Patch merged into coreboot/master: google/gru: Ensure correct pull resistors for special-function pins

the following patch was just integrated into master:
commit 7feb86b26b2b72d21098a90bff0843d8533a7493
Author: Julius Werner 
Date:   Fri Sep 2 11:25:56 2016 -0700

google/gru: Ensure correct pull resistors for special-function pins

Several of the special function pins we're using in firmware have a
    pre-assigned pull-up or pull-down on power-on reset. We don't want those
    to interfere with any of the signaling we're trying to do on those pins,
    so this patch disables them.

Also do some house-cleaning to group the bootblock code better, and
    change the setup code for all SPI and I2C buses to first initialize the
    controller and then mux the pins... I assume this might be a little
    safer (in case the controller peripheral has some pins in a weird state
    before it gets fully initialized, we don't want to mux it through too
    early).

BRANCH=None
    BUG=chrome-os-partner:52526
    TEST=Booted Kevin.

Change-Id: I4d5bd3f7657b8113d90b65d9571583142ba10a27
    Signed-off-by: Patrick Georgi 
    Original-Commit-Id: f8f7fd56e945987eb0b1124b699f676bc68d0560
    Original-Change-Id: I6bcf2b9a5dc686f2b6f82bd80fc9a1a245661c47
    Original-Signed-off-by: Julius Werner 
    Original-Reviewed-on: https://chromium-review.googlesource.com/382532
    Reviewed-on: https://review.coreboot.org/16711
    Tested-by: build bot (Jenkins)
    Reviewed-by: Martin Roth

See https://review.coreboot.org/16711 for details.

-gerrit