linux-kernel - Re: [PATCH 0/2] mtd: nand: omap2: Fix SDMA support for NAND DMA prefetch

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Message-ID: <20160422111243.68de7cb0@bbrezillon>
Date:	Fri, 22 Apr 2016 11:12:43 +0200
From:	Boris Brezillon <boris.brezillon@...e-electrons.com>
To:	Franklin S Cooper Jr <fcooper@...com>
Cc:	dwmw2@...radead.org, computersforpeace@...il.com, tony@...mide.com,
	rogerq@...com, linux-mtd@...ts.infradead.org,
	linux-kernel@...r.kernel.org, linux-omap@...r.kernel.org
Subject: Re: [PATCH 0/2] mtd: nand: omap2: Fix SDMA support for NAND DMA
 prefetch

On Fri, 15 Apr 2016 15:28:57 -0500
Franklin S Cooper Jr <fcooper@...com> wrote:

> NAND DMA prefetch for SDMA based devices has been broken for awhile. This
> patchset fixes it so SOCs that use the SDMA can make use of the NAND
> DMA prefetch.
> 
> I've decided to split this patchset from the slightly larger patchset that
> included EDMA support. Adding EDMA support will be added in a later
> patchset.
> 
> Tested using the latest master on:
> am37 gp evm
> 
> Due to a silicon issue Dra7 SoCs are unable to use NAND DMA prefetch.

Applied, thanks.

Boris

> 
> Cooper Jr., Franklin (2):
>   mtd: nand: omap2: Start dma request before enabling prefetch
>   mtd: nand: omap2: Fix high memory dma prefetch transfer
> 
>  drivers/mtd/nand/omap2.c | 22 +++++++---------------
>  1 file changed, 7 insertions(+), 15 deletions(-)
> 



-- 
Boris Brezillon, Free Electrons
Embedded Linux and Kernel engineering
http://free-electrons.com