diff --git a/src/acpi/acpi_apic.c b/src/acpi/acpi_apic.c
index d6937fc..2b3402a 100644
--- a/src/acpi/acpi_apic.c
+++ b/src/acpi/acpi_apic.c
@@ -100,8 +100,8 @@
 {
 	static u32 gsi_base;
 	u32 my_base;
-	u8 id = get_ioapic_id((void *)(uintptr_t)addr);
-	u8 count = ioapic_get_max_vectors((void *)(uintptr_t)addr);
+	u8 id = get_ioapic_id((uintptr_t)addr);
+	u8 count = ioapic_get_max_vectors((uintptr_t)addr);
 
 	my_base = gsi_base;
 	gsi_base += count;
diff --git a/src/acpi/acpi_dmar.c b/src/acpi/acpi_dmar.c
index 9a5ebed..3853142 100644
--- a/src/acpi/acpi_dmar.c
+++ b/src/acpi/acpi_dmar.c
@@ -183,7 +183,7 @@
 unsigned long acpi_create_dmar_ds_ioapic_from_hw(unsigned long current,
 						 u32 addr, u8 bus, u8 dev, u8 fn)
 {
-	u8 enumeration_id = get_ioapic_id((void *)(uintptr_t)addr);
+	u8 enumeration_id = get_ioapic_id((uintptr_t)addr);
 	return acpi_create_dmar_ds(current,
 			SCOPE_IOAPIC, enumeration_id, bus, dev, fn);
 }
diff --git a/src/arch/x86/include/arch/ioapic.h b/src/arch/x86/include/arch/ioapic.h
index 9dc2339..530128a 100644
--- a/src/arch/x86/include/arch/ioapic.h
+++ b/src/arch/x86/include/arch/ioapic.h
@@ -4,24 +4,23 @@
 #define __I386_ARCH_IOAPIC_H
 
 #define IO_APIC_ADDR	0xfec00000
-#define VIO_APIC_VADDR	((u8 *)IO_APIC_ADDR)
 
 #ifndef __ACPI__
 
 #include <types.h>
 
-u8 get_ioapic_id(void *ioapic_base);
-u8 get_ioapic_version(void *ioapic_base);
+u8 get_ioapic_id(uintptr_t ioapic_base);
+u8 get_ioapic_version(uintptr_t ioapic_base);
 
-unsigned int ioapic_get_max_vectors(void *ioapic_base);
-void ioapic_set_max_vectors(void *ioapic_base, int mre_count);
-void ioapic_lock_max_vectors(void *ioapic_base);
+unsigned int ioapic_get_max_vectors(uintptr_t ioapic_base);
+void ioapic_set_max_vectors(uintptr_t ioapic_base, int mre_count);
+void ioapic_lock_max_vectors(uintptr_t ioapic_base);
 
-void setup_ioapic(void *ioapic_base, u8 ioapic_id);
-void register_new_ioapic(void *ioapic_base);
-void register_new_ioapic_gsi0(void *ioapic_base);
+void setup_ioapic(uintptr_t ioapic_base, u8 ioapic_id);
+void register_new_ioapic(uintptr_t ioapic_base);
+void register_new_ioapic_gsi0(uintptr_t ioapic_base);
 
-void ioapic_set_boot_config(void *ioapic_base, bool irq_on_fsb);
+void ioapic_set_boot_config(uintptr_t ioapic_base, bool irq_on_fsb);
 
 void ioapic_get_sci_pin(u8 *gsi, u8 *irq, u8 *flags);
 #endif
diff --git a/src/arch/x86/include/arch/smp/mpspec.h b/src/arch/x86/include/arch/smp/mpspec.h
index 0b5ca47..80ae7e8 100644
--- a/src/arch/x86/include/arch/smp/mpspec.h
+++ b/src/arch/x86/include/arch/smp/mpspec.h
@@ -6,6 +6,7 @@
 #include <acpi/acpi.h>
 #include <device/device.h>
 #include <cpu/x86/lapic_def.h>
+#include <types.h>
 
 /*
  * Structure definitions for SMP machines following the
@@ -227,7 +228,7 @@
 void smp_write_processors(struct mp_config_table *mc);
 
 /* Call smp_write_ioapic() and return IOAPIC ID field. */
-u8 smp_write_ioapic_from_hw(struct mp_config_table *mc, void *apicaddr);
+u8 smp_write_ioapic_from_hw(struct mp_config_table *mc, uintptr_t apicaddr);
 
 void smp_write_intsrc(struct mp_config_table *mc,
 	u8 irqtype, u16 irqflag, u8 srcbus, u8 srcbusirq,
diff --git a/src/arch/x86/ioapic.c b/src/arch/x86/ioapic.c
index df97a50..863317f 100644
--- a/src/arch/x86/ioapic.c
+++ b/src/arch/x86/ioapic.c
@@ -5,6 +5,8 @@
 #include <arch/ioapic.h>
 #include <console/console.h>
 #include <cpu/x86/lapic.h>
+#include <inttypes.h>
+#include <types.h>
 
