1*4882a593Smuzhiyun /*
2*4882a593Smuzhiyun * Copyright (C) 2013 Andes Technology Corporation
3*4882a593Smuzhiyun * Ken Kuo, Andes Technology Corporation <ken_kuo@andestech.com>
4*4882a593Smuzhiyun *
5*4882a593Smuzhiyun * SPDX-License-Identifier: GPL-2.0+
6*4882a593Smuzhiyun */
7*4882a593Smuzhiyun #ifndef __ASM_NDS_DMA_MAPPING_H
8*4882a593Smuzhiyun #define __ASM_NDS_DMA_MAPPING_H
9*4882a593Smuzhiyun
10*4882a593Smuzhiyun #include <linux/dma-direction.h>
11*4882a593Smuzhiyun
dma_alloc_coherent(size_t len,unsigned long * handle)12*4882a593Smuzhiyun static void *dma_alloc_coherent(size_t len, unsigned long *handle)
13*4882a593Smuzhiyun {
14*4882a593Smuzhiyun *handle = (unsigned long)memalign(ARCH_DMA_MINALIGN, len);
15*4882a593Smuzhiyun return (void *)*handle;
16*4882a593Smuzhiyun }
17*4882a593Smuzhiyun
dma_map_single(volatile void * vaddr,size_t len,enum dma_data_direction dir)18*4882a593Smuzhiyun static inline unsigned long dma_map_single(volatile void *vaddr, size_t len,
19*4882a593Smuzhiyun enum dma_data_direction dir)
20*4882a593Smuzhiyun {
21*4882a593Smuzhiyun return (unsigned long)vaddr;
22*4882a593Smuzhiyun }
23*4882a593Smuzhiyun
dma_unmap_single(volatile void * vaddr,size_t len,unsigned long paddr)24*4882a593Smuzhiyun static inline void dma_unmap_single(volatile void *vaddr, size_t len,
25*4882a593Smuzhiyun unsigned long paddr)
26*4882a593Smuzhiyun {
27*4882a593Smuzhiyun }
28*4882a593Smuzhiyun
29*4882a593Smuzhiyun #endif /* __ASM_NDS_DMA_MAPPING_H */
30