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37 lines
1.0 KiB
37 lines
1.0 KiB
/* SPDX-License-Identifier: GPL-2.0 */ |
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/* |
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* arch/arm/mach-sa1100/include/mach/memory.h |
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* |
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* Copyright (C) 1999-2000 Nicolas Pitre <[email protected]> |
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*/ |
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#ifndef __ASM_ARCH_MEMORY_H |
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#define __ASM_ARCH_MEMORY_H |
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#include <linux/sizes.h> |
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/* |
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* Because of the wide memory address space between physical RAM banks on the |
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* SA1100, it's much convenient to use Linux's SparseMEM support to implement |
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* our memory map representation. Assuming all memory nodes have equal access |
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* characteristics, we then have generic discontiguous memory support. |
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* |
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* The sparsemem banks are matched with the physical memory bank addresses |
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* which are incidentally the same as virtual addresses. |
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* |
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* node 0: 0xc0000000 - 0xc7ffffff |
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* node 1: 0xc8000000 - 0xcfffffff |
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* node 2: 0xd0000000 - 0xd7ffffff |
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* node 3: 0xd8000000 - 0xdfffffff |
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*/ |
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#define MAX_PHYSMEM_BITS 32 |
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#define SECTION_SIZE_BITS 27 |
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/* |
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* Cache flushing area - SA1100 zero bank |
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*/ |
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#define FLUSH_BASE_PHYS 0xe0000000 |
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#define FLUSH_BASE 0xf5000000 |
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#define FLUSH_BASE_MINICACHE 0xf5100000 |
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#endif
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