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linux-next/arch/arm/mach-sa1100/include/mach/memory.h
Uwe Kleine-König c6f54a9b39 ARM: 8113/1: remove remaining definitions of PLAT_PHYS_OFFSET from <mach/memory.h>
The platforms selecting NEED_MACH_MEMORY_H defined the start address of
their physical memory in the respective <mach/memory.h>. With
ARM_PATCH_PHYS_VIRT=y (which is quite common today) this is useless
though because the definition isn't used but determined dynamically.

So remove the definitions from all <mach/memory.h> and provide the
Kconfig symbol PHYS_OFFSET with the respective defaults in case
ARM_PATCH_PHYS_VIRT isn't enabled.

This allows to drop the dependency of PHYS_OFFSET on !NEED_MACH_MEMORY_H
which prevents compiling an integrator nommu-kernel.
(CONFIG_PAGE_OFFSET which has "default PHYS_OFFSET if !MMU" expanded to
"0x" because CONFIG_PHYS_OFFSET doesn't exist as INTEGRATOR selects
NEED_MACH_MEMORY_H.)

Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2014-07-29 23:08:52 +01:00

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C

/*
* 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>
/*
* 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