Johnny Li has uploaded this change for review. ( https://review.coreboot.org/c/coreboot/+/43053 )
Change subject: mb/google/volteer/variant/volteer: Turn I2C2 bus freq closer to 400 kHz for WLAN ......................................................................
mb/google/volteer/variant/volteer: 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 400kHz.
BUG=b:153588771 TEST=Verified that I2C2 frequency is 394kHz.
Signed-off-by: Johnny Li johnny_li@wistron.corp-partner.google.com Change-Id: I5c4ec105f12ac3938124547340c9177290b7b2bc --- M src/mainboard/google/volteer/variants/volteer/overridetree.cb 1 file changed, 5 insertions(+), 5 deletions(-)
git pull ssh://review.coreboot.org:29418/coreboot refs/changes/53/43053/1
diff --git a/src/mainboard/google/volteer/variants/volteer/overridetree.cb b/src/mainboard/google/volteer/variants/volteer/overridetree.cb index 3effc6d..6549932 100644 --- a/src/mainboard/google/volteer/variants/volteer/overridetree.cb +++ b/src/mainboard/google/volteer/variants/volteer/overridetree.cb @@ -191,16 +191,16 @@ }, .i2c[2] = { .speed = I2C_SPEED_FAST, - }, - .i2c[3] = { - .speed = I2C_SPEED_FAST, - .speed_config[0] = { + .speed_config[0] = { .speed = I2C_SPEED_FAST, - .scl_lcnt = 153, + .scl_lcnt = 163, .scl_hcnt = 75, .sda_hold = 36, }, }, + .i2c[3] = { + .speed = I2C_SPEED_FAST, + }, .i2c[5] = { .speed = I2C_SPEED_FAST, },