 #define ALL		(0xff << 24)
 #define NONE		(0)
@@ -21,19 +23,19 @@
 #define SMI		(2 << 8)
 #define INT		(1 << 8)
 
-static u32 io_apic_read(void *ioapic_base, u32 reg)
+static u32 io_apic_read(uintptr_t ioapic_base, u32 reg)
 {
-	write32(ioapic_base, reg);
-	return read32(ioapic_base + 0x10);
+	write32p(ioapic_base, reg);
+	return read32p(ioapic_base + 0x10);
 }
 
-static void io_apic_write(void *ioapic_base, u32 reg, u32 value)
+static void io_apic_write(uintptr_t ioapic_base, u32 reg, u32 value)
 {
-	write32(ioapic_base, reg);
-	write32(ioapic_base + 0x10, value);
+	write32p(ioapic_base, reg);
+	write32p(ioapic_base + 0x10, value);
 }
 
-static void write_vector(void *ioapic_base, u8 vector, u32 high, u32 low)
+static void write_vector(uintptr_t ioapic_base, u8 vector, u32 high, u32 low)
 {
 	io_apic_write(ioapic_base, vector * 2 + 0x10, low);
 	io_apic_write(ioapic_base, vector * 2 + 0x11, high);
@@ -44,7 +46,7 @@
 
 /* Bits 23-16 of register 0x01 specify the maximum redirection entry, which
  * is the number of interrupts minus 1. */
-unsigned int ioapic_get_max_vectors(void *ioapic_base)
+unsigned int ioapic_get_max_vectors(uintptr_t ioapic_base)
 {
 	u32 reg;
 	u8 count;
@@ -63,7 +65,7 @@
 /* Set maximum number of redirection entries (MRE). It is write-once register
  * for some chipsets, and a negative mre_count will lock it to the number
  * of vectors read from the register. */
-void ioapic_set_max_vectors(void *ioapic_base, int mre_count)
+void ioapic_set_max_vectors(uintptr_t ioapic_base, int mre_count)
 {
 	u32 reg;
 	u8 count;
@@ -77,17 +79,17 @@
 	io_apic_write(ioapic_base, 0x01, reg);
 }
 
-void ioapic_lock_max_vectors(void *ioapic_base)
+void ioapic_lock_max_vectors(uintptr_t ioapic_base)
 {
 	ioapic_set_max_vectors(ioapic_base, -1);
 }
 
-static void clear_vectors(void *ioapic_base, u8 first, u8 last)
+static void clear_vectors(uintptr_t ioapic_base, u8 first, u8 last)
 {
 	u32 low, high;
 	u8 i;
 
-	printk(BIOS_DEBUG, "IOAPIC: Clearing IOAPIC at %p\n", ioapic_base);
+	printk(BIOS_DEBUG, "IOAPIC: Clearing IOAPIC at %" PRIxPTR "\n", ioapic_base);
 
 	low = INT_DISABLED;
 	high = NONE;
@@ -101,7 +103,7 @@
 	}
 }
 
-static void route_i8259_irq0(void *ioapic_base)
+static void route_i8259_irq0(uintptr_t ioapic_base)
 {
 	u32 bsp_lapicid = lapicid();
 	u32 low, high;
@@ -123,11 +125,11 @@
 	}
 }
 
-static void set_ioapic_id(void *ioapic_base, u8 ioapic_id)
+static void set_ioapic_id(uintptr_t ioapic_base, u8 ioapic_id)
 {
 	int i;
 
-	printk(BIOS_DEBUG, "IOAPIC: Initializing IOAPIC at %p\n",
+	printk(BIOS_DEBUG, "IOAPIC: Initializing IOAPIC at %" PRIxPTR "\n",
 	       ioapic_base);
 	printk(BIOS_DEBUG, "IOAPIC: ID = 0x%02x\n", ioapic_id);
 
@@ -141,7 +143,7 @@
 
 }
 
-u8 get_ioapic_id(void *ioapic_base)
+u8 get_ioapic_id(uintptr_t ioapic_base)
 {
 	/*
 	 * According to 82093AA I/O ADVANCED PROGRAMMABLE INTERRUPT CONTROLLER (IOAPIC)
@@ -151,12 +153,12 @@
 	return (io_apic_read(ioapic_base, 0x00) >> 24) & 0xff;
 }
 
-u8 get_ioapic_version(void *ioapic_base)
+u8 get_ioapic_version(uintptr_t ioapic_base)
 {
 	return io_apic_read(ioapic_base, 0x01) & 0xff;
 }
 
-void ioapic_set_boot_config(void *ioapic_base, bool irq_on_fsb)
+void ioapic_set_boot_config(uintptr_t ioapic_base, bool irq_on_fsb)
 {
 	if (irq_on_fsb) {
 		/*
@@ -173,19 +175,19 @@
 	}
 }
 
