On 08/06/2015 11:16 AM, Doug Anderson wrote: > Shawn, > > On Wed, Aug 5, 2015 at 1:17 AM, Shawn Lin <shawn.lin at rock-chips.com> wrote: >> synopsys-dw-mshc supports three types of transfer mode. We add bindings >> and description for how to use them at runtime. Without idmac and edmac >> property, pio is the default transfer mode. Make sure that Idmac and emdac >> should not be used simultaneously. > > Can't you just read the HCON register? > > [17:16]: DMA_INTERFACE > 00: none > 01: DW_DMA > 10: GENERIC_DMA > 11: NON-DW-DMA If read it and get the exactly information. I think we can use that information. Best Regards, Jaehoon Chung >
