mb/google/brya/var/anahera: Adjust I2C5 timing for touchpad
Adjust scl_lcnt, scl_hcnt, sda_hold value for I2C5 to meet
touchpad SPEC.
BUG=b:260540852
BRANCH=firmware-brya-14505.B
TEST=build, checked TP function work normally,
and measure the timing meet SPEC
tLOW ~1.72 us
tHIGH ~0.63 us
tHD ~0.69 us
fscl 383 kHz
Change-Id: I9036a604a90558911c4f8a492db9f1f0f28bf404
Signed-off-by: Wisley Chen <wisley.chen@quanta.corp-partner.google.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/70171
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Eric Lai <eric_lai@quanta.corp-partner.google.com>
Reviewed-by: YH Lin <yueherngl@google.com>
Reviewed-by: Nick Vaccaro <nvaccaro@google.com>
diff --git a/src/mainboard/google/brya/variants/anahera/overridetree.cb b/src/mainboard/google/brya/variants/anahera/overridetree.cb
index df7f632..1773e0e 100644
--- a/src/mainboard/google/brya/variants/anahera/overridetree.cb
+++ b/src/mainboard/google/brya/variants/anahera/overridetree.cb
@@ -66,7 +66,12 @@
.speed = I2C_SPEED_FAST,
.rise_time_ns = 650,
.fall_time_ns = 400,
- .data_hold_time_ns = 50,
+ .speed_config[0] = {
+ .speed = I2C_SPEED_FAST,
+ .scl_lcnt = 170,
+ .scl_hcnt = 70,
+ .sda_hold = 40,
+ }
},
}"
register "tcc_offset" = "3" # TCC of 97C