On Wed, Apr 06, 2016 at 10:38:08AM +0530, Kedareswara rao Appana wrote: > This VDMA is a soft ip, which can be programmed to support > 32 bit addressing or greater than 32 bit addressing. > > When the VDMA ip is configured for 32 bit address space > the buffer address is specified by a single register > (0x5C for MM2S and 0xAC for S2MM channel). > > When the VDMA core is configured for an address space greater > than 32 then each buffer address is specified by a combination of > two registers. > > The first register specifies the LSB 32 bits of address, > while the next register specifies the MSB 32 bits of address. > > For example, 5Ch will specify the LSB 32 bits while 60h will > specify the MSB 32 bits of the first start address. > So we need to program two registers at a time. > > This patch adds the 64 bit addressing support to the vdma driver. Applied both, thanks -- ~Vinod -- To unsubscribe from this list: send the line "unsubscribe dmaengine" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
