From ba081ef50dd6cd62de1165e8315aca9b3a40c337 Mon Sep 17 00:00:00 2001 From: Duncan Laurie Date: Sun, 18 Jan 2015 14:14:17 -0800 Subject: samus: Adjust SATA Gen3 TX voltage amplitude Reduce the SATA Gen3 TX voltage amplitude by 210mV based on the provided test results to help with SATA validation. BUG=chrome-os-partner:34121 BRANCH=samus TEST=build and boot on samus and ensure SATA is still working, firmware image will be provided for full validation. Change-Id: I574d2f457b7b6831a339602a4165e959a0e2ee7d Signed-off-by: Stefan Reinauer Original-Commit-Id: 9500ec152d8f9c90513811b1a92d1a8c155f514a Original-Change-Id: I233fa1a9a7f2877a97ef6834304680f82b958e82 Original-Signed-off-by: Duncan Laurie Original-Reviewed-on: https://chromium-review.googlesource.com/241800 Original-Reviewed-by: Shawn N Reviewed-on: http://review.coreboot.org/9496 Tested-by: build bot (Jenkins) Reviewed-by: Patrick Georgi --- src/mainboard/google/samus/devicetree.cb | 1 + 1 file changed, 1 insertion(+) (limited to 'src/mainboard/google/samus') diff --git a/src/mainboard/google/samus/devicetree.cb b/src/mainboard/google/samus/devicetree.cb index a511c27e9a..1d7d5a1033 100644 --- a/src/mainboard/google/samus/devicetree.cb +++ b/src/mainboard/google/samus/devicetree.cb @@ -43,6 +43,7 @@ chip soc/intel/broadwell register "gpe0_en_4" = "0x00000000" register "sata_port_map" = "0x1" + register "sata_port0_gen3_tx" = "0x72" register "sio_acpi_mode" = "1" # Set I2C0 to 1.8V -- cgit v1.2.3