lkml.org 
[lkml]   [2014]   [Mar]   [28]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
From
Subject[PATCH v7 0/2] Add Xilinx AXI Video DMA Engine driver
Date
Hi,

This is the driver for Xilinx AXI Video Direct Memory Access Engine.
It is a soft IP core, which provides high-bandwidth direct memory
access between memory and AXI4-Stream video type target peripherals
including peripherals which support AXI4-Stream Video Protocol. The
core provides efficient two dimensional DMA operations with independent
asynchronous read and write channel operation.

For more information on the IP, please refer to
http://www.xilinx.com/support/documentation/ip_documentation/axi_vdma/v6_1/pg020_axi_vdma.pdf

Use cases:
++++++++++
1. Xilinx Video Targeted Reference design
http://www.wiki.xilinx.com/Zynq+Base+TRD+14.5
2. Common Display Framework
http://events.linuxfoundation.org/sites/events/files/slides/20131024-elce.pdf

Regards,
Srikanth

Changes in v7:
- Fixed minor comments suggested by Jaswinder, Thanks.

Changes in v6:
- Fixed minor comments suggested by Andy, Thanks.

Changes in v5:
- Modified to accept only 1 frame per interleaved_dma() call, as
suggested by Jaswinder, Thanks.

Changes in v4:
- Rebased on v3.14.0-rc5
- Reverted the changes that were done for the earlier patch series,
1/3 - 'Support multiple interleaved frames with non-contiguous memory' as
suggested by Jaswinder, Thanks.

Changes in v3:
- Created a separate patch for the DT binding documentation as suggested by
Vinod, Thanks.
- Added support for interleaved frames with non-contiguous memory as suggested
by Lars, Thanks.
- Rebased on v3.14.0-rc2

Srikanth Thokala (2):
dma: Add Xilinx Video DMA DT Binding Documentation
dma: Add Xilinx AXI Video Direct Memory Access Engine driver support

.../devicetree/bindings/dma/xilinx/xilinx_vdma.txt | 75 ++
drivers/dma/Kconfig | 14 +
drivers/dma/Makefile | 1 +
drivers/dma/xilinx/Makefile | 1 +
drivers/dma/xilinx/xilinx_vdma.c | 1380 ++++++++++++++++++++
include/linux/amba/xilinx_dma.h | 47 +
6 files changed, 1518 insertions(+)
create mode 100644 Documentation/devicetree/bindings/dma/xilinx/xilinx_vdma.txt
create mode 100644 drivers/dma/xilinx/Makefile
create mode 100644 drivers/dma/xilinx/xilinx_vdma.c
create mode 100644 include/linux/amba/xilinx_dma.h

--
1.7.9.5



\
 
 \ /
  Last update: 2014-03-28 13:41    [W:0.481 / U:0.484 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site