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authorKarthikeyan Ramasubramanian <kramasub@google.com>2020-09-03 12:02:27 -0600
committerPatrick Georgi <pgeorgi@google.com>2020-09-08 05:32:24 +0000
commit4d761db7e8aeeef139e8b1c306bd481c09be2685 (patch)
tree99d193b6c73ccb9dfcbdc0ec779fba12a6e851a1 /src/mainboard/google/dedede
parent9526c5dedaa6d4dac82dca1eb2def236f169b037 (diff)
downloadcoreboot-4d761db7e8aeeef139e8b1c306bd481c09be2685.tar.xz
mb/google/dedede/var/drawcia: Configure I2C high and low time
Configure the I2C bus high and low time for all enabled I2C buses. BUG=b:162232776 TEST=Measured the I2C bus frequency as 389 KHz, high time as 870 ns and low time as 1580 ns. Change-Id: I67d2725a7fc8d83e3fa8a56cfa86540c4e6f0971 Signed-off-by: Karthikeyan Ramasubramanian <kramasub@google.com> Reviewed-on: https://review.coreboot.org/c/coreboot/+/45084 Reviewed-by: Furquan Shaikh <furquan@google.com> Reviewed-by: Tim Wawrzynczak <twawrzynczak@chromium.org> Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Diffstat (limited to 'src/mainboard/google/dedede')
-rw-r--r--src/mainboard/google/dedede/variants/drawcia/overridetree.cb18
1 files changed, 18 insertions, 0 deletions
diff --git a/src/mainboard/google/dedede/variants/drawcia/overridetree.cb b/src/mainboard/google/dedede/variants/drawcia/overridetree.cb
index faded0e0b8..395dee3f69 100644
--- a/src/mainboard/google/dedede/variants/drawcia/overridetree.cb
+++ b/src/mainboard/google/dedede/variants/drawcia/overridetree.cb
@@ -24,18 +24,36 @@ 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,
},
.i2c[4] = {
.speed = I2C_SPEED_FAST,
+ .speed_config[0] = {
+ .speed = I2C_SPEED_FAST,
+ .scl_lcnt = 190,
+ .scl_hcnt = 100,
+ .sda_hold = 40,
+ }
},
}"