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authorJeff Garzik <jgarzik@pobox.com>2005-11-05 14:38:55 -0500
committerJeff Garzik <jgarzik@pobox.com>2005-11-05 14:38:55 -0500
commit328198acb7407301ddf6005c0fa1e04bd0c539c8 (patch)
tree9936112bd195bfbaacc9a75f2ea7ff757a2c0546 /include/asm-arm/arch-realview/memory.h
parent9e0cb06b17be7e562cbdaba2768649f025826dc6 (diff)
parentfecb4a0c87c2bcaee1f3cf800126eef752a07ed3 (diff)
Merge branch 'master'
Diffstat (limited to 'include/asm-arm/arch-realview/memory.h')
-rw-r--r--include/asm-arm/arch-realview/memory.h38
1 files changed, 38 insertions, 0 deletions
diff --git a/include/asm-arm/arch-realview/memory.h b/include/asm-arm/arch-realview/memory.h
new file mode 100644
index 00000000000..ed370abb638
--- /dev/null
+++ b/include/asm-arm/arch-realview/memory.h
@@ -0,0 +1,38 @@
+/*
+ * linux/include/asm-arm/arch-realview/memory.h
+ *
+ * Copyright (C) 2003 ARM Limited
+ *
+ * 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.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ */
+#ifndef __ASM_ARCH_MEMORY_H
+#define __ASM_ARCH_MEMORY_H
+
+/*
+ * Physical DRAM offset.
+ */
+#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.
+ */
+#define __virt_to_bus(x) ((x) - PAGE_OFFSET)
+#define __bus_to_virt(x) ((x) + PAGE_OFFSET)
+
+#endif