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-rw-r--r--src/mainboard/lenovo/t420/devicetree.cb50
1 files changed, 14 insertions, 36 deletions
diff --git a/src/mainboard/lenovo/t420/devicetree.cb b/src/mainboard/lenovo/t420/devicetree.cb
index 6deff6039c..53bd16f68a 100644
--- a/src/mainboard/lenovo/t420/devicetree.cb
+++ b/src/mainboard/lenovo/t420/devicetree.cb
@@ -37,13 +37,11 @@ chip northbridge/intel/sandybridge
register "pci_mmio_size" = "2048"
device domain 0 on
- device pci 00.0 on
- subsystemid 0x17aa 0x21ce
- end # host bridge
+ subsystemid 0x17aa 0x21ce inherit
+
+ device pci 00.0 on end # host bridge
device pci 01.0 on end # PCIe Bridge for discrete graphics
- device pci 02.0 on
- subsystemid 0x17aa 0x21ce
- end # Integrated Graphics Controller
+ device pci 02.0 on end # Integrated Graphics Controller
chip southbridge/intel/bd82x6x # Intel Series 6 Cougar Point PCH
# GPI routing
@@ -67,6 +65,7 @@ chip northbridge/intel/sandybridge
# Enable zero-based linear PCIe root port functions
register "pcie_port_coalesce" = "1"
+
register "c2_latency" = "101" # c2 not supported
# device specific SPI configuration
@@ -77,46 +76,30 @@ chip northbridge/intel/sandybridge
device pci 16.1 off end # Management Engine Interface 2
device pci 16.2 off end # Management Engine IDE-R
device pci 16.3 off end # Management Engine KT
- device pci 19.0 on
- subsystemid 0x17aa 0x21ce
- end # Intel Gigabit Ethernet
- device pci 1a.0 on
- subsystemid 0x17aa 0x21ce
- end # USB Enhanced Host Controller #2
- device pci 1b.0 on
- subsystemid 0x17aa 0x21ce
- end # High Definition Audio Controller
+ device pci 19.0 on end # Intel Gigabit Ethernet
+ device pci 1a.0 on end # USB Enhanced Host Controller #2
+ device pci 1b.0 on end # High Definition Audio Controller
device pci 1c.0 off end # PCIe Port #1
- device pci 1c.1 on
- subsystemid 0x17aa 0x21ce
- end # PCIe Port #2 Integrated Wireless LAN
+ device pci 1c.1 on end # PCIe Port #2 Integrated Wireless LAN
device pci 1c.2 off end # PCIe Port #3
device pci 1c.3 on
- subsystemid 0x17aa 0x21ce
smbios_slot_desc "7" "3" "ExpressCard Slot" "8"
end # PCIe Port #4 ExpressCard
device pci 1c.4 on
- subsystemid 0x17aa 0x21ce
chip drivers/ricoh/rce822
register "sdwppol" = "1"
register "disable_mask" = "0x87"
- device pci 00.0 on
- subsystemid 0x17aa 0x21ce
- end
+ device pci 00.0 on end
end
end # PCIe Port #5 (Ricoh SD & FW)
device pci 1c.5 off end # PCIe Port #6 Intel Gigabit Ethernet PHY (not PCIe)
device pci 1c.6 off end # PCIe Port #7
device pci 1c.7 off end # PCIe Port #8
- device pci 1d.0 on
- subsystemid 0x17aa 0x21ce
- end # USB Enhanced Host Controller #1
+ device pci 1d.0 on end # USB Enhanced Host Controller #1
device pci 1e.0 off end # PCI bridge
device pci 1f.0 on
- subsystemid 0x17aa 0x21ce
chip ec/lenovo/pmh7
- device pnp ff.1 on # dummy
- end
+ device pnp ff.1 on end # dummy
register "backlight_enable" = "0x01"
register "dock_event_enable" = "0x01"
end
@@ -176,11 +159,8 @@ chip northbridge/intel/sandybridge
register "has_thinker1" = "1"
end
end # LPC Controller
- device pci 1f.2 on
- subsystemid 0x17aa 0x21ce
- end # 6 port SATA AHCI Controller
+ device pci 1f.2 on end # 6 port SATA AHCI Controller
device pci 1f.3 on
- subsystemid 0x17aa 0x21ce
# eeprom, 8 virtual devices, same chip
chip drivers/i2c/at24rf08c
device i2c 54 on end
@@ -194,9 +174,7 @@ chip northbridge/intel/sandybridge
end
end # SMBus Controller
device pci 1f.5 off end # SATA Controller 2
- device pci 1f.6 on
- subsystemid 0x17aa 0x21ce
- end # Thermal
+ device pci 1f.6 on end # Thermal
end
end
end