#linux-sunxi on 2015-09-05 — 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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08:38 <camh> uboot has the function sunxi_gpio_set_drv that takes a val 0..3. According to the H3 datasheet, this is "level 0..3".

08:38 <camh> what does this mean? What is the level and what are the number 0..3?

09:13 <mripard> camh: the current, from 10 to 40 mA, by steps of 10mA

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15:32 <gzamboni> mripard, you were right, it was the bus, i got it working perfectly now thanks

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15:36 <gzamboni> i can try to boot up u-boot from this NOR SPI flash. At the BROM sequence i think it trys out NOR SPI after mmc and nand.

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16:39 <jelle> hmm does anyone have the board layout of an a33? As in where is the uart

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17:03 <vishnup> jelle: uart is muxed with mmc pins on most of the tablets

17:03 <vishnup> based on A33

17:05 <jelle> vishnup: ok mmc pins hmm

17:05 * jelle is new to this

17:05 <jelle> oh so that means near the sdcard slot

17:05 <vishnup> jelle: you can follow http://linux-sunxi.org/MicroSD_Breakout

17:06 <jelle> vishnup: well hmm I want to solder some cables on it

17:06 <vishnup> jelle: you can try finding RX and TX

17:07 <jelle> vishnup: I have a scope here

17:07 <jelle> and running the serial noise program

17:08 <vishnup> jelle: no need to run it, just try probing each pin on mmc and reboot for each pin

17:08 <vishnup> it's likely that you'll receive bootup message on RX line

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17:39 <jelle> vishnup: oh no luck yet

17:39 <vishnup> which a33 device yo've?

17:40 <vishnup> you have?

17:40 <jelle> vishnup: sec

17:40 <jelle> oh I even have pictures

17:40 <jelle> vishnup: https://goo.gl/photos/pAcQoXwZDdtiTBNW9

17:41 <jelle> It's a haehne 7" inch tablet.

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17:43 <vishnup> jelle: could you please follow http://linux-sunxi.org/New_Device_howto

17:43 <vishnup> In case people know about it they might be able to help

17:43 <jelle> will do

17:44 <vishnup> jelle: great, well, are you able to get the FEX file?

17:44 <jelle> vishnup: nope

17:44 <jelle> vishnup: I got connected to adb, was able to copy the boot partition and dump it but didn't find a fex file

17:47 <jelle> vishnup: haven't tried the USB OTG method yet

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17:50 <vishnup> jelle: could you please try https://github.com/vishnupatekar/sunxi-tools/commit/ef7f96f3e127f10b4d51cf40d43e1dcdc0b193cc

17:50 <jelle> oh ofcourse

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17:51 <vishnup> jelle: source is here https://github.com/vishnupatekar/sunxi-tools/commits/a33_dev

17:54 <jelle> vishnup: ok that gives me a bus error

17:55 <jelle> vishnup: as in http://dpaste.com/20DK6BG

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17:58 <vishnup> do you have android ROM image files ?

17:58 <jelle> vishnup: nope, not sure where to find those

17:59 <jelle> vishnup: I did find the zImage of the kernel

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18:00 <vishnup> jelle: edit partition you found in hex editor and try searching for "tpr13" as text search

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18:01 <jelle> vishnup: just a silly question, but it's supposed to be in the boot partition or not?

18:02 <vishnup> well, it depends on manufacturers they may alter location

18:02 <jelle> aha

18:02 <jelle> grep -r tpr13 *

18:02 <jelle> Binary file boot.img-zImage matches

18:03 <vishnup> you can dump partition file somewhere, I'll try

18:03 <jelle> vishnup: ok

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18:04 <jelle> vishnup: http://pkgbuild.com/~jelle/boot.img there it is, now going to grab something to eat.

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18:09 <vishnup> jelle: FEX file is not in the boot.img atleast

18:09 <vishnup> you can try fel mode

18:09 <jelle> vishnup: ah ok

18:09 <jelle> vishnup: with usb otg?

18:09 <jelle> I'll look up the wiki page

18:10 <vishnup> yes, you need to put device in fel mode

18:29 <jelle> vishnup: hmmm how would that work with USB OTG? Do I connect the cable to my laptop?

18:29 <vishnup> yes

18:30 <jelle> vishnup: hmm and then it becomes a serial port?

18:30 <vishnup> http://linux-sunxi.org/FEL

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20:50 <BorgCuba> I love lima :-)

21:20 <pietrushnic> Is it possible to run Chromium (especially WebGL) with hardware support on Cubietruck ?

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22:29 <camh> it looks like the H3 ethernet is not stmmac. I don't know why I thought it was.

22:30 <camh> that exlains why I haven't got it working.

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