+/*
+ * Macros to allow using the absolute physical address instead of the
+ * padconf registers instead of the offset from padconf base.
+ */
+#define OMAP_IOPAD_OFFSET(pa, offset) (((pa) & 0xffff) - (offset))
+
+#define OMAP2420_CORE_IOPAD(pa, val) OMAP_IOPAD_OFFSET((pa), 0x0030) (val)
+#define OMAP2430_CORE_IOPAD(pa, val) OMAP_IOPAD_OFFSET((pa), 0x2030) (val)
+#define OMAP3_CORE1_IOPAD(pa, val) OMAP_IOPAD_OFFSET((pa), 0x2030) (val)
+#define OMAP3430_CORE2_IOPAD(pa, val) OMAP_IOPAD_OFFSET((pa), 0x25d8) (val)
+#define OMAP3630_CORE2_IOPAD(pa, val) OMAP_IOPAD_OFFSET((pa), 0x25a0) (val)
+#define OMAP3_WKUP_IOPAD(pa, val) OMAP_IOPAD_OFFSET((pa), 0x2a00) (val)
+#define DM814X_IOPAD(pa, val) OMAP_IOPAD_OFFSET((pa), 0x0800) (val)
+#define DM816X_IOPAD(pa, val) OMAP_IOPAD_OFFSET((pa), 0x0800) (val)
+#define AM33XX_IOPAD(pa, val) OMAP_IOPAD_OFFSET((pa), 0x0800) (val)
+
+/*
+ * Macros to allow using the offset from the padconf physical address
+ * instead of the offset from padconf base.
+ */
+#define OMAP_PADCONF_OFFSET(offset, base_offset) ((offset) - (base_offset))
+
+#define OMAP4_IOPAD(offset, val) OMAP_PADCONF_OFFSET((offset), 0x0040) (val)
+#define OMAP5_IOPAD(offset, val) OMAP_PADCONF_OFFSET((offset), 0x0040) (val)
+
+/*
+ * Define some commonly used pins configured by the boards.
+ * Note that some boards use alternative pins, so check
+ * the schematics before using these.
+ */
+#define OMAP3_UART1_RX 0x152
+#define OMAP3_UART2_RX 0x14a
+#define OMAP3_UART3_RX 0x16e
+#define OMAP4_UART2_RX 0xdc
+#define OMAP4_UART3_RX 0x104
+#define OMAP4_UART4_RX 0x11c
+