diff options
Diffstat (limited to 'arch/arm/mach-sa1100/include/mach/memory.h')
| -rw-r--r-- | arch/arm/mach-sa1100/include/mach/memory.h | 45 |
1 files changed, 45 insertions, 0 deletions
diff --git a/arch/arm/mach-sa1100/include/mach/memory.h b/arch/arm/mach-sa1100/include/mach/memory.h new file mode 100644 index 00000000..cff31ee2 --- /dev/null +++ b/arch/arm/mach-sa1100/include/mach/memory.h @@ -0,0 +1,45 @@ +/* + * 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 PLAT_PHYS_OFFSET UL(0xc0000000) + +#ifdef CONFIG_SA1111 +#define ARM_DMA_ZONE_SIZE SZ_1M +#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 |