From: Maxime Ripard <maxime.ripard-wi1+55ScJUtKEb57/3fJTNBPR1lH4CV8@public.gmane.org>
To: Icenowy Zheng <icenowy-ymACFijhrKM@public.gmane.org>
Cc: Boris Brezillon
<boris.brezillon-wi1+55ScJUtKEb57/3fJTNBPR1lH4CV8@public.gmane.org>,
Russell King <linux-I+IVW8TIWO2tmTQ+vhA3Yw@public.gmane.org>,
Chen-Yu Tsai <wens-jdAy2FN1RRM@public.gmane.org>,
Rob Herring <robh+dt-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org>,
Mark Rutland <mark.rutland-5wv7dgnIgG8@public.gmane.org>,
"devicetree-u79uwXL29TY76Z2rM5mHXA@public.gmane.org"
<devicetree-u79uwXL29TY76Z2rM5mHXA@public.gmane.org>,
"linux-arm-kernel-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r@public.gmane.org"
<linux-arm-kernel-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r@public.gmane.org>,
"linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org"
<linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org>,
"linux-sunxi-/JYPxA39Uh5TLH3MbocFFw@public.gmane.org"
<linux-sunxi-/JYPxA39Uh5TLH3MbocFFw@public.gmane.org>
Subject: Re: [PATCH] ARM: dts: sun8i: add NAND controller node for A23/A33
Date: Thu, 25 Aug 2016 22:53:43 +0200 [thread overview]
Message-ID: <20160825205343.GJ32598@lukather> (raw)
In-Reply-To: <16141472026895-ECYPE5Ced+Nuio3avFS2gg@public.gmane.org>
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Hi,
On Wed, Aug 24, 2016 at 04:21:35PM +0800, Icenowy Zheng wrote:
> Hi Maxime,
>
> 24.08.2016, 14:02, "Maxime Ripard" <maxime.ripard-wi1+55ScJUtKEb57/3fJTNBPR1lH4CV8@public.gmane.org>:
> > Hi,
> >
> > On Tue, Aug 23, 2016 at 09:55:46PM +0800, Icenowy Zheng wrote:
> >> A23/A33 has a NAND controller which can now be used properly.
> >>
> >> Add a device node for it.
> >>
> >> The DMA function cannot work because of changed DMA IP block, so it's
> >> temporarily removed in the device node. However, with PIO mode it can still
> >> work.
> >
> > What is preventing the NAND driver to work with DMA with the sun6i driver?
>
> 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
--
Maxime Ripard, Free Electrons
Embedded Linux and Kernel engineering
http://free-electrons.com
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prev parent reply other threads:[~2016-08-25 20:53 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-08-23 13:55 [PATCH] ARM: dts: sun8i: add NAND controller node for A23/A33 Icenowy Zheng
[not found] ` <20160823135546.60179-1-icenowy-ymACFijhrKM@public.gmane.org>
2016-08-24 6:02 ` Maxime Ripard
2016-08-24 8:21 ` Icenowy Zheng
[not found] ` <16141472026895-ECYPE5Ced+Nuio3avFS2gg@public.gmane.org>
2016-08-25 20:53 ` Maxime Ripard [this message]
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