Dma-330 driver

Number of channels. I'm trying to get the plc driver up and running. When I insert the module I get "dma0chan0" entry appearing in /sys/class/dma/. However the device tree file entry defines number of channels as 8: ps7_dma_s: ps7-dma@f {. #dma-cells = ;.  · Zynq系列器件中DMA控制器采用ARM PL IP和r1p1版，结构框图如图2所示。 图2 ZYNQ DMA控制器结构示意图. 如图2所示，DMA控制器由指令加速引擎，AXI Master数据接口，AXI APB寄存器访问接口以及可以连接到PL的外设请求接口，数据缓冲FIFO和控制及状态产生 . linux / drivers / dma / plc Go to file Go to file T; Go to line L; Copy path Copy permalink. Cannot retrieve contributors at this time. lines ( sloc) KB Raw Blame Open with Desktop View raw View blame This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below.

Zynq Baremetal PS DMA (PL) working example here! Hi all, I want to share some knowledge, actually experience about Zynq PS DMA, a.k.a PL IP of ARM and a working example for me, which communicates a custom IP in PL part. Then my purpose is from time to time improve the usefullness of the core and program for different applications. Zynq系列器件中DMA控制器采用ARM PL IP和r1p1版，结构框图如图2所示。 图2 ZYNQ DMA控制器结构示意图. 如图2所示，DMA控制器由指令加速引擎，AXI Master数据接口，AXI APB寄存器访问接口以及可以连接到PL的外设请求接口，数据缓冲FIFO和控制及状态产生单元组成。. * For typical scenario, at 1word/burst, 10MB and 20MB xfers per req * should be enough for PM and MM respectively. */ #define MCODE_BUFF_PER_REQ /* Use this _only_ to wait on transient states */ #define UNTIL(t, s) while (!(_state(t) (s))) cpu_relax(); #ifdef PL_DEBUG_MCGEN static unsigned cmd_line; #define PL_DBGCMD_DUMP(off.

Maybe you can refer to the source in below dma proxy application. www.doorway.ru\+Linux\+pl Device Drivers. Debugging. Make you aware of the architecture and frameworks of Linux. Teach you how to read a simple device driver at a high level and. This application note provides examples of how to program the CoreLink DMA Controller DMA