diff options
Diffstat (limited to 'arch/arm/plat-mxc/include/mach/memory.h')
| -rw-r--r-- | arch/arm/plat-mxc/include/mach/memory.h | 54 |
1 files changed, 52 insertions, 2 deletions
diff --git a/arch/arm/plat-mxc/include/mach/memory.h b/arch/arm/plat-mxc/include/mach/memory.h index d7a8d3ebed57..e101be98acf4 100644 --- a/arch/arm/plat-mxc/include/mach/memory.h +++ b/arch/arm/plat-mxc/include/mach/memory.h @@ -1,5 +1,5 @@ /* - * Copyright 2004-2007 Freescale Semiconductor, Inc. All Rights Reserved. + * Copyright 2004-2009 Freescale Semiconductor, Inc. All Rights Reserved. */ /* @@ -11,7 +11,57 @@ #ifndef __ASM_ARCH_MXC_MEMORY_H__ #define __ASM_ARCH_MXC_MEMORY_H__ -#include <mach/hardware.h> +#include <asm/page.h> +#include <asm/sizes.h> + +/* Start of physical RAM */ +#if defined(CONFIG_MACH_MX35EVB) || defined(CONFIG_ARCH_MX51) +#define PHYS_OFFSET UL(0x90000000) +#endif + +#ifdef CONFIG_MACH_MX27ADS +#define PHYS_OFFSET UL(0xA0000000) +#endif + +#ifdef CONFIG_MACH_MX37_3DS +#define PHYS_OFFSET UL(0x40000000) +#endif + +#ifndef PHYS_OFFSET +#define PHYS_OFFSET UL(0x80000000) +#endif + +/* Size of contiguous memory for DMA and other h/w blocks */ +#ifdef CONFIG_ARCH_MX51 +#define CONSISTENT_DMA_SIZE (64 * 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 /* * Virtual view <-> DMA view memory address translations |