08:22 <MoeIcenowy> about previous topic of 28nm DSI, V833 datasheet seems to have document for 28nm DSI

20:08 <gamiee> Hi, please, on Banana Pi M2+, u-boot can't boot Linux from eMMC. I'm trying to compare dts and defconfig with device I know on which eMMC boot works (Orange Pi Zero Plus 2), but there is almost no differences. Any ideas where can be problem, or where I should look for? Log: https://hastebin.com/woqaficici.yaml Thanks

20:10 <gamiee> (note, the eMMC works just fine from the Linux, just u-boot have some weird issues with it)

20:28 <anarsoul> gamiee: maybe it's not powered?

20:28 <anarsoul> in u-boot

20:28 <anarsoul> if something's not working check power and clocks :)

20:36 <gamiee> anarsoul: well, the most interesting thing is that SPL see MMC2 and boot the main u-boot from it, but after that, MMC2 doesn't work at all (mmc dev 2 returns Card did not respond to voltage select!). So I guess power and clock is fine (or it works differently?). Is there any easy way to check power and clocks, or manually by finding test pads (if there are any)?

20:36 <anarsoul> my guess is that u-boot initializes axp (or whatever regulator it uses) and thus emmc loses power

20:37 <anarsoul> you should be able to confirm it with multimeter if you have board schematics

20:37 <anarsoul> or emmc pinout

20:45 <gamiee> this h3 board doesn't use any pmic, the eMMC and SD is supplied from VCC-IO, which is connected to 3V3, but togglable via VCC-IO-EN. Since the SD Card works fine, I can guess the power is ok (since it's same rail)

20:47 <anarsoul> then it's something about clock

20:47 <anarsoul> :)