Patrick Georgi has submitted this change. ( https://review.coreboot.org/c/coreboot/+/38458 )
Change subject: mainboard/google/puff: update SATA strength ......................................................................
mainboard/google/puff: update SATA strength
Base on SATA SI report to fine tune the strength for port 1.
BRANCH=none BUG=b:147351936 TEST=build and test SATA port works fine.
Change-Id: Ib82b7e5df32b4ce794682781f33c44dfeb6e68bf Signed-off-by: Tim Chen tim-chen@quanta.corp-partner.google.com Reviewed-on: https://review.coreboot.org/c/coreboot/+/38458 Tested-by: build bot (Jenkins) no-reply@coreboot.org Reviewed-by: Edward O'Callaghan quasisec@chromium.org --- M src/mainboard/google/hatch/variants/puff/overridetree.cb 1 file changed, 5 insertions(+), 0 deletions(-)
Approvals: build bot (Jenkins): Verified Edward O'Callaghan: Looks good to me, approved
diff --git a/src/mainboard/google/hatch/variants/puff/overridetree.cb b/src/mainboard/google/hatch/variants/puff/overridetree.cb index 402b98b..2e40ba9 100644 --- a/src/mainboard/google/hatch/variants/puff/overridetree.cb +++ b/src/mainboard/google/hatch/variants/puff/overridetree.cb @@ -171,6 +171,11 @@ # GPIO for SD card detect register "sdcard_cd_gpio" = "vSD3_CD_B"
+ # SATA port 1 Gen3 Strength + # Port1 Tx De-Emphasis = 20*log(0x20/64) = -6dB + register "sata_port[1].TxGen3DeEmphEnable" = "1" + register "sata_port[1].TxGen3DeEmph" = "0x20" + device domain 0 on device pci 14.0 on chip drivers/usb/acpi