Commit Graph

11 Commits (0da7b6eaa15b8ce9d60849e254f8f59c8ec26683)

Author SHA1 Message Date
Lars-Peter Clausen 8a2b29cdbe axi_damc: Add xfer_req to the FIFO source interface
The xfer_req signal will be high if DMA core the is expecting data.

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
2014-07-02 16:05:16 +02:00
Rejeesh Kutty fa998a406b dma: parameter fix 2014-04-24 15:50:16 -04:00
Lars-Peter Clausen dc7b3e085c axi_dmac: Fix issues with non 64-bit AXI masters
Make sure that the address generator behaves correctly when the buswidth is not
64-bit. Also since the source and destination can have different widths add
separate parameters for source and destination address alignment.

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
2014-04-10 14:54:22 +02:00
Lars-Peter Clausen 090d3aee04 axi_dmac: Change C_DMA_LENGTH_WIDTH default to 24
Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
2014-04-10 13:50:39 +02:00
Lars-Peter Clausen fa5ba6c09d axi_dmac: Make cyclic mode runtime configurable
Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
2014-04-10 13:50:39 +02:00
Lars-Peter Clausen 9b4539b7c2 axi_dmac: Add option to configure the FIFO size
Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
2014-03-26 12:51:35 +01:00
Lars-Peter Clausen ca7a70650d axi_dmac: Delay up_ack by one clock cycle
The read data also becomes available only with a delay of one clock cycle,
sending the ack too early will result in bogus register reads.

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
2014-03-25 14:35:52 +01:00
Lars-Peter Clausen a230e6505a axi_dmac: Add option to configure AXI standard 2014-03-25 12:47:27 +01:00
Lars-Peter Clausen 522a222d3a axi_dmac: Fix default value for DMA type
Vivado doesn't handle the case where we use symbolic constants for the default
value properly, so update this to use plain integers.

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
2014-03-17 13:20:49 +01:00
Lars-Peter Clausen f02ba999ae axi_dmac: Add support for DMA bus widths other than 64 bit
There were a few place in the core where it assumed a 64-bit wide bus. Make this
configurable using parameters. The patch also adds support for having different
DMA bus widths on the source and destination side.

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
2014-03-13 13:20:10 +01:00
Adrian Costina 831c19ea84 Added axi_dmac, axi_fifo and misc files in library 2014-03-06 18:16:02 +02:00