IRC log for #arm-netbook on 20120609

00:06.17*** join/#arm-netbook ZaEarl (~malmrose@173-11-125-162-SFBA.hfc.comcastbusiness.net)
00:09.52Turlhno: 30K? o.O
00:10.47Turlhno: A10 can't output >1080p as far as I understood though
00:11.40Turlhno: it might be able to decode 2160p, but I guess it's downscaled
00:11.51ManoftheSeaOh?  Did the 2160p get defined as 1080 + 1080?
00:11.56Turlor maybe it's a marketing name for 2x 1080p decoding streams
00:12.29mnemocI believe his comment was more on the line. "do you have a >1080p tv to support your claim that 4k is not supported?"
00:13.13Turl2160p is not 4K anyway
00:14.31mnemocsorry. I'm not very into HD.... I only use the TV to watch a DVD once per month and that's 720p iirc
00:15.04mnemocI had the idea that 4k was a way of telling that by doubling the weight you are 4x the actual surface
00:15.35TurlDVDs are not 720p :P
00:15.46Turl4K means ~4000 on height
00:15.51mnemoc:o
00:16.03Turllike two full HD x two full HD
00:16.05mnemocand what's the resolution of DVDs?
00:16.37Turl700ish x 500ish
00:16.42mnemoc:)
00:16.47Turldepending if it's PAL, NTSC, aspect ratio & w/e
00:17.17mnemoc:)
00:17.42ManoftheSea4k2k, right?
00:17.54ManoftheSea4000 x 2000 pixels?
00:17.55Turlmy TV can do 1080p, but I lack the HDMI cable ~.~
00:18.01ManoftheSeawhich is insane, btw.
00:18.24TurlManoftheSea: 4096 × 3112 for full aperture 4K
00:18.37Turl4096 × 1714 for a digital cinema 4K
00:18.55Turlrough idea https://upload.wikimedia.org/wikipedia/commons/thumb/c/c6/Digital_video_resolutions_%28VCD_to_4K%29.svg/800px-Digital_video_resolutions_%28VCD_to_4K%29.svg.png
00:19.04ManoftheSeaoh wow.
00:19.09Turlmnemoc: compare the 'dvd' piece to the 4K :P
00:19.28mnemocI think I have 4-5 hdmi cables and one "full hd" tv.... but my daughter tends to perfer to connect the VGA from the computer to the tv than the hdmi from the tablet.... I think it's because youtube restricts what videos can be playd there
00:19.53Turlmnemoc: I connect the vga + 3.5mm too
00:19.57ManoftheSeawhat kind of connector do you use?
00:20.04Turlmnemoc: because I'm cheap and my china HDMI hasn't arrived yet :P
00:20.10ManoftheSeaI mean, the signal on that must be running remarkably fast.
00:21.12TurlManoftheSea: HDMI can handle it
00:21.28ManoftheSeawow.
00:21.37ManoftheSeacables are amazing these days.
00:21.44Turlmust be HDMI 1.4 devices
00:22.00Turland a decent cable I'm guessing, chinese ones won't do the trick :P
00:22.18TurlManoftheSea: http://www.hdmi.org/manufacturer/hdmi_1_4/4K.aspx
00:22.29mnemocgoing to sleep, good night
00:22.51Turlgood night mnemoc
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03:32.58steevhm so far the only issue i can really complain about is that it takes forever to charge
03:39.43Turlhaha same here
03:43.03CIA-126rhombus-tech:  master * r4c1c475d306f /allwinner_a10/orders/.mdwn:
03:49.41CIA-126rhombus-tech: lkcl master * r028a569989cd /allwinner_a10/orders/ (.mdwn revovich.mdwn): order processing cleanup
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08:24.49CIA-126rhombus-tech: hno master * r2b5ffc593fe3 /allwinner_a10/source_code.mdwn:
08:25.05CIA-126rhombus-tech: hno master * r3998e93fd090 /allwinner_a10/A10_register_guide.mdwn:
08:31.58rz2klol https://twitter.com/whitequark/status/210151755110039552
08:32.14rz2kwhy a10 devkit costs more than galaxy s2 devkit?
