ccfe27d700
Add DMA support for Microblaze. There are some part of this new feature: 1. Basic DMA support 2. Enable DMA debug option 3. Setup notifier Ad 1. dma-mapping come from powerpc and x86 version and it is based on generic dma-mapping-common.h Ad 2. DMA support debug features which is used in generic file. For more information please look at Documentation/DMA-API.txt Ad 3. notifier is very important to setup dma_ops. Without this part for example ll_temac driver failed because there are no setup dma operations. Signed-off-by: Michal Simek <monstr@monstr.eu>
41 lines
825 B
C
41 lines
825 B
C
/*
|
|
* Arch specific extensions to struct device
|
|
*
|
|
* This file is subject to the terms and conditions of the GNU General Public
|
|
* License v2. See the file "COPYING" in the main directory of this archive
|
|
* for more details.
|
|
*/
|
|
|
|
#ifndef _ASM_MICROBLAZE_DEVICE_H
|
|
#define _ASM_MICROBLAZE_DEVICE_H
|
|
|
|
struct device_node;
|
|
|
|
struct dev_archdata {
|
|
/* Optional pointer to an OF device node */
|
|
struct device_node *of_node;
|
|
|
|
/* DMA operations on that device */
|
|
struct dma_map_ops *dma_ops;
|
|
void *dma_data;
|
|
};
|
|
|
|
struct pdev_archdata {
|
|
};
|
|
|
|
static inline void dev_archdata_set_node(struct dev_archdata *ad,
|
|
struct device_node *np)
|
|
{
|
|
ad->of_node = np;
|
|
}
|
|
|
|
static inline struct device_node *
|
|
dev_archdata_get_node(const struct dev_archdata *ad)
|
|
{
|
|
return ad->of_node;
|
|
}
|
|
|
|
#endif /* _ASM_MICROBLAZE_DEVICE_H */
|
|
|
|
|