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mb/google/dedede/var/galtic: Configure I2C high and low time 

Configure the I2C bus high and low time for all enabled I2C buses.

BUG=b:179100924
TEST=Measured the I2C bus frequency as 384 KHz, high time as 924 ns and
low time as 1680 ns.

Signed-off-by: FrankChu <frank_chu@pegatron.corp-partner.google.com>
Change-Id: I1525ecbf5baf9ae169afd7ce59079f395a2a45a8
Reviewed-on: https://review.coreboot.org/c/coreboot/+/50211
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Karthik Ramasubramanian <kramasub@google.com>
This commit is contained in:
FrankChu 2021-02-02 15:43:52 +08:00 committed by Patrick Georgi
parent b70ff52b83
commit 26b0bad671
1 changed files with 18 additions and 0 deletions
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18
src/mainboard/google/dedede/variants/galtic/overridetree.cb
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@ -19,12 +19,30 @@ chip soc/intel/jasperlake
}, },
.i2c[0] = { .i2c[0] = {
.speed = I2C_SPEED_FAST, .speed = I2C_SPEED_FAST,
.speed_config[0] = {
.speed = I2C_SPEED_FAST,
.scl_lcnt = 190,
.scl_hcnt = 100,
.sda_hold = 40,
}
}, },
.i2c[2] = { .i2c[2] = {
.speed = I2C_SPEED_FAST, .speed = I2C_SPEED_FAST,
.speed_config[0] = {
.speed = I2C_SPEED_FAST,
.scl_lcnt = 190,
.scl_hcnt = 100,
.sda_hold = 40,
}
}, },
.i2c[4] = { .i2c[4] = {
.speed = I2C_SPEED_FAST, .speed = I2C_SPEED_FAST,
.speed_config[0] = {
.speed = I2C_SPEED_FAST,
.scl_lcnt = 190,
.scl_hcnt = 100,
.sda_hold = 40,
}
}, },
}" }"