[PATCH RFC 1/8] powerpc: mpc512x_dma: add support for data transfers between memory and i/o memory

[Lars-Peter Clausen]

On 07/12/2013 05:26 PM, Gerhard Sittig wrote:
[...]
]
> +		if (mchan->tcd_nunits)
> +			tcd->nbytes = mchan->tcd_nunits * 4;
> +		else
> +			tcd->nbytes = 64;

Just wondering where does the magic 64 come from?