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-rw-r--r--arch/arm/mach-davinci/include/mach/hardware.h17
1 files changed, 17 insertions, 0 deletions
diff --git a/arch/arm/mach-davinci/include/mach/hardware.h b/arch/arm/mach-davinci/include/mach/hardware.h
index 48c77934d51..41c89386e39 100644
--- a/arch/arm/mach-davinci/include/mach/hardware.h
+++ b/arch/arm/mach-davinci/include/mach/hardware.h
@@ -24,4 +24,21 @@
/* System control register offsets */
#define DM64XX_VDD3P3V_PWDN 0x48
+/*
+ * I/O mapping
+ */
+#define IO_PHYS 0x01c00000
+#define IO_OFFSET 0xfd000000 /* Virtual IO = 0xfec00000 */
+#define IO_SIZE 0x00400000
+#define IO_VIRT (IO_PHYS + IO_OFFSET)
+#define io_v2p(va) ((va) - IO_OFFSET)
+#define __IO_ADDRESS(x) ((x) + IO_OFFSET)
+#define IO_ADDRESS(pa) IOMEM(__IO_ADDRESS(pa))
+
+#ifdef __ASSEMBLER__
+#define IOMEM(x) x
+#else
+#define IOMEM(x) ((void __force __iomem *)(x))
+#endif
+
#endif /* __ASM_ARCH_HARDWARE_H */