From 88418a74cf3c6f6cc4dc5c81cb2820a760f0c3ff Mon Sep 17 00:00:00 2001 From: Seunghwan Kim Date: Tue, 12 Jan 2021 09:56:50 +0900 Subject: mb/google/dedede/var/sasuke: Add USB2 PHY parameters This change adds fine-tuned USB2 PHY parameters for sasuke. BUG=176060155 TEST=Built and verified USB2 eye diagram test result Change-Id: Id374ed238d92077ca28c1162fd9f070029ee71bd Signed-off-by: Seunghwan Kim Reviewed-on: https://review.coreboot.org/c/coreboot/+/49321 Reviewed-by: Karthik Ramasubramanian Tested-by: build bot (Jenkins) --- .../google/dedede/variants/sasuke/overridetree.cb | 34 ++++++++++++++++++++++ 1 file changed, 34 insertions(+) (limited to 'src/mainboard/google/dedede') diff --git a/src/mainboard/google/dedede/variants/sasuke/overridetree.cb b/src/mainboard/google/dedede/variants/sasuke/overridetree.cb index d3b0dd74bf..f4d385e614 100644 --- a/src/mainboard/google/dedede/variants/sasuke/overridetree.cb +++ b/src/mainboard/google/dedede/variants/sasuke/overridetree.cb @@ -1,7 +1,41 @@ chip soc/intel/jasperlake # USB Port Configuration + register "usb2_ports[0]" = "{ + .enable = 1, + .ocpin = OC_SKIP, + .tx_bias = USB2_BIAS_0MV, + .tx_emp_enable = USB2_DE_EMP_ON_PRE_EMP_ON, + .pre_emp_bias = USB2_BIAS_28P15MV, + .pre_emp_bit = USB2_HALF_BIT_PRE_EMP, + }" # Type-C Port C0 + register "usb2_ports[1]" = "{ + .enable = 1, + .ocpin = OC_SKIP, + .tx_bias = USB2_BIAS_16P9MV, + .tx_emp_enable = USB2_DE_EMP_ON_PRE_EMP_ON, + .pre_emp_bias = USB2_BIAS_39P35MV, + .pre_emp_bit = USB2_HALF_BIT_PRE_EMP, + }" # Type-C Port C1 + register "usb2_ports[2]" = "{ + .enable = 1, + .ocpin = OC_SKIP, + .tx_bias = USB2_BIAS_16P9MV, + .tx_emp_enable = USB2_DE_EMP_ON_PRE_EMP_ON, + .pre_emp_bias = USB2_BIAS_39P35MV, + .pre_emp_bit = USB2_HALF_BIT_PRE_EMP, + }" # Type-A Port A0 + register "usb2_ports[3]" = "{ + .enable = 1, + .ocpin = OC_SKIP, + .tx_bias = USB2_BIAS_0MV, + .tx_emp_enable = USB2_DE_EMP_ON_PRE_EMP_ON, + .pre_emp_bias = USB2_BIAS_11P25MV, + .pre_emp_bit = USB2_HALF_BIT_PRE_EMP, + }" # Type-A Port A1 + register "usb2_ports[4]" = "USB2_PORT_EMPTY" register "usb2_ports[5]" = "USB2_PORT_MID(OC_SKIP)" # Camera + register "usb2_ports[7]" = "USB2_PORT_EMPTY" # Intel Common SoC Config #+-------------------+---------------------------+ -- cgit v1.2.3