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coreboot/src/mainboard
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Wisley Chen 1612cef81f mainboard/google/snappy: Tune i2c frequency to 400 Khz 
tune i2c devices clk for snappy:
I2C0: audio
I2C2: TPM H1
I2C3: elan touchscreen
I2C4: elan touchpad
I2C5: wacom digitizer

BUG=chrome-os-partner:59034
BRANCH=master
TEST=emerge-snappy coreboot chromeos-bootimage, and measured on EVT.
audio:
  Freq. 393.7kHz
  Rise Time 58.8ns
  Fall time 12.11ns
TPM H1:
  Freq. 398.8kHz
  Rise Time 31.71ns
  Fall time 13.28ns
elan touchscreen:
  Freq. 390.5kHz
  Rise Time 235.7ns
  Fall time 37.64ns
elan touchpad:
  Freq. 393.7kHz
  Rise Time 288.8ns
  Fall time 51.67ns
wacom digitizer:
  Freq. 388.8kHz
  Rise Time 124.1ns
  Fall time 21.10ns

Change-Id: Ib2be9e1575d4962476423eafa80f9bb10ba40e17
Signed-off-by: Wisley Chen <wisley.chen@quantatw.com>
Reviewed-on: https://review.coreboot.org/17634
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Tested-by: build bot (Jenkins)
2016-11-30 16:53:02 +01:00
..
a-trend
aaeon
abit
adi Remove explicit select MMCONF_SUPPORT 2016-11-22 04:15:11 +01:00
adlink
advansus mainboard/advansus: Use C89 comments style & remove commented code 2016-10-10 17:13:14 +02:00
amd mainboard/amd/tilapia_fam10: Use C89 comments style & remove commented code 2016-10-24 20:32:21 +02:00
aopen mainboard/aopen: Use C89 comments style & remove commented code 2016-10-11 23:32:53 +02:00
apple intel sandy/ivy: Improve DIMM replacement detection 2016-11-20 21:24:13 +01:00
artecgroup mainboard/artecgroup: Use C89 comments style & remove commented code 2016-10-09 21:39:18 +02:00
asrock src/mainboard: Remove whitespace after sizeof 2016-10-07 18:06:34 +02:00
asus mb/asus/kcma-d8,kgpe-d16: use MAINBOARD_DO_NATIVE_VGA_INIT 2016-10-19 16:55:53 +02:00
avalue mainboard/avalue: Use C89 comments style & remove commented code 2016-10-10 17:12:59 +02:00
azza
bachmann
bap src/mainboard: Remove whitespace after sizeof 2016-10-07 18:06:34 +02:00
bcom
bifferos
biostar
broadcom
compaq
cubietech
digitallogic
dmp
ecs
elmex
emulation Remove explicit select MMCONF_SUPPORT 2016-11-22 04:15:11 +01:00
esd
getac mainboard/getac/p470: transition away from device_t 2016-11-09 23:47:26 +01:00
gigabyte mb/gigabyte/ga-945gcm-s2c: Add mainboard using variants 2016-11-30 00:20:45 +01:00
gizmosphere
google mainboard/google/snappy: Tune i2c frequency to 400 Khz 2016-11-30 16:53:02 +01:00
hp
ibase mainboard/ibase/mb899: transition away from device_t 2016-11-09 23:47:34 +01:00
iei mainboard/iei/pm-lx2-800-r10: transition away from device_t 2016-11-09 23:47:46 +01:00
intel soc/intel/skylake: Add USB Port Over Current (OC) Pin programming 2016-11-28 19:00:36 +01:00
iwave
iwill
jetway mainboard/jetway/j7f2: transition away from device_t 2016-11-09 23:48:02 +01:00
kontron mb/kontron/ktqm77: Enable native gfx init through libgfxinit 2016-11-29 23:48:06 +01:00
lanner
lenovo lenovo/x200/board_info.txt: Add SOIC-8 to ROM package 2016-11-21 21:50:02 +01:00
linutop
lippert
lowrisc riscv: Unify SBI call implementations under arch/riscv/ 2016-11-07 16:47:49 +01:00
mitac
msi mainboard/ms7721: Add MSI MS-7721 (FM2-A57MA-E35) 2016-11-22 05:19:06 +01:00
nec
nokia
nvidia
packardbell
pcengines pcengines/apu1: Add RS485 configuration 2016-10-28 16:56:55 +02:00
purism
rca mainboard/rca/rm4100: transition away from device_t 2016-11-10 16:55:42 +01:00
roda mainboard/roda/rk9: transition away from device_t 2016-11-10 16:57:06 +01:00
samsung intel sandy/ivy: Improve DIMM replacement detection 2016-11-20 21:24:13 +01:00
siemens mc_tcu3: Swap LVDS even and odd lanes for a certain hardware 2016-11-24 19:24:03 +01:00
soyo
sunw
supermicro mainboard/supermicro/h8qme_fam10: transition away from device_t 2016-11-10 17:00:01 +01:00
technexion
thomson mainboard/thomson/ip1000: transition away from device_t 2016-11-10 17:00:59 +01:00
ti
traverse
tyan mainboard/tyan/s8226: transition away from device_t 2016-11-15 18:16:38 +01:00
via mainboard/via/vt8454c: transition away from device_t 2016-11-15 18:19:12 +01:00
winent
wyse
Kconfig