[coreboot-gerrit] Change in coreboot[master]: mb/google/volteer/variants/volteer2: Turn I2C2 bus freq closer to 400...

[Johnny Li (Code Review)]

Johnny Li has uploaded this change for review. ( https://review.coreboot.org/c/coreboot/+/47558 )

Change subject: mb/google/volteer/variants/volteer2: Turn I2C2 bus freq closer to 400 kHz for WLAN
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mb/google/volteer/variants/volteer2: Turn I2C2 bus freq closer to 400 kHz for WLAN

The current I2C2 bus frequency is 344 kHZ, which does not meet the spec. This change updates scl_lcnt, scl_hcnt, sda_hold value for I2C2 to bring
the bus frequency closer to 400 kHz.

BUG=b:153588771
TEST=Verified that I2C2 frequency is 380 kHz.

Signed-off-by: Johnny Li 
Change-Id: I96fa5ed586de41324733ac7537b6bd73f39fc176
---
M src/mainboard/google/volteer/variants/volteer2/overridetree.cb
1 file changed, 7 insertions(+), 0 deletions(-)

git pull ssh://review.coreboot.org:29418/coreboot refs/changes/58/47558/1

diff --git a/src/mainboard/google/volteer/variants/volteer2/overridetree.cb b/src/mainboard/google/volteer/variants/volteer2/overridetree.cb
index e4da0e6..4678d26 100644
--- a/src/mainboard/google/volteer/variants/volteer2/overridetree.cb
+++ b/src/mainboard/google/volteer/variants/volteer2/overridetree.cb
@@ -36,6 +36,13 @@
    	},
    	.i2c[2] = {
    		.speed = I2C_SPEED_FAST,
+			.speed_config[0] = {
+				.speed = I2C_SPEED_FAST,
+				.scl_lcnt = 163,
+				.scl_hcnt = 75,
+				.sda_hold = 36,
+			},
+
    	},
    	.i2c[3] = {
    		.speed = I2C_SPEED_FAST,