[PATCH RFC 0/8] MPC512x DMA slave s/g support, OF DMA lookup · Gerhard Sittig <hidden> · 2013-07-12
[PATCH RFC 1/8] powerpc: mpc512x_dma: add support for data transfers between memory and i/o memory · Gerhard Sittig <hidden> · 2013-07-12
Re: [PATCH RFC 1/8] powerpc: mpc512x_dma: add support for data transfers between memory and i/o memory · Lars-Peter Clausen <lars@metafoo.de> · 2013-07-14
[PATCH RFC 4/8] dts: mpc512x: prepare for preprocessor support · Gerhard Sittig <hidden> · 2013-07-12
[PATCH RFC 5/8] dma: mpc512x: use symbolic specifiers for DMA channels · Gerhard Sittig <hidden> · 2013-07-12
[PATCH RFC 7/8] dma: mpc512x: register for device tree channel lookup · Gerhard Sittig <hidden> · 2013-07-12
[PATCH RFC 8/8] HACK mmc: mxcmmc: enable clocks for the MPC512x · Gerhard Sittig <hidden> · 2013-07-12

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

From: Lars-Peter Clausen <lars@metafoo.de>
Date: 2013-07-14 10:05:25
Also in: linux-devicetree

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?