I build a u-boot with it dd latest armbian.img and this u-boot, it showed: ▒[40]HELLO! BOOT0 is starting!r = 0x1d3 [43]BOOT0 commit : 4b34f2890a [46]set pll start [48]periph0 has been enabled [51]set pll end [54]unknow PMU [56]unknow PMU [59]PMU: AXP1530 [64]vaild para:15 select dram para1 [68]board init ok [69]enable_jtag [71]DRAM BOOT DRIVE INFO: V0.651 [74]the chip id is 0x2000 [77]chip id check OK [80]DRAM_VCC set to 1500 mv [86]read_calibration error [92]read_calibration error [98]read_calibration error [104]read_calibration error [110]read_calibration error [116]read_calibration error [122]read_calibration error [128]read_calibration error [135]read_calibration error [141]read_calibration error [143]retraining final error [152][AUTO DEBUG]32bit,1 ranks training success! [164]DRAM CLK =648 MHZ [166]DRAM Type =3 (3:DDR3,4:DDR4,7:LPDDR3,8:LPDDR4) [174]Actual DRAM SIZE =2048 M [177]DRAM SIZE =2048 MBytes, para1 = 310a, para2 = 8000000, dram_tpr13 = 6041 [190]DRAM simple test OK. [193]rtc standby flag is 0x0, super standby flag is 0x0 [198]dram size =2048 [201]Use rtc to store dram tuning para [205]card no is 0 [207]sdcard 0 line count 4 [209][mmc]: mmc driver ver 2021-10-12 13:56 [214][mmc]: b mmc 0 bias 4 [222][mmc]: Wrong media type 0x0 [225][mmc]: ***Try SD card 0*** [240][mmc]: HSSDR52/SDR25 4 bit [243][mmc]: 50000000 Hz [245][mmc]: 119850 MB [247][mmc]: ***SD/MMC 0 init OK!!!*** [319]Loading boot-pkg Succeed(index=0). [323][mmc]: b mmc 0 bias 4 [325]Entry_name = u-boot [332]Entry_name = monitor [336]Entry_name = dtbo [339]Entry_name = optee [343]Entry_name = dtb [346]mmc not para [347]Jump to second Boot. NOTICE: BL3-1: v1.0(debug):54937d5 NOTICE: BL3-1: Built : 17:44:59, 2021-12-13 NOTICE: BL3-1 commit: 8 NOTICE: cpuidle init version V2.0 NOTICE: secure os exist MESSAGE: [0x0] TEE-CORE: OP-TEE version: 81ab7a47 #1 2020年 05月 06日 星期三 02:40:04 UTC arm NOTICE: BL3-1: Preparing for EL3 exit to normal world NOTICE: BL3-1: Next image address = 0x4a000000 NOTICE: BL3-1: Next image spsr = 0x1d3 and I found this: [177]DRAM SIZE =2048 MBytes, para1 = 310a, para2 = 8000000, dram_tpr13 = 6041 is this para what we need?

Try this solution for the orange pi zero LTS, which is the same chip as the opiPC, but change the pin definitions to what you have. Do you have a 480x320 ili9341? Which one is it?

This one failed with "DRAM:This DRAM setup is currently not supported" I found something from kickpi's site:Linux_SDK_Compilation. including building u-boot https://github.com/tan-zhihao1/kickpi-book/blob/master/h618/en/04-SDK_Compilation_Guide/02-Linux_SDK_Compilation.md Its too huge so I deleted the folder "source" and "toolchains". hope it could help I tried to upload here but it shows errors. try this url: https://we.tl/t-t92S5rlCzD

@Jeeva Kandasamy I would freeze your kernel updates using armbian-config. I’m using a custom kernel so it might break your system. This might help fix your error. https://github.com/MichaIng/DietPi/issues/4600

Another problem here is that they don't have a schematic available for the rev2. They may have changed more than the DRAM? So the first u-boot I posted could have been fine, but the kernel DTS may need adjusting. Oh NVM. You did post the schematic EDIT: Not helpful. Its the same schematic I already have, which was incorrect as the variant I purchased is using DDR4. Not sure whats up with this company but they aren't very good at providing proper sources or essential unit information.