[coreboot-gerrit] Change in coreboot[master]: mb/google/octopus: Touchpad I2C CLK over spec
Chris Zhou (Code Review)
gerrit at coreboot.org
Thu Sep 27 09:29:21 CEST 2018
Chris Zhou has uploaded this change for review. ( https://review.coreboot.org/28760
Change subject: mb/google/octopus: Touchpad I2C CLK over spec
......................................................................
mb/google/octopus: Touchpad I2C CLK over spec
Need to tune I2C bus 6 clock frequency under the 400K Hz
Bug=b:115600671
TEST=flash coreboot to the DUT and measure I2C bus 6 clock
frequency whether arrive to 398.07K Hz
Change-Id: I5cc1f67f0db0553cb8424f81408ed4686cddb2fb
Signed-off-by: Chris Zhou <chris_zhou at compal.corp-partner.google.com>
---
M src/mainboard/google/octopus/variants/fleex/overridetree.cb
1 file changed, 41 insertions(+), 0 deletions(-)
git pull ssh://review.coreboot.org:29418/coreboot refs/changes/60/28760/1
diff --git a/src/mainboard/google/octopus/variants/fleex/overridetree.cb b/src/mainboard/google/octopus/variants/fleex/overridetree.cb
index 179b8f4..792e057 100644
--- a/src/mainboard/google/octopus/variants/fleex/overridetree.cb
+++ b/src/mainboard/google/octopus/variants/fleex/overridetree.cb
@@ -1,5 +1,46 @@
chip soc/intel/apollolake
+ # Intel Common SoC Config
+ #+-------------------+---------------------------+
+ #| Field | Value |
+ #+-------------------+---------------------------+
+ #| GSPI0 | cr50 TPM. Early init is |
+ #| | required to set up a BAR |
+ #| | for TPM communication |
+ #| | before memory is up |
+ #| I2C5 | Audio |
+ #| I2C6 | Trackpad |
+ #| I2C7 | Touchscreen |
+ #+-------------------+---------------------------+
+
+ register "common_soc_config" = "{
+ .gspi[0] = {
+ .speed_mhz = 1,
+ .early_init = 1,
+ },
+ .i2c[0] = {
+ .speed = I2C_SPEED_FAST,
+ .rise_time_ns = 152,
+ .fall_time_ns = 30,
+ },
+ .i2c[5] = {
+ .speed = I2C_SPEED_FAST,
+ .rise_time_ns = 104,
+ .fall_time_ns = 52,
+ },
+ .i2c[6] = {
+ .speed = I2C_SPEED_FAST,
+ .rise_time_ns = 66,
+ .fall_time_ns = 90,
+ .data_hold_time_ns = 350,
+ },
+ .i2c[7] = {
+ .speed = I2C_SPEED_FAST,
+ .rise_time_ns = 76,
+ .fall_time_ns = 164,
+ },
+ }"
+
device domain 0 on
device pci 16.1 off end # - I2C 1
device pci 17.1 on
--
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Gerrit-Project: coreboot
Gerrit-Branch: master
Gerrit-MessageType: newchange
Gerrit-Change-Id: I5cc1f67f0db0553cb8424f81408ed4686cddb2fb
Gerrit-Change-Number: 28760
Gerrit-PatchSet: 1
Gerrit-Owner: Chris Zhou <chris_zhou at compal.corp-partner.google.com>
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