Re: [Qemu-devel] [PATCH 2/5] floppy: move dma setup + drive connect to fdctrl_init_common()

[Hervé Poussineau]

Hi,

Gerd Hoffmann a écrit :
> isa-fdc is completely qdev-ified with this patch applied, all
> configuration uses properties.
>
> sysbus-fdc needs dma_channel config fixed.  There is only one user
> (mips_jazz) which uses dma channel 0.  Can anyone knowing this
> platform suggest how to deal with it?  Is hardcoding fine?
>
>   

MIPS Jazz floppy drive should not be connected to ISA DMA, but to Jazz 
DMA. Unfortunately, atm, floppy emulation is too tied to isa dma 
controller to be able to do this (like esp which gets dma read/write 
function pointers)...
Either you can change floppy to handle other dma engines, or you can 
hardcode the dma channel to whatever you want (will be wrong in all 
cases). I simply ask you to keep dma enabled.

Hervé