Subair Mullappilly

Thank you Christian, it worked, it as an issue of the gpio used in the config , this is a board which bought from china, they do have good boards...

i can share my dts, see below, share your email, i can sent you the dts file as it is, also which kernel you use ? 4.4. or 5.12 backlight:...

are you talking about u-boot/arch/arm/dts/rk3288-u-boot.dtsi ? idid try that }; chosen { stdout-path = &uart2; u-boot,spl-boot-order = &emmc, &sdmmc; }; }; &uart2 { clock-frequency = ; u-boot,dm-pre-reloc; status = "okay";...

CONFIG_DEBUG_UART_BASE=0xff690000 CONFIG_DEBUG_UART_CLOCK=24000000 CONFIG_DEBUG_UART_SHIFT=2

CONFIG_DEBUG_UART_BASE=0xff690000 to change to desired UART , correct, thank you

i tried this and now at least i can see some characters in the console with 115200, see below, any idea why this console not showing properly. Terminal ready (eey����7%%933�9���������7%%933�3��������������#-#1���;=7�y[y��-#1�753='�5#-!#%5#�����j:����!�15�55�9!#!'�������Q=#��9=#��3-#7�9!##59�7-5��s=-'57�!�3!#7�==-'=;'5�7�!5��m#�����5-='��a����5-='��u����5-='��e!75'��u;�[i������FDKQz��!�=--!#�����ai��%%9��-�95#�75-95��7!A)-%1A5�3!#7�mw{�-#�Yw9=��{!!�3!%�Yw9=��{!!75��%%9�������e/5/!'7�%-9!!'��3=-'57��5������eey���g51=95=7��)5...

miqi.dts /dts-v1/; #include "rk3288-miqi.dtsi" / { model = "mqmaker MiQi"; compatible = "mqmaker,miqi", "rockchip,rk3288"; chosen { stdout-path = "serial1:115200n8"; }; }; -------- &pinctrl { u-boot,dm-pre-reloc; }; &uart1 { u-boot,dm-pre-reloc; reg-shift...

basically all board dtsi file have same config for uart 0-4. the baud rate is alreday set at 115200 i changed to uart1 and 3, both are showing same weird...

i was able to configure the UART 4, infact the pin was wrong in uboot, corrected it and now it is booting. wrong one uart4 { uart4_xfer: uart4-xfer { rockchip,pins...

now the next issue board shows starting kernel .............. tried to do the same changes in dts/dtsi files on Kernel. no success