diff --git a/arch/arm/mach-ixp2000/core.c b/arch/arm/mach-ixp2000/core.c
index df140962bb0fca0ae4f521f455a98bad10ce7e8c..6851abaf5524f6a4b1273339f3c4fb577f59fa2a 100644
--- a/arch/arm/mach-ixp2000/core.c
+++ b/arch/arm/mach-ixp2000/core.c
@@ -84,63 +84,54 @@ static struct map_desc ixp2000_io_desc[] __initdata = {
 		.virtual	= IXP2000_CAP_VIRT_BASE,
 		.pfn		= __phys_to_pfn(IXP2000_CAP_PHYS_BASE),
 		.length		= IXP2000_CAP_SIZE,
-		.type		= MT_DEVICE
+		.type		= MT_IXP2000_DEVICE,
 	}, {
 		.virtual	= IXP2000_INTCTL_VIRT_BASE,
 		.pfn		= __phys_to_pfn(IXP2000_INTCTL_PHYS_BASE),
 		.length		= IXP2000_INTCTL_SIZE,
-		.type		= MT_DEVICE
+		.type		= MT_IXP2000_DEVICE,
 	}, {
 		.virtual	= IXP2000_PCI_CREG_VIRT_BASE,
 		.pfn		= __phys_to_pfn(IXP2000_PCI_CREG_PHYS_BASE),
 		.length		= IXP2000_PCI_CREG_SIZE,
-		.type		= MT_DEVICE
+		.type		= MT_IXP2000_DEVICE,
 	}, {
 		.virtual	= IXP2000_PCI_CSR_VIRT_BASE,
 		.pfn		= __phys_to_pfn(IXP2000_PCI_CSR_PHYS_BASE),
 		.length		= IXP2000_PCI_CSR_SIZE,
-		.type		= MT_DEVICE
+		.type		= MT_IXP2000_DEVICE,
 	}, {
 		.virtual	= IXP2000_MSF_VIRT_BASE,
 		.pfn		= __phys_to_pfn(IXP2000_MSF_PHYS_BASE),
 		.length		= IXP2000_MSF_SIZE,
-		.type		= MT_DEVICE
+		.type		= MT_IXP2000_DEVICE,
 	}, {
 		.virtual	= IXP2000_PCI_IO_VIRT_BASE,
 		.pfn		= __phys_to_pfn(IXP2000_PCI_IO_PHYS_BASE),
 		.length		= IXP2000_PCI_IO_SIZE,
-		.type		= MT_DEVICE
+		.type		= MT_IXP2000_DEVICE,
 	}, {
 		.virtual	= IXP2000_PCI_CFG0_VIRT_BASE,
 		.pfn		= __phys_to_pfn(IXP2000_PCI_CFG0_PHYS_BASE),
 		.length		= IXP2000_PCI_CFG0_SIZE,
-		.type		= MT_DEVICE
+		.type		= MT_IXP2000_DEVICE,
 	}, {
 		.virtual	= IXP2000_PCI_CFG1_VIRT_BASE,
 		.pfn		= __phys_to_pfn(IXP2000_PCI_CFG1_PHYS_BASE),
 		.length		= IXP2000_PCI_CFG1_SIZE,
-		.type		= MT_DEVICE
+		.type		= MT_IXP2000_DEVICE,
 	}
 };
 
 void __init ixp2000_map_io(void)
 {
-	extern unsigned int processor_id;
-
 	/*
-	 * On IXP2400 CPUs we need to use MT_IXP2000_DEVICE for
-	 * tweaking the PMDs so XCB=101. On IXP2800s we use the normal
-	 * PMD flags.
+	 * On IXP2400 CPUs we need to use MT_IXP2000_DEVICE so that
+	 * XCB=101 (to avoid triggering erratum #66), and given that
+	 * this mode speeds up I/O accesses and we have write buffer
+	 * flushes in the right places anyway, it doesn't hurt to use
+	 * XCB=101 for all IXP2000s.
 	 */
-	if ((processor_id & 0xfffffff0) == 0x69054190) {
-		int i;
-
-		printk(KERN_INFO "Enabling IXP2400 erratum #66 workaround\n");
-
-		for(i=0;i<ARRAY_SIZE(ixp2000_io_desc);i++)
-			ixp2000_io_desc[i].type = MT_IXP2000_DEVICE;
-	}
-
 	iotable_init(ixp2000_io_desc, ARRAY_SIZE(ixp2000_io_desc));
 
 	/* Set slowport to 8-bit mode.  */