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/* SPDX-License-Identifier: GPL-2.0-only */
/*
* arch/arm/mach-footbridge/include/mach/memory.h
*
* Copyright (C) 1996-1999 Russell King.
*
* Changelog:
* 20-Oct-1996 RMK Created
* 31-Dec-1997 RMK Fixed definitions to reduce warnings.
* 17-May-1998 DAG Added __virt_to_bus and __bus_to_virt functions.
* 21-Nov-1998 RMK Changed __virt_to_bus and __bus_to_virt to macros.
* 21-Mar-1999 RMK Added PAGE_OFFSET for co285 architecture.
* Renamed to memory.h
* Moved PAGE_OFFSET and TASK_SIZE here
*/
#ifndef __ASM_ARCH_MEMORY_H
#define __ASM_ARCH_MEMORY_H
/*
* The footbridge is programmed to expose the system RAM at 0xe0000000.
* The requirement is that the RAM isn't placed at bus address 0, which
* would clash with VGA cards.
*/
#define BUS_OFFSET 0xe0000000
#define __virt_to_bus(x) ((x) + (BUS_OFFSET - PAGE_OFFSET))
#define __bus_to_virt(x) ((x) - (BUS_OFFSET - PAGE_OFFSET))
/*
* Cache flushing area.
*/
#define FLUSH_BASE 0xf9000000
#define FLUSH_BASE_PHYS 0x50000000
#endif
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