Commit 9fcdc78c authored by Bryan Wu's avatar Bryan Wu
Browse files

[Blackfin] arch: Add dma_map_page and dma_unmap_page stub for MMC SPI compiling 



Signed-off-by: default avatarBryan Wu <cooloney@kernel.org>
parent b4bb68f7

include/asm-blackfin/dma-mapping.h

+15 −0
Original line number Diff line number Diff line
@@ -27,6 +27,14 @@ void dma_free_coherent(struct device *dev, size_t size, void *vaddr, 
extern dma_addr_t dma_map_single(struct device *dev, void *ptr, size_t size,

				 enum dma_data_direction direction);



static inline dma_addr_t

dma_map_page(struct device *dev, struct page *page,

	     unsigned long offset, size_t size,

	     enum dma_data_direction dir)

{

	return dma_map_single(dev, page_address(page) + offset, size, dir);

}



/*

 * Unmap a single streaming mode DMA translation.  The dma_addr and size

 * must match what was provided for in a previous pci_map_single call.  All
@@ -38,6 +46,13 @@ extern dma_addr_t dma_map_single(struct device *dev, void *ptr, size_t size, 
extern void dma_unmap_single(struct device *dev, dma_addr_t dma_addr, size_t size,

			  enum dma_data_direction direction);



static inline void

dma_unmap_page(struct device *dev, dma_addr_t dma_addr, size_t size,

	       enum dma_data_direction dir)

{

	dma_unmap_single(dev, dma_addr, size, dir);

}



/*

 * Map a set of buffers described by scatterlist in streaming

 * mode for DMA.  This is the scather-gather version of the