-void setup_ioapic(void *ioapic_base, u8 ioapic_id)
+void setup_ioapic(uintptr_t ioapic_base, u8 ioapic_id)
 {
 	set_ioapic_id(ioapic_base, ioapic_id);
 	clear_vectors(ioapic_base, 0, ioapic_get_max_vectors(ioapic_base) - 1);
 	route_i8259_irq0(ioapic_base);
 }
 
-void register_new_ioapic_gsi0(void *ioapic_base)
+void register_new_ioapic_gsi0(uintptr_t ioapic_base)
 {
 	setup_ioapic(ioapic_base, 0);
 }
 
-void register_new_ioapic(void *ioapic_base)
+void register_new_ioapic(uintptr_t ioapic_base)
 {
 	static u8 ioapic_id;
 	ioapic_id++;
diff --git a/src/arch/x86/mpspec.c b/src/arch/x86/mpspec.c
index ac3fc79..f5242d3 100644
--- a/src/arch/x86/mpspec.c
+++ b/src/arch/x86/mpspec.c
@@ -11,8 +11,8 @@
 #include <device/pci_def.h>
 #include <device/pci_ids.h>
 #include <identity.h>
-#include <stdint.h>
 #include <string.h>
+#include <types.h>
 
 /* Initialize the specified "mc" struct with initial values. */
 void mptable_init(struct mp_config_table *mc)
@@ -207,7 +207,7 @@
  * APIC Flags:EN, Address
  */
 static void smp_write_ioapic(struct mp_config_table *mc,
-	u8 id, u8 ver, void *apicaddr)
+	u8 id, u8 ver, uintptr_t apicaddr)
 {
 	struct mpc_config_ioapic *mpc;
 	mpc = smp_next_mpc_entry(mc);
@@ -216,11 +216,11 @@
 	mpc->mpc_apicid = id;
 	mpc->mpc_apicver = ver;
 	mpc->mpc_flags = MPC_APIC_USABLE;
-	mpc->mpc_apicaddr = apicaddr;
+	mpc->mpc_apicaddr = (void *)apicaddr;
 	smp_add_mpc_entry(mc, sizeof(*mpc));
 }
 
-u8 smp_write_ioapic_from_hw(struct mp_config_table *mc, void *apicaddr)
+u8 smp_write_ioapic_from_hw(struct mp_config_table *mc, uintptr_t apicaddr)
 {
 	u8 id = get_ioapic_id(apicaddr);
 	u8 ver = get_ioapic_version(apicaddr);
diff --git a/src/mainboard/apple/macbook21/mptable.c b/src/mainboard/apple/macbook21/mptable.c
index 823c856..fcf46a2 100644
--- a/src/mainboard/apple/macbook21/mptable.c
+++ b/src/mainboard/apple/macbook21/mptable.c
@@ -18,7 +18,7 @@
 	mptable_write_buses(mc, NULL, &isa_bus);
 
 	/* I/O APICs:	APIC ID	Version	State		Address */
-	u8 ioapic_id = smp_write_ioapic_from_hw(mc, VIO_APIC_VADDR);
+	u8 ioapic_id = smp_write_ioapic_from_hw(mc, IO_APIC_ADDR);
 
 	/* Legacy Interrupts */
 	mptable_add_isa_interrupts(mc, isa_bus, ioapic_id, 0);
diff --git a/src/mainboard/asus/p2b/variants/p2b-d/mptable.c b/src/mainboard/asus/p2b/variants/p2b-d/mptable.c
index 7536077..e6b5459 100644
--- a/src/mainboard/asus/p2b/variants/p2b-d/mptable.c
+++ b/src/mainboard/asus/p2b/variants/p2b-d/mptable.c
@@ -17,7 +17,7 @@
 	mptable_write_buses(mc, NULL, &isa_bus);
 
 	/* External Intel 82093AA IOAPIC. */
-	u8 ioapic_id = smp_write_ioapic_from_hw(mc, VIO_APIC_VADDR);
+	u8 ioapic_id = smp_write_ioapic_from_hw(mc, IO_APIC_ADDR);
 
 	/* Legacy Interrupts */
 	mptable_add_isa_interrupts(mc, isa_bus, ioapic_id, 0);
diff --git a/src/mainboard/asus/p2b/variants/p2b-ds/mptable.c b/src/mainboard/asus/p2b/variants/p2b-ds/mptable.c
index 2c22ce2..f06fc60 100644
--- a/src/mainboard/asus/p2b/variants/p2b-ds/mptable.c
+++ b/src/mainboard/asus/p2b/variants/p2b-ds/mptable.c
@@ -17,7 +17,7 @@
 	mptable_write_buses(mc, NULL, &isa_bus);
 
