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authorRen Kuo <ren.kuo@quanta.corp-partner.google.com>2020-10-21 11:26:48 +0800
committerPatrick Georgi <pgeorgi@google.com>2020-10-27 06:13:43 +0000
commit12b376c87ff9367133618866659d2a5987d3e9a5 (patch)
tree08ba4edc9f1f13277f8ce77269e397325f65a326 /src/mainboard/google/dedede
parent8f594b7319c395bc09c711de05ff53f181c0c43d (diff)
mb/google/dedede/var/magolor: Configure I2C high and low time
Configure the I2C bus high and low time for all enabled I2C buses. BUG=b:168783630 TEST=Measured the I2C bus frequency reduce to 387 KHz. Signed-off-by: Ren Kuo <ren.kuo@quanta.corp-partner.google.com> Change-Id: I9f5b81815f86db7bdcea95a95b9c9b235b4a34b1 Reviewed-on: https://review.coreboot.org/c/coreboot/+/46613 Reviewed-by: Karthik Ramasubramanian <kramasub@google.com> Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Diffstat (limited to 'src/mainboard/google/dedede')
-rw-r--r--src/mainboard/google/dedede/variants/magolor/overridetree.cb24
1 files changed, 24 insertions, 0 deletions
diff --git a/src/mainboard/google/dedede/variants/magolor/overridetree.cb b/src/mainboard/google/dedede/variants/magolor/overridetree.cb
index f41e9fab6b..625546e7ff 100644
--- a/src/mainboard/google/dedede/variants/magolor/overridetree.cb
+++ b/src/mainboard/google/dedede/variants/magolor/overridetree.cb
@@ -25,18 +25,42 @@ chip soc/intel/jasperlake
},
.i2c[0] = {
.speed = I2C_SPEED_FAST,
+ .speed_config[0] = {
+ .speed = I2C_SPEED_FAST,
+ .scl_lcnt = 190,
+ .scl_hcnt = 100,
+ .sda_hold = 40,
+ }
},
.i2c[1] = {
.speed = I2C_SPEED_FAST,
},
.i2c[2] = {
.speed = I2C_SPEED_FAST,
+ .speed_config[0] = {
+ .speed = I2C_SPEED_FAST,
+ .scl_lcnt = 190,
+ .scl_hcnt = 100,
+ .sda_hold = 40,
+ }
},
.i2c[3] = {
.speed = I2C_SPEED_FAST,
+ .speed_config[0] = {
+ .speed = I2C_SPEED_FAST,
+ .scl_lcnt = 190,
+ .scl_hcnt = 100,
+ .sda_hold = 40,
+ }
},
.i2c[4] = {
.speed = I2C_SPEED_FAST,
+ .speed_config[0] = {
+ .speed = I2C_SPEED_FAST,
+ .scl_lcnt = 190,
+ .scl_hcnt = 100,
+ .sda_hold = 40,
+ }
},
}"