Hi, Yegor Yefremov : > I try to get sound and SD card working on at91sam9g45-ekes development > board using linux-next tree. As far as I understand AT_HDMAC is the > appropriate DMA driver for ARCH_AT91SAM9G45. Correct. > I resolved dependencies with this patch, so I could activate it for > my platform. > > --- a/drivers/dma/Kconfig > +++ b/drivers/dma/Kconfig > @@ -48,7 +48,7 @@ config DW_DMAC > > config AT_HDMAC > tristate "Atmel AHB DMA support" > - depends on ARCH_AT91SAM9RL > + depends on ARCH_AT91SAM9RL || ARCH_AT91SAM9G45 > select DMA_ENGINE > help > Support the Atmel AHB DMA controller. This can be integrated in Well, this patch was waiting for this other to reach mainline: http://www.arm.linux.org.uk/developer/patches/viewpatch.php?id=5621/1 It is true that you will need it. > Should this driver be also used for sound driver and MCI? Sure. For sound, maybe we will have to conform to the dma cyclic API introduced by dw_dmac driver. For MCI, here is a patch series that goes before the patch that will do the link between atmel_mci, at_hdmac and at91sam9g45. http://lkml.org/lkml/2009/9/17/224 This last patch is not posted to the mailing list yet, I am waiting for the others to reach mainline. I you are interested in it, you can have a preview here: ftp://ftp.linux4sam.org/devel/linux/2630_lnx4sam_patchset-tmp_20090828.tgz patch named : "at91/atmel-mci: inclusion of sd/mmc driver in at91sam9g45 chip and board" aka: 2630_lnx4sam_patchset-tmp/2.6.30-at91-exp-0033-at91-atmel-mci-inclusion-of-sd-mmc-driver-in-at91sa.patch Hope this helps, Best regards, -- Nicolas Ferre -- To unsubscribe from this list: send the line "unsubscribe linux-mmc" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
