aboutsummaryrefslogtreecommitdiff
path: root/arch/arm/mach-ixp23xx/include/mach/memory.h
diff options
context:
space:
mode:
authorRussell King <rmk@dyn-67.arm.linux.org.uk>2008-08-05 16:14:15 +0100
committerRussell King <rmk+kernel@arm.linux.org.uk>2008-08-07 09:55:48 +0100
commita09e64fbc0094e3073dbb09c3b4bfe4ab669244b (patch)
tree69689f467179891b498bd7423fcf61925173db31 /arch/arm/mach-ixp23xx/include/mach/memory.h
parenta1b81a84fff05dbfef45b7012c26e1fee9973e5d (diff)
[ARM] Move include/asm-arm/arch-* to arch/arm/*/include/mach
This just leaves include/asm-arm/plat-* to deal with. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Diffstat (limited to 'arch/arm/mach-ixp23xx/include/mach/memory.h')
-rw-r--r--arch/arm/mach-ixp23xx/include/mach/memory.h48
1 files changed, 48 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..9d40115f7eb
--- /dev/null
+++ b/arch/arm/mach-ixp23xx/include/mach/memory.h
@@ -0,0 +1,48 @@
+/*
+ * 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 PHYS_OFFSET (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.
+ */
+#ifndef __ASSEMBLY__
+
+#define __virt_to_bus(v) \
+ ({ unsigned int ret; \
+ ret = ((__virt_to_phys(v) - 0x00000000) + \
+ (*((volatile int *)IXP23XX_PCI_SDRAM_BAR) & 0xfffffff0)); \
+ ret; })
+
+#define __bus_to_virt(b) \
+ ({ unsigned int data; \
+ data = *((volatile int *)IXP23XX_PCI_SDRAM_BAR); \
+ __phys_to_virt((((b - (data & 0xfffffff0)) + 0x00000000))); })
+
+#define arch_is_coherent() 1
+
+#endif
+
+
+#endif