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[linux-2.6-omap-h63xx.git] / arch / arm / mach-shark / include / mach / memory.h
1 /*
2  * arch/arm/mach-shark/include/mach/memory.h
3  *
4  * by Alexander Schulz
5  *
6  * derived from:
7  * arch/arm/mach-ebsa110/include/mach/memory.h
8  * Copyright (c) 1996-1999 Russell King.
9  */
10 #ifndef __ASM_ARCH_MEMORY_H
11 #define __ASM_ARCH_MEMORY_H
12
13 #include <asm/sizes.h>
14
15 /*
16  * Physical DRAM offset.
17  */
18 #define PHYS_OFFSET     UL(0x08000000)
19
20 #ifndef __ASSEMBLY__
21
22 static inline void __arch_adjust_zones(int node, unsigned long *zone_size, unsigned long *zhole_size) 
23 {
24   if (node != 0) return;
25   /* Only the first 4 MB (=1024 Pages) are usable for DMA */
26   zone_size[1] = zone_size[0] - 1024;
27   zone_size[0] = 1024;
28   zhole_size[1] = zhole_size[0];
29   zhole_size[0] = 0;
30 }
31
32 #define arch_adjust_zones(node, size, holes) \
33         __arch_adjust_zones(node, size, holes)
34
35 #define ISA_DMA_THRESHOLD       (PHYS_OFFSET + SZ_4M - 1)
36
37 #endif
38
39 #define __virt_to_bus(x)        __virt_to_phys(x)
40 #define __bus_to_virt(x)        __phys_to_virt(x)
41
42 /*
43  * Cache flushing area
44  */
45 #define FLUSH_BASE_PHYS         0x80000000
46 #define FLUSH_BASE              0xdf000000
47
48 #endif