<jernej>
junari: thanks! this contains symbols which is great and it will help to improve understanding of DRAM driver
<jernej>
apritzel ^
<jernej>
it seems I was right regarding bit delay compensation and ODT config functions
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<peterm6881>
hi gamiee I plan to install everything to eMMC, I'm just trying to get a feel for the simplest way to multiple devices remotely
<peterm6881>
to update multiple devices remotely
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<apritzel>
peterm6881: (assuming with "firmware" you mean U-Boot and the DTB): you can just "dd" a firmware image file to the raw eMMC block device from Linux, then reboot
<apritzel>
that has of course the danger of bricking the device, if the image was corrupt or something goes wrong during the write
<apritzel>
for eMMC boot partitions you typically have two of them, so can switch, but there would need to be something that does that switch
<apritzel>
(I mean triggers the switch)
<apritzel>
those are general problems, of course, not sunxi or V3 specific
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<bananicorn>
Hello! I created an interactive script to easily create an Alpine Linux bootable uSD card for the Olimex A20-OLinuXino-Lime2
<bananicorn>
Thought some people here might be interested
<mps>
bananicorn: is the separate u-boot needed for A20-OlinuxIno
<bananicorn>
mps: Very interesting, thanks for sharing!
<bananicorn>
I had not found it on my own
<bananicorn>
The custom U-Boot is because of ethernet related issues, the different revisions of the A20 Lime2 use different chips
<bananicorn>
And they need some different fine tuning, namely CONFIG_GMAC_TX_DELAY
<mps>
understand, they are specific as I read earlier
<bananicorn>
So I had some issues in the past without making custom changes
<bananicorn>
And even though I wrote a full article on how to do it yourself, it is daunting for a beginner to build u-boot, do the partitioning and flashing etc
<mps>
I debuged u-boot for teres-i and posted fix upstream about two releases ago
<mps>
I have only teres-i and two A64-OlinuxIno boards so can test only on them
<bananicorn>
I see :)
<bananicorn>
You are using a sunxi specific kernel? I was not aware alpine had one, is it necessary for the teres/A64 boards?
<bananicorn>
A20 got mainline support, so I am not familiar with these as I never tried it
<mps>
bananicorn: yes, I started to build kernels based on SoCs instead 'one-for-all'
<mps>
I maintain linux-edge kernel flavor on alpine, and I test often on A20 Bananapi boards
<bananicorn>
I see, my knowledge is quite lacking on kernel level things (though I am trying to learn)
<bananicorn>
So it is not something I have touched much
<bananicorn>
Or at least had much success with :P
<bananicorn>
A20 having mainline support is my saving grace
<mps>
well, I'm using lamobo r1 (A20 SoC) as home server/router for years with mainline kernel
<bananicorn>
It's a very versatile chip, also got somebody else addicted to A20 OLinuXinos for environment monitoring projects and server use
<bananicorn>
I've also used mine as a home server
<mps>
I tried A64-OLinuXino from olimex but I'm not satisfied with them
<bananicorn>
What did you dislike?
<mps>
boards are not stable, boot sometimes fail, some drivers are not stable
<bananicorn>
Have you tried other A64 boards that did better?
<mps>
olimex only supports debian and don't want to talk about problems with other distros
<bananicorn>
Yeah that is a negative point
<mps>
yes, I bought their teres-i notebook to play with A64, it is better and more stable than SBC I've bought
<anarsoul>
mps: I haven't had any issues with pine64-lts and pinebook :)
<mps>
anarsoul: I trust you, but I don't have no pines
<bananicorn>
I got to go now, if anyone tries my script please let me know how it goes, I am thankful for any feedback :)
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<bananicorn>
also for general feedback on my probably terrible shell skills
<mps>
oh yes, my shell scripting is also terrible, but it works somehow :)
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<apritzel>
so speaking of Olimex: why are there two different build targets and DTs for eMMC vs. no eMMC?
<mps>
apritzel: I asked this somewhere long ago, and didn't get answer
<apritzel>
the only reason I see is if people would connect something else to the PortC pins, but I guess they are not routed to connectors?
<apritzel>
I would be curious to see what happens when someone boots a eMMC-less board with an eMMC config (I guess nothing, but curious to see the kind of error messages)
<mps>
I only know that in some of these cases reading from mmc is error prone, but why have no idea
<mps>
forgot exact combo
<apritzel>
if someone looks for a fun U-Boot project: get rid of board/sunxi/gmac.c, and configure this like mainline Linux
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