Changing u-boot serial

vitech

Hello,
I'm trying to change u-boot console from default UART2 to UART1, changed name in device tree and parameters in configuration, still cant see any output. Can it be changed easily?
Also, can someone share full console output of booting process, starting from bootloader to loading kernel, this might help me.

时间的蝴蝶

If you just need to debug the device, refer to the following:
https://wiki.t-firefly.com/en/ROC-RK3308-CC/serial_debug.html
https://wiki.t-firefly.com/en/ROC-RK3308B-CC-PLUS/debug.html

Change the  debug serial is not a good idear.

vitech

I managed to set U-boot output to UART1, the reason was that I tried to program u-boot image to default rk3308 cfg address 0x4000 in RKDEVTool. After I changed it to 0x2000, all worked well.
Next step for me to connect to U-boot with JTAG (SWJ), seems like some peripheral re-init those pins, cause connection to cpu not working in u-boot unlike MaskRom, to which I can connect with OpenOCD. Anyway, work continues