mirror of
https://mirrors.bfsu.edu.cn/git/linux.git
synced 2024-12-09 03:54:23 +08:00
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>
32 lines
1000 B
C
32 lines
1000 B
C
/*
|
|
* arch/arm/mach-ixp2000/include/mach/memory.h
|
|
*
|
|
* Copyright (c) 2002 Intel Corp.
|
|
* Copyright (c) 2003-2004 MontaVista Software, Inc.
|
|
*
|
|
* This program is free software; you can redistribute it and/or modify it
|
|
* under the terms of the GNU General Public License as published by the
|
|
* Free Software Foundation; either version 2 of the License, or (at your
|
|
* option) any later version.
|
|
*/
|
|
|
|
#ifndef __ASM_ARCH_MEMORY_H
|
|
#define __ASM_ARCH_MEMORY_H
|
|
|
|
#define PLAT_PHYS_OFFSET UL(0x00000000)
|
|
|
|
#include <mach/ixp2000-regs.h>
|
|
|
|
#define IXP2000_PCI_SDRAM_OFFSET (*IXP2000_PCI_SDRAM_BAR & 0xfffffff0)
|
|
|
|
#define __phys_to_bus(x) ((x) + (IXP2000_PCI_SDRAM_OFFSET - PHYS_OFFSET))
|
|
#define __bus_to_phys(x) ((x) - (IXP2000_PCI_SDRAM_OFFSET - PHYS_OFFSET))
|
|
|
|
#define __virt_to_bus(v) __phys_to_bus(__virt_to_phys(v))
|
|
#define __bus_to_virt(b) __phys_to_virt(__bus_to_phys(b))
|
|
#define __pfn_to_bus(p) __phys_to_bus(__pfn_to_phys(p))
|
|
#define __bus_to_pfn(b) __phys_to_pfn(__bus_to_phys(b))
|
|
|
|
#endif
|
|
|