From mboxrd@z Thu Jan  1 00:00:00 1970
From: Marek Vasut <marex@denx.de>
To: Huang Shijie <b32955@freescale.com>
Subject: Re: [PATCH] dma: add new DMA control commands
Date: Thu, 18 Oct 2012 10:49:21 +0200
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Dear Huang Shijie,

> =E4=BA=8E 2012=E5=B9=B410=E6=9C=8818=E6=97=A5 16:16, Marek Vasut =E5=86=
=99=E9=81=93:
> > So we can't stream data from the chip? About time to adjust the MTD
> > framework to allow that. Maybe implement a command queue?
>=20
> IMHO, it's not possible. Because the READ-PAGE(00h-30h) command needs to
> check the busy status
> which means we have to stop in the middle, so we can not chain the all
> the read-pages DMA commands.

Can the DMA not branch?

> thanks
> Huang Shijie

Best regards,
Marek Vasut