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| 05:10 | Bertl_oO | off to bed now ... have a good one everyone!
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| 11:27 | Bertl | morning folks!
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| 11:27 | BAndiT1983 | hi
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| 13:14 | anuejn | morning :)
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| 14:31 | EmilJ | hi there!
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| 14:33 | EmilJ | What's supposed to be present in the flash of a zynq running axiom-firmware?
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| 14:37 | vup2 | it doesn't care about the flash (if you mean no th sdcard)
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| 15:18 | Bertl | where 'no th' is short for 'not the' :)
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| 15:21 | BAndiT1983 | needs to be added to urban dictionary
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| 15:22 | BAndiT1983 | https://www.urbandictionary.com/define.php?term=no%20th
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| 15:22 | Bertl | yeah, well, maybe I'm wrong and it means something completely different ...
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| 15:23 | vup2 | hehe
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| 15:33 | EmilJ | Wait, the zynq is booting directly from SD card?
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| 15:33 | EmilJ | In that case, how the heck does it refuse to boot
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| 15:35 | BAndiT1983 | https://www.bastibl.net/zync-boot/#:~:text=When%20powering%20up%20the%20device,dip%20switches%20on%20the%20board.
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| 15:36 | BAndiT1983 | https://www.centennialsoftwaresolutions.com/post/zynq-7000-boot-process
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| 16:09 | vup2 | EmilJ: it depends on how the boot is configured, we have configured it such that it tries to boot from SD card first
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| 16:10 | vup2 | usually there are some jumpers that you can use to select the boot mode
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| 16:11 | vup2 | The biggest reason why it would not work when booting from SD-card using a axiom-firmware image would probably be the MIO / RAM configuration, as that is hardcoded in a register init sequence generated by vivado and then imported into u-boot
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| 16:11 | vup2 | this is on of the main reason there is a micro and a beta firmware image, they are incompatible because they need to be initialized differently
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| 16:12 | vup2 | the beta image does not boot on the micro and vice versa
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| 16:12 | EmilJ | Yeah, I do have the jumper in the SD position. That's interesting. You mean the RAM would be remapped on my board compared to for example zybo? I'll check the schematics
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| 16:16 | vup2 | well not only that, also the training / timings might be different
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| 16:16 | vup2 | or some clocking has to be different
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| 16:18 | vup2 | (you can find semi plain text versions of the init stuff here: https://files.niemo.de/zturn_lite.dump https://files.niemo.de/microzed_ps7_init.dump if you are interested what registers are set)
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| 16:20 | vup2 | in the ps7_ddrc_DRAM_param* registers for example you can see the RAM timings are hardcoded
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| 16:21 | EmilJ | I kinda thought the DDR gets retrained on boot
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| 16:22 | vup2 | maybe the fsbl can do that
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| 16:22 | vup2 | but i don't see any u-boot code doing that
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| 16:24 | vup2 | (fyi the zynq boots first from a internal bootrom, which in turn copies the BOOT.bin from the selected boot medium to the on-chip ram and basically then jumps into it, then the u-boot spl (packaged in the BOOT.bin) starts out executing from the on-chip ram, initializes the DDR and other stuff, copies the full u-boot to DDR and hands over to that)
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| 16:25 | vup2 | if you use the fsbl it replaces the u-boot spl (second program loader) in this flow
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| 16:25 | vup2 | so maybe the fsbl can to dynamic ddr configuration
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| 16:25 | vup2 | but iirc it did not look like it
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| 16:25 | vup2 | it basically uses the same file with register initialization as the u-boot spl
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| 16:31 | EmilJ | so then, I should figure out how to dump the DDR configuration data from the pynq image and transplant that as a patch into, hm, boot.bin?
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| 16:33 | vup2 | well that could maybe work
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| 16:33 | vup2 | but I think it would be easier to try and figure out how BOOT.bin is built for the pynq
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| 16:37 | vup2 | EmilJ: do you have a Pynq-Z1 or Pynq-Z2?
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| 16:37 | EmilJ | Z2
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| 16:38 | vup2 | I think everything need should be here https://github.com/Xilinx/PYNQ
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| 16:38 | vup2 | (or should be possible to generate from the files there)
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| 16:39 | EmilJ | I'm going through the repo right now
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| 16:43 | vup2 | right
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| 16:43 | vup2 | I think we want a older branch
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| 16:43 | EmilJ | Why?
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| 16:43 | vup2 | v2.2 seems nice, as it does not use peta linux yet
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| 16:43 | EmilJ | Ohhh!
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| 17:06 | vup2 | combining vivado 2019.2 with the SDK from 2018.2, what could go wrong...
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| 18:35 | vup2 | EmilJ: https://files.niemo.de/pynqz2_ps7_init_gpl.dump
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| 18:35 | vup2 | comparing that to the zturn dump certainly shows some differences
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| 18:35 | vup2 | (in the ddr controller configuration)
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| 18:43 | vup2 | EmilJ: lets see if this runs through: https://github.com/apertus-open-source-cinema/axiom-firmware/pull/181
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| 19:24 | vup2 | EmilJ: https://api.cirrus-ci.com/v1/artifact/task/5951953832247296/image_upload/build/axiom-pynqz2-pr-181-a45f2783.img.xz
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| 20:17 | EmilJ | oh wow thanks for the quick fixes - any idea why the CI test fails?
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| 21:02 | vup2 | well it fails because qemu spews nothing on the serial when trying to boot
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| 21:02 | vup2 | but that colud be due to the pynq using a different serial port then the others
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| 21:03 | vup2 | (although that should be automatically handled by qemu as it loads the same devicetree as the kernel...)
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| 21:45 | se6ast1an | off to bed, good night
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| 22:06 | EmilJ | Yeaahhhh, I get nothing on the "prog uart"
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| 22:06 | EmilJ | with the image you set up
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| 22:37 | vup2 | what is the prog uart?
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| 22:45 | BAndiT1983 | changed nick to: BAndiT1983|away
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| 22:54 | Bertl | The PYNQ-Z2 includes an FTDI FT2232HLUSB-UART bridge (attached to connector J8 PROG UART) that supports USB-JTAG, USB-UART. The PYNQ-Z2 can also be powered from the MicroUSB port.
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| 22:55 | vup2 | hmm is the /proc/cmdline on a working system?
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