diff --git a/src/southbridge/intel/i82801ix/hdaudio.c b/src/southbridge/intel/i82801ix/hdaudio.c
index e5b790619f..434d0aa2fd 100644
--- a/src/southbridge/intel/i82801ix/hdaudio.c
+++ b/src/southbridge/intel/i82801ix/hdaudio.c
@@ -247,8 +247,7 @@ static void azalia_init(struct device *dev)
 	pci_write_config32(dev, 0x120, reg32);
 
 	/* Set Bus Master */
-	reg32 = pci_read_config32(dev, PCI_COMMAND);
-	pci_write_config32(dev, PCI_COMMAND, reg32 | PCI_COMMAND_MASTER);
+	pci_or_config16(dev, PCI_COMMAND, PCI_COMMAND_MASTER);
 
 	reg8 = pci_read_config8(dev, 0x4d); // Docking Status
 	reg8 &= ~(1 << 7); // Docking not supported
diff --git a/src/southbridge/intel/i82801ix/i82801ix.c b/src/southbridge/intel/i82801ix/i82801ix.c
index f26d584a38..b76116d80f 100644
--- a/src/southbridge/intel/i82801ix/i82801ix.c
+++ b/src/southbridge/intel/i82801ix/i82801ix.c
@@ -13,12 +13,8 @@ typedef struct southbridge_intel_i82801ix_config config_t;
 
 static void i82801ix_enable_device(struct device *dev)
 {
-	u32 reg32;
-
 	/* Enable SERR */
-	reg32 = pci_read_config32(dev, PCI_COMMAND);
-	reg32 |= PCI_COMMAND_SERR;
-	pci_write_config32(dev, PCI_COMMAND, reg32);
+	pci_or_config16(dev, PCI_COMMAND, PCI_COMMAND_SERR);
 }
 
 static void i82801ix_early_settings(const config_t *const info)
diff --git a/src/southbridge/intel/i82801ix/pcie.c b/src/southbridge/intel/i82801ix/pcie.c
index d170f0de44..5471e6979f 100644
--- a/src/southbridge/intel/i82801ix/pcie.c
+++ b/src/southbridge/intel/i82801ix/pcie.c
@@ -20,9 +20,7 @@ static void pci_init(struct device *dev)
 	printk(BIOS_DEBUG, "Initializing ICH9 PCIe root port.\n");
 
 	/* Enable Bus Master */
-	reg32 = pci_read_config32(dev, PCI_COMMAND);
-	reg32 |= PCI_COMMAND_MASTER;
-	pci_write_config32(dev, PCI_COMMAND, reg32);
+	pci_or_config16(dev, PCI_COMMAND, PCI_COMMAND_MASTER);
 
 	/* Set Cache Line Size to 0x10 */
 	// This has no effect but the OS might expect it
diff --git a/src/southbridge/intel/i82801ix/usb_ehci.c b/src/southbridge/intel/i82801ix/usb_ehci.c
index 3ccffd8228..9759186ca3 100644
--- a/src/southbridge/intel/i82801ix/usb_ehci.c
+++ b/src/southbridge/intel/i82801ix/usb_ehci.c
@@ -11,12 +11,8 @@
 
 static void usb_ehci_init(struct device *dev)
 {
-	u32 reg32;
-
 	printk(BIOS_DEBUG, "EHCI: Setting up controller.. ");
-	reg32 = pci_read_config32(dev, PCI_COMMAND);
-	reg32 |= PCI_COMMAND_MASTER;
-	pci_write_config32(dev, PCI_COMMAND, reg32);
+	pci_or_config16(dev, PCI_COMMAND, PCI_COMMAND_MASTER);
 
 	printk(BIOS_DEBUG, "done.\n");
 }