mb/google/nissa/var/sundance: Increase I2C1 hold time to 126ns
According to the vendor spec, I2C1 hold time needs > 100ns.
System needs to adjust the I2C1 sda_hold value from 7 to 13,
the system will change the I2C1 hold time from 70ns to 126ns.
BUG=b:347157276
TEST=built bootleg and verified test result by EE team
Change-Id: I722ec93177b6debf6b4c99de2df68c942560a3ff
Signed-off-by: Roger Wang <roger2.wang@lcfc.corp-partner.google.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/83080
Reviewed-by: Paul Menzel <paulepanter@mailbox.org>
Reviewed-by: Eric Lai <ericllai@google.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Kapil Porwal <kapilporwal@google.com>
diff --git a/src/mainboard/google/brya/variants/sundance/overridetree.cb b/src/mainboard/google/brya/variants/sundance/overridetree.cb
index 72cb317..03450d4 100644
--- a/src/mainboard/google/brya/variants/sundance/overridetree.cb
+++ b/src/mainboard/google/brya/variants/sundance/overridetree.cb
@@ -128,7 +128,7 @@
.speed = I2C_SPEED_FAST,
.scl_lcnt = 157,
.scl_hcnt = 79,
- .sda_hold = 7,
+ .sda_hold = 13,
}
},
.i2c[3] = {