google/gru: enable uart2 if configured

Hardware / Coreboot - Shunqian Zheng [rock-chips.com] - 9 May 2016 01:42 UTC

This patch select gpio pins for UART2 which is the default debug port of rk3399.

Please refer to TRM V0.3 Part1 Page 325,395 for GRF details.

BRANCH=none BUG=chrome-os-partner:51537 TEST=check logs from console manually

Change-Id: I91eeadd543e7e895c3972d8dd7a2195c9d78968b

a1f873f google/gru: enable uart2 if configured
src/mainboard/google/gru/bootblock.c | 13 +++++++++++++
1 file changed, 13 insertions(+)

Upstream: review.coreboot.org

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