1 files changed, 34 insertions, 0 deletions

diff --git a/arch/arm/mach-ixp23xx/include/mach/memory.h b/arch/arm/mach-ixp23xx/include/mach/memory.h
new file mode 100644
index 00000000000..6cf0704e946
--- /dev/null
+++ b/arch/arm/mach-ixp23xx/include/mach/memory.h
@@ -0,0 +1,34 @@
+/*
+ * arch/arm/mach-ixp23xx/include/mach/memory.h
+ *
+ * Copyright (c) 2003-2004 Intel Corp.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation; either version 2 of the License, or (at your
+ * option) any later version.
+ */
+
+#ifndef __ASM_ARCH_MEMORY_H
+#define __ASM_ARCH_MEMORY_H
+
+#include <mach/hardware.h>
+
+/*
+ * Physical DRAM offset.
+ */
+#define PLAT_PHYS_OFFSET                (0x00000000)
+
+#define IXP23XX_PCI_SDRAM_OFFSET (*((volatile int *)IXP23XX_PCI_SDRAM_BAR) & 0xfffffff0)
+
+#define __phys_to_bus(x)        ((x) + (IXP23XX_PCI_SDRAM_OFFSET - PHYS_OFFSET))
+#define __bus_to_phys(x)        ((x) - (IXP23XX_PCI_SDRAM_OFFSET - PHYS_OFFSET))
+
+#define __virt_to_bus(v)        __phys_to_bus(__virt_to_phys(v))
+#define __bus_to_virt(b)        __phys_to_virt(__bus_to_phys(b))
+#define __pfn_to_bus(p)         __phys_to_bus(__pfn_to_phys(p))
+#define __bus_to_pfn(b)         __phys_to_pfn(__bus_to_phys(b))
+
+#define arch_is_coherent()      1
+
+#endif