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| author | Stanley Wu <stanley1.wu@lcfc.corp-partner.google.com> | 2020-12-23 20:26:57 +0800 |
|---|---|---|
| committer | Patrick Georgi <pgeorgi@google.com> | 2021-01-07 08:12:06 +0000 |
| commit | 2f8df88ced9cd224cb419ff51489c351fccfda4f (patch) | |
| tree | f988ece23527b0da64e4340253bcf5a4e7926bf0 | |
| parent | 50dc0633dbb5a839e5b4e19f8ecc8faa5e682ad2 (diff) | |
mb/google/dedede/var/boten: 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: Stanley Wu <stanley1.wu@lcfc.corp-partner.google.com>
Change-Id: I37403dd3ac3c9320398207d2111e1ddb73d6a130
Reviewed-on: https://review.coreboot.org/c/coreboot/+/48878
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Marco Chen <marcochen@google.com>
Reviewed-by: Paul Fagerburg <pfagerburg@chromium.org>
Reviewed-by: Karthik Ramasubramanian <kramasub@google.com>
| -rw-r--r-- | src/mainboard/google/dedede/variants/boten/overridetree.cb | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/src/mainboard/google/dedede/variants/boten/overridetree.cb b/src/mainboard/google/dedede/variants/boten/overridetree.cb index ab8fcdba29..e4f5e7b709 100644 --- a/src/mainboard/google/dedede/variants/boten/overridetree.cb +++ b/src/mainboard/google/dedede/variants/boten/overridetree.cb @@ -21,15 +21,33 @@ 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[4] = { .speed = I2C_SPEED_FAST, + .speed_config[0] = { + .speed = I2C_SPEED_FAST, + .scl_lcnt = 190, + .scl_hcnt = 100, + .sda_hold = 40, + } }, .i2c[5] = { .speed = I2C_SPEED_FAST, |