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awilliam
GitHub Repository: awilliam/linux-vfio
 Path: blob/master/arch/arm/mach-davinci/include/mach/memory.h
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/*

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 * DaVinci memory space definitions

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 *

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 * Author: Kevin Hilman, MontaVista Software, Inc. <[email protected]>

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 *

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 * 2007 (c) MontaVista Software, Inc. This file is licensed under

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 * the terms of the GNU General Public License version 2. This program

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 * is licensed "as is" without any warranty of any kind, whether express

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 * or implied.

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 */

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#ifndef __ASM_ARCH_MEMORY_H

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#define __ASM_ARCH_MEMORY_H

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/**************************************************************************

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 * Included Files

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 **************************************************************************/

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#include <asm/page.h>

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#include <asm/sizes.h>

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/**************************************************************************

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 * Definitions

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 **************************************************************************/

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#define DAVINCI_DDR_BASE	0x80000000

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#define DA8XX_DDR_BASE		0xc0000000

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#if defined(CONFIG_ARCH_DAVINCI_DA8XX) && defined(CONFIG_ARCH_DAVINCI_DMx)

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#error Cannot enable DaVinci and DA8XX platforms concurrently

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#elif defined(CONFIG_ARCH_DAVINCI_DA8XX)

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#define PLAT_PHYS_OFFSET DA8XX_DDR_BASE

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#else

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#define PLAT_PHYS_OFFSET DAVINCI_DDR_BASE

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#endif

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#define DDR2_SDRCR_OFFSET	0xc

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#define DDR2_SRPD_BIT		BIT(23)

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#define DDR2_MCLKSTOPEN_BIT	BIT(30)

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#define DDR2_LPMODEN_BIT	BIT(31)

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/*

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 * Increase size of DMA-consistent memory region

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 */

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#define CONSISTENT_DMA_SIZE (14<<20)

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/*

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 * Restrict DMA-able region to workaround silicon bug.  The bug

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 * restricts buffers available for DMA to video hardware to be

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 * below 128M

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 */

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#define ARM_DMA_ZONE_SIZE	SZ_128M

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#endif /* __ASM_ARCH_MEMORY_H */

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