google/reef: Correct SD card pins config

Hardware / Coreboot - Chiranjeevi Rapolu [intel.com] - 5 August 2016 11:02 UTC

SD CLK and CLK_FB needs to be pulled down by 20K. SD CD_N is active LOW, needs to be pulled up by 20K SD WP pin is not connected for uSD cards, enable writes by default by pulling low by 20K.

BUG=chrome-os-partner:54866 BRANCH=None TEST=Test with uSD cards.

Change-Id: Ia4bbd966ffb21e276dfc31a74f4ea54718900d66

44d0ddc google/reef: Correct SD card pins config
src/mainboard/google/reef/gpio.h | 12 ++++++++----
1 file changed, 8 insertions(+), 4 deletions(-)

Upstream: review.coreboot.org

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