Turl changed the topic of #linux-sunxi to: Allwinner/sunxi /development discussion - did you try looking at our wiki? https://linux-sunxi.org - Don't ask to ask. Just ask and wait! - https://github.com/linux-sunxi/ - Logs at http://irclog.whitequark.org/linux-sunxi
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<jmcneill> MoeIcenowy: i haven't looked at bsp, does it use static edid too?
<jmcneill> none of the aux commands succeed
<jmcneill> DP_MAX_LINK_RATE/LANE_COUNT as well as EDID read all fail
<MoeIcenowy> jmcneill: no EDID
<MoeIcenowy> it just uses timing in FEX
<MoeIcenowy> and ignore any kind of EDID
<jmcneill> any aux commands at all?
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<anarsoul> jmcneill: that doesn't sound good
<anarsoul> IIRC aux has its own differential pair?
<MoeIcenowy> jmcneill: maybe it reads DPCD
<MoeIcenowy> let me check
<anarsoul> MoeIcenowy: u-boot reads DPCD to get max link rate and lane count
<MoeIcenowy> anarsoul: BSP anx9804 driver seems to wrapped DPCD code in #if 0
<anarsoul> I'm talking about mainline u-boot
<MoeIcenowy> ok
<MoeIcenowy> maybe I should reply jmcneill here
<MoeIcenowy> anarsoul: and if it fails will any error be shown?
<jmcneill> anarsoul: in case you missed it, hard coding max link rate, lane count, and edid made ryo's pinebook come alive
<anarsoul> MoeIcenowy: yes, if debug is enabled
<anarsoul> jmcneill: I saw it
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<anarsoul> MoeIcenowy: as far as I understand new batch has new panels
<anarsoul> MoeIcenowy: maybe its aux line isn't connected anywhere?
<jmcneill> we had 3 people get them, two workd
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<MoeIcenowy> so it's possible
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<MoeIcenowy> but the reason why MingcongBai's machine sometimes work is still mysterious
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<jmcneill> elbarto says he has a low success rate (15%) too
<MoeIcenowy> (it works without eMMC installed or power jack inserted
<MoeIcenowy> maybe some calibration is missing?
<MoeIcenowy> I think anarsoul's U-Boot driver is based on my Linux one, right?
<anarsoul> MoeIcenowy: yes
<MoeIcenowy> btw I think it's not simply AUX is not connected
<MoeIcenowy> anarsoul: ElBarto: if the code is not modified, can ANX6345 be accessed?
<MoeIcenowy> I remember in MingcongBai case Linux argues "bus locked" when accessing ANX6345
<MoeIcenowy> that means the chip is not responding
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<anarsoul> MoeIcenowy: ryo's pinebook was able to access ANX
<anarsoul> MoeIcenowy: maybe it wasn't ANX6345, but aux i2c?
<MoeIcenowy> anarsoul: bus locked error is reported by mv64xxx driver
<anarsoul> oh
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<anarsoul> MoeIcenowy: well, then it could be different issues
<MoeIcenowy> maybe it needs to be recheck again
<MoeIcenowy> if you have some needed test image
<MoeIcenowy> you could tell me, and I can forward it to MingcongBai
<jmcneill> so you want to try the image i sent to ryo?
<jmcneill> *do
<jmcneill> sorry, typing on tablet
<MoeIcenowy> anarsoul: this one has debug output
<MoeIcenowy> ?
<MoeIcenowy> btw I reviewed https://pastebin.aosc.io/paste/7jY-xJZ8elszSP2yQ7IwQQ and there's no "bus locked"
<jmcneill> this image falls backto hard coded values for failed aux commands, and works for ryo
<jmcneill> edid for 14" pinebook panel
<anarsoul> MoeIcenowy: so it's probably the same issue for MingcongBai?
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<MoeIcenowy> anarsoul: maybe
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<anarsoul> MoeIcenowy: well, we can define anx params and edid in dts...
<anarsoul> however it would be nice to figure out why aux isn't working
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<igraltist> hi
<igraltist> does the opi pc support sdxc speed for micro sdcards?
<pmpp_> i don't think so
<pmpp_> but pc+ and pc+2e have emmc with decent speed for a few bucks more
<igraltist> i have only opi pc and opi pc2
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<MoeIcenowy> embed-3d: BTW are you stlil working on the ths driver?
