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

Peng Fan b51431 at freescale.com
Mon May 25 15:08:12 CEST 2015


Hi Stefano,

On Thu, May 21, 2015 at 09:16:32AM +0800, Peng Fan wrote:
>Hi Marek,
>
>On Wed, May 20, 2015 at 01:06:21PM +0200, Marek Vasut wrote:
>>On Wednesday, May 20, 2015 at 04:28:48 AM, 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:
>>
>>Which chips are those?
>i.MX7's L1 Cache line size is 64 bytes.
>>
>>> 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>
>>
>>Acked-by: Marek Vasut <marex at denx.de>

Will you apply this patch?

>>
>>Best regards,
>>Marek Vasut
>
>Regards,
>Peng.
>-- 
Regards,
Peng

-- 


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