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

Marek Vasut marex at denx.de
Wed May 20 13:06:21 CEST 2015


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?

> 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>

Best regards,
Marek Vasut


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