<wens>
if someone could upload this to dl.linux-sunxi.org
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<maksimlin>
wens: thats very useful! thanks heaps for posting those for the hummingbird
<maksimlin>
and for the fex patch
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<maksimlin>
wens: the sdk is the usual huge aosp - is it ok I d/l direct from your url or should I wait til it gets uploaded to dl.linux-sunxi.org ?
<wens>
you can download directly
<wens>
I just want it put in linux-sunxi so everyone can find it
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<maksimlin>
great thx, getting it now
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<gzamboni>
Turl not yet, i was playing around with the dma code, but it was too complicate for me, i have to start with something smaller. AFAIK the most important stuff that uses dma are the audio and spi
<gzamboni>
we can after move it to the proper directory
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<Turl>
gzamboni: do you have/know some spi devices that would benefit from DMA?
<gzamboni>
isnt it made for the transfer buffers engine only ?
<gzamboni>
i have an IC that i can use high speed spi transfers if you wanna test performance
<gzamboni>
i mean, isnt it used for the master's buffer only (the Allwinner ic) ?
<Turl>
gzamboni: it's used for both sending and receiving (it's full duplex afaik)
<gzamboni>
yes, but what you receive will be automaticly got from at the direct access memory, so you just need a high speed spi Interated circuit to test it... if you want i can do so with and without the dma to see the differences
<gzamboni>
it may not have big performances differences but it will surely bypass some processing resources as it access the info directly from memory
<Turl>
gzamboni: that would be great :)
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<gzamboni>
so in a continuous transfer with dma it will surely use less cpu
<Turl>
gzamboni: just to be clear, when you are not using dma, the cpu needs to push data through a fifo register, and read data from another fifo register
<gzamboni>
afaik yes
<Turl>
when you are using dma, the engine does it for you
<gzamboni>
you have to ask mripard hes the expert :)
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<Turl>
gzamboni: have you used mainline kernels before on sunxi?
<gzamboni>
yes, but i dont have anything set up here
<gzamboni>
i used the dma code from mripard in mainline without dma and the one from 3.4 with dma and the data transfer speed was better in the mainline :)
<Turl>
heh
<Turl>
that's possible
<Turl>
I bet CPU usage was higher though
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<gzamboni>
i didnt check, but surely it was
<gzamboni>
i wasnt using the board for anything else, otherwise it would share the cpu resource and maybe slowdown the spi transfer
<gzamboni>
nah, it woudnt slow down as you have to set the speed before the transfer, i think spi transfers has higher priorities
<Turl>
gzamboni: anyway, if you want to test you'll find the latest dma code on the sunxi-dma branch on my tree
<Turl>
you should be able to do bigger than fifo transfers now
<gzamboni>
nice, i will see if i can get back the dev board i was working at that time
<gzamboni>
thanks for working on this!
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<gzamboni>
its amazing how you're managing to get everything mainlined
<gzamboni>
this is a sweet comunity, i was happy to know some of you at Fosdem
<gzamboni>
hi hipboi_
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<gzamboni>
i saw somewhere allwinner was developping an IC for watches, i cant find anything anymore
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<Turl>
gzamboni: it was/is called WX
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<Turl>
Q4 this year I think
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<gzamboni>
Q4, 2014: WX Ultra small, ultra low power chipset for wearables
<gzamboni>
:)
<Turl>
they were also saying A80 would be in Q1 though, then Q2..
<Turl>
so I'd take it with a grain of salt
<gzamboni>
i talked to my brother yesterday, he said he's working on an Altera ARm cortex-A9 with 1ghz and separated FPGA for programing the IP's
<gzamboni>
"IPs" for all the microcontroller stuff
<gzamboni>
he also mentionned that there is a website with some open stuff for like I2C, SPI
<wens>
opencores?
<gzamboni>
in the FPGA programing language
<gzamboni>
yes,i think thats the website
<gzamboni>
thanks wens
<Turl>
gzamboni: a socfpga from altera?
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<gzamboni>
if i well understood its an ARM without any microcontroller funcion but with a separated FPGA
<gzamboni>
so you can program your own fpga or use one from opencore and use it as a microcontroller
<gzamboni>
i dont know if i fully understood what he explained to me, as far as i understood, it should have 2 cores, one ARM cortexA9 and another FