[PATCH 1/2] serial/imx: add DMA support
Philippe Rétornaz
philippe.retornaz at epfl.ch
Wed May 16 05:37:07 EDT 2012
Le vendredi 27 avril 2012 14:09:53 Huang Shijie a écrit :
> Hi,
>
> >> +/* see the "i.MX61 SDMA Scripts User Manual.doc" for the parameters */
> >
> > I can't see how the manual helps here.
>
> sorry, the comment is in the wrong place. it should placed at
> configuring the `slave_config`.
>
> > Please test this patch at least on one more SoC. There should be nothing
> > i.MX6 specific in here, the fact that the i.MX6 is mentioned several
> > times in the comments make me suspicious.
>
> There are bugs in the UART DMA code in the firmware before the imx6q.
> So we can not test the UART DMA except the imx6q arm2 board.
Does this mean that there is no hope for a working uart dma on imx31 ?
Thanks,
Philippe
More information about the linux-arm-kernel
mailing list