08:50.29CIA-126rhombus-tech: hno master * r5aa77867308c /allwinner_a10/A10_register_guide.mdwn:
08:51.09CIA-126rhombus-tech: hno master * rf97883263699 /allwinner_a10/A10_register_guide.mdwn:
08:52.32CIA-126rhombus-tech: hno master * ree495cf78fbb /allwinner_a10/A10_register_guide.mdwn:
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09:46.09CIA-126rhombus-tech: hno master * r65c7e9e1c4e8 /templates/A10_registers.mdwn:
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09:47.13CIA-126rhombus-tech: hno master * r70c6a244084a /allwinner_a10/A10_register_guide.mdwn:
09:48.16CIA-126rhombus-tech: hno master * ra44b5e9b1c8d /allwinner_a10/A10_register_guide.mdwn:
09:48.37CIA-126rhombus-tech: hno master * r849e493bf879 /templates/A10_registers.mdwn:
09:49.21CIA-126rhombus-tech: hno master * r74ebe4096a67 /allwinner_a10/A10_register_guide.mdwn:
10:04.28CIA-126rhombus-tech: hno master * r3d46ef2ebef4 /allwinner_a10/A10_register_guide/A10_CCM.mdwn:
10:04.33steevhttp://crna.cc/magenta.html
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10:39.11mnemocsteev: nice
10:41.17mnemocrz2k: some devkits are just products, some devkits are marketing tools, and some devkits are the way to access support channels
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10:47.47rz2kthat one is just too similar to sgs2 :)
10:50.58mnemocrz2k: sure, but production quantities are sigthly different
10:53.08mnemocunless they do like TI who puts marketing money to subsidize the boards it's impossible for a devkit to cost the same as a CE product
10:56.22mnemocthis is why the mele is so amazingly great
10:56.34rz2kif all manufacturers were like TI... :)
10:57.04mnemocTI is like a drugs dealer with it's animal boards
10:57.29rz2kthey sent me TI LaunchPad for 4.5 euro all the way from Texas to Moscow
10:57.45mnemocnice :)
10:59.04mnemocit's very cool for hobiests, but if you try to make a product they strike
11:00.30mnemocuh, ugly typos...
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12:34.43Mazondoes anyone know about the vivante gpu on the imx board - how is their linux driver track record ?
12:36.01mnemocMazon: poke steev
12:37.54Mazonpokes steev :)
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15:02.17CIA-126rhombus-tech: Federico master * r046da08a149d /allwinner_a10/orders/F2.mdwn:
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15:44.45t0dbld|workHexxeh: heard congratulations is in order !!
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16:52.12CIA-126rhombus-tech: Dan master * r73680be2b850 /allwinner_a10/hacking_the_mele_a1000/Building_Debian_From_Source_Code_for_Mele.mdwn: Some fixes based on my experience using the instructions on a debian squeeze system.
17:10.27CIA-126rhombus-tech: Dan master * rf1c4c4253542 /allwinner_a10/hacking_the_mele_a1000/Building_Debian_From_Source_Code_for_Mele.mdwn: I used a 2GB SD card and it was only 20% full.
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19:12.53steevMazon: mnemoc: honestly, i don't know what their track record is.  if you're asking about userspace being open source, then no, not going to happen.  never will in SoC land.  as for working... well, i know it *works*, but i'm working on low level stuff presently so, can't really say all that much about it
19:21.56Mazonsteev, oki, thanks
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20:03.56*** join/#arm-netbook Xlab (~Adium@83.149.8.197)
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20:18.15XlabI need somebody who mastered with uart throughout microsd sniffing :)
20:18.32XlabWhich sd pins are for RX/TX?
20:19.18*** join/#arm-netbook frantisheq (~anonymous@kapusany.3log.sk)
20:19.37Xlabin typical a10 tablet like novo7/ly-f1?
20:26.43frantisheqis it possible to boot some minimal root fs, connect to wifi and then use nfs share as debian root?
20:29.40frantisheqi have A10 tablet only so i can't load nfs rootfs over ethernet
20:31.20hnofrantisheq, yes, but not sure how to do it with Debian It's done with an initramdisk that configures network and mounts the root.
20:32.18hnofor wired Ethernet the kernel has all logic needed for booting with an nfs root, but wifi needs a little help from userspace to get configured.
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20:36.29hnoXlab, it's the same pins in all A10 laptops. But you need to customize script.bin to switch them from SD to UART.
20:36.42frantisheqthanks. first i'll try to boot pc like this and then the tablet
20:36.57hnofrantisheq, good idea.
