[Letux-kernel] DMA driver (was Re: [PATCH 00/20] A bunch of JZ4730 fixups for letux-kernel)

Paul Boddie paul at boddie.org.uk
Fri Jan 15 00:49:31 CET 2021

On Tuesday, 12 January 2021 15:17:13 CET H. Nikolaus Schaller wrote:
> Am 11.01.2021 um 22:59 schrieb Paul Boddie <paul at boddie.org.uk>:
> > 
> > (I have been investigating the DMA controller and have demonstrated it
> > working under L4Re, so I will now try and apply the lessons to the Linux
> > driver.)
> That will be great!

I found one problem with my earlier changes: the IRQ pending register on the 
JZ4730 has the flags in a different place and in reverse order. The additional 
patch supplied here updates the previous changes to hopefully fix interrupt 
flag testing.

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