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Subject: Re: [PATCH v3 5/7] mtd: onenand: omap2: Unify OMAP2 and OMAP3 DMA
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On Tue, Nov 14, 2017 at 05:05:20PM +0200, Roger Quadros wrote:
> On 13/11/17 17:27, Ladislav Michl wrote:
> > Here it would be nice to have the same documentation Nokia had at the time
> > writing support for n8x0 as they clearly used few undocumented features.
> > Please see section 3.9.5 of above mentioned specs. Seems DMA slave should
> > be triggered by RDY not INT pin.
> 
> Correct. For RDY pin usage See 3.7.3 Handshaking Operation
> 
> "The handshaking feature allows the host system to simply monitor the RDY signal from the device to determine
> when the initial word of burst data is ready to be read."

To collect more documentation from Samsung, this appnote is also relevant:
http://trendol.free.fr/SMDK6410/842440S3C6410_ApplicationNotes_rev10.pdf
Section 7. OneNand, especially 7.5.1.3-6.