| /* |
| * arch/arm/mach-sa1100/include/mach/memory.h |
| * |
| * Copyright (C) 1999-2000 Nicolas Pitre <nico@fluxnic.net> |
| */ |
| |
| #ifndef __ASM_ARCH_MEMORY_H |
| #define __ASM_ARCH_MEMORY_H |
| |
| #include <asm/sizes.h> |
| |
| /* |
| * Physical DRAM offset is 0xc0000000 on the SA1100 |
| */ |
| #define PHYS_OFFSET UL(0xc0000000) |
| |
| #ifndef __ASSEMBLY__ |
| |
| #ifdef CONFIG_SA1111 |
| void sa1111_adjust_zones(unsigned long *size, unsigned long *holes); |
| |
| #define arch_adjust_zones(size, holes) \ |
| sa1111_adjust_zones(size, holes) |
| |
| #define ISA_DMA_THRESHOLD (PHYS_OFFSET + SZ_1M - 1) |
| #define MAX_DMA_ADDRESS (PAGE_OFFSET + SZ_1M) |
| |
| #endif |
| #endif |
| |
| /* |
| * Because of the wide memory address space between physical RAM banks on the |
| * SA1100, it's much convenient to use Linux's SparseMEM support to implement |
| * our memory map representation. Assuming all memory nodes have equal access |
| * characteristics, we then have generic discontiguous memory support. |
| * |
| * The sparsemem banks are matched with the physical memory bank addresses |
| * which are incidentally the same as virtual addresses. |
| * |
| * node 0: 0xc0000000 - 0xc7ffffff |
| * node 1: 0xc8000000 - 0xcfffffff |
| * node 2: 0xd0000000 - 0xd7ffffff |
| * node 3: 0xd8000000 - 0xdfffffff |
| */ |
| #define MAX_PHYSMEM_BITS 32 |
| #define SECTION_SIZE_BITS 27 |
| |
| /* |
| * Cache flushing area - SA1100 zero bank |
| */ |
| #define FLUSH_BASE_PHYS 0xe0000000 |
| #define FLUSH_BASE 0xf5000000 |
| #define FLUSH_BASE_MINICACHE 0xf5100000 |
| |
| #endif |
