when using AXI DMA,the devicetree cause the linux startup problem

Hello,everyone!
In my project,I have used a AXI DMA ip in vivado v2015.4,then created dts and devicetree.dtb.When I put devicetree.dtb in the SD Card and start linux(version is linux-xlnx-xilinx-v2015.4.01),the linux stuck in "dma-pl330 f8003000.ps7-dma: DBUFF-128x8bytes Num_Chans-8 Num_Peri-4 Num_Events-16".And I have tried to change the register address from the auto address 0x40400000 to 0x41200000 and 0x78000000,but still not working. I have no idea on it,can anyone help me?

Thanks a lot!

0 albertabeef over 7 years ago

Hello,
Here is what I would check:
- verify that the base address in the hardware design corresponds to the base address in the device tree
- verify that this is the core causing the crash/hang ... comment out the core in the device tree to confirm that linux boots OK
- verify the clock source for the core ... is the clock active at the time the core is initialized ? will the core hang is there is no clock ?
Hope these ideas help,
Mario.
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0 Former Member over 7 years ago in reply to albertabeef

Thanks very much!
First,I have check that the hardware address is the same as in the device tree.
Second,when comment out the core in the device tree linux boots OK.
Third,I have used the PL Fabric clock FCLK_CLK0 100MHz for the core,is it any problem?
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