[U-Boot] [PATCH] imx: dma: correct MXS_DMA_ALIGNMENT

[Stefano Babic]

On 20/05/2015 04:28, Peng Fan wrote:
> We should not hardcode MXS_DMA_ALIGNMENT to 32, since we can not guarantee
> that socs' cache line size is 32 bytes.
> If on chips whose cache line size is 64 bytes, error occurs:
> "
> NAND:  ERROR: v7_dcache_inval_range - start address is not aligned - 0xbdf1d1a0
> ERROR: v7_dcache_inval_range - stop address is not aligned - 0xbdf1f4a0
> ERROR: v7_dcache_inval_range - start address is not aligned - 0xbdf1d1a0
> "
> Align MXS_DMA_ALIGNMENT with ARCH_DMA_MINALIGN whose value is same to
> CONFIG_SYS_CACHELINE_SIZE if CONFIG_SYS_CACHELINE_SIZE defined.
> 
> Signed-off-by: Peng Fan <Peng.Fan at freescale.com>
> ---
>  arch/arm/include/asm/imx-common/dma.h | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/arch/arm/include/asm/imx-common/dma.h b/arch/arm/include/asm/imx-common/dma.h
> index d5c1f7f..7d421b3 100644
> --- a/arch/arm/include/asm/imx-common/dma.h
> +++ b/arch/arm/include/asm/imx-common/dma.h
> @@ -22,7 +22,7 @@
>  #define	DMA_PIO_WORDS		CONFIG_ARCH_DMA_PIO_WORDS
>  #endif
>  
> -#define MXS_DMA_ALIGNMENT	32
> +#define MXS_DMA_ALIGNMENT	ARCH_DMA_MINALIGN
>  
>  /*
>   * MXS DMA channels
> 
Applied to u-boot-imx, thanks!

Best regards,
Stefano Babic


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