mb/asus/p8z77-m_pro: Switch to overridetree setup

Tested with BUILD_TIMELESS=1, coreboot.rom for the Asus P8Z77-M PRO
remains identical when not adding the .config file in it.

Change-Id: I7f1d93e500153a9821e7ddb693d77c864c879f0d
Signed-off-by: Angel Pons <th3fanbus@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/54414
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Patrick Georgi <pgeorgi@google.com>
diff --git a/src/mainboard/asus/p8z77-series/Kconfig b/src/mainboard/asus/p8z77-series/Kconfig
index d963b09..0b28a7e 100644
--- a/src/mainboard/asus/p8z77-series/Kconfig
+++ b/src/mainboard/asus/p8z77-series/Kconfig
@@ -29,22 +29,10 @@
 	default "P8Z77-M PRO" if BOARD_ASUS_P8Z77_M_PRO
 	default "P8Z77-V LX2" if BOARD_ASUS_P8Z77_V_LX2
 
-# TODO: remove once all boards use overridetrees
-if BOARD_ASUS_P8Z77_M_PRO
-
-config DEVICETREE
-	string
-	default "variants/\$(CONFIG_VARIANT_DIR)/devicetree.cb"
-
-endif
-if !BOARD_ASUS_P8Z77_M_PRO
-
 config OVERRIDE_DEVICETREE
 	string
 	default "variants/\$(CONFIG_VARIANT_DIR)/overridetree.cb"
 
-endif
-
 config CMOS_DEFAULT_FILE
 	default "src/mainboard/\$(MAINBOARDDIR)/variants/\$(CONFIG_VARIANT_DIR)/cmos.default"
 