 	/* External Intel 82093AA IOAPIC. */
-	u8 ioapic_id = smp_write_ioapic_from_hw(mc, VIO_APIC_VADDR);
+	u8 ioapic_id = smp_write_ioapic_from_hw(mc, IO_APIC_ADDR);
 
 	/* Legacy Interrupts */
 	mptable_add_isa_interrupts(mc, isa_bus, ioapic_id, 0);
diff --git a/src/mainboard/getac/p470/mptable.c b/src/mainboard/getac/p470/mptable.c
index a85b519..d7a4af6 100644
--- a/src/mainboard/getac/p470/mptable.c
+++ b/src/mainboard/getac/p470/mptable.c
@@ -18,7 +18,7 @@
 	mptable_write_buses(mc, NULL, &isa_bus);
 
 	/* I/O APICs:	APIC ID	Version	State		Address */
-	u8 ioapic_id = smp_write_ioapic_from_hw(mc, VIO_APIC_VADDR);
+	u8 ioapic_id = smp_write_ioapic_from_hw(mc, IO_APIC_ADDR);
 
 	/* Legacy Interrupts */
 	mptable_add_isa_interrupts(mc, isa_bus, ioapic_id, 0);
diff --git a/src/mainboard/ibase/mb899/mptable.c b/src/mainboard/ibase/mb899/mptable.c
index a9ad7c7..bb43796 100644
--- a/src/mainboard/ibase/mb899/mptable.c
+++ b/src/mainboard/ibase/mb899/mptable.c
@@ -37,7 +37,7 @@
 	mptable_write_buses(mc, NULL, &isa_bus);
 
 	/* I/O APICs:	APIC ID	Version	State		Address */
-	u8 ioapic_id = smp_write_ioapic_from_hw(mc, VIO_APIC_VADDR);
+	u8 ioapic_id = smp_write_ioapic_from_hw(mc, IO_APIC_ADDR);
 
 	/* Legacy Interrupts */
 
diff --git a/src/mainboard/intel/d945gclf/mptable.c b/src/mainboard/intel/d945gclf/mptable.c
index 8dde3a7..7ab47b4 100644
--- a/src/mainboard/intel/d945gclf/mptable.c
+++ b/src/mainboard/intel/d945gclf/mptable.c
@@ -18,7 +18,7 @@
 	mptable_write_buses(mc, NULL, &isa_bus);
 
 	/* I/O APICs:	APIC ID	Version	State		Address */
-	u8 ioapic_id = smp_write_ioapic_from_hw(mc, VIO_APIC_VADDR);
+	u8 ioapic_id = smp_write_ioapic_from_hw(mc, IO_APIC_ADDR);
 
 	/* Legacy Interrupts */
 
diff --git a/src/mainboard/kontron/986lcd-m/mptable.c b/src/mainboard/kontron/986lcd-m/mptable.c
index b0bfbe7..5ee3288 100644
--- a/src/mainboard/kontron/986lcd-m/mptable.c
+++ b/src/mainboard/kontron/986lcd-m/mptable.c
@@ -33,7 +33,7 @@
 	mptable_write_buses(mc, NULL, &isa_bus);
 
 	/* I/O APICs:	APIC ID	Version	State		Address */
-	u8 ioapic_id = smp_write_ioapic_from_hw(mc, VIO_APIC_VADDR);
+	u8 ioapic_id = smp_write_ioapic_from_hw(mc, IO_APIC_ADDR);
 
 	/* Legacy Interrupts */
 	mptable_add_isa_interrupts(mc, isa_bus, ioapic_id, 0);
diff --git a/src/mainboard/lenovo/t60/mptable.c b/src/mainboard/lenovo/t60/mptable.c
index b4231d3..f640085 100644
--- a/src/mainboard/lenovo/t60/mptable.c
+++ b/src/mainboard/lenovo/t60/mptable.c
@@ -18,7 +18,7 @@
 	mptable_write_buses(mc, NULL, &isa_bus);
 
 	/* I/O APICs:	APIC ID	Version	State		Address */
-	u8 ioapic_id = smp_write_ioapic_from_hw(mc, VIO_APIC_VADDR);
+	u8 ioapic_id = smp_write_ioapic_from_hw(mc, IO_APIC_ADDR);
 
 	/* Legacy Interrupts */
 	mptable_add_isa_interrupts(mc, isa_bus, ioapic_id, 0);
diff --git a/src/mainboard/lenovo/x60/mptable.c b/src/mainboard/lenovo/x60/mptable.c
index 8e972a7..73e9c1b 100644
--- a/src/mainboard/lenovo/x60/mptable.c
+++ b/src/mainboard/lenovo/x60/mptable.c
@@ -18,7 +18,7 @@
 	mptable_write_buses(mc, NULL, &isa_bus);
 
 	/* I/O APICs:	APIC ID	Version	State		Address */
-	u8 ioapic_id = smp_write_ioapic_from_hw(mc, VIO_APIC_VADDR);
+	u8 ioapic_id = smp_write_ioapic_from_hw(mc, IO_APIC_ADDR);
 
