Post Az4vQFtcbneXhvfAB6 by matt@toot.cafe
 (DIR) More posts by matt@toot.cafe
 (DIR) Post #Az4nJIeXA6Bub3mIsK by mntmn@mastodon.social
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       yooo we got debian 13 iso installed and booting on MNT Quasar prototype! @cas did most of the work and tina was barking and demanding snacks
       
 (DIR) Post #Az4nQSggFfj1kICHrc by tclaesson@mastodon.nu
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       @mntmn Cool!
       
 (DIR) Post #Az4q79vw3PntwRou00 by mntmn@mastodon.social
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       @cas btw we seem to be lucky with pcie clock, nvme is detected, just getting some irq/smmu related problems i can poke next week (`nvme 0001:01:00.0: of_irq_parse_pci: failed with rc=134`)
       
 (DIR) Post #Az4qffCuHlKsmVD9v6 by mntmn@mastodon.social
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       @loop0 here is some documentation https://source.mnt.re/reform/reform-qcs6490#mnt-quasar-6490-som-for-mnt-reform-series-computers
       
 (DIR) Post #Az4rxSVkKOpIZV4YbI by cas@social.treehouse.systems
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       @mntmn additional pics ^^absolutely incredible that we managed to get Linux up and running on the (hand placed!!) first revision PCB in <1 day> @cas did most of the work and tina was barking hmm i think it was mostly the other way around tbh
       
 (DIR) Post #Az4sCMX6puwQNIoh0a by matt@toot.cafe
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       @mntmn @cas What does the boot process look like on that SoC? If it was a generic Debian arm64 ISO, I'm guessing you used UEFI somehow.
       
 (DIR) Post #Az4vQEx87GrgmWIS0W by cas@social.treehouse.systems
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       @matt @mntmn we are booting with U-Boot. It's (roughly) ROM -> xbl_sec (el3) -> sbl1 (uart & hw init) -> tz -> hypervisor (gunyah) -> u-booteverything before u-boot is proprietary, we are hoping to be able to optionally disable hyp and get EL2 for KVM but work will be needed (probably from the community) to get the DSPs to work in that case so we have audio
       
 (DIR) Post #Az4vQFtcbneXhvfAB6 by matt@toot.cafe
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       @cas @mntmn Ugh, yeah, that's unfortunate. But could be worth it, if this SoC has much better power consumption than the RK3588. Or is there some other advantage you're hoping to get out of this SoC?
       
 (DIR) Post #Az4vQGPsfrSPJykvSa by cas@social.treehouse.systems
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       @matt @mntmn power consumption is a big factor, the other is that Lucie has somehow managed to pin things out so that it should be possible to drop in an sm8550 (snapdragon 8 gen2) or sm8750 (snapdragon 8 elite) soc into the same SoM (or at least with minimal changes), these have vastly better specs (8550 is like 1.4x faster in CPU alone, GPU diff is even bigger i think)
       
 (DIR) Post #Az4vmEFLQGJ0xiIk88 by mntmn@mastodon.social
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       @loop0 actually i really want that too :D
       
 (DIR) Post #Az62IABqpiXqX0Eosq by josch@floss.social
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       @cas @mntmn Is that a MNT Desktop Reform side panel that you are using to turn on the motherboard while us folks out here are still making do with our own home-grown solutions to send p1 to the board? :D
       
 (DIR) Post #Az62IBJge4PI1auajg by mntmn@mastodon.social
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       @josch @cas oh, yes it is :D
       
 (DIR) Post #AzKXEs2cjGbQuV8Nf6 by jbqueru@floss.social
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       @cas @matt @mntmn (Reviving old thread). I've benchmarked 6490 and 8550 side-by-side at some point. 8550 GPU is at least 3x as fast as that of 6490.
       
 (DIR) Post #AzKXEtjYR8XO9wEBDU by mntmn@mastodon.social
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       @jbqueru @cas @matt woah. out of curiosity, what were you using these SoCs for?