[ARM] Remove MT_DEVICE_IXP2000 and associated definitions

As of the previous commit, MT_DEVICE_IXP2000 encodes to the same
PTE bit encoding as MT_DEVICE, so it's now redundant.  Convert
MT_DEVICE_IXP2000 to use MT_DEVICE instead, and remove its aliases.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
diff --git a/arch/arm/include/asm/io.h b/arch/arm/include/asm/io.h
index 71934856..a809445 100644
--- a/arch/arm/include/asm/io.h
+++ b/arch/arm/include/asm/io.h
@@ -60,10 +60,9 @@
 #define MT_DEVICE		0
 #define MT_DEVICE_NONSHARED	1
 #define MT_DEVICE_CACHED	2
-#define MT_DEVICE_IXP2000	3
-#define MT_DEVICE_WC		4
+#define MT_DEVICE_WC		3
 /*
- * types 5 onwards can be found in asm/mach/map.h and are undefined
+ * types 4 onwards can be found in asm/mach/map.h and are undefined
  * for ioremap
  */
 
diff --git a/arch/arm/include/asm/mach/map.h b/arch/arm/include/asm/mach/map.h
index 9eb936e..72586cd 100644
--- a/arch/arm/include/asm/mach/map.h
+++ b/arch/arm/include/asm/mach/map.h
@@ -18,16 +18,15 @@
 	unsigned int type;
 };
 
-/* types 0-4 are defined in asm/io.h */
-#define MT_CACHECLEAN		5
-#define MT_MINICLEAN		6
-#define MT_LOW_VECTORS		7
-#define MT_HIGH_VECTORS		8
-#define MT_MEMORY		9
-#define MT_ROM			10
+/* types 0-3 are defined in asm/io.h */
+#define MT_CACHECLEAN		4
+#define MT_MINICLEAN		5
+#define MT_LOW_VECTORS		6
+#define MT_HIGH_VECTORS		7
+#define MT_MEMORY		8
+#define MT_ROM			9
 
 #define MT_NONSHARED_DEVICE	MT_DEVICE_NONSHARED
-#define MT_IXP2000_DEVICE	MT_DEVICE_IXP2000
 
 #ifdef CONFIG_MMU
 extern void iotable_init(struct map_desc *, int);
diff --git a/arch/arm/include/asm/pgtable.h b/arch/arm/include/asm/pgtable.h
index dfeff81..e5054b0 100644
--- a/arch/arm/include/asm/pgtable.h
+++ b/arch/arm/include/asm/pgtable.h
@@ -184,7 +184,6 @@
 #define L_PTE_MT_WRITEALLOC	(0x07 << 2)	/* 0111 */
 #define L_PTE_MT_DEV_SHARED	(0x04 << 2)	/* 0100 */
 #define L_PTE_MT_DEV_NONSHARED	(0x0c << 2)	/* 1100 */
-#define L_PTE_MT_DEV_IXP2000	(0x0d << 2)	/* 1101 */
 #define L_PTE_MT_DEV_WC		(0x09 << 2)	/* 1001 */
 #define L_PTE_MT_DEV_CACHED	(0x0b << 2)	/* 1011 */
 #define L_PTE_MT_MASK		(0x0f << 2)