I am facing one issue with my apalis imx6 board, connected with gps(blox) on uart4(ttymxc3) but could not able to read data on uart.
below post saying this is DMA TX issue with kerne 4.9.88
Linux iMX6 UART Driver Issues, //https://www.toradex.com/community/questions/2998/linux-imx6-uart-driver-issues.html?childToView=48775#comment-48775
nothing is coming on uart
root#cat > /dev/ttymxc0 with 9600 or 115200 baud rate
Configured below serial driver…
using kernel kernel 4.9.87-640138-g18741
what can we the issue ?