diff options
| author | Mark Hsieh <mark_hsieh@wistron.corp-partner.google.com> | 2023-10-04 18:20:35 +0800 |
|---|---|---|
| committer | Felix Held <felix-coreboot@felixheld.de> | 2023-10-09 13:41:38 +0000 |
| commit | 0177c95c16e5413f832200bfd4cf8a0e5adcfbe5 (patch) | |
| tree | d96dfd19c72c4a070cf5fc72e6fcd28a34d68b7b /src/mainboard | |
| parent | b7f602a9fc35016d75f5669d4d413188283d1596 (diff) | |
mb/google/nissa/var/joxer: Config I2C frequency
Measured the I2C frequency meets spec
- I2C0 (TPM): 949.7 Khz
- I2C1 (TouchScreen): 395.8 Khz
- I2C3 (Audio): 387.4 Khz
- I2C5 (Touchpad): 384.8 Khz
BUG=b:303356736
TEST=USE="project_joxer emerge-nissa coreboot"
and check all I2C devices measurement result
Signed-off-by: Mark Hsieh <mark_hsieh@wistron.corp-partner.google.com>
Change-Id: I17dd1cb7800d00669f86fc6e2b350757695da881
Reviewed-on: https://review.coreboot.org/c/coreboot/+/78218
Reviewed-by: Derek Huang <derekhuang@google.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Eric Lai <ericllai@google.com>
Diffstat (limited to 'src/mainboard')
| -rw-r--r-- | src/mainboard/google/brya/variants/joxer/overridetree.cb | 18 |
1 files changed, 9 insertions, 9 deletions
diff --git a/src/mainboard/google/brya/variants/joxer/overridetree.cb b/src/mainboard/google/brya/variants/joxer/overridetree.cb index 0c2ef6c7bc..12175c5eae 100644 --- a/src/mainboard/google/brya/variants/joxer/overridetree.cb +++ b/src/mainboard/google/brya/variants/joxer/overridetree.cb @@ -92,11 +92,11 @@ chip soc/intel/alderlake register "common_soc_config" = "{ .i2c[0] = { .early_init = 1, - .speed = I2C_SPEED_FAST, + .speed = I2C_SPEED_FAST_PLUS, .speed_config[0] = { - .speed = I2C_SPEED_FAST, - .scl_lcnt = 158, - .scl_hcnt = 79, + .speed = I2C_SPEED_FAST_PLUS, + .scl_lcnt = 56, + .scl_hcnt = 30, .sda_hold = 7, } }, @@ -104,16 +104,16 @@ chip soc/intel/alderlake .speed = I2C_SPEED_FAST, .speed_config[0] = { .speed = I2C_SPEED_FAST, - .scl_lcnt = 160, + .scl_lcnt = 158, .scl_hcnt = 79, - .sda_hold = 7, + .sda_hold = 30, } }, .i2c[3] = { .speed = I2C_SPEED_FAST, .speed_config[0] = { .speed = I2C_SPEED_FAST, - .scl_lcnt = 157, + .scl_lcnt = 158, .scl_hcnt = 79, .sda_hold = 7, } @@ -122,9 +122,9 @@ chip soc/intel/alderlake .speed = I2C_SPEED_FAST, .speed_config[0] = { .speed = I2C_SPEED_FAST, - .scl_lcnt = 152, + .scl_lcnt = 158, .scl_hcnt = 79, - .sda_hold = 7, + .sda_hold = 40, } }, }" |