20:36.57Xlab>it's the same pins in all A10 laptops.
20:37.11Xlabi\m using a microsd sniffer
20:37.24hnomeant devices, not laptops.
20:38.54Xlabso, vanilla android doesn't output anything?
20:38.54Xlabawww
20:38.54Xlab>to switch them from SD to UART.
20:38.54Xlabgot it, thanks
20:39.26hnoXlab, http://elinux.org/Hack_A10_devices
20:40.02*** join/#arm-netbook bkero (~Ben@osuosl/staff/bkero)
20:40.26hnoDoes not mention which pins PF2 & PF4 is, but it's easy to cross-reference to SD pinout by looking at the mmc0_para section.
20:40.53bkeroHey guys.  I'm hacking on the mk802 linux stick.  I've followed the Allwinner A10 guide to creating a kernel and u-boot, and then putting those correctly on the SD card, but I'm not getting any HDMI output by default.  I wonder if I'll need to find a UART on the motherboard.
20:41.33hnobkero, to get HDMI out you need to get very very far in the boot process. THere is a million things that can go wrogn before.
20:41.55hnoso UART is hightly recommended.
20:42.37bkerohno: Nobody's found a UART on the motherboard yet.  I'm wondering if I should either go sniff one out, or if I could use the android kernel it came with, and then try to get that to work, just with using a different userland
20:43.10bkerohno: I was able to dd if=/dev/block/nanda | gzip -c > /mnt/sdcard/nanda.gz, then copy it off, and mount it on my laptop to get a working boot partition.
20:43.11hnoWe think UART is on the leftmost two pads in the block of 4 pads on the board edge just next to the CPU.
20:43.49bkeroI need patch wire and flux :(
20:44.01rz2kXlab: vanilla android on ainol outputs to onboard rx\tx on backside of pcb.
20:44.02bkerohno: 2 pad or 3?
20:44.17hnofor probing you just need wires and a 3.3V UART.
20:44.29bkeroI've got my bus pirate, that'll be good enough
20:44.30hnoyou also need to find GND somewhere.
20:44.39bkeroI can steal GND from the shielding on USB
20:44.43hnoyes
20:45.11bkeroare you also working with an mk802 stick?
20:46.07hnoConnect GND somewhere. Then the RX wire of your UART (the input wire where the UART receives data, not the wire that should be connected to board RX) and look for the MK802 TX pad.
20:46.26hnoit should be quite chattery when you boot.
20:46.28Xlab>rx\tx on backside of pcb.
20:46.28XlabNovo7 Elf device becomes quite unusable if i reach these pins
20:46.36bkerohno: has anybody done it before?
20:47.13rz2kXlab: use small AWG wires
20:47.25hnoProbed for UARTs yes. But no one have done it on the MK802 yet as far as I know. Most (me included) are using the mele box.
20:49.13bkeroI see
20:50.22hnobkero, this is my setup B)   (mele powered via USB UART)
20:50.24hnohttp://www.henriknordstrom.net/code/A10/uart-module.jpg
20:52.21bkerohno: very nice
20:52.37bkeroI've been taking some photos of this thing.  i need to go get some pictures of the inside though.
20:52.45bkeroand get lunch and flux + patch wire
20:53.10hnoProbably should put some screws back..  board is all loose and in theory could short to the housing if moved..
20:53.24hnodon't eat the flux..
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20:53.41bkerowoot
20:53.45bkeroI extracted a rootfs from this
20:54.01bkeroIn theory some other Allwinner A10s should be able to run this version of ICS
20:54.09hnoyes
20:54.37bkeroInterested in trying that?
20:55.23hnonot really. it's Android.
20:55.29bkeroHeh.  Some people like android.
20:55.41bkeroI'm more interested in getting vanilla linux to run on this bad boy.
20:55.54hnoplus that it quite likely have some stuff that is under prorpietary copyright so copying it like that would be a copyright violation.
20:56.49hnohow much RAM does it have?
20:57.07bkeroClaimed 1024
20:57.17bkerobusybox on android reports 814 though
20:57.25hnoThen it's 1024.
20:57.45bkeroSure, but I'm thinking it shares space for the fb
20:57.47specing1GB ram? :O
20:58.12hnoframebuffer, video acceleration, GPU, 2D acceleration, and a bit more..
20:58.12bkero2gb flash too...pretty sure
20:58.27hnobig ram, small flash.
