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c6f54a9b39
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>
35 lines
991 B
C
35 lines
991 B
C
/*
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* arch/arm/mach-rpc/include/mach/memory.h
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*
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* Copyright (C) 1996,1997,1998 Russell King.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 as
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* published by the Free Software Foundation.
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*
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* Changelog:
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* 20-Oct-1996 RMK Created
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* 31-Dec-1997 RMK Fixed definitions to reduce warnings
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* 11-Jan-1998 RMK Uninlined to reduce hits on cache
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* 08-Feb-1998 RMK Added __virt_to_bus and __bus_to_virt
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* 21-Mar-1999 RMK Renamed to memory.h
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* RMK Added TASK_SIZE and PAGE_OFFSET
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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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/*
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* Cache flushing area - ROM
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*/
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#define FLUSH_BASE_PHYS 0x00000000
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#define FLUSH_BASE 0xdf000000
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/*
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* Sparsemem support. Each section is a maximum of 64MB. The sections
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* are offset by 128MB and can cover 128MB, so that gives us a maximum
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* of 29 physmem bits.
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*/
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#define MAX_PHYSMEM_BITS 29
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#define SECTION_SIZE_BITS 26
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#endif
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