Merge http://ftp.arm.linux.org.uk/pub/linux/arm/kernel/git-cur/linux-2.6-arm into for-rmk

1 files changed, 34 insertions, 0 deletions

diff --git a/arch/arm/mach-ixp2000/include/mach/memory.h b/arch/arm/mach-ixp2000/include/mach/memory.h
new file mode 100644
index 00000000000..241529a7c52
--- /dev/null
+++ b/arch/arm/mach-ixp2000/include/mach/memory.h
@@ -0,0 +1,34 @@
+/*
+ * arch/arm/mach-ixp2000/include/mach/memory.h
+ *
+ * Copyright (c) 2002 Intel Corp.
+ * Copyright (c) 2003-2004 MontaVista Software, Inc.
+ *
+ *  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
+
+#define PHYS_OFFSET	UL(0x00000000)
+
+/*
+ * Virtual view <-> DMA view memory address translations
+ * virt_to_bus: Used to translate the virtual address to an
+ *		address suitable to be passed to set_dma_addr
+ * bus_to_virt: Used to convert an address for DMA operations
+ *		to an address that the kernel can use.
+ */
+#include <mach/ixp2000-regs.h>
+
+#define __virt_to_bus(v) \
+	(((__virt_to_phys(v) - 0x0) + (*IXP2000_PCI_SDRAM_BAR & 0xfffffff0)))
+
+#define __bus_to_virt(b) \
+	__phys_to_virt((((b - (*IXP2000_PCI_SDRAM_BAR & 0xfffffff0)) + 0x0)))
+
+#endif
+