mirror of
https://github.com/brain-hackers/u-boot-brain
synced 2024-09-12 15:53:21 +09:00
![Wolfgang Denk](/assets/img/avatar_default.png)
Signed-off-by: Wolfgang Denk <wd@denx.de> [trini: Fixup common/cmd_io.c] Signed-off-by: Tom Rini <trini@ti.com>
49 lines
1016 B
C
49 lines
1016 B
C
/*
|
|
* Copyright (C) 2006 Atmel Corporation
|
|
*
|
|
* SPDX-License-Identifier: GPL-2.0+
|
|
*/
|
|
#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 */
|