diff --git a/include/asm-arm/arch-ixp4xx/platform.h b/include/asm-arm/arch-ixp4xx/platform.h
index daf9790645ca2bd7746ddce03d50f7a1a67b5147..13aee17b04750b692d5cab4b445d61d84163d740 100644
--- a/include/asm-arm/arch-ixp4xx/platform.h
+++ b/include/asm-arm/arch-ixp4xx/platform.h
@@ -38,6 +38,33 @@ extern unsigned long ixp4xx_exp_bus_size;
 #define	IXP4XX_EXP_BUS_BASE(region)\
 		(IXP4XX_EXP_BUS_BASE_PHYS + ((region) * ixp4xx_exp_bus_size))
 
+#define IXP4XX_EXP_BUS_END(region)\
+		(IXP4XX_EXP_BUS_BASE(region) + ixp4xx_exp_bus_size - 1)
+
+/* Those macros can be used to adjust timing and configure
+ * other features for each region.
+ */
+
+#define IXP4XX_EXP_BUS_RECOVERY_T(x)	(((x) & 0x0f) << 16)
+#define IXP4XX_EXP_BUS_HOLD_T(x)	(((x) & 0x03) << 20)
+#define IXP4XX_EXP_BUS_STROBE_T(x)	(((x) & 0x0f) << 22)
+#define IXP4XX_EXP_BUS_SETUP_T(x)	(((x) & 0x03) << 26)
+#define IXP4XX_EXP_BUS_ADDR_T(x)	(((x) & 0x03) << 28)
+#define IXP4XX_EXP_BUS_SIZE(x)		(((x) & 0x0f) << 10)
+#define IXP4XX_EXP_BUS_CYCLES(x)	(((x) & 0x03) << 14)
+
+#define IXP4XX_EXP_BUS_CS_EN		(1L << 31)
+#define IXP4XX_EXP_BUS_BYTE_RD16	(1L << 6)
+#define IXP4XX_EXP_BUS_HRDY_POL		(1L << 5)
+#define IXP4XX_EXP_BUS_MUX_EN		(1L << 4)
+#define IXP4XX_EXP_BUS_SPLT_EN		(1L << 3)
+#define IXP4XX_EXP_BUS_WR_EN		(1L << 1)
+#define IXP4XX_EXP_BUS_BYTE_EN		(1L << 0)
+
+#define IXP4XX_EXP_BUS_CYCLES_INTEL	0x00
+#define IXP4XX_EXP_BUS_CYCLES_MOTOROLA	0x01
+#define IXP4XX_EXP_BUS_CYCLES_HPI	0x02
+
 #define IXP4XX_FLASH_WRITABLE	(0x2)
 #define IXP4XX_FLASH_DEFAULT	(0xbcd23c40)
 #define IXP4XX_FLASH_WRITE	(0xbcd23c42)