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authorLinus Torvalds <torvalds@g5.osdl.org>2006-03-28 13:53:03 -0800
committerLinus Torvalds <torvalds@g5.osdl.org>2006-03-28 13:53:03 -0800
commitca9ba4471c1203bb6e759b76e83167fec54fe590 (patch)
tree8aeb359631742f77f635cb5ff785bea9132502f9 /include/asm-arm/arch-ixp23xx/memory.h
parentd4965b3e2ff94d0c7b7e6e7e9794b54950a2f4b9 (diff)
parentc4713074375c61f939310b04e92090afe29810dc (diff)
downloadlinux-rt-ca9ba4471c1203bb6e759b76e83167fec54fe590.tar.gz
Merge master.kernel.org:/home/rmk/linux-2.6-arm
* master.kernel.org:/home/rmk/linux-2.6-arm: [ARM] 3388/1: ixp23xx: add core ixp23xx support [ARM] 3417/1: add support for logicpd pxa270 card engine [ARM] 3387/1: ixp23xx: add defconfig [ARM] 3377/2: add support for intel xsc3 core [ARM] Move ice-dcc code into misc.c [ARM] Fix decompressor serial IO to give CRLF not LFCR [ARM] proc-v6: mark page table walks outer-cacheable, shared. Enable NX. [ARM] nommu: trivial patch for arch/arm/lib/Makefile [ARM] 3416/1: Update LART site URL [ARM] 3415/1: Akita: Add missing EXPORT_SYMBOL [ARM] 3414/1: ep93xx: reset ethernet controller before uncompressing
Diffstat (limited to 'include/asm-arm/arch-ixp23xx/memory.h')
-rw-r--r--include/asm-arm/arch-ixp23xx/memory.h46
1 files changed, 46 insertions, 0 deletions
diff --git a/include/asm-arm/arch-ixp23xx/memory.h b/include/asm-arm/arch-ixp23xx/memory.h
new file mode 100644
index 000000000000..bebcf0aa0d72
--- /dev/null
+++ b/include/asm-arm/arch-ixp23xx/memory.h
@@ -0,0 +1,46 @@
+/*
+ * include/asm-arm/arch-ixp23xx/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 <asm/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))); })
+
+#endif
+
+
+#endif