diff options
Diffstat (limited to 'arch/arm/mach-davinci/include/mach/memory.h')
| -rw-r--r-- | arch/arm/mach-davinci/include/mach/memory.h | 51 |
1 files changed, 51 insertions, 0 deletions
diff --git a/arch/arm/mach-davinci/include/mach/memory.h b/arch/arm/mach-davinci/include/mach/memory.h new file mode 100644 index 00000000..491249ef --- /dev/null +++ b/arch/arm/mach-davinci/include/mach/memory.h @@ -0,0 +1,51 @@ +/* + * DaVinci memory space definitions + * + * Author: Kevin Hilman, MontaVista Software, Inc. <source@mvista.com> + * + * 2007 (c) MontaVista Software, Inc. This file is licensed under + * the terms of the GNU General Public License version 2. This program + * is licensed "as is" without any warranty of any kind, whether express + * or implied. + */ +#ifndef __ASM_ARCH_MEMORY_H +#define __ASM_ARCH_MEMORY_H + +/************************************************************************** + * Included Files + **************************************************************************/ +#include <asm/page.h> +#include <asm/sizes.h> + +/************************************************************************** + * Definitions + **************************************************************************/ +#define DAVINCI_DDR_BASE 0x80000000 +#define DA8XX_DDR_BASE 0xc0000000 + +#if defined(CONFIG_ARCH_DAVINCI_DA8XX) && defined(CONFIG_ARCH_DAVINCI_DMx) +#error Cannot enable DaVinci and DA8XX platforms concurrently +#elif defined(CONFIG_ARCH_DAVINCI_DA8XX) +#define PLAT_PHYS_OFFSET DA8XX_DDR_BASE +#else +#define PLAT_PHYS_OFFSET DAVINCI_DDR_BASE +#endif + +#define DDR2_SDRCR_OFFSET 0xc +#define DDR2_SRPD_BIT BIT(23) +#define DDR2_MCLKSTOPEN_BIT BIT(30) +#define DDR2_LPMODEN_BIT BIT(31) + +/* + * Increase size of DMA-consistent memory region + */ +#define CONSISTENT_DMA_SIZE (14<<20) + +/* + * Restrict DMA-able region to workaround silicon bug. The bug + * restricts buffers available for DMA to video hardware to be + * below 128M + */ +#define ARM_DMA_ZONE_SIZE SZ_128M + +#endif /* __ASM_ARCH_MEMORY_H */ |