1 files changed, 52 insertions, 0 deletions

diff --git a/arch/arm/mach-pxa/include/mach/memory.h b/arch/arm/mach-pxa/include/mach/memory.h
new file mode 100644
index 00000000000..552eb7fa657
--- /dev/null
+++ b/arch/arm/mach-pxa/include/mach/memory.h
@@ -0,0 +1,52 @@
+/*
+ *  arch/arm/mach-pxa/include/mach/memory.h
+ *
+ * Author:      Nicolas Pitre
+ * Copyright:   (C) 2001 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 version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#ifndef __ASM_ARCH_MEMORY_H
+#define __ASM_ARCH_MEMORY_H
+
+/*
+ * Physical DRAM offset.
+ */
+#define PHYS_OFFSET     UL(0xa0000000)
+
+/*
+ * 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)         __virt_to_phys(x)
+#define __bus_to_virt(x)         __phys_to_virt(x)
+
+/*
+ * The nodes are matched with the physical SDRAM banks as follows:
+ *
+ *      node 0:  0xa0000000-0xa3ffffff  -->  0xc0000000-0xc3ffffff
+ *      node 1:  0xa4000000-0xa7ffffff  -->  0xc4000000-0xc7ffffff
+ *      node 2:  0xa8000000-0xabffffff  -->  0xc8000000-0xcbffffff
+ *      node 3:  0xac000000-0xafffffff  -->  0xcc000000-0xcfffffff
+ *
+ * This needs a node mem size of 26 bits.
+ */
+#define NODE_MEM_SIZE_BITS      26
+
+#if !defined(__ASSEMBLY__) && defined(CONFIG_MACH_ARMCORE) && defined(CONFIG_PCI)
+void cmx270_pci_adjust_zones(int node, unsigned long *size,
+                             unsigned long *holes);
+
+#define arch_adjust_zones(node, size, holes) \
+        cmx270_pci_adjust_zones(node, size, holes)
+
+#define ISA_DMA_THRESHOLD       (PHYS_OFFSET + SZ_64M - 1)
+#endif
+
+#endif