Patch merged into coreboot/master: rockchip/rk3399: reset system if DDR init fails

the following patch was just integrated into master:
commit df3321aa34cab80a67a00d86e86f7dea93b43067
Author: Lin Huang 
Date:   Mon Oct 10 20:57:09 2016 -0700

rockchip/rk3399: reset system if DDR init fails

We found sdram may fail in pctl_cfg(), so we check the status in this
    function. If it exceeds 100ms still in this function, we will restart
    the system. We also found there are rare chances DDR training fails,
    so also restart system in that case.

BUG=chrome-os-partner:57988
    BRANCH=None
    TEST=coreboot resets on failure and eventually the system comes up

Change-Id: Icc0688da028a8f4f81eafe36bbaa79fdf2bcea74
    Signed-off-by: Patrick Georgi 
    Original-Commit-Id: 89e45f8352f62e19a203316330aba14ccc5c8b11
    Original-Change-Id: If4e78983abcfdfe1e0e26847448d86169e598700
    Original-Signed-off-by: Lin Huang 
    Original-Reviewed-on: https://chromium-review.googlesource.com/397439
    Original-Reviewed-by: Julius Werner 
    Reviewed-on: https://review.coreboot.org/17045
    Tested-by: build bot (Jenkins)
    Reviewed-by: Martin Roth

See https://review.coreboot.org/17045 for details.

-gerrit