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/*
* Copyright (C) 2009-2010 Freescale Semiconductor, Inc. All Rights Reserved.
*
* 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.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
#ifndef __ASM_ARCH_MEMORY_H
#define __ASM_ARCH_MEMORY_H
#include <asm/page.h>
#include <asm/sizes.h>
/*
* Physical DRAM offset.
*/
#define PHYS_OFFSET UL(0x40000000)
#ifndef __ASSEMBLY__
#ifdef CONFIG_DMA_ZONE_SIZE
#define MXS_DMA_ZONE_SIZE ((CONFIG_DMA_ZONE_SIZE * SZ_1M) >> PAGE_SHIFT)
#else
#define MXS_DMA_ZONE_SIZE ((12 * SZ_1M) >> PAGE_SHIFT)
#endif
static inline void __arch_adjust_zones(int node, unsigned long *zone_size,
unsigned long *zhole_size)
{
if (node != 0)
return;
/* Create separate zone to reserve memory for DMA */
zone_size[1] = zone_size[0] - MXS_DMA_ZONE_SIZE;
zone_size[0] = MXS_DMA_ZONE_SIZE;
zhole_size[1] = zhole_size[0];
zhole_size[0] = 0;
}
#define arch_adjust_zones(node, size, holes) \
__arch_adjust_zones(node, size, holes)
#endif
#define ISA_DMA_THRESHOLD (0x0003ffffULL)
#define CONSISTENT_DMA_SIZE SZ_32M
#endif
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