diff --git a/src/mainboard/asus/p8z77-series/variants/p8z77-m_pro/devicetree.cb b/src/mainboard/asus/p8z77-series/variants/p8z77-m_pro/devicetree.cb
deleted file mode 100644
index a915499..0000000
--- a/src/mainboard/asus/p8z77-series/variants/p8z77-m_pro/devicetree.cb
+++ /dev/null
@@ -1,93 +0,0 @@
-## 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
-		subsystemid 0x1043 0x84ca 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  end	# Internal graphics VGA controller
-
-		chip southbridge/intel/bd82x6x	# Intel Series 6 Cougar Point PCH
-			register "c2_latency" = "0x0065"
-			register "gen1_dec" = "0x000c0291"
-			register "gen4_dec" = "0x0000ff29"
-			register "pcie_port_coalesce" = "1"
-			register "sata_interface_speed_support" = "0x3" # 0x3=SATAIII
-			register "sata_port_map" = "0x3f" # Enable the six SATA ports
-			register "spi_lvscc" = "0x2005"
-			register "spi_uvscc" = "0x2005"
-			register "superspeed_capable_ports" = "0x0000000f"
-			register "xhci_overcurrent_mapping" = "0x00000c03"
-			register "xhci_switchable_ports" = "0x0000000f" # the 4 ports
-
-			device pci 14.0 on  end	# USB 3.0 Controller
-			device pci 16.0 on  end	# Management Engine Interface 1
-			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 off end	# Intel Gigabit Ethernet
-			device pci 1a.0 on  end	# USB2 EHCI 2
-			device pci 1b.0 on  end	# High Definition Audio controller
-			device pci 1c.0 on  end	# PCIe Port 1 PCIEX_16_3
-			device pci 1c.1 on  end	# PCIe Port 2 RTL8111F
-			device pci 1c.2 off end	# PCIe Port 3 unused
-			device pci 1c.3 off end	# PCIe Port 4 unused
-			device pci 1c.4 off end	# PCIe Port 5 unused
-			device pci 1c.5 on  end	# PCIe Port 6 ASM1042 USB3
-			device pci 1c.6 on  end	# PCIe Port 7 ASM1061 eSATA
-			device pci 1c.7 off end	# PCIe Port 8 unused
-			device pci 1d.0 on  end	# USB2 EHCI 1
-			device pci 1e.0 off end	# PCI bridge
-			device pci 1f.0 on	# LPC bridge
-				chip superio/nuvoton/nct6779d
-					device pnp 2e.1 off end	# Parallel
-					device pnp 2e.2 off end	# UART A
-					device pnp 2e.3 on	# UART B, IR
-						io 0x60 = 0x2f8		# COM2 address
-					end
-					device pnp 2e.5 on	# PS2 KBC
-						io  0x60 = 0x0060	# KBC1 base
-						io  0x62 = 0x0064	# KBC2 base
-						irq 0x70 = 1		# Keyboard IRQ
-						irq 0x72 = 12		# Mouse IRQ
-
-						# KBC 12Mhz/A20 speed/sw KBRST
-						drq 0xf0 = 0x82
-					end
-					device pnp 2e.6 off end	# CIR
-					device pnp 2e.7 on  end	# GPIOs 6-8
-					device pnp 2e.8 off end	# WDT1 GPIO 0-1
-					device pnp 2e.9 off end	# GPIO 1-8
-					device pnp 2e.a on	# ACPI
-						drq 0xe4 = 0x10	# Enable 3VSBS to power RAM on S3
-						drq 0xe7 = 0x10	# 0.5s S3 delay for compatibility
-					end
-					device pnp 2e.b off end	# HWM, LED
-					device pnp 2e.d off end	# WDT1
-					device pnp 2e.e off end	# CIR wake-up
-					device pnp 2e.f on	# GPIO PP/OD
-						drq 0xe6 = 0x7f	# GP7 PP
-					end
-					device pnp 2e.14 on end	# Port 80 UART
-					device pnp 2e.16 off end	# Deep sleep
-				end
-				chip drivers/pc80/tpm
-					device pnp 4e.0 on end	# TPM
-				end
-			end
-			device pci 1f.2 on  end	# SATA Controller 1
-			device pci 1f.3 on  end	# SMBus
-			device pci 1f.5 off end	# SATA Controller 2
-			device pci 1f.6 off end	# Thermal
-		end
-	end
-end
diff --git a/src/mainboard/asus/p8z77-series/variants/p8z77-m_pro/overridetree.cb b/src/mainboard/asus/p8z77-series/variants/p8z77-m_pro/overridetree.cb
new file mode 100644
index 0000000..9dcf2b7
--- /dev/null
+++ b/src/mainboard/asus/p8z77-series/variants/p8z77-m_pro/overridetree.cb
@@ -0,0 +1,59 @@
+## SPDX-License-Identifier: GPL-2.0-only
+
+chip northbridge/intel/sandybridge
+	device domain 0 on
+		subsystemid 0x1043 0x84ca inherit
+		chip southbridge/intel/bd82x6x
+			register "gen1_dec" = "0x000c0291"
+			register "gen4_dec" = "0x0000ff29"
+			register "pcie_port_coalesce" = "1"
+
+			device pci 1c.0 on  end	# PCIe Port 1 PCIEX_16_3
+			device pci 1c.1 on  end	# PCIe Port 2 RTL8111F
+			device pci 1c.2 off end	# PCIe Port 3 unused
+			device pci 1c.3 off end	# PCIe Port 4 unused
+			device pci 1c.4 off end	# PCIe Port 5 unused
+			device pci 1c.5 on  end	# PCIe Port 6 ASM1042 USB3
+			device pci 1c.6 on  end	# PCIe Port 7 ASM1061 eSATA
+			device pci 1c.7 off end	# PCIe Port 8 unused
+
+			device pci 1f.0 on	# LPC bridge
+				chip superio/nuvoton/nct6779d
+					device pnp 2e.1 off end	# Parallel
+					device pnp 2e.2 off end	# UART A
+					device pnp 2e.3 on	# UART B, IR
+						io 0x60 = 0x2f8		# COM2 address
+					end
+					device pnp 2e.5 on	# PS2 KBC
+						io  0x60 = 0x0060	# KBC1 base
+						io  0x62 = 0x0064	# KBC2 base
+						irq 0x70 = 1		# Keyboard IRQ
+						irq 0x72 = 12		# Mouse IRQ
+
+						# KBC 12Mhz/A20 speed/sw KBRST
+						drq 0xf0 = 0x82
+					end
+					device pnp 2e.6 off end	# CIR
+					device pnp 2e.7 on  end	# GPIOs 6-8
+					device pnp 2e.8 off end	# WDT1 GPIO 0-1
+					device pnp 2e.9 off end	# GPIO 1-8
+					device pnp 2e.a on	# ACPI
+						drq 0xe4 = 0x10	# Enable 3VSBS to power RAM on S3
+						drq 0xe7 = 0x10	# 0.5s S3 delay for compatibility
+					end
+					device pnp 2e.b off end	# HWM, LED
+					device pnp 2e.d off end	# WDT1
+					device pnp 2e.e off end	# CIR wake-up
+					device pnp 2e.f on	# GPIO PP/OD
+						drq 0xe6 = 0x7f	# GP7 PP
+					end
+					device pnp 2e.14 on end	# Port 80 UART
+					device pnp 2e.16 off end	# Deep sleep
+				end
+				chip drivers/pc80/tpm
+					device pnp 4e.0 on end	# TPM
+				end
+			end
+		end
+	end
+end