MCU : imx6
Kernel : L3.0.35_4.1.0
- When I use memcopy from ddr to eim(using ioremap), memcopy function is good.
- So, I think there is no problem with eim settings.
SDMA test sample : unitest - mxc_sdma_memcopy_test.c sample source
- mem to mem test is good using sample source. (from DDR to DDR)
SDMA firmware version is .1(imx6q)
My plan is data transmission from DDR to EIM(FPGA) using SDMA.
I changed the address of wbuf or rbuf to EIM address(using ioremap_nocache to change to virtual memory), but chip select not responding.
Simply, I just modified the memory address(rbuf->eim virtual address or wbuf->eim virtual address) in the sample source.
But did not succeed