#linux-sunxi on 2015-12-30 — irc logs at freenode.irclog.whitequark.org

2015-02-18 19:37 Turl 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

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06:13 <MoeIcenowy_> hello

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06:13 <MoeIcenowy_> do you know any gnu/linux programs recommended to run on 800x480 7inch tablets?

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11:53 <Dan68> jelle: which orange pi variant are you playing with? I've got 5 of the Orange Pi PCs here

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11:54 <Dan68> also, are you running the old 3.4 kernel from allwiner, or one of the new 4.x series kernels. Which distro ya using too?

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12:00 <jelle> Dan68: uhh not running any distro atm

12:07 <Dan68> jelle: ah, how'd you go about testing dram speed? Been meaning to test the DRAM speed (and failure points) and the OpenRISC core to generate some data for the wiki/uboot config

12:09 <jelle> I just used the FEL mode

12:09 <jelle> as described on github

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12:11 <Dan68> ah

12:11 <jelle> tonight I want to get an actual image working :p

12:11 <jelle> haven't checked u-boot support though

12:12 <Dan68> ah

12:12 <Dan68> which image are you planning on using?

12:12 <jelle> Dan68: the archlinuxarm image if possible and then just put my own kernel on it from hans branch

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12:13 <alexxy> hi all!

12:13 <alexxy> is there some list of patches for mainline linux kernel to make nand flash work on cubietruck?

12:13 <Dan68> cool

12:14 <Dan68> jelle: any clue if ethernet or the audio jack work in hans branch yet?

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12:19 <jelle> I think both don't work. But I'll see tonight hopefully :p

12:19 <Dan68> yep yep

12:19 <Dan68> any clue when ethernet will work?

12:20 <jelle> nope

12:20 <Dan68> mk

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13:53 <wens> Dan68: someone is working on ethernet for h3

13:53 <jelle> nice

13:54 <jelle> would love to help out, but my arm hacking knowledge is below beginner (as in I only know dts files / u-boot a bit)

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14:08 <Dan68> wens: cool, any clue on an eta and how to help out with it?

14:11 <Dan68> also, thoughts on putting a heatsink on the H3? Been considering it since the case seems a tad warmer than I'd like, but not sure if putting a tiny aluminum heatsink on would help

14:12 <jelle> with which image?

14:12 <jelle> since iirc the standard image was clocked to high?

14:13 <Dan68> standard debian server running kernel 3.4 from allwinner

14:13 <Dan68> and yea, it seems to throttle and lock up occasionally if I start compiling or installing stuff

14:14 <Dan68> guess I just answered my own question

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14:24 <tkaiser> Dan68: It's just a matter of settings (dvfs/thermal). Everything explained here: https://groups.google.com/forum/#!topic/linux-sunxi/20Ir4It3GsA

14:26 <tkaiser> And even a cheap heatsink makes a difference: I got 10¡C with/without when using the worst settings: http://linux-sunxi.org/User:Tkaiser#Xunlong_settings

14:28 <Dan68> not bad. I'm going to buy some heatsinks

14:28 <tkaiser> More important: fix the fex and you won't need one ;)

14:29 <tkaiser> ssvb explained everything in detail in the first link.

14:30 <Dan68> yeah, I'm reading through ut

14:30 <Dan68> *it

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14:35 <tkaiser> Regarding H3/Ethernet, IIRC LABBE Corentin is working on it but I can't find something online: https://github.com/montjoie

14:36 <tkaiser> IIRC he said he writes the driver from scratch and last time he joined here he said interrupts for received frames would be missing.

14:37 <KotCzarny> that is bad, isnt it?

14:37 <Dan68> huh, how does that affect performance/operation?

14:37 <Dan68> like, no inbound packets? Or just slower

14:39 <KotCzarny> offtopic, i've changed audio cable to a shielded one and audio is not noisy because of sata anymore

14:40 <KotCzarny> but really it's my pc that is also connected to the same stereo system that is introducing the noise

14:41 <KotCzarny> so either my device picks it up, or its just that noisy (though with previous x86 router it wasnt)

14:42 <tkaiser> Dan68: I would believe no IRQ no processing. And I thought to myself whether it's possible to reuse the driver for A31 instead.

14:42 <tkaiser> But in this area I'm pretty much clueless and got lost when trying to compare the A31's 3.3 and H3's 3.4 driver/net/sunxi stuff

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14:48 <patap> tkaiser: Afaik a31 gmac is almost same hardware as on a20 (uses same driver on mainline). H3 is something new

14:50 <wens> h3 is something new

14:52 <tkaiser> ok, then I've been fooled by the 'SMP hack' for the H3 from a few days ago resulting in working SMP: http://pastebin.com/Vj9JYPTn

14:52 <tkaiser> And Èenable-method = "allwinner,sun6i-a31";Ç

14:53 <tkaiser> https://groups.google.com/d/msg/linux-sunxi/XNpJYmSeN1o/qCM4rnjLBAAJ

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14:57 <patap> wens: i was searching for similar devices within mainline kernel. Couldn't find anything.

14:58 <patap> I'm having hard times to believe that they designed something by themselfs

14:59 <tkaiser> At least H3 and A83T/H8/R58 look similar: https://github.com/ssvb/linux-sunxi/tree/589da2af30717333bf9a287dcb467a07e18c1472/drivers/net/ethernet/sunxi/eth vs. https://github.com/BPI-SINOVOIP/BPI-M3-bsp/tree/master/linux-sunxi/drivers/net/ethernet/sunxi/eth

15:01 <wens> if you look at the Kconfig/Makefule

15:01 <tkaiser> They're different, yes

15:03 <wens> you'd see there are 2 code paths

15:04 <wens> 1 for the old dwmac type, 1 for the new hardware

15:04 <wens> sorry, shitty wifi connection here

15:04 <tkaiser> ok, thx

15:14 <tkaiser> Hmm... but A83T and H3 share the new implementation?

15:24 <Dan68> tkaiser: hey, have you tried running at 1536MHz/1400mV or around that?

15:35 <wens> tkaiser: haven't checked

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15:39 <tkaiser> Dan68: With the H3? In the early beginnings yes. Worked using a fan since otherwise throttling jumped in. And since cpufreq-ljt-stress-test showed errors I simply accepted that this is an 1.2 GHz SoC

15:40 <tkaiser> http://linux-sunxi.org/Hardware_Reliability_Tests#Reliability_of_cpufreq_voltage.2Ffrequency_settings

15:41 <tkaiser> IMO the H3 can really shine when using headless and undervolted/underclocked ;)

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16:21 <KotCzarny> </j #maemo

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17:45 <lebgeek> test test

17:45 <lebgeek> hi all

17:47 <lebgeek> anyone fronm beirut?

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19:30 <jelle> welp, that was easy orange pi pc now booted with 4.4rc5

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