Messages in this thread | | | From | Michal Suchanek <> | Date | Thu, 30 Apr 2015 18:56:18 +0200 | Subject | Re: [PATCH 0/3] Using SPI NOR flah on sunxi. |
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On 30 April 2015 at 18:30, <Thomas.Betker@rohde-schwarz.com> wrote: > Hello Michal: > >> I tried to connect a SPI NOR flash to my sunxi board and due to the > current >> sunxi SPI driver limitations it does not work. >> >> The SPI driver returns an error when more than 64 bytes are >> transferred at once >> due to lack of DMA support. > > Wouldn't it be easier to fix the SPI driver to handle transfers larger > than 64 bytes, filling and draining the FIFO multiple times if neccessary? > (As far as I can tell, most SPI drivers do this.) >
Yes, the intent is to fix this by adding dma support to the driver, eventually.
The patch might be still useful for other hardware with developing SPI support.
Thanks
Michal
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