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/*
* Copyright (C) 2004-2010 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 version 2 as
* published by the Free Software Foundation.
*/
#ifndef __ASM_ARCH_MXC_MEMORY_H__
#define __ASM_ARCH_MXC_MEMORY_H__
#include <asm/page.h>
#include <asm/sizes.h>
#ifndef CONFIG_RUNTIME_PHYS_OFFSET
#if defined CONFIG_ARCH_MX1
#define PHYS_OFFSET UL(0x08000000)
#elif defined CONFIG_ARCH_MX2
#ifdef CONFIG_MACH_MX21
#define PHYS_OFFSET UL(0xC0000000)
#endif
#ifdef CONFIG_MACH_MX27
#define PHYS_OFFSET UL(0xA0000000)
#endif
#elif defined CONFIG_ARCH_MX3
#define PHYS_OFFSET UL(0x80000000)
#endif
#ifdef CONFIG_ARCH_MX51
#define PHYS_OFFSET UL(0x90000000)
#endif
#ifdef CONFIG_ARCH_MX53
#define PHYS_OFFSET UL(0x70000000)
#endif
#ifdef CONFIG_ARCH_MX37
#define PHYS_OFFSET UL(0x40000000)
#endif
#ifndef PHYS_OFFSET
#define PHYS_OFFSET UL(0x80000000)
#endif
#endif
/* Size of contiguous memory for DMA and other h/w blocks */
#if defined(CONFIG_MX1_VIDEO)
/*
* Increase size of DMA-consistent memory region.
* This is required for i.MX camera driver to capture at least four VGA frames.
*/
#define CONSISTENT_DMA_SIZE SZ_4M
#endif /* CONFIG_MX1_VIDEO */
#if defined(CONFIG_MX3_VIDEO)
/*
* Increase size of DMA-consistent memory region.
* This is required for mx3 camera driver to capture at least two QXGA frames.
*/
#define CONSISTENT_DMA_SIZE SZ_8M
#endif /* CONFIG_MX3_VIDEO */
#ifdef CONFIG_ARCH_MX5
#define CONSISTENT_DMA_SIZE (96 * SZ_1M)
#else
#define CONSISTENT_DMA_SIZE (32 * SZ_1M)
#endif
#ifndef __ASSEMBLY__
#ifdef CONFIG_DMA_ZONE_SIZE
#define MXC_DMA_ZONE_SIZE ((CONFIG_DMA_ZONE_SIZE * SZ_1M) >> PAGE_SHIFT)
#else
#define MXC_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] - MXC_DMA_ZONE_SIZE;
zone_size[0] = MXC_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
#endif /* __ASM_ARCH_MXC_MEMORY_H__ */
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