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gru: Enable EC-based RTC

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Obtain the real-time clock value from the EC on start-up and show the
current time.

BUG=chrome-os-partner:52220
BRANCH=none
TEST=(partial) with future commits and EC clock set, boot on gru into
      Linux shell and check the firmware log:

      localhost ~ # grep Date: /sys/firmware/log
      Date: 2016-06-20 (Monday)  Time: 18:09:16

Change-Id: Iff43b16a86d9fee483420ee2eff5ff3d276716a3
Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/351781
Commit-Ready: Vadim Bendebury <vbendeb@chromium.org>
Tested-by: Vadim Bendebury <vbendeb@chromium.org>
Reviewed-by: Vadim Bendebury <vbendeb@chromium.org>
This commit is contained in:
Simon Glass 2016-06-10 20:58:24 -06:00 • committed by chrome-bot
commit 348e9373b0
1 changed files with 4 additions and 0 deletions
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4
src/mainboard/google/gru/Kconfig
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@ -23,10 +23,14 @@ config BOARD_SPECIFIC_OPTIONS
select BOARD_ID_AUTO
select BOARD_ROMSIZE_KB_8192
select COMMON_CBFS_SPI_WRAPPER
select EC_GOOGLE_CHROMEEC
select EC_GOOGLE_CHROMEEC_RTC
select EC_GOOGLE_CHROMEEC_SPI
select HAVE_HARD_RESET
select MAINBOARD_DO_NATIVE_VGA_INIT
select MAINBOARD_HAS_CHROMEOS
select MAINBOARD_HAS_NATIVE_VGA_INIT
select RTC
select SOC_ROCKCHIP_RK3399
select SPI_FLASH
select SPI_FLASH_GIGADEVICE