Re: [PATCH v4 0/7] mtd: nand: Fix support for NAND DMA prefetch
From: Roger Quadros
Date: Fri Mar 11 2016 - 09:03:31 EST
On 11/03/16 01:56, Franklin S Cooper Jr wrote:
> NAND DMA prefetch has been broken for awhile and seems to have only
> worked for SDMA based devices
> This patchset fixes DMA prefetch to work on both EDMA and SDMA devices
> Test on:
> am335x gp evm
> am437x gp evm
> am37x gp evm
> This rev is pretty much the same as v2 which was blocked due to
> dependencies to Roger's update GPMC/NAND rework.
> This updated rev removes this dependency.
> Also it fixes an issue that was introduced when the eDMA driver was
> recently updated.
> Links to rev 3 patchset:
> Links to rev 2 patchset:
> Franklin S Cooper Jr (7):
> ARM: OMAP2+: gpmc-nand: Set omap2-nand's parent dev to GPMC dev
> ARM: dts: am33xx: Fix GPMC dma properties
> ARM: dts: am437x: Fix GPMC dma properties
Can you please fix the gpmc nodes in dm816x.dtsi and dm814x.dtsi as well?
You can use linux-next tree or  to see the latest changes to these files
that will end up in v4.6 and base your changes on that.
 Tony's omap-for-v4.6/dt
> mtd: nand: omap2: Support parsing dma channel information from DT
> mtd: nand: omap2: Start dma request before enabling prefetch
> mtd: nand: omap2: Fix high memory dma prefetch transfer
> ARM: OMAP2+: Update GPMC and NAND DT binding documentation
> Documentation/devicetree/bindings/bus/ti-gpmc.txt | 7 +++++-
> .../devicetree/bindings/mtd/gpmc-nand.txt | 2 +-
> arch/arm/boot/dts/am33xx.dtsi | 2 +-
> arch/arm/boot/dts/am4372.dtsi | 2 +-
> arch/arm/mach-omap2/gpmc-nand.c | 16 ++++++++++++-
> drivers/mtd/nand/omap2.c | 27 +++++++++-------------
> 6 files changed, 35 insertions(+), 21 deletions(-)