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NAND DRIVER: rk3368 support nand.

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using __dma_map_area and virt_to_phys instead of rknand_dma_map_single
 and rknand_dma_unmap_single.
    dma_map_single need dev config dma ops struct and config dma_mask.
NAND flash driver has not this config and got the incorrect phy addr return by
dma_map_single.
This commit is contained in:
Zhaoyifeng
2015-04-14 17:29:24 +08:00
parent 307f76c3cc
commit e1bce0140d
1 changed files with 9 additions and 0 deletions
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9
arch/arm/mach-rockchip/rknandbase.c
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@@ -156,13 +156,22 @@ EXPORT_SYMBOL(rknand_dma_flush_dcache);
unsigned long rknand_dma_map_single(unsigned long ptr,int size,int dir)
{
#ifdef CONFIG_ARM64
__dma_map_area((void*)ptr, size, dir);
return ((unsigned long )virt_to_phys((void *)ptr));
#else
return dma_map_single(NULL,(void*)ptr,size, dir?DMA_TO_DEVICE:DMA_FROM_DEVICE);
#endif
}
EXPORT_SYMBOL(rknand_dma_map_single);
void rknand_dma_unmap_single(unsigned long ptr,int size,int dir)
{
#ifdef CONFIG_ARM64
__dma_unmap_area(phys_to_virt(ptr), size, dir);
#else
dma_unmap_single(NULL, (dma_addr_t)ptr,size, dir?DMA_TO_DEVICE:DMA_FROM_DEVICE);
#endif
}
EXPORT_SYMBOL(rknand_dma_unmap_single);