#linux-sunxi on 2022-02-25 — irc logs at oftc.irclog.whitequark.org

2021-07-26 22:56 ChanServ changed the topic of #linux-sunxi to: Allwinner/sunxi development - Did you try looking at our wiki? https://linux-sunxi.org - Don't ask to ask. Just ask and wait for an answer! - This channel is logged at https://oftc.irclog.whitequark.org/linux-sunxi

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00:36 <smaeul> gamiee: jernej: I don't know what has broken in U-Boot. I haven't tried H3 recently. The patches themselves haven't changed, so it must be something upstream.

00:38 <smaeul> gamiee: the SCPI-based PSCI code doesn't have any timeout, so if crust is not running, bootm/bootz will hang (that's when U-Boot does PSCI init)

00:54 <smaeul> hmm, all of 2022.04-rc1-00149-g7a9618505a, 2022.04-rc1-00353-g63ed470e84, and 2022.04-rc2-00099-g13c2ed78ab work for me with orangepi_plus2e_defconfig. I wonder what's different with your setup

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05:09 <smaeul> A100 aka A133 user manual is available here: https://whycan.com/t_7738.html#p73832

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06:10 <swiftgeek> i guess F133 is somewhat related https://whycan.com/files/members/5266/F133_User_Manual_V1.0.pdf

06:11 <swiftgeek> nice, reference schematics for D1 https://whycan.com/files/members/3907/D1%E5%93%AA%E5%90%92%E5%BC%80%E5%8F%91%E6%9D%BF%E5%8E%9F%E7%90%86%E5%9B%BE20210224.pdf

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06:31 <swiftgeek> oh f133 is the same as d1?

06:32 <swiftgeek> hmm, different package for sure

06:33 <swiftgeek> and embedded DDR2

06:33 <swiftgeek> might be a fun alternative to V3s then

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06:38 <swiftgeek> oh and V3x with twice the ram now :D

06:42 <swiftgeek> ugh i still need to hunt down symbols/footprints

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06:49 <swiftgeek> http://dl.linux-sunxi.org/D1/D1_Nezha_development_board_schematic_diagram_20210224.pdf refuses to connect for me

06:51 <swiftgeek> oh nice https://github.com/SdtElectronics/Xassette-Asterisk (for f133)

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07:15 <gamiee> smaeul: hello! I used your branch patch/h3-scp (updated 25 days ago), and this one wasn't able to start crust. I will try commits you sent, thanks

07:21 <swiftgeek> ugh not sure how to related to here but had to manually fix url

07:21 <swiftgeek> https://raw.githubusercontent.com/wiki/XradioTech/xradiotech-wiki/doc/XR829/hdk/XR829_Ref_Design.zip

07:21 <swiftgeek> https://github.com/XradioTech/xradiotech-wiki/wiki/Download#XR829

07:22 <swiftgeek> those download pages from chip vendors are getting harder and harder to use

07:22 <swiftgeek> xD

07:25 <swiftgeek> oh cloning git of the wiki was probably easier than guessing xD

07:27 <swiftgeek> (and easier than fetching each individual file)

07:33 <swiftgeek> whoa, another chip with great amount of integrated DRAM https://whycan.com/files/members/3672/aic800g3_datasheet_v1.4.pdf

07:39 <swiftgeek> yeah it has FEL pin so has to be allwinner chip i guess xD

07:40 <swiftgeek> would be great if was actually available

07:45 <clever> swiftgeek: do the above docs detail how to configure the ddr2 controller?

07:46 <swiftgeek> i doubt it even says where they came from

07:46 <swiftgeek> (ip cores)

07:46 <clever> ah

07:47 <clever> ive been trying to figure out what i even have in the rpi soc's

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07:47 <clever> ive got source, but i dont really know what i can mess with

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07:48 <swiftgeek> awww no new columns here https://linux-sunxi.org/Used_IP_cores

07:49 <swiftgeek> but i guess that means we can still expect them to use dwc, at which point i guess umctl2 docs would be relevant? (just guessing)

07:50 <clever> got a link to umctl2?

07:52 <swiftgeek> welp those would be in synopsys walled garden, so not much for useful links xD

07:52 <clever> https://www.synopsys.com/dw/ipdir.php?ds=dwc_ddr_universal_umctl2

07:52 <clever> yeah, google found this

07:54 <clever> swiftgeek: any chance you happen to know other source for umctl2? that could be compared against https://github.com/librerpi/rpi-open-firmware/blob/master/firmware/sdram.c ?

08:04 <swiftgeek> clever: so you have RPi and trying to improve state of software on it?

08:04 <clever> yeah

08:06 <swiftgeek> welp, register can be reshuffled a bit by the implementer so it's hard to tell, especially without sources

08:06 <clever> yeah, that file is kinda just a big list of magic numbers

08:07 <clever> read_mr/write_mr are at least obvious, and match up to public docs

08:07 <swiftgeek> i mean like, if you had actual source, then sometimes a particular register name could be a dead giveaway of who is the supplier of IP core

08:07 <clever> there is an 0x53 divisor in there, and (19.2 * 0x53)/4 == 398.4, that sounds like the 400mhz clock for the ddr2 bus

08:07 <clever> i do have a header definition, that was auto-generated from the RTL

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14:51 <jernej> swiftgeek: You should use https with any linux-sunxi.org link, server doesn't redirect automatically. That's known issue.

14:51 <jernej> s/link/url/

14:53 <jernej> swiftgeek: that aic800g3 looks (almost?) exactly like Allwinner A100, check pdfs on link which smaeul provided a bit earlier

14:54 <jernej> so yes, it's rebranded Allwinner SoC for sure

14:54 <swiftgeek> > its security certificate expired 132 days ago.

14:54 <swiftgeek> xD

15:18 <jernej> ah, that's another issue

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