kim Phillips <kim.phillips@freescale.com>
Date:   Tue Jan 15 14:11:00 2008 -0600

      net: reduce boot latency on QE UEC based boards

      actually polling for PHY autonegotiation to finish enables us to
remove the
      5 second boot prompt latency present on QE based boards.

      call to qe_set_mii_clk_src in init_phy, and mv call to init_phy from
      uec_initialize to uec_init by Joakim Tjernlund; autonegotiation wait
      code shamelessly stolen from tsec driver.

      also rm unused CONFIG_RMII_MODE code.

      Signed-off-by: Kim Phillips <kim.phillips@freescale.com>
      Signed-off-by: Joakim Tjernlund <Joakim.Tjernlund@transmode.se>
      Signed-off-by: Ben Warren <biggerbadderben@gmail.com>