[coreboot-gerrit] Patch merged into coreboot/master: libpayload: usbmsc: Add small delay during initialization to fix CZ60

[gerrit at coreboot.org]

the following patch was just integrated into master:
commit 8db7e6702b58f99d0e5be5311772b31c16a61633
Author: Julius Werner <jwerner at chromium.org>
Date:   Mon Oct 26 11:44:00 2015 -0700

    libpayload: usbmsc: Add small delay during initialization to fix CZ60
    
    We found that some SanDisk Cruizer Glide CZ60 sticks (confirmed on 16GB
    and 64GB versions) have a problem responding to our first GET_MAX_LUNS
    request right after they received their SET_CONFIGURATION. They will
    continually return a NAK until the host gives up (which is 2
    user-noticable seconds for us). Adding a small delay of about 15us seems
    to be enough to fix the issue, but let's do 50 to be save.
    
    Confirmed with both MT8173 and Intel LynxPoint XHCI controllers.
    
    BRANCH=None
    BUG=chrome-os-partner:45473
    TEST=No notable delay before detecting stick on Oak and Falco.
    
    Change-Id: Ib03944d6484de0ccecbb9922d22666f54c9d53dd
    Signed-off-by: Patrick Georgi <pgeorgi at chromium.org>
    Original-Commit-Id: 589f19a901275fb8b00de4595763a7d577bed524
    Original-Change-Id: I95c79fe40d3ad79f37ce2eb586836e5de55be454
    Original-Signed-off-by: Julius Werner <jwerner at chromium.org>
    Original-Reviewed-on: https://chromium-review.googlesource.com/308980
    Original-Reviewed-by: Patrick Georgi <pgeorgi at chromium.org>
    Reviewed-on: http://review.coreboot.org/12229
    Tested-by: build bot (Jenkins)
    Reviewed-by: Patrick Georgi <pgeorgi at google.com>


See http://review.coreboot.org/12229 for details.

-gerrit