 	/* Legacy Interrupts */
 	mptable_add_isa_interrupts(mc, isa_bus, ioapic_id, 0);
diff --git a/src/mainboard/roda/rk886ex/mptable.c b/src/mainboard/roda/rk886ex/mptable.c
index d7bc09e..3ce1cbc 100644
--- a/src/mainboard/roda/rk886ex/mptable.c
+++ b/src/mainboard/roda/rk886ex/mptable.c
@@ -18,7 +18,7 @@
 	mptable_write_buses(mc, NULL, &isa_bus);
 
 	/* I/O APICs:	APIC ID	Version	State		Address */
-	u8 ioapic_id = smp_write_ioapic_from_hw(mc, VIO_APIC_VADDR);
+	u8 ioapic_id = smp_write_ioapic_from_hw(mc, IO_APIC_ADDR);
 
 	/* Legacy Interrupts */
 	mptable_add_isa_interrupts(mc, isa_bus, ioapic_id, 0);
diff --git a/src/northbridge/amd/pi/00730F01/northbridge.c b/src/northbridge/amd/pi/00730F01/northbridge.c
index bc5439d..430eeef 100644
--- a/src/northbridge/amd/pi/00730F01/northbridge.c
+++ b/src/northbridge/amd/pi/00730F01/northbridge.c
@@ -87,7 +87,7 @@
 
 static void northbridge_init(struct device *dev)
 {
-	register_new_ioapic((u8 *)IO_APIC2_ADDR);
+	register_new_ioapic(IO_APIC2_ADDR);
 }
 
 static unsigned long acpi_fill_hest(acpi_hest_t *hest)
@@ -119,7 +119,7 @@
 	ivhd_ioapic->dte_setting = IVHD_DTE_LINT_1_PASS | IVHD_DTE_LINT_0_PASS |
 				   IVHD_DTE_SYS_MGT_NO_TRANS | IVHD_DTE_NMI_PASS |
 				   IVHD_DTE_EXT_INT_PASS | IVHD_DTE_INIT_PASS;
-	ivhd_ioapic->handle = get_ioapic_id(VIO_APIC_VADDR);
+	ivhd_ioapic->handle = get_ioapic_id(IO_APIC_ADDR);
 	ivhd_ioapic->source_dev_id = PCI_DEVFN(SMBUS_DEV, SMBUS_FUNC);
 	ivhd_ioapic->variety = IVHD_SPECIAL_DEV_IOAPIC;
 	current += sizeof(ivrs_ivhd_special_t);
@@ -128,7 +128,7 @@
 	ivhd_ioapic->type = IVHD_DEV_8_BYTE_EXT_SPECIAL_DEV;
 	ivhd_ioapic->reserved = 0x0000;
 	ivhd_ioapic->dte_setting = 0x00;
-	ivhd_ioapic->handle = get_ioapic_id((u8 *)IO_APIC2_ADDR);
+	ivhd_ioapic->handle = get_ioapic_id(IO_APIC2_ADDR);
 	ivhd_ioapic->source_dev_id = PCI_DEVFN(0, 1);
 	ivhd_ioapic->variety = IVHD_SPECIAL_DEV_IOAPIC;
 	current += sizeof(ivrs_ivhd_special_t);
diff --git a/src/soc/amd/common/block/acpi/ivrs.c b/src/soc/amd/common/block/acpi/ivrs.c
index bd52d7c..74c5c39 100644
--- a/src/soc/amd/common/block/acpi/ivrs.c
+++ b/src/soc/amd/common/block/acpi/ivrs.c
@@ -16,7 +16,7 @@
 #include <soc/iomap.h>
 #include <soc/pci_devs.h>
 
-static unsigned long acpi_fill_ivrs_ioapic(unsigned long current, void *ioapic_base,
+static unsigned long acpi_fill_ivrs_ioapic(unsigned long current, uintptr_t ioapic_base,
 					    uint16_t src_devid, uint8_t dte_setting)
 {
 	ivrs_ivhd_special_t *ivhd_ioapic = (ivrs_ivhd_special_t *)current;
@@ -182,7 +182,7 @@
 	res = probe_resource(dev, IOMMU_IOAPIC_IDX);
 	if (res) {
 		/* Describe IOAPIC associated with the IOMMU */
-		current = acpi_fill_ivrs_ioapic(current, (u8 *)(uintptr_t)res->base,
+		current = acpi_fill_ivrs_ioapic(current, (uintptr_t)res->base,
 				      PCI_DEVFN(0, 1) | (dev->downstream->secondary << 8), 0);
 	}
 
