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siemens/mc_apl1: Enable I2C0 with 100kHz 

The default setting for I2Cx is 400kHz. On this mainboard there is a
device on I2C0 which requires a lower clock rate to work correctly. For
this reason we set the frequency to 100kHz.

Change-Id: I637a58a0c89ead55ca1176d6aecdfaba5897d64f
Signed-off-by: Mario Scheithauer <mario.scheithauer@siemens.com>
Reviewed-on: https://review.coreboot.org/22140
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Werner Zeh <werner.zeh@siemens.com>
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
This commit is contained in:
Mario Scheithauer 2017-10-23 16:34:28 +02:00 committed by Werner Zeh
parent dda58a2a3c
commit ee2dae2f17
1 changed files with 5 additions and 0 deletions
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5
src/mainboard/siemens/mc_apl1/devicetree.cb
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@ -43,6 +43,11 @@ chip soc/intel/apollolake
# [6:0] steps of delay for HS200, each 125ps.
register "emmc_rx_cmd_data_cntl2" = "0x10008"
# Enable I2C0 for proximity sensor at 100kHz
register "i2c[0]" = "{
.speed = I2C_SPEED_STANDARD
}"
device domain 0 on
device pci 00.0 on end # - Host Bridge
device pci 00.1 off end # - DPTF