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>
34 lines
1.2 KiB
C
34 lines
1.2 KiB
C
/*
|
|
* arch/arm/mach-integrator/include/mach/memory.h
|
|
*
|
|
* Copyright (C) 1999 ARM Limited
|
|
*
|
|
* 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.
|
|
*
|
|
* This program is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
* GNU General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU General Public License
|
|
* along with this program; if not, write to the Free Software
|
|
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
|
|
*/
|
|
#ifndef __ASM_ARCH_MEMORY_H
|
|
#define __ASM_ARCH_MEMORY_H
|
|
|
|
/*
|
|
* Physical DRAM offset.
|
|
*/
|
|
#define PLAT_PHYS_OFFSET UL(0x00000000)
|
|
|
|
#define BUS_OFFSET UL(0x80000000)
|
|
#define __virt_to_bus(x) ((x) - PAGE_OFFSET + BUS_OFFSET)
|
|
#define __bus_to_virt(x) ((x) - BUS_OFFSET + PAGE_OFFSET)
|
|
#define __pfn_to_bus(x) (__pfn_to_phys(x) + (BUS_OFFSET - PHYS_OFFSET))
|
|
#define __bus_to_pfn(x) __phys_to_pfn((x) - (BUS_OFFSET - PHYS_OFFSET))
|
|
|
|
#endif
|