@@ -191,7 +191,7 @@
 		/* Describe HPET */
 		current = ivhd_describe_hpet(current, 0x00, SMBUS_DEVFN);
 		/* Describe FCH IOAPICs */
-		current = acpi_fill_ivrs_ioapic(current, VIO_APIC_VADDR,
+		current = acpi_fill_ivrs_ioapic(current, IO_APIC_ADDR,
 				      SMBUS_DEVFN, dte_setting);
 	}
 
diff --git a/src/soc/amd/common/block/lpc/lpc.c b/src/soc/amd/common/block/lpc/lpc.c
index a90fc3e..2392d5f 100644
--- a/src/soc/amd/common/block/lpc/lpc.c
+++ b/src/soc/amd/common/block/lpc/lpc.c
@@ -45,7 +45,7 @@
 static void fch_ioapic_init(void)
 {
 	fch_enable_ioapic_decode();
-	register_new_ioapic_gsi0(VIO_APIC_VADDR);
+	register_new_ioapic_gsi0(IO_APIC_ADDR);
 }
 
 static void lpc_init(struct device *dev)
diff --git a/src/soc/amd/common/block/root_complex/ioapic.c b/src/soc/amd/common/block/root_complex/ioapic.c
index cdeb532..e183428 100644
--- a/src/soc/amd/common/block/root_complex/ioapic.c
+++ b/src/soc/amd/common/block/root_complex/ioapic.c
@@ -13,5 +13,5 @@
 	if (!res)
 		return;
 
-	register_new_ioapic((void *)(uintptr_t)res->base);
+	register_new_ioapic((uintptr_t)res->base);
 }
diff --git a/src/soc/amd/stoneyridge/northbridge.c b/src/soc/amd/stoneyridge/northbridge.c
index a92c3b5..b51601b 100644
--- a/src/soc/amd/stoneyridge/northbridge.c
+++ b/src/soc/amd/stoneyridge/northbridge.c
@@ -73,7 +73,7 @@
 
 static void northbridge_init(struct device *dev)
 {
-	register_new_ioapic((u8 *)IO_APIC2_ADDR);
+	register_new_ioapic(IO_APIC2_ADDR);
 }
 
 /* Used by \_SB.PCI0._CRS */
diff --git a/src/soc/intel/broadwell/pch/lpc.c b/src/soc/intel/broadwell/pch/lpc.c
index 9aaca21..ecd66fa 100644
--- a/src/soc/intel/broadwell/pch/lpc.c
+++ b/src/soc/intel/broadwell/pch/lpc.c
@@ -31,9 +31,9 @@
 
 	/* affirm full set of redirection table entries ("write once") */
 	/* PCH-LP has 40 redirection entries */
-	ioapic_set_max_vectors(VIO_APIC_VADDR, 40);
+	ioapic_set_max_vectors(IO_APIC_ADDR, 40);
 
-	register_new_ioapic_gsi0(VIO_APIC_VADDR);
+	register_new_ioapic_gsi0(IO_APIC_ADDR);
 }
 
 #define ACPI_SCI_IRQ	9
diff --git a/src/soc/intel/common/block/lpc/lpc_lib.c b/src/soc/intel/common/block/lpc/lpc_lib.c
index ed76049..9a7165b 100644
--- a/src/soc/intel/common/block/lpc/lpc_lib.c
+++ b/src/soc/intel/common/block/lpc/lpc_lib.c
@@ -395,9 +395,9 @@
 void pch_enable_ioapic(void)
 {
 	/* affirm full set of redirection table entries ("write once") */
-	ioapic_set_max_vectors(VIO_APIC_VADDR, PCH_REDIR_ETR);
+	ioapic_set_max_vectors(IO_APIC_ADDR, PCH_REDIR_ETR);
 
-	register_new_ioapic_gsi0((void *)IO_APIC_ADDR);
+	register_new_ioapic_gsi0(IO_APIC_ADDR);
 }
 
 static const uint8_t pch_interrupt_routing[PIRQ_COUNT] = {
diff --git a/src/soc/intel/denverton_ns/lpc.c b/src/soc/intel/denverton_ns/lpc.c
index ae923d7..7dc971e 100644
--- a/src/soc/intel/denverton_ns/lpc.c
+++ b/src/soc/intel/denverton_ns/lpc.c
@@ -32,9 +32,9 @@
 static void pch_enable_ioapic(struct device *dev)
 {
 	/* affirm full set of redirection table entries ("write once") */
-	ioapic_set_max_vectors(VIO_APIC_VADDR, PCH_REDIR_ETR);
+	ioapic_set_max_vectors(IO_APIC_ADDR, PCH_REDIR_ETR);
 
-	register_new_ioapic_gsi0((void *)IO_APIC_ADDR);
+	register_new_ioapic_gsi0(IO_APIC_ADDR);
 }
 