20:58.30bkero/dev/block/nandi reports size of 2252M
20:58.57hnothen it's more than 2GB flash.
20:59.05bkeroI have a feeling that a lot of these nand devices actually overlap in physical space though
20:59.13hnono
20:59.36bkerohttps://docs.google.com/spreadsheet/ccc?key=0Ao2HeLwslOwfdG9CbEVPb2o3aGpBT3pHOUwtcVYyUlE
21:00.33specingbkero: reports similar here
21:00.47bkeroMust be 4096MB then
21:00.49specingThough I found a 32 Gbit chip on there...
21:00.51bkeroall that crap adds up to 4080
21:01.52bkeroshaves the living yak by showering and making a trip to radio shack for some flux and wire.
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21:05.50hnospecing, 32 Gbit is 4Gbyte
21:06.29specingIndeed!
21:06.36hnobkero, some MB is for the initial bootloader outside the partitioned space.
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21:20.25bkerohno: like pre-uboot?
21:22.28bkerospecing: hrm, interesting.  It's running a 3.0.8 kernel
21:22.40hnobkero, yes. There is a lot before uboot in the android setup.  In the Linux world we use none of that..
21:22.59hnos/x w/x free w/
21:24.38hnobut the stuff outside nanda is only ~24KB. But I think they reserve a fair bit more.
21:24.57bkerohno: I'm wondering if it's worth grabbing with jtag or something
21:26.09hnobkero, if you want to help with uboot or low-level kernel stuff then JTAG surely helps. But you need UART first of all. And not obvious pads identified as JTAG candidates on the MK802.
21:27.07hnohave surived so far without JTAG.
21:28.12hnobut suspect I may need JTAG to figure out what's wrong with latest versions of uboot.
21:30.00hnobkero, have you used JTAG on ARM Cortex A8?
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21:50.38hnofashinatng, the Mele do not have any form of battery or even any larger capacitor from what I can tell, yet the RTC keeps running when power is removed.
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21:56.35XlabRX data reading works fine, but I'm unable to send anything with TX :/
21:56.50bkerohno: yea on my beagle
21:57.20XlabBy datasheet, SDC0_CLK is TX and SDC0_D3 (probably CD) is RX
21:59.30XlabTX sends me /dev/ttyS0, but RX don't read anything :(
22:01.48hnoXlab, you got the right pin?
22:02.16Xlab?
22:02.31XlabData3 pin is CD pin on my sniffer
22:03.10XlabBut i tried them all, of course
22:03.26zenitraMmmhm, yours is not the first case of input not working on a tablet i've read here
22:05.04hnocould be as simple as https://github.com/hno/uboot-allwinner/commit/bf233ed95fdf1fda9df75de902d101463fd5cd56
22:05.40zenitraMDonkeyHotei had the same problem, and it wasn't u-boot fault as input didn't work on Android either
22:05.51zenitraMdon't know if he fixed it
22:06.54hnoIf u-boot leaves PB23 as UART RX then things likely break if SD is also configured for UART RX.
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22:09.49hnoif that's the cause then it should be fixable by adding psuedo-tty pins setting PB22 & PB23 as GPIO input, or by uploading a modified u-boot.
22:14.25hnoXlab, try adding the following to uart_para0
22:14.49hnouart_tx2 = PB22<0>
22:14.55hnouart_rx2 = PB23<0>
22:26.44hnopin function names do not matter. What matters is the PB23<0> that sets PB23 pin as GPIO INPUT.
22:36.49Xlabuart_debug_tx2 = port:PB22<0>
22:36.49Xlabuart_debug_rx2 = port:PB23<0>
22:36.56XlabShould i add this too?
22:38.26XlabHmmm
22:38.54Xlabfex2bin utility just truncates uart_tx2 & uart_rx2 values
22:39.22Xlabfex2bin and then bin2fex, and they're gone
22:51.14zenitraMit doesn't truncate them, it's just that leaving the values to 0 produces the same output that not putting any value there
22:58.11Xlabnothing has changed :(
23:02.03Xlabafk
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23:53.12bkerohno: the mk802 board has 4 pads next to the CPU, not two. :/  and my multimeter is acting busted, so I'm going to have to try with the bus pirate.
23:56.49bkeroHrm, 3.3v coming from two pins, 2.19 coming from one pin

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