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mb/starlabs/laptop: Enable rtd3 for SSD on TGL 

Enabling rtd3 reduces power consumption when the SSD is idle.

Tested and verified on the StarBook Mk V (TGL), using PowerTop
on Manjaro 21.2.5 GNOME at 20% Brightness.

Signed-off-by: Stephen Edworthy <stephen@starlabs.systems>
Change-Id: I0d8aa185a322bb8d1aba51ccaab03c521cec2770
Reviewed-on: https://review.coreboot.org/c/coreboot/+/63254
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Paul Menzel <paulepanter@mailbox.org>
Reviewed-by: Sean Rhodes <sean@starlabs.systems>
This commit is contained in:
Stephen Edworthy 2022-03-31 09:09:32 +01:00 committed by Felix Held
parent a6fd7105e8
commit 66d94ba4c0
1 changed files with 6 additions and 0 deletions
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6
src/mainboard/starlabs/labtop/variants/tgl/devicetree.cb
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@ -182,6 +182,12 @@ chip soc/intel/tigerlake
register "PcieClkSrcClkReq[3]" = "3"
register "PcieRpSlotImplemented[8]" = "1"
smbios_slot_desc "SlotTypeM2Socket3" "SlotLengthOther" "M.2/M 2280" "SlotDataBusWidth4X"
chip soc/intel/common/block/pcie/rtd3
register "enable_gpio" = "ACPI_GPIO_OUTPUT_ACTIVE_HIGH(GPP_D16)"
register "reset_gpio" = "ACPI_GPIO_OUTPUT_ACTIVE_LOW(GPP_A11)"
register "srcclk_pin" = "3"
device generic 0 on end
end
end
device pci 1d.1 off end # PCI Express Port 10
device pci 1d.2 off end # PCI Express Port 11