Re: Getting to the bottom of the Dreamcast DMA issue

[Adrian M. <ad...@ne...>]

On Sun, 2007-07-15 at 19:09 +0100, Adrian McMenamin wrote:
> It appears it is not the sh_dmac code which is to blame, but the
> pvr2_dma code. If I fix the build to exclude pvr2_dma.c, the Dreamcast
> will boot with CONFIG_NR_ONCHIP_DMA_CHANNELS set correctly (ie to 4)
> 
> Plainly the pvr code is broken when it tries to take channel 4, not sure
> why though, will have a deeper look.


Further investigation shows that while the above holds true (though it
should be dma-pvr2.c obviously) I cannot boot the machine with the pvr
fb driver selected and if I don't select it I get no sound output -
(presumably this is because the sound is multiplexed with the video
output?).

The sound driver appears to be working perfectly other than there is no
output.