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| author | Karthikeyan Ramasubramanian <kramasub@google.com> | 2020-09-03 11:54:23 -0600 |
|---|---|---|
| committer | Patrick Georgi <pgeorgi@google.com> | 2020-09-08 05:32:14 +0000 |
| commit | 9526c5dedaa6d4dac82dca1eb2def236f169b037 (patch) | |
| tree | c5a7bc2fa7784f857c117ca84005c805d46eb7d8 | |
| parent | dc87025ce41f24c8c3337176c3e38f230e7a0aa9 (diff) | |
| download | coreboot-9526c5dedaa6d4dac82dca1eb2def236f169b037.tar.xz | |
mb/google/dedede/var/waddledee: Configure I2C high and low time
Configure the I2C bus high and low time for all enabled I2C buses.
BUG=b:163743035
TEST=Measured the I2C bus frequency as 384 KHz, high time as 924 ns and
low time as 1680 ns.
Change-Id: I60a5f6814fb9818c724f6b6fe465ea49d0de0f97
Signed-off-by: Karthikeyan Ramasubramanian <kramasub@google.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/45083
Reviewed-by: Furquan Shaikh <furquan@google.com>
Reviewed-by: Tim Wawrzynczak <twawrzynczak@chromium.org>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
| -rw-r--r-- | src/mainboard/google/dedede/variants/waddledee/overridetree.cb | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/src/mainboard/google/dedede/variants/waddledee/overridetree.cb b/src/mainboard/google/dedede/variants/waddledee/overridetree.cb index a538ecc24a..a525a0f2c5 100644 --- a/src/mainboard/google/dedede/variants/waddledee/overridetree.cb +++ b/src/mainboard/google/dedede/variants/waddledee/overridetree.cb @@ -21,18 +21,36 @@ 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, + } }, }" |