From 26b0bad671dd4b0248a7f5e041cfe831d1506e85 Mon Sep 17 00:00:00 2001 From: FrankChu Date: Tue, 2 Feb 2021 15:43:52 +0800 Subject: 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 Change-Id: I1525ecbf5baf9ae169afd7ce59079f395a2a45a8 Reviewed-on: https://review.coreboot.org/c/coreboot/+/50211 Tested-by: build bot (Jenkins) Reviewed-by: Karthik Ramasubramanian --- .../google/dedede/variants/galtic/overridetree.cb | 18 ++++++++++++++++++ 1 file changed, 18 insertions(+) (limited to 'src') diff --git a/src/mainboard/google/dedede/variants/galtic/overridetree.cb b/src/mainboard/google/dedede/variants/galtic/overridetree.cb index e981541122..9ed1dd0472 100644 --- a/src/mainboard/google/dedede/variants/galtic/overridetree.cb +++ b/src/mainboard/google/dedede/variants/galtic/overridetree.cb @@ -19,12 +19,30 @@ chip soc/intel/jasperlake }, .i2c[0] = { .speed = I2C_SPEED_FAST, + .speed_config[0] = { + .speed = I2C_SPEED_FAST, + .scl_lcnt = 190, + .scl_hcnt = 100, + .sda_hold = 40, + } }, .i2c[2] = { .speed = I2C_SPEED_FAST, + .speed_config[0] = { + .speed = I2C_SPEED_FAST, + .scl_lcnt = 190, + .scl_hcnt = 100, + .sda_hold = 40, + } }, .i2c[4] = { .speed = I2C_SPEED_FAST, + .speed_config[0] = { + .speed = I2C_SPEED_FAST, + .scl_lcnt = 190, + .scl_hcnt = 100, + .sda_hold = 40, + } }, }" -- cgit v1.2.3