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| author | Mario Scheithauer <mario.scheithauer@siemens.com> | 2017-10-23 16:34:28 +0200 |
|---|---|---|
| committer | Werner Zeh <werner.zeh@siemens.com> | 2017-11-03 07:12:08 +0000 |
| commit | ee2dae2f17952cbd87148a9a33b847cdbe0af4dc (patch) | |
| tree | f39a7160b081fa053aa520058ca505085605bec8 /src/mainboard/siemens | |
| parent | dda58a2a3c68707f0113606f2b014581ca363c41 (diff) | |
| download | coreboot-ee2dae2f17952cbd87148a9a33b847cdbe0af4dc.tar.xz | |
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>
Diffstat (limited to 'src/mainboard/siemens')
| -rw-r--r-- | src/mainboard/siemens/mc_apl1/devicetree.cb | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/src/mainboard/siemens/mc_apl1/devicetree.cb b/src/mainboard/siemens/mc_apl1/devicetree.cb index 04b3ae5286..e2b6ceec7f 100644 --- a/src/mainboard/siemens/mc_apl1/devicetree.cb +++ b/src/mainboard/siemens/mc_apl1/devicetree.cb @@ -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 |