I have hardware with an Ik316 processor that I know is similar to the h616 and h313, I'm trying to create a u-boot for hardware testing, only it uses an emcp-type memory, when I compile in mainline mode the error appears: dram settings invalid, and when I compile using legacy mode it shows error: [439]HELLO! BOOT0 is starting May 13 2020 14:10:04! [444]BOOT0 commit : 593cf83 [447]set pll start [450]periph0 has been enabled [453]set pll end [455]unknown PMU [456] PMU: AXP806 [463]vaild to:8 select dram to0 [467]board init ok [469] DRAM BOOT DRIVE INFO: V0.52 [472] the chip id is 0x5d00 475]ic cant match axp, please check... I managed to get the dtb and tried to use them following the steps on this site : https://github.com/hexdump0815/u-boot-misc/blob/master/readme.h616-legacy but without success. I would like some help on how I can change these parameters and recompile.