rellla 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 - *only registered users can talk*
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<suprothunderbolt> LRCK_PERIOD looks a bit confusing for i2s... In left J mode it's set to slot width and doesn't take into account number of slots... which might be correct, but the docs and timing look like it should be * the number of slots...
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<smaeul> suprothunderbolt: which SoC and which doc are you looking at? there are several slightly different variants of the i2s block
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<smaeul> e.g. A64 manual says "I2S / Left-Justified / Right-Justified mode: Number of BCLKs within each individual channel width (Left or Right)"
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<suprothunderbolt> smaeul, A64
<smaeul> the Linux driver was updated to match the doc I quoted, but it's always possible that the doc is wrong. You'd have to check with a logic analyzer if the behavior seems wrong
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<wens> spotted a H616 TV box on the local ebay going for 150 USD ...
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<suprothunderbolt> smaeul, I'm a bit confused if that means per channel (left or right) or per individual channel (1-8) in a "side". The issue i'm trying to solve is that I'm only seeing the first 4 channels of 8.
<suprothunderbolt> so it should either be 32 or 128
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<suprothunderbolt> 128 doesn't work. 32 or 64 interestingly both just give me the first 4 channels...
<smaeul> are you sure you want left justified and not PCM if you're doing TDM?
<suprothunderbolt> not totally sure, but I think so, the codec i'm using (pcm3168a) supports i2s and left j in TDM mode
<suprothunderbolt> but only supports the other modes in non-TDM
<suprothunderbolt> a confusing thing is that in the timing diagram for the a64 channels are listed odd on one LRCK, even on the other, the TI docs list channels as 1-8 in order
<smaeul> hmm, so I think you're probably right that it's the sum of all channels in that side
<smaeul> you could try setting `lrck_period = slot_width * slots / 2`
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<suprothunderbolt> smaeul, alas I did just that, and it times out on arecord / aplay
<suprothunderbolt> I just tried i2s mode instead of left_j and it starts fine but I can't see anything on any channel. On left j it works fine for first 4 in and out
<smaeul> which first four? two left and two right, or all four left?
<suprothunderbolt> channels 1-4
<suprothunderbolt> which would be 0 2 4 6 in the allwinner diagram
<suprothunderbolt> so all left
<suprothunderbolt> maybe if I say LRCK is inverted I'll just get the others?
<smaeul> > In the case of I2S, left-justified, and right-justified data formats, 64 BCKs, 48 BCKs, and 32 BCKs per LRCK period are supported
<smaeul> oh, nvm, that's not referring to TDM
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<suprothunderbolt> figure 52 on page 32 of the TI datasheet shows the timing diagram, which looks like the allwinner one apart from the channel numbering
<suprothunderbolt> which suggests just one side of the LRCLK is being read
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<smaeul> suprothunderbolt: and which side is master? note the difference between the two LRCKAD/DA lines
<suprothunderbolt> ADC is master
<suprothunderbolt> the slave mode in the TI doc looks similar to PCM B in the allwinner doc
<suprothunderbolt> I can't appear to run with polarity inverted from the lrck not sure why...
<suprothunderbolt> okay I can and it makes no difference, only 1-4 get signal out...
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<apritzel> mripard, wens: I have updates to the H616 support series, does it make sense to send it this week (just for review, they are targeting 5.14), or shall I wait after -rc1?
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<apritzel> wens: was that H616 TV box gold plated and used diamonds to disperse the LED light?
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<mripard> apritzel: if it's only for review, you can send it anytime
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<apritzel> mripard: Ok, thanks!
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<JoaoSchim> apritzel, MoeIcenowy: the board is booting now. I kinda neglected a termination resistor between CS/CS# and gave the LPDDR3 some reflow. Also i needed to change some voltages that were in the u-boot config. BPI-M3 uses a lot more of the DCDC/LDO from AXP.
<JoaoSchim> We're getting there.. Thanks. Guess, its time now for new device tree adventures.
<JoaoSchim> typo: should be CK/CK# of course.
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<MoeIcenowy> JoaoSchim: glad to here that
<MoeIcenowy> (although A83T is really old chip now
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<tllim> Regarding D1 SBC, PINE64 just pass handle Allwinner D1 SBC to Icenowy.
<tllim> Please noted that Allwinner only provide board for now and not selling the D1 chip yet. The D1 chip may start available sometime in Q3 2021.
<tllim> PINE64 D1 SBC, code name PineOne, will only start once D1 chip available, the Wifi/BLE module will use BL602 instead of XR829 that currently using Allwinner D1 board..
<tllim> PINE64 still have the Allwinner D1 boards but in very limited quantity.
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<montjoie> thanks for the information
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<tllim> ^^^ welcome
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<swiftgeek> It would appear that I have fried DRAM xD
<swiftgeek> I guess it fits 2GiB max right?
<swiftgeek> also, is A33 bootrom going to work without DRAM?
<apritzel> swiftgeek: yes, BootROM never touches DRAM, it's all SRAM at this point
<swiftgeek> yay
<apritzel> swiftgeek: initial SPL/boot0 output is also done without DRAM still
<swiftgeek> so I can test /something/ after removing DRAM chips with short on them :D
<apritzel> yes, you can run any code, but won't have much fun
<swiftgeek> oh wow, it even uses that package that makes it easy to solder :D
<swiftgeek> i hope 1GiB chips are going to be the same
<swiftgeek> yeah SDRAM support list mentions 1GiB chips as "sample tested"
<swiftgeek> i just wish i had a spare chip to put on for testing before ordering 2*1GiB :D
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<apritzel> are you sure the DRAM is really dead? There are many things that can go wrong software wise that would prevent DRAM from being initialised
<swiftgeek> at the very least, it's only DRAM that is sinking ridiculous amount of current
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<swiftgeek> apritzel: they are taking dozens of amps :D
<apritzel> well, that's good for a heater, but indeed a bad sign for DRAMs
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<apritzel> swiftgeek: so they desolder themselves them?
<swiftgeek> nah i didn't ramp it that much yet, i didn't want to burn off trace
<swiftgeek> but the short has kinda ridiculously low impedance/resistance xD
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