f4117ac9e2
This uncouple PHYS_OFFSET from the platform definitions, thereby facilitating run-time computation of the physical memory offset. Acked-by: Nicolas Pitre <nicolas.pitre@linaro.org> Acked-by: Viresh Kumar <viresh.kumar@st.com> Acked-by: H Hartley Sweeten <hsweeten@visionengravers.com> Acked-by: Magnus Damm <damm@opensource.se> Acked-by: Tony Lindgren <tony@atomide.com> Acked-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com> Acked-by: Wan ZongShun <mcuos.com@gmail.com> Acked-by: Kukjin Kim <kgene.kim@samsung.com> Acked-by: Eric Miao <eric.y.miao@gmail.com> Acked-by: Jiandong Zheng <jdzheng@broadcom.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
46 lines
978 B
C
46 lines
978 B
C
/*
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* arch/arm/mach-shark/include/mach/memory.h
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*
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* by Alexander Schulz
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*
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* derived from:
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* arch/arm/mach-ebsa110/include/mach/memory.h
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* Copyright (c) 1996-1999 Russell King.
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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 <asm/sizes.h>
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/*
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* Physical DRAM offset.
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*/
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#define PLAT_PHYS_OFFSET UL(0x08000000)
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#ifndef __ASSEMBLY__
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static inline void __arch_adjust_zones(unsigned long *zone_size, unsigned long *zhole_size)
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{
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/* Only the first 4 MB (=1024 Pages) are usable for DMA */
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/* See dev / -> .properties in OpenFirmware. */
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zone_size[1] = zone_size[0] - 1024;
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zone_size[0] = 1024;
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zhole_size[1] = zhole_size[0];
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zhole_size[0] = 0;
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}
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#define arch_adjust_zones(size, holes) \
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__arch_adjust_zones(size, holes)
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#define ISA_DMA_THRESHOLD (PHYS_OFFSET + SZ_4M - 1)
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#define MAX_DMA_ADDRESS (PAGE_OFFSET + SZ_4M)
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#endif
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/*
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* Cache flushing area
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*/
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#define FLUSH_BASE_PHYS 0x80000000
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#define FLUSH_BASE 0xdf000000
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#endif
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