diff options
Diffstat (limited to 'arch/arm/mach-pxa/include/mach/memory.h')
| -rw-r--r-- | arch/arm/mach-pxa/include/mach/memory.h | 52 |
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 000000000000..552eb7fa6579 --- /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 |