| Russell King | a09e64f | 2008-08-05 16:14:15 +0100 | [diff] [blame^] | 1 | /* |
| 2 | * arch/arm/mach-pxa/include/mach/memory.h |
| 3 | * |
| 4 | * Author: Nicolas Pitre |
| 5 | * Copyright: (C) 2001 MontaVista Software Inc. |
| 6 | * |
| 7 | * This program is free software; you can redistribute it and/or modify |
| 8 | * it under the terms of the GNU General Public License version 2 as |
| 9 | * published by the Free Software Foundation. |
| 10 | */ |
| 11 | |
| 12 | #ifndef __ASM_ARCH_MEMORY_H |
| 13 | #define __ASM_ARCH_MEMORY_H |
| 14 | |
| 15 | /* |
| 16 | * Physical DRAM offset. |
| 17 | */ |
| 18 | #define PHYS_OFFSET UL(0xa0000000) |
| 19 | |
| 20 | /* |
| 21 | * Virtual view <-> DMA view memory address translations |
| 22 | * virt_to_bus: Used to translate the virtual address to an |
| 23 | * address suitable to be passed to set_dma_addr |
| 24 | * bus_to_virt: Used to convert an address for DMA operations |
| 25 | * to an address that the kernel can use. |
| 26 | */ |
| 27 | #define __virt_to_bus(x) __virt_to_phys(x) |
| 28 | #define __bus_to_virt(x) __phys_to_virt(x) |
| 29 | |
| 30 | /* |
| 31 | * The nodes are matched with the physical SDRAM banks as follows: |
| 32 | * |
| 33 | * node 0: 0xa0000000-0xa3ffffff --> 0xc0000000-0xc3ffffff |
| 34 | * node 1: 0xa4000000-0xa7ffffff --> 0xc4000000-0xc7ffffff |
| 35 | * node 2: 0xa8000000-0xabffffff --> 0xc8000000-0xcbffffff |
| 36 | * node 3: 0xac000000-0xafffffff --> 0xcc000000-0xcfffffff |
| 37 | * |
| 38 | * This needs a node mem size of 26 bits. |
| 39 | */ |
| 40 | #define NODE_MEM_SIZE_BITS 26 |
| 41 | |
| 42 | #if !defined(__ASSEMBLY__) && defined(CONFIG_MACH_ARMCORE) && defined(CONFIG_PCI) |
| 43 | void cmx270_pci_adjust_zones(int node, unsigned long *size, |
| 44 | unsigned long *holes); |
| 45 | |
| 46 | #define arch_adjust_zones(node, size, holes) \ |
| 47 | cmx270_pci_adjust_zones(node, size, holes) |
| 48 | |
| 49 | #define ISA_DMA_THRESHOLD (PHYS_OFFSET + SZ_64M - 1) |
| 50 | #endif |
| 51 | |
| 52 | #endif |