Hi all, I have a short question about BPI-M1.
What I'm trying to do is to change the default console of Linux kernel from UART0 (ttyS0) to another. FYI, I'm now using mainline Linux (v4.9), mainline u-boot (v2017.01) and appending 'sun7i-a20-bananapi.dtb' to zImage. And this is my current status ...
UART connection : (UART0 for u-boot log printing, and UART3 for Linux log printing)
bootargs on DTS :
With these kind of configuration, I can see Linux booting log printed on ttyS1 (through UART3), but the problem is that the input is totally not working... (I cannot move on from 'Please press Enter to activate this console.') and I have no idea why the input is not working on ttyS1 (Of course, I double-checked my UART connection, and everything worked really well on ttyS0 (UART0).)
Is there anyone who can help me out with this issue?