diff options
| author | Ren Kuo <ren.kuo@quanta.corp-partner.google.com> | 2022-07-01 18:18:53 +0800 |
|---|---|---|
| committer | Felix Held <felix-coreboot@felixheld.de> | 2022-07-14 12:46:59 +0000 |
| commit | 6b3f7a91457f04ba4457f10928c20f5baad4deb7 (patch) | |
| tree | 728332c29a16e0e52564c875e5e6600a5db492b8 /src | |
| parent | fd52e66e77c36de1827fd969edb6b6ba39abb6fe (diff) | |
mb/google/brya/var/volmar: I2C timing fine tune
Configure the I2C bus timing for all enabled I2C buses.
BUG=b:237751906
TEST=Verify the build for volmar board and measure the freq
is under 400KHz
Signed-off-by: Ren Kuo <ren.kuo@quanta.corp-partner.google.com>
Change-Id: Iffa128146f5d8bec6dd3d5c2d1e7efd96895dc6b
Reviewed-on: https://review.coreboot.org/c/coreboot/+/65604
Reviewed-by: David Wu <david_wu@quanta.corp-partner.google.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Diffstat (limited to 'src')
| -rw-r--r-- | src/mainboard/google/brya/variants/volmar/overridetree.cb | 13 |
1 files changed, 2 insertions, 11 deletions
diff --git a/src/mainboard/google/brya/variants/volmar/overridetree.cb b/src/mainboard/google/brya/variants/volmar/overridetree.cb index b7a8b82aed..ff2757aefb 100644 --- a/src/mainboard/google/brya/variants/volmar/overridetree.cb +++ b/src/mainboard/google/brya/variants/volmar/overridetree.cb @@ -56,34 +56,25 @@ chip soc/intel/alderlake register "common_soc_config" = "{ .i2c[0] = { .speed = I2C_SPEED_FAST, - .rise_time_ns = 650, - .fall_time_ns = 400, - .data_hold_time_ns = 50, }, .i2c[1] = { .early_init = 1, .speed = I2C_SPEED_FAST, - .rise_time_ns = 600, + .rise_time_ns = 550, .fall_time_ns = 400, .data_hold_time_ns = 50, }, .i2c[2] = { .speed = I2C_SPEED_FAST, - .rise_time_ns = 650, - .fall_time_ns = 400, - .data_hold_time_ns = 50, }, .i2c[3] = { .speed = I2C_SPEED_FAST, - .rise_time_ns = 650, + .rise_time_ns = 550, .fall_time_ns = 400, .data_hold_time_ns = 50, }, .i2c[5] = { .speed = I2C_SPEED_FAST, - .rise_time_ns = 650, - .fall_time_ns = 400, - .data_hold_time_ns = 50, }, }" |