diff --git a/arch/x86/dts/minnowmax.dts b/arch/x86/dts/minnowmax.dts
index d0c0fe6..daac24e 100644
--- a/arch/x86/dts/minnowmax.dts
+++ b/arch/x86/dts/minnowmax.dts
@@ -7,6 +7,7 @@
 /dts-v1/;
 
 #include <dt-bindings/gpio/x86-gpio.h>
+#include <dt-bindings/interrupt-router/intel-irq.h>
 
 /include/ "skeleton.dtsi"
 /include/ "serial.dtsi"
@@ -117,9 +118,71 @@
 		#address-cells = <3>;
 		#size-cells = <2>;
 		u-boot,dm-pre-reloc;
-		ranges = <0x02000000 0x0 0xd0000000 0xd0000000 0 0x10000000
-			0x42000000 0x0 0xc0000000 0xc0000000 0 0x10000000
-			0x01000000 0x0 0x2000 0x2000 0 0xe000>;
+		ranges = <0x02000000 0x0 0x80000000 0x80000000 0 0x40000000
+			  0x42000000 0x0 0xc0000000 0xc0000000 0 0x20000000
+			  0x01000000 0x0 0x2000 0x2000 0 0xe000>;
+
+		irq-router@1f,0 {
+			reg = <0x0000f800 0 0 0 0>;
+			compatible = "intel,irq-router";
+			intel,pirq-config = "ibase";
+			intel,ibase-offset = <0x50>;
+			intel,pirq-link = <8 8>;
+			intel,pirq-mask = <0xdee0>;
+			intel,pirq-routing = <
+				/* BayTrail PCI devices */
+				PCI_BDF(0, 2, 0) INTA PIRQA
+				PCI_BDF(0, 3, 0) INTA PIRQA
+				PCI_BDF(0, 16, 0) INTA PIRQA
+				PCI_BDF(0, 17, 0) INTA PIRQA
+				PCI_BDF(0, 18, 0) INTA PIRQA
+				PCI_BDF(0, 19, 0) INTA PIRQA
+				PCI_BDF(0, 20, 0) INTA PIRQA
+				PCI_BDF(0, 21, 0) INTA PIRQA
+				PCI_BDF(0, 22, 0) INTA PIRQA
+				PCI_BDF(0, 23, 0) INTA PIRQA
+				PCI_BDF(0, 24, 0) INTA PIRQA
+				PCI_BDF(0, 24, 1) INTC PIRQC
+				PCI_BDF(0, 24, 2) INTD PIRQD
+				PCI_BDF(0, 24, 3) INTB PIRQB
+				PCI_BDF(0, 24, 4) INTA PIRQA
+				PCI_BDF(0, 24, 5) INTC PIRQC
+				PCI_BDF(0, 24, 6) INTD PIRQD
+				PCI_BDF(0, 24, 7) INTB PIRQB
+				PCI_BDF(0, 26, 0) INTA PIRQA
+				PCI_BDF(0, 27, 0) INTA PIRQA
+				PCI_BDF(0, 28, 0) INTA PIRQA
+				PCI_BDF(0, 28, 1) INTB PIRQB
+				PCI_BDF(0, 28, 2) INTC PIRQC
+				PCI_BDF(0, 28, 3) INTD PIRQD
+				PCI_BDF(0, 29, 0) INTA PIRQA
+				PCI_BDF(0, 30, 0) INTA PIRQA
+				PCI_BDF(0, 30, 1) INTD PIRQD
+				PCI_BDF(0, 30, 2) INTB PIRQB
+				PCI_BDF(0, 30, 3) INTC PIRQC
+				PCI_BDF(0, 30, 4) INTD PIRQD
+				PCI_BDF(0, 30, 5) INTB PIRQB
+				PCI_BDF(0, 31, 3) INTB PIRQB
+
+				/* PCIe root ports downstream interrupts */
+				PCI_BDF(1, 0, 0) INTA PIRQA
+				PCI_BDF(1, 0, 0) INTB PIRQB
+				PCI_BDF(1, 0, 0) INTC PIRQC
+				PCI_BDF(1, 0, 0) INTD PIRQD
+				PCI_BDF(2, 0, 0) INTA PIRQB
+				PCI_BDF(2, 0, 0) INTB PIRQC
+				PCI_BDF(2, 0, 0) INTC PIRQD
+				PCI_BDF(2, 0, 0) INTD PIRQA
+				PCI_BDF(3, 0, 0) INTA PIRQC
+				PCI_BDF(3, 0, 0) INTB PIRQD
+				PCI_BDF(3, 0, 0) INTC PIRQA
+				PCI_BDF(3, 0, 0) INTD PIRQB
+				PCI_BDF(4, 0, 0) INTA PIRQD
+				PCI_BDF(4, 0, 0) INTB PIRQA
+				PCI_BDF(4, 0, 0) INTC PIRQB
+				PCI_BDF(4, 0, 0) INTD PIRQC
+			>;
+		};
 	};
 
 	fsp {
diff --git a/configs/minnowmax_defconfig b/configs/minnowmax_defconfig
index 578fcce..f3cf91b 100644
--- a/configs/minnowmax_defconfig
+++ b/configs/minnowmax_defconfig
@@ -5,7 +5,8 @@
 CONFIG_HAVE_INTEL_ME=y
 CONFIG_SMP=y
 CONFIG_HAVE_VGA_BIOS=y
-CONFIG_GENERATE_SFI_TABLE=y
+CONFIG_GENERATE_PIRQ_TABLE=y
+CONFIG_GENERATE_MP_TABLE=y
 CONFIG_CMD_CPU=y
 # CONFIG_CMD_IMLS is not set
 # CONFIG_CMD_FLASH is not set
diff --git a/include/configs/minnowmax.h b/include/configs/minnowmax.h
index 64fa676..aeb04b9 100644
--- a/include/configs/minnowmax.h
+++ b/include/configs/minnowmax.h
@@ -15,6 +15,7 @@
 
 #define CONFIG_SYS_MONITOR_LEN		(1 << 20)
 #define CONFIG_ARCH_EARLY_INIT_R
+#define CONFIG_ARCH_MISC_INIT
 
 #define CONFIG_SMSC_LPC47M