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mb/lenovo/t520: Fix devicetree

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Disable unused PCI devices.
Reduces idle power by around 0.5Watt.

Tested on Lenovo T520.

Change-Id: I6990dc5810084261b75d2a327b6a103be44fd4cc
Signed-off-by: Patrick Rudolph <patrick.rudolph@9elements.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/32317
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Arthur Heymans <arthur@aheymans.xyz>
This commit is contained in:
Patrick Rudolph 2019-04-14 14:39:34 +02:00 committed by Patrick Rudolph
parent 976e3e9ae6
commit 49df54a1dc
1 changed files with 4 additions and 0 deletions
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src/mainboard/lenovo/t520/variants/t520/devicetree.cb
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@ -88,6 +88,8 @@ chip northbridge/intel/sandybridge
device pci 1c.6 off end # PCIe Port #7 USB 3.0 only W520 device pci 1c.6 off end # PCIe Port #7 USB 3.0 only W520
device pci 1c.7 off end # PCIe Port #8 device pci 1c.7 off end # PCIe Port #8
device pci 1d.0 on end # USB2 EHCI #1 device pci 1d.0 on end # USB2 EHCI #1
device pci 1e.0 off end # PCI-2-PCI bridge
device pci 1f.0 on #LPC bridge device pci 1f.0 on #LPC bridge
chip ec/lenovo/pmh7 chip ec/lenovo/pmh7
device pnp ff.1 on # dummy device pnp ff.1 on # dummy
@ -167,6 +169,8 @@ chip northbridge/intel/sandybridge
device i2c 5f on end device i2c 5f on end
end end
end # SMBus end # SMBus
device pci 1f.5 off end # IDE controller
device pci 1f.6 off end # Thermal controller
end end
end end
end end