How can i boot mainline kernl on rk3588

ROCK 5 Series 5B/5B+
1

I tried using defconfig + the mainline DTB (rk3588-rock-5b-plus.dtb) but the board failed to boot.
I’m guessing it’s missing some driver configs.

2

Don’t guess. Check.

Defconfigs are usually OK. Missing drivers is unlikely to be the cause.

3

If you connect an USB serial console cable to pins 6 8 10 of the 40-pin header and make sure kernel loglevel is set to 7, you will see both bootloader and kernel messages and it should be easy to see what is wrong.

4

Thanks for your answer. After I use serial concsole. The log print below:

I can’t see kernel info.

Adding bank: 0x00200000 - 0xf0000000 (size: 0xefe00000)
Adding bank: 0x100000000 - 0x3fc000000 (size: 0x2fc000000)
Adding bank: 0x3fc500000 - 0x3fff00000 (size: 0x03a00000)
Adding bank: 0x4f0000000 - 0x500000000 (size: 0x10000000)
Total: 10633.39/11757.17 ms

Starting kernel …
5

You need to set kernel loglevel=7

You need to add that to the kernel cmdline

Where that is, depends on what method you use to boot, can be in extlinux.conf or grub.cfg or other config files

6

I already have loglevel=7 and earlycon=uart8250,mmio32,0xfeb50000,1500000 in cmdline. The issue is:

the pre-installed vmlinuz-6.1.84-8-rk2410 boots fine, but any self-compiled kernel (BSP build,
mainline, or Armbian) all hang at “Starting kernel …” with zero output. Is there something special
about the pre-installed kernel binary?

7

Should i update uboot？My version is rknext-2017.09-33-f73b1ee

Thanks.

8

Yes that is what I already thought you should do. That version you use I have never used and it prints almost no info. An Armbian current or edge based prints much more and is also more flexible and should run fine with mainline

I have put EDK2 UEFIv1.1 in SPI-flash (ROCK5B) and set it to ‘mainline‘, then you can just boot a standard distro kernel via grub-efi. When 6.19 or 7.0, most things work.