mirror of
https://github.com/AsahiLinux/u-boot
synced 2024-12-29 22:43:10 +00:00
7be35ddd20
Change ioremap() to map_physmem(), as it is more used in u-boot. Signed-off-by: Thomas Chou <thomas@wytron.com.tw> Reviewed-by: Marek Vasut <marex@denx.de>
24 lines
553 B
C
24 lines
553 B
C
#ifndef __ASM_NIOS2_DMA_MAPPING_H
|
|
#define __ASM_NIOS2_DMA_MAPPING_H
|
|
|
|
#include <memalign.h>
|
|
#include <asm/io.h>
|
|
|
|
/*
|
|
* dma_alloc_coherent() return cache-line aligned allocation which is mapped
|
|
* to uncached io region.
|
|
*/
|
|
static inline void *dma_alloc_coherent(size_t len, unsigned long *handle)
|
|
{
|
|
unsigned long addr = (unsigned long)malloc_cache_aligned(len);
|
|
|
|
if (!addr)
|
|
return NULL;
|
|
|
|
invalidate_dcache_range(addr, addr + len);
|
|
if (handle)
|
|
*handle = addr;
|
|
|
|
return map_physmem(addr, len, MAP_NOCACHE);
|
|
}
|
|
#endif /* __ASM_NIOS2_DMA_MAPPING_H */
|