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| author | Peter Tyser <ptyser@xes-inc.com> | 2010-04-12 22:28:08 -0500 | 
|---|---|---|
| committer | Wolfgang Denk <wd@denx.de> | 2010-04-13 09:13:12 +0200 | 
| commit | 819833af39a91fa1c1e8252862bbda6f5a602f7b (patch) | |
| tree | d5c9d1628643347ab2b5a8085acfa6f96709fda3 /arch/avr32/include/asm/dma-mapping.h | |
| parent | 61f2b38a17f5b21c59f2afe6cf1cbb5f28638cf9 (diff) | |
| download | olio-uboot-2014.01-819833af39a91fa1c1e8252862bbda6f5a602f7b.tar.xz olio-uboot-2014.01-819833af39a91fa1c1e8252862bbda6f5a602f7b.zip | |
Move architecture-specific includes to arch/$ARCH/include/asm
This helps to clean up the include/ directory so that it only contains
non-architecture-specific headers and also matches Linux's directory
layout which many U-Boot developers are already familiar with.
Signed-off-by: Peter Tyser <ptyser@xes-inc.com>
Diffstat (limited to 'arch/avr32/include/asm/dma-mapping.h')
| -rw-r--r-- | arch/avr32/include/asm/dma-mapping.h | 64 | 
1 files changed, 64 insertions, 0 deletions
| diff --git a/arch/avr32/include/asm/dma-mapping.h b/arch/avr32/include/asm/dma-mapping.h new file mode 100644 index 000000000..0be7804da --- /dev/null +++ b/arch/avr32/include/asm/dma-mapping.h @@ -0,0 +1,64 @@ +/* + * Copyright (C) 2006 Atmel Corporation + * + * See file CREDITS for list of people who contributed to this + * project. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation; either version 2 of + * the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, + * MA 02111-1307 USA + */ +#ifndef __ASM_AVR32_DMA_MAPPING_H +#define __ASM_AVR32_DMA_MAPPING_H + +#include <asm/io.h> +#include <asm/arch/cacheflush.h> + +enum dma_data_direction { +	DMA_BIDIRECTIONAL	= 0, +	DMA_TO_DEVICE		= 1, +	DMA_FROM_DEVICE		= 2, +}; +extern void *dma_alloc_coherent(size_t len, unsigned long *handle); + +static inline unsigned long dma_map_single(volatile void *vaddr, size_t len, +					   enum dma_data_direction dir) +{ +	extern void __bad_dma_data_direction(void); + +	switch (dir) { +	case DMA_BIDIRECTIONAL: +		dcache_flush_range(vaddr, len); +		break; +	case DMA_TO_DEVICE: +		dcache_clean_range(vaddr, len); +		break; +	case DMA_FROM_DEVICE: +		dcache_invalidate_range(vaddr, len); +		break; +	default: +		/* This will cause a linker error */ +		__bad_dma_data_direction(); +	} + +	return virt_to_phys(vaddr); +} + +static inline void dma_unmap_single(volatile void *vaddr, size_t len, +				    unsigned long paddr) +{ + +} + +#endif /* __ASM_AVR32_DMA_MAPPING_H */ |