10:12 <rah> anyone know if there's u-boot source for the rk3576 available yet?

11:58 <Kwiboo> rah: vendor u-boot from https://github.com/ArmSoM/u-boot/commits/rk3576/ have commits that references rk3576

12:02 <naoki> hmm... is there any requirement to use as boot disk/partition (extlinux.conf, kernel, etc)? I'm trying to use USB memory to test some kernels on it but upstream u-boot doesn't boot from it... I can see files with "ls" command on u-boot

12:07 <qschulz> naoki: I believe the partition holding the extlinux.conf needs to be marked as bootable

12:07 <naoki> ah...

12:08 <naoki> Attribute flags: 0000000000000000 hmm??

12:08 <naoki> (checked working disk)

12:09 <naoki> GUID?

12:12 <naoki> Known attributes are:

12:12 <naoki> 2: legacy BIOS bootable

12:13 <naoki> oh I didn't know this attribute is for legacy

13:36 <naoki> ah it works now... I don't know why... I guess silly mistake...

13:56 <rah> Kwiboo: ah interesting, cheers

14:08 <mps_> naoki: I tried to conclude what is needed to detect partition with extlinux.conf but yet didn't found. looks like it depends on boot ROM of the SoC/SBC

14:09 <mps_> some use 'legacy flag' some partition type GUID and some are smart to find it without these

20:59 <naoki> mps_: what I need was just single linux partition (this time, GPT) with /boot... (I put SPL and u-boot on SPI)

21:00 <mps_> naoki: don't know for your board but usually you can set search path for extlinux.conf in u-boot variable and save this settings to flash

21:05 <naoki> I'm trying rock-5b for now

21:05 <naoki> no need to tweak u-boot env

21:05 <naoki> it can detected automatically while u-boot autoboot

21:07 <naoki> now I'm trying to put userland (ubuntu 24.04) to USB-SDD too (I'm doing same for riscv)

21:07 <urja> IIRC upstream u-boots default "distro boot" just looked for the extlinux conf on the first partition of every disk it found but it has been a while since i looked at it

21:08 <naoki> I noticed ubuntu 24.04 stock kernel (6.8) doesn't support USB on rock-5b, so I'm building linux-next for both riscv/mars and arm64/rock-5b ;)

21:09 <mps_> urja: hm, looks like this doesn't work on my (very) old lamobo R1, I have to set 'legacy boot' for partition

21:10 <urja> hmmmmmmm

21:11 <urja> i could remember wrong and/or it might have changed, both after and before the 2019-ish u-boot i'm using on my C201

21:12 <mps_> hm hm hm, could be because lamobo R1 could read only msdos and not gpt partition table

21:13 <urja> yeah i use GPT tables on my microSD cards (because ChromeOS lol)

21:13 <urja> i mean, i no longer would need on this one, but i keep them compatible so i can test on the another C201 that has stock fw

21:15 <naoki> (oh I forgot to prepare fstab and netplan...)

21:16 <mps_> yes, gpt works fine with u-boot on my two (old) chromebooks