diff --git a/src/mainboard/asus/p8z77-series/devicetree.cb b/src/mainboard/asus/p8z77-series/devicetree.cb
new file mode 100644
index 0000000..1b9d14d
--- /dev/null
+++ b/src/mainboard/asus/p8z77-series/devicetree.cb
@@ -0,0 +1,56 @@
+## SPDX-License-Identifier: GPL-2.0-only
+
+chip northbridge/intel/sandybridge
+	device cpu_cluster 0 on
+		chip cpu/intel/model_206ax
+			register "acpi_c1" = "1"
+			register "acpi_c2" = "3"
+			register "acpi_c3" = "5"
+			device lapic 0 on end
+			device lapic 0xacac off end
+		end
+	end
+	device domain 0 on
+		device pci 00.0 on  end		# Host bridge
+		device pci 01.0 on  end		# PCIEX16_1
+		device pci 02.0 on  end		# iGPU
+
+		chip southbridge/intel/bd82x6x
+			register "c2_latency" = "0x0065"
+			register "sata_interface_speed_support" = "0x3"
+			register "sata_port_map" = "0x3f"
+			register "spi_lvscc" = "0x2005"
+			register "spi_uvscc" = "0x2005"
+			register "superspeed_capable_ports" = "0x0000000f"
+			register "xhci_overcurrent_mapping" = "0x00000c03"
+			register "xhci_switchable_ports"    = "0x0000000f"
+
+			device pci 14.0 on  end		# xHCI
+			device pci 16.0 on  end		# MEI #1
+			device pci 16.1 off end		# MEI #2
+			device pci 16.2 off end		# ME IDE-R
+			device pci 16.3 off end		# ME KT
+			device pci 19.0 off end		# Intel GbE
+			device pci 1a.0 on  end		# EHCI #2
+			device pci 1b.0 on  end		# HD Audio
+
+			device pci 1c.0 off end		# RP #1
+			device pci 1c.1 off end		# RP #2
+			device pci 1c.2 off end		# RP #3
+			device pci 1c.3 off end		# RP #4
+			device pci 1c.4 off end		# RP #5
+			device pci 1c.5 off end		# RP #6
+			device pci 1c.6 off end		# RP #7
+			device pci 1c.7 off end		# RP #8
+
+			device pci 1d.0 on  end		# EHCI #1
+			device pci 1e.0 off end		# PCI bridge
+			device pci 1f.0 on		# LPC bridge
+			end
+			device pci 1f.2 on  end		# SATA (AHCI)
+			device pci 1f.3 on  end		# SMBus
+			device pci 1f.5 off end		# SATA (Legacy)
+			device pci 1f.6 off end		# Thermal
+		end
+	end
+end