ChanServ changed the topic of #linux-rockchip to: Rockchip development discussion | IRC log http://irclog.whitequark.org/linux-rockchip | Community GH https://github.com/linux-rockchip | Rockchip GH https://github.com/rockchip-linux | ML https://groups.google.com/group/linux-rockchip
<vagrantc> any idea why running dmidecode on a puma-rk3399 would consistantly cause a kernel panic?
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<Pix> haha, got that too on my rk3399 board
<Pix> it should not work but should not panic either :)
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<hanetzer> heh. working on u-boot for my board (rk3399-gru-kevin); got some stuff happening but stuck atm :P
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<maz> hanetzer: I'd be happy to help.
<maz> Pix: make sure you have STRICT_DEVMEM selected. It should be the default on arm64. my kevin doesn't crash, and dmidecode fails gracefully.
<Pix> ah!
<Pix> ty i'll check it out
<maz> Pix: I just tested with 5.0
<Pix> ah, on one board i'm stuck to 4.4 ( no dtb in mainline), and on the other i'm running my distro's kernel, a 4.14
<Pix> i'll check this option and open a bug to them
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<klemen> Hi everyone
<klemen> I have a RK3288 board
<klemen> what's the latest kernel I can use that'll work with it?
<klemen> It's a custom board
<klemen> similar to the EVB-RK3288 and ASUS Tinker Board
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<klemen> I'll be playing 4K video on the RK3288 so I need support for hardware decoding
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<klemen> does anyone know what is the latest kernel I can use for RK3288?
<klemen> with support for hardware video decoding?
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<vagrantc> hanetzer: heya
<vagrantc> hanetzer: so what magic knobs need to be tweaked for the veyron-speedy to test my video?
<hanetzer> vagrantc: honestly unsure. perhaps whatever compatible = "simple-panel"; is in the u-boot source code?
<vagrantc> hrm.
<hanetzer> vagrantc:perhaps I should look into bringing the rockchip uart-over-usb from linux to u-boot, would make debugging easier for you prolly :P
<vagrantc> indeed
<vagrantc> other thought would be to make a port that boots u-boot from coreboot...
<hanetzer> easy enough to boot u-boot from depthcharge; check the archlinuxarm uboot-veyron pkgbuild
<vagrantc> oh, nice
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<vagrantc> hanetzer: oh, that does look like some pretty simples patches.
<hanetzer> yep. they don't have one for speedy but its the same basic idea.
<vagrantc> there was a recent patchset for guix to add support; i'll see if i can add a u-boot-from-coreboot target and test it...
<vagrantc> maybe coreboot will set up video in a way that u-boot can ... reuse it...
<vagrantc> certainly easier to revert if it doesn't work
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<mmind00> hanetzer vagrantc: usb-uart should probably be similarly easy as http://git.denx.de/?p=u-boot.git;a=commitdiff;h=5b5ca4c0d467d06509aba2838e11ab6909439704
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<hanetzer> mmind00:oh noice
<hanetzer> take that commit and the one from the linux kernel's 3288 and we should be able to cook something up.
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<mmind00> hanetzer: yep, you just need the board-spl part ... the Kconfig option should be generic enough :-)
<hanetzer> yep. that and maybe the grf definitions
<mmind00> of course
<hanetzer> unless of course they are already there. I'll investigate
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<hanetzer> yeah, will apparently need some of the grf_rk3288.h definitions added.
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<hanetzer> vagrantc: I'm currently restoring coreboot/depthcharge on my veyrons (no longer in active use) so I can get cbmem logs as well and see what the deal with the video init is :)
<hanetzer> vagrantc: question: do you have the blue-white variant of the veyron-speedy?
<vagrantc> hanetzer: red/gold, maybe?
<vagrantc> hanetzer: thanks for diving into the issue, too! :)