[people/ms/u-boot.git] / arch / arm / include / asm / dma-mapping.h

/*
 * (C) Copyright 2007
 * Stelian Pop <stelian@popies.net>
 * Lead Tech Design <www.leadtechdesign.com>
 *
 * SPDX-License-Identifier:	GPL-2.0+
 */
#ifndef __ASM_ARM_DMA_MAPPING_H
#define __ASM_ARM_DMA_MAPPING_H

enum dma_data_direction {
	DMA_BIDIRECTIONAL	= 0,
	DMA_TO_DEVICE		= 1,
	DMA_FROM_DEVICE		= 2,
};

static void *dma_alloc_coherent(size_t len, unsigned long *handle)
{
	*handle = (unsigned long)malloc(len);
	return (void *)*handle;
}

static inline unsigned long dma_map_single(volatile void *vaddr, size_t len,
					   enum dma_data_direction dir)
{
	return (unsigned long)vaddr;
}

static inline void dma_unmap_single(volatile void *vaddr, size_t len,
				    unsigned long paddr)
{
}

#endif /* __ASM_ARM_DMA_MAPPING_H */
Commit	Line	Data
fa506a92 SP	1	/*
fa506a92 SP	2	* (C) Copyright 2007
c9e798d3	3	* Stelian Pop <stelian@popies.net>
fa506a92 SP	4	* Lead Tech Design <www.leadtechdesign.com>
fa506a92 SP	5	*
1a459660	6	* SPDX-License-Identifier: GPL-2.0+
fa506a92 SP	7	*/
	8	#ifndef __ASM_ARM_DMA_MAPPING_H
	9	#define __ASM_ARM_DMA_MAPPING_H
	10
	11	enum dma_data_direction {
	12	DMA_BIDIRECTIONAL = 0,
	13	DMA_TO_DEVICE = 1,
	14	DMA_FROM_DEVICE = 2,
	15	};
	16
	17	static void dma_alloc_coherent(size_t len, unsigned long handle)
	18	{
	19	*handle = (unsigned long)malloc(len);
	20	return (void )handle;
	21	}
	22
	23	static inline unsigned long dma_map_single(volatile void *vaddr, size_t len,
	24	enum dma_data_direction dir)
	25	{
	26	return (unsigned long)vaddr;
	27	}
	28
	29	static inline void dma_unmap_single(volatile void *vaddr, size_t len,
	30	unsigned long paddr)
	31	{
	32	}
	33
	34	#endif /* __ASM_ARM_DMA_MAPPING_H */