diff options
Diffstat (limited to 'arch/xtensa/include/asm/dma.h')
| -rw-r--r-- | arch/xtensa/include/asm/dma.h | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/arch/xtensa/include/asm/dma.h b/arch/xtensa/include/asm/dma.h index e30f3abf48f..bb099a373b5 100644 --- a/arch/xtensa/include/asm/dma.h +++ b/arch/xtensa/include/asm/dma.h @@ -37,15 +37,16 @@ * the size of the statically mapped kernel segment * (XCHAL_KSEG_{CACHED,BYPASS}_SIZE), ie. 128 MB. * - * NOTE: When the entire KSEG area is DMA capable, we substract + * NOTE: When the entire KSEG area is DMA capable, we subtract * one from the max address so that the virt_to_phys() macro * works correctly on the address (otherwise the address * enters another area, and virt_to_phys() may not return * the value desired). */ +#ifndef MAX_DMA_ADDRESS #define MAX_DMA_ADDRESS (PAGE_OFFSET + XCHAL_KIO_SIZE - 1) - +#endif /* Reserve and release a DMA channel */ extern int request_dma(unsigned int dmanr, const char * device_id); |