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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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      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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