 /* interrupt router lookup for internal devices */
diff --git a/src/soc/intel/xeon_sp/uncore_acpi.c b/src/soc/intel/xeon_sp/uncore_acpi.c
index 5ee9087..b4856120 100644
--- a/src/soc/intel/xeon_sp/uncore_acpi.c
+++ b/src/soc/intel/xeon_sp/uncore_acpi.c
@@ -283,7 +283,7 @@
 	if (socket == 0 && stack == IioStack0) {
 		union p2sb_bdf ioapic_bdf = p2sb_get_ioapic_bdf();
 		printk(BIOS_DEBUG, "    [IOAPIC Device] Enumeration ID: 0x%x, PCI Bus Number: 0x%x, "
-		       "PCI Path: 0x%x, 0x%x\n", get_ioapic_id(VIO_APIC_VADDR), ioapic_bdf.bus,
+		       "PCI Path: 0x%x, 0x%x\n", get_ioapic_id(IO_APIC_ADDR), ioapic_bdf.bus,
 		       ioapic_bdf.dev, ioapic_bdf.fn);
 		current += acpi_create_dmar_ds_ioapic_from_hw(current,
 				IO_APIC_ADDR, ioapic_bdf.bus, ioapic_bdf.dev, ioapic_bdf.fn);
diff --git a/src/southbridge/amd/pi/hudson/sm.c b/src/southbridge/amd/pi/hudson/sm.c
index 593f548..70e4985 100644
--- a/src/southbridge/amd/pi/hudson/sm.c
+++ b/src/southbridge/amd/pi/hudson/sm.c
@@ -28,7 +28,7 @@
 
 static void sm_init(struct device *dev)
 {
-	register_new_ioapic_gsi0(VIO_APIC_VADDR);
+	register_new_ioapic_gsi0(IO_APIC_ADDR);
 }
 
 static int lsmbus_recv_byte(struct device *dev)
diff --git a/src/southbridge/intel/bd82x6x/lpc.c b/src/southbridge/intel/bd82x6x/lpc.c
index 69c9d44..67d883a 100644
--- a/src/southbridge/intel/bd82x6x/lpc.c
+++ b/src/southbridge/intel/bd82x6x/lpc.c
@@ -41,9 +41,9 @@
 		PCH_IOAPIC_PCI_BUS << 8 | PCH_IOAPIC_PCI_SLOT << 3);
 
 	/* affirm full set of redirection table entries ("write once") */
-	ioapic_lock_max_vectors(VIO_APIC_VADDR);
+	ioapic_lock_max_vectors(IO_APIC_ADDR);
 
-	register_new_ioapic_gsi0(VIO_APIC_VADDR);
+	register_new_ioapic_gsi0(IO_APIC_ADDR);
 }
 
 static void pch_enable_serial_irqs(struct device *dev)
diff --git a/src/southbridge/intel/i82371eb/isa.c b/src/southbridge/intel/i82371eb/isa.c
index 9d03de0..692fd8b 100644
--- a/src/southbridge/intel/i82371eb/isa.c
+++ b/src/southbridge/intel/i82371eb/isa.c
@@ -61,8 +61,8 @@
 		pci_write_config16(dev, XBCS, reg16);
 
 		/* Set and verify the IOAPIC ID. */
-		setup_ioapic(VIO_APIC_VADDR, ioapic_id);
-		if (ioapic_id != get_ioapic_id(VIO_APIC_VADDR))
+		setup_ioapic(IO_APIC_ADDR, ioapic_id);
+		if (ioapic_id != get_ioapic_id(IO_APIC_ADDR))
 			die("IOAPIC error!\n");
 	}
 }
diff --git a/src/southbridge/intel/i82801dx/lpc.c b/src/southbridge/intel/i82801dx/lpc.c
index d914335..c8b0760 100644
--- a/src/southbridge/intel/i82801dx/lpc.c
+++ b/src/southbridge/intel/i82801dx/lpc.c
@@ -39,9 +39,9 @@
 	pci_write_config32(dev, GEN_CNTL, reg32);
 	printk(BIOS_DEBUG, "IOAPIC Southbridge enabled %x\n", reg32);
 
-	register_new_ioapic_gsi0(VIO_APIC_VADDR);
+	register_new_ioapic_gsi0(IO_APIC_ADDR);
 
-	ioapic_set_boot_config(VIO_APIC_VADDR, true);
+	ioapic_set_boot_config(IO_APIC_ADDR, true);
 }
 
 static void i82801dx_enable_serial_irqs(struct device *dev)
diff --git a/src/southbridge/intel/i82801gx/lpc.c b/src/southbridge/intel/i82801gx/lpc.c
index 28cde3e..a04b4b9 100644
--- a/src/southbridge/intel/i82801gx/lpc.c
+++ b/src/southbridge/intel/i82801gx/lpc.c
@@ -34,7 +34,7 @@
  */
 static void i82801gx_enable_ioapic(struct device *dev)
 {
-	register_new_ioapic_gsi0(VIO_APIC_VADDR);
+	register_new_ioapic_gsi0(IO_APIC_ADDR);
 }
 
 static void i82801gx_enable_serial_irqs(struct device *dev)
diff --git a/src/southbridge/intel/i82801ix/lpc.c b/src/southbridge/intel/i82801ix/lpc.c
index 91b7456..0adc1b9 100644
--- a/src/southbridge/intel/i82801ix/lpc.c
+++ b/src/southbridge/intel/i82801ix/lpc.c
@@ -34,9 +34,9 @@
 	RCBA8(0x31ff);
 
