[PATCH v2 4/4] ARM: dts: sunxi: Improve A33 NAND transfers by using DMA

Maxime Ripard maxime.ripard at bootlin.com
Mon Apr 8 01:44:07 PDT 2019


On Mon, Apr 08, 2019 at 10:40:15AM +0200, Maxime Ripard wrote:
> On Mon, Apr 08, 2019 at 09:41:47AM +0200, Miquel Raynal wrote:
> > In the current state, A33 NAND controllers use PIO during
> > transfers. Throughput can be increased thanks to the use of DMA
> > (mostly during reads, because of the ECC pipelining feature).
> >
> > Besides the usual addition of DMA DT properties, because the A33
> > NAND DMA handling is different than for older SoCs, we must also
> > update the compatible which has recently been introduced for this
> > purpose.
> >
> > Signed-off-by: Miquel Raynal <miquel.raynal at bootlin.com>
>
> Applied, thanks!
>
> The rest is
> Acked-by: Maxime Ripard <maxime.ripard at bootlin.com>

Actually, the A23 was introduced before the A33, so we want to use
that in the compatible.

I've updated the patch while applying it, you might want to do the
same.

Maxime

--
Maxime Ripard, Bootlin
Embedded Linux and Kernel engineering
https://bootlin.com
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