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<jakllsch> "sdxc speed" isn't really the way to term it... you probably mean UHS-I or UHS-II..
<DonkeyHotei> there's a uhs-ii now?
<jakllsch> maybe?
<jakllsch> (and I doubt the host controller in those SoCs can do UHS modes.. but i'm just guessing)
<jakllsch> apparently there's even a spec for UHS-III now
<veremitz> yeah controller willll be the limiting factor
<MoeIcenowy> uhs-ii needs 8 data lanes
<MoeIcenowy> 4 data lanes can reach at most uhs-1
<MoeIcenowy> and uhs-i needs voltage switching
<MoeIcenowy> which is supported by no sunxi boards
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<DonkeyHotei> what about a1/a2 classes?
<DonkeyHotei> MoeIcenowy: so 1.8v is not supported regardless? only 3.3v?
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<wens> MoeIcenowy: uhs-ii needs extra pins and a whole new different slot, so its irrelavant for sunxi
<wens> DonkeyHotei: depends both on the SoC variant, and the board layout
<wens> none of the boards bothered to properly route a configurable regulator for the I/O supply
<MoeIcenowy> Personally I think A class have little difference
<MoeIcenowy> at least for A1
* MoeIcenowy wanna purchase an A1 card for test
<DonkeyHotei> so, basically, all that's needed is any old class 10?
<buZz> yeah , ~5MB/s typical performance
<DonkeyHotei> is class 10 even needed?
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<buZz> its probably the max performance you'd get out of the slot
<buZz> (using a class 10 card)
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<MoeIcenowy> you can use class 10
<MoeIcenowy> but, don't use "old" class 10
<MoeIcenowy> and I assume A class can advance a lot
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<jmcneill> Are A2 class cards available yet? I am interested in command queueing aspect of this.
<KalPaOne> hi
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<anarsoul> MoeIcenowy: I haven't gotten any response from embed-3d regarding his ths driver
<KalPaOne> I'm wondering if the Oranje Pi Zero Plus: H5 has the capabilities to write a public key in ROM and making sure all software is signed by it. I'm interested in creating device which is secure. I read that on paper the Allwinner H5 has the capabilities but i was pointed to irc from the armbian forums.
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<buZz> the CPU is generally not aware of the software
<buZz> there's a bunch of layers between that, like a operating system
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<KalPaOne> @buZz how about a secure boot setup, where the kernel and modules at least can be verified against a pubkey written in an efuse?
<buZz> i kinda doubt that, but i'd be happy to be suprised
<buZz> s/suprised/proven wrong/
<KalPaOne> @buZz the datasheet: http://wiki.friendlyarm.com/wiki/images/d/de/Allwinner_H5_Datasheet_V1.0.pdf states: Security System
<KalPaOne> Rights Management(DRM) , information encryption/decryption, secure boot, secure JTAG and secure efuse
<KalPaOne> : The processor delivers hardware security features that enable trustzone security system, Digital
<buZz> sure, but is that functionality documented?
<buZz> if its not documented, odds are low its implemented
<KalPaOne> thats what i'm wondering myself :) there is documentation here about the efuses though on different chipsets: http://linux-sunxi.org/SID_Register_Guide
<buZz> but thats not AW's documentation
<buZz> thats ours
<buZz> 128bits is also -way- too small for any secure public key , tbh :P
<buZz> ah hey RSAKEY_HASH
<buZz> and ROTPK_HASH
<buZz> there you go
<buZz> even has some example code, how nice
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<KalPaOne> @buZz thank you i totally overlooked the TOC0 page... so do you consider that secure enough for a public key? im giving it a try :)
<buZz> heh yeah, 160bits is around there :P
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<jerbob92> MoeIcenowy, you do have rtl8189ES? Or are you just maintaining those drivers for fun?
<anarsoul> KalPaOne: IIRC once you switch your board to secure mode it's not reversible
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<KalPaOne> forgive my questions but im quite a novice @buZz but i thought it has 256bits on the ROTPK_HASH? http://linux-sunxi.org/SID_Register_Guide#ROTPK_HASH
<buZz> well , TOC0 page says > the signature doesn't use a standard algorithm, misses the last 4 bytes (bug!) and is stored in a non-standard way
<buZz> but thats just for the cert, i guess
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