 	/* Lock maximum redirection entries (MRE), R/WO register. */
-	ioapic_lock_max_vectors(VIO_APIC_VADDR);
+	ioapic_lock_max_vectors(IO_APIC_ADDR);
 
-	register_new_ioapic_gsi0(VIO_APIC_VADDR);
+	register_new_ioapic_gsi0(IO_APIC_ADDR);
 }
 
 static void i82801ix_enable_serial_irqs(struct device *dev)
diff --git a/src/southbridge/intel/i82801jx/lpc.c b/src/southbridge/intel/i82801jx/lpc.c
index 7cff33a..0a3e26f 100644
--- a/src/southbridge/intel/i82801jx/lpc.c
+++ b/src/southbridge/intel/i82801jx/lpc.c
@@ -35,9 +35,9 @@
 	RCBA8(0x31ff);
 
 	/* Lock maximum redirection entries (MRE), R/WO register. */
-	ioapic_lock_max_vectors(VIO_APIC_VADDR);
+	ioapic_lock_max_vectors(IO_APIC_ADDR);
 
-	register_new_ioapic_gsi0(VIO_APIC_VADDR);
+	register_new_ioapic_gsi0(IO_APIC_ADDR);
 }
 
 static void i82801jx_enable_serial_irqs(struct device *dev)
diff --git a/src/southbridge/intel/i82870/ioapic.c b/src/southbridge/intel/i82870/ioapic.c
index f6a4ac0..4a25f6b 100644
--- a/src/southbridge/intel/i82870/ioapic.c
+++ b/src/southbridge/intel/i82870/ioapic.c
@@ -6,6 +6,7 @@
 #include <device/pci_ids.h>
 #include <device/pci_ops.h>
 #include <assert.h>
+#include <types.h>
 #include "82870.h"
 
 static void p64h2_ioapic_enable(struct device *dev)
@@ -27,17 +28,17 @@
  */
 static void p64h2_ioapic_init(struct device *dev)
 {
-	uint32_t memoryBase;
+	uintptr_t memoryBase;
 
 	// Read the MBAR address for setting up the IOAPIC in memory space
 	// NOTE: this address was assigned during enumeration of the bus
 
-	memoryBase = pci_read_config32(dev, PCI_BASE_ADDRESS_0);
+	memoryBase = (uintptr_t)pci_read_config32(dev, PCI_BASE_ADDRESS_0);
 
-	register_new_ioapic((void *)memoryBase);
+	register_new_ioapic(memoryBase);
 
 	// Use Processor System Bus to deliver interrupts
-	ioapic_set_boot_config((void *)memoryBase, true);
+	ioapic_set_boot_config(memoryBase, true);
 }
 
 static struct device_operations ioapic_ops = {
diff --git a/src/southbridge/intel/ibexpeak/lpc.c b/src/southbridge/intel/ibexpeak/lpc.c
index 7d85883..93dc387 100644
--- a/src/southbridge/intel/ibexpeak/lpc.c
+++ b/src/southbridge/intel/ibexpeak/lpc.c
@@ -33,9 +33,9 @@
 static void pch_enable_ioapic(struct device *dev)
 {
 	/* affirm full set of redirection table entries ("write once") */
-	ioapic_lock_max_vectors(VIO_APIC_VADDR);
+	ioapic_lock_max_vectors(IO_APIC_ADDR);
 
-	register_new_ioapic_gsi0(VIO_APIC_VADDR);
+	register_new_ioapic_gsi0(IO_APIC_ADDR);
 }
 
 static void pch_enable_serial_irqs(struct device *dev)
diff --git a/src/southbridge/intel/lynxpoint/lpc.c b/src/southbridge/intel/lynxpoint/lpc.c
index e44d9a8..93b7423 100644
--- a/src/southbridge/intel/lynxpoint/lpc.c
+++ b/src/southbridge/intel/lynxpoint/lpc.c
@@ -38,11 +38,11 @@
 	/* affirm full set of redirection table entries ("write once") */
 	/* PCH-LP has 40 redirection entries */
 	if (pch_is_lp())
-		ioapic_set_max_vectors(VIO_APIC_VADDR, 40);
+		ioapic_set_max_vectors(IO_APIC_ADDR, 40);
 	else
-		ioapic_lock_max_vectors(VIO_APIC_VADDR);
+		ioapic_lock_max_vectors(IO_APIC_ADDR);
 
-	register_new_ioapic_gsi0(VIO_APIC_VADDR);
+	register_new_ioapic_gsi0(IO_APIC_ADDR);
 }
 
 static void pch_enable_serial_irqs(struct device *dev)