* Russell King - ARM Linux <linux@xxxxxxxxxxxxxxxx> [120419 10:46]: > On Wed, Apr 18, 2012 at 06:39:14PM -0700, Tony Lindgren wrote: > > Cool, you almost got it. Got it working for n800 and 770 with the following > > patch. Only extremely light testing done now so careful with this patch too.. > > > > Had to hack in support for the src_port and dst_port that's needed for > > omap_set_dma_src/dest_params on omap1. > > What's the relationship between these ports and the DMA request signal? > Is there a document which describes this? It's the source and destination addresses bus port, so it's more related to the addresses than request signal. I guess routing of the DMA request signal is what it really does. I'm now wondering if it might be possible to set it automatically based on source and destination address. There's some information in the omap5912 trm on pages 717 and 718: http://www.ti.com/litv/pdf/spru742 It says for CSDP source port "This field identifies the port originator of the transfer." Regards, Tony -- 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
