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Date: Thu, 25 Aug 2016 22:53:43 +0200
From: Maxime Ripard <maxime.ripard@free-electrons.com>
To: Icenowy Zheng <icenowy@aosc.xyz>
Cc: Boris Brezillon <boris.brezillon@free-electrons.com>,
        Russell King <linux@armlinux.org.uk>, Chen-Yu Tsai <wens@csie.org>,
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Subject: Re: [PATCH] ARM: dts: sun8i: add NAND controller node for A23/A33
Message-ID: <20160825205343.GJ32598@lukather>
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Hi,

On Wed, Aug 24, 2016 at 04:21:35PM +0800, Icenowy Zheng wrote:
> Hi Maxime,
>=20
> 24.08.2016, 14:02, "Maxime Ripard" <maxime.ripard@free-electrons.com>:
> > Hi,
> >
> > On Tue, Aug 23, 2016 at 09:55:46PM +0800, Icenowy Zheng wrote:
> >> =A0A23/A33 has a NAND controller which can now be used properly.
> >>
> >> =A0Add a device node for it.
> >>
> >> =A0The DMA function cannot work because of changed DMA IP block, so it=
's
> >> =A0temporarily removed in the device node. However, with PIO mode it c=
an still
> >> =A0work.
> >
> > What is preventing the NAND driver to work with DMA with the sun6i driv=
er?
>
> It seems that under sun6i we should use dedicated rx and tx DMAs, but not=
 a
> "rxtx" DMA.

Ah, I see. I just applied your patch, thanks!
Maxime

--=20
Maxime Ripard, Free Electrons
Embedded Linux and Kernel engineering
http://free-electrons.com

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