aboutsummaryrefslogtreecommitdiff
path: root/include/asm-arm/arch-mxc/memory.h
diff options
context:
space:
mode:
Diffstat (limited to 'include/asm-arm/arch-mxc/memory.h')
-rw-r--r--include/asm-arm/arch-mxc/memory.h36
1 files changed, 36 insertions, 0 deletions
diff --git a/include/asm-arm/arch-mxc/memory.h b/include/asm-arm/arch-mxc/memory.h
new file mode 100644
index 00000000000..c89aac83a40
--- /dev/null
+++ b/include/asm-arm/arch-mxc/memory.h
@@ -0,0 +1,36 @@
+/*
+ * Copyright 2004-2007 Freescale Semiconductor, Inc. All Rights Reserved.
+ */
+
+/*
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#ifndef __ASM_ARCH_MXC_MEMORY_H__
+#define __ASM_ARCH_MXC_MEMORY_H__
+
+#include <asm/hardware.h>
+
+/*!
+ * @file memory.h
+ * @brief This file contains macros needed by the Linux kernel and drivers.
+ *
+ * @ingroup Memory
+ */
+
+/*!
+ * Virtual view <-> DMA view memory address translations
+ * This macro is used to translate the virtual address to an address
+ * suitable to be passed to set_dma_addr()
+ */
+#define __virt_to_bus(a) __virt_to_phys(a)
+
+/*!
+ * Used to convert an address for DMA operations to an address that the
+ * kernel can use.
+ */
+#define __bus_to_virt(a) __phys_to_virt(a)
+
+#endif /* __ASM_ARCH_MXC_MEMORY_H__ */