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<machinehum>
I got my D1
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<swiftgeek>
noticed that some USB packets still work when A13 freezes (like whatever is needed to get descriptors), leading me to suspect that PLLs and rails should be fine, just CPU is not running normal linux loops anymore
<swiftgeek>
since panic doesn't appear on UART console, and console doesn't respond in any way, is there a way to trigger kdb shell from GPIO? or even hook an led to interrupt handler (with some mask maybe)
<swiftgeek>
if linux was running, I would expect it to panic eventually
<swiftgeek>
as usual, I'm trying to avoid JTAG because SD is my boot device, and I can't replicate it on demand
<swiftgeek>
*can't replicate issue on demand
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<Jookia>
machinehum: yay
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<kienvo>
Is there any example DT for H616's internal EPHY? and which options in kernel should turn on with it? I'm using mainline 6.4 and minimyth2 patches. I tried to use emac1 and mdio1 from tanix-tx6s dts but end up with "EMAC reset timeout".
<DarkNeutrino>
And you ofc need to enable the driver. in menuconfig when you press ? it will allow you to seach for it and tell you exactly what it depends on
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<kienvo>
CONFIG_MFD_AC200 and CONFIG_AC200_PHY, right ?
<DarkNeutrino>
Correct
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<DarkNeutrino>
I have not tried to enable it yet myself but when you figure it out kienvo please let me know :)
<kienvo>
I'm working on it
<apritzel>
in theory it's not too complicated, but in practice there are many small things that need to work
<apritzel>
like the PWM itself, for the PWM clock (in bypass mode)
<apritzel>
jernej once had a nasty hack for U-Boot that would enable most of it there, with a bunch of writel's
<apritzel>
but that doesn't apply easily anymore
<apritzel>
kienvo: and be warned: proper mainline support it's quite some way out, and whatever you hack up now will most likely not be compatible with future mainline kernels
<jernej>
don't you worry, I and warpme (IIRC) keep it somewhat updated
<jernej>
well, thing is that it works in U-Boot, but then you need additional hack for Linux
<jernej>
someone needs to write pwm driver for linux and it will be much easier
<apritzel>
jernej: yeah, and the PWM is somewhat nasty, and we need it just to enable bypass :-(
<apritzel>
and I have to bite the bullet and check if we can piggy back on the PWM driver for the R329/D1 on the list
<DarkNeutrino>
jernej, The enhanced PWM or whatever it is called ? There is a patch but its just copy paste of the downstream driver and its hella nasty.
<jernej>
anyway, I didn't put any effort in Linux driver and I don't plan to
<DarkNeutrino>
:)
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<warpme>
jernej apritzel : i need some of your experience :-) I'm hacking with mainline Linux support for new SoC (rk3528). Kernel boots - but i'm getting early user-space issue like this: https://gist.github.com/warpme/7e4aeaa709ae627f278980dabd619544 Do you have any idea how to move forward with this?
<apritzel>
warpme: well, looks like your init is not good, is that systemd?
<apritzel>
then you check the source what return code 0x200 means
<apritzel>
it could also be some random memory corruption, for instance broken DRAM setup, though that typically fires earlier
<apritzel>
or the SD driver reads some garbage, and tries to execute that, thought it apparently parse some of the filesystem correctly
<warpme>
no. plain old shell. Interesting is that those binaries are working well on other socs (i'm using common build system - only bootloader + DT are specific). Let me flash sd for other rk device and verify....
<apritzel>
or maybe it's the wrong init binary? x86 or arm32?
<warpme>
give me sec pls
<apritzel>
happened to me once when I fed my arm64 initrd to an arm32 kernel
<apritzel>
you could quickly hand this over to QEMU to check that
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<warpme>
the same rootfs flashed to sd card with rk3566 uboot boots ok. Do you know where i dmesg i can see: is cpu in 32 or 64 bit mode?
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<apritzel>
warpme: just check the pointer length in various lines, that's 64 bit
<DarkNeutrino>
warpme, You also have quite an old u-boot. Do you know what it sets up and what it may expect to setup from kernel ?
<DarkNeutrino>
Also it seems like that the system hates that you dont have GPT table at the end
<warpme>
DarkNeutrino : oh - indeed uboot is old. issue is that rk3528 is at quite early stages (no TRM; no any SBC with this SoC; rk bsp / radxa uboot seems to be only available bootloaders for rk3528 (afaik)).
<DarkNeutrino>
Fair enough
<DarkNeutrino>
Also it warns you that it cannot open initial console. Thats really not good
<warpme>
but i'm assuming: if kernel boots ok (optimistic assumption by dmesg output) - i assume bootloader should be good enough to provide v.basic booting kernel....
<warpme>
indeed: lack of initial console is most suspicious for me atm
<DarkNeutrino>
That will most surely cause halt in boot