ewww

No, not really. It's just my hope if I can boot with mainline uboot then "maybe" ethernet work. I don't know how to fix RGMII so I tried to do something that I can do when looking for help from others 😅😅 I made that post about legacy uboot to take note for myself in case my sdcard dies (I have forgotten how to build it in the past 😅). And maybe it will help other people?

@hotnikq yes I know, that's why I made 2 post. 1 for legacy uboot, 1 for mainline uboot

@maka I will try soon. it's just boot log captured from uart

I have tried mainline uboot too, of course, there is no support, only evb-rk3568_defconfig here, I gave it a shot: with evb-rk3568_defconfig: no USB detected, although uboot shell detected emmc but I don't know why it can't find rootfs uuid on emmc, need some advice

I'm using sdcard for storing /boot and emmc/usb for rootfs. here are steps for building rockchip uboot (refer to https://forum.pine64.org/showthread.php?tid=14507 ) git clone --depth=1 -b next-dev https://github.com/rockchip-linux/u-boot.git u-boot git clone --depth=1 https://github.com/rockchip-linux/rkbin.git rkbin cd u-boot ln -sf ../rkbin/bin/rk35/rk3568_bl31_v1.42.elf bl31.elf ln -sf ../rkbin/bin/rk35/rk3568_bl32_v2.09.bin tee.bin make rk3568_defconfig make -j4 && make -j4 u-boot.itb tools/mkimage -n rk3568 -T rksd -d ../rkbin/bin/rk35/rk3566_ddr_1056MHz_v1.16.bin:spl/u-boot-spl.bin idblock.bin # creating sdcard partitions: echo -e "\ng\nn\n1\n16384\n+16M\nt\n11\nn\n2\n\n+256M\nt\n2\n1\nn\n\n\n\nw" | fdisk /dev/mmcblk0 echo -e "\nx\nn\n1\nuboot\nr\nw" | fdisk /dev/mmcblk0 It will look like # we got u-boot.itb and idblock.bin now write sdcard dd if=idblock.bin of=/dev/mmcblk0 seek=64 dd if=u-boot.itb of=/dev/mmcblk0p1 mount armbian image and /dev/mmcblk0p2 then copy (armbian) /boot to /dev/mmcblk0p2, edit extlinux.conf, change uuid of rootfs to emmc/usb rootfs partition, copy working dtb and edit its path respectively. if you want to use sdcard only, so put armbian rootfs on /dev/mmcblk0p3, else delete /dev/mmcblk0p3 as you wish rk3568_bl31_v1.42.elf rk3568_bl32_v2.09.bin rk3566_ddr_1056MHz_v1.16.bin these file names may change whenever rockchip pushes their new version Boot log

Dtbs are in attachments of @maka posted here. I don't have dts 😁. I didn't test wifi

I don't know how to fix RGMII, still need others help. All dtbs from @maka currently: runs kernel 6 (and 5.15) ✔️ USB 2.0 port ✔️ USB 3.0 port ✔️ display video HDMI ✔️ detect internal MMC ✔️ ethernet gigabit ✖️

@hotnikq the weird part: I have just tried kernel 5.15 with dtb from @maka and got same result, it seems like there is no hope 😅😅 @maka Thank you a lot for your time

@maka as the issue: RTL8211F interface can never obtain an IP or ping any other clients. @hotnikq I hope I can make mainline uboot to work, tried several time but failed 😐

@maka rk3566-box-demo_rboxr2_8.dtb still has the same issue, it can't connect although link up well, I think I will have to get an ethernet usb 😶 I just found something, that looks similar here https://forum.openwrt.org/t/help-with-rtl8211f-rk3588-tx-issues/154818

@maka [ 1.220060] mdio_bus stmmac-0: MDIO device at address 1 is missing. phy error here [ 33.093895] rk_gmac-dwmac fe010000.ethernet eth0: __stmmac_open: Cannot attach to PHY (error: -19)

@maka yes it is

@maka usb2 port stopped working, I can boot from usb3 port. ethernet issue is the same as before, probed but can not connect, I don't understand 😅 so the root cause is USB nodes voltage? thanks

@maka I'm trying to learn things, correct me if wrong: my kernel 4.19 dts has: tx_delay = <0x4f>; rx_delay = <0x2d>; I decompile your rk3566-box-demo_rboxr2_5.dtb to dts, it has tx_delay = <0x4b>; rx_delay = <0x2b>; so I change tx rx to 0x4f and 0x2d in rk3566-box-demo_rboxr2_5.dts then recompile withdtc -I dts -O dtb -f rk3566-box-demo_rboxr2_5.dts -o test.dtb loaded the test.dtb but still can not connect I forgot to mention, in https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/tree/arch/arm64/boot/dts/rockchip/rk3566-box-demo.dts?h=v6.3.8 the tx rx value is the same on my kernel 4.19 dts

@maka rk3566-box-demo_rboxr2_6.dtb dmesg