From 5b574e1c859a095ecdf2728a1a6db2d854bbb668 Mon Sep 17 00:00:00 2001 From: Eric Lai Date: Thu, 23 Apr 2020 13:52:54 +0800 Subject: mb/google/deltaur: Change H1 I2C speed to STANDARD MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Currently, Deltaur’s I2C speed has not been tuned yet, so slow down the H1 I2C to avoid I2C error for short term. Error logs: Reading cr50 TPM mode I2C receive timeout I2C read failed: bus 3 addr 0x50 BUG=b:154310066 TEST=Check H1 has no I2C error occurring and can be updated by gsctool. Signed-off-by: Eric Lai Change-Id: I85a63c1ab9a51d254873377a36d56823af11f0a9 Reviewed-on: https://review.coreboot.org/c/coreboot/+/40644 Reviewed-by: Tim Wawrzynczak Tested-by: build bot (Jenkins) --- src/mainboard/google/deltaur/variants/baseboard/devicetree.cb | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'src/mainboard/google/deltaur/variants') diff --git a/src/mainboard/google/deltaur/variants/baseboard/devicetree.cb b/src/mainboard/google/deltaur/variants/baseboard/devicetree.cb index e0b3d500d9..498266efdd 100644 --- a/src/mainboard/google/deltaur/variants/baseboard/devicetree.cb +++ b/src/mainboard/google/deltaur/variants/baseboard/devicetree.cb @@ -92,7 +92,7 @@ chip soc/intel/tigerlake .speed = I2C_SPEED_FAST, }, .i2c[3] = { - .speed = I2C_SPEED_FAST, + .speed = I2C_SPEED_STANDARD, .early_init = 1, }, .i2c[5] = { -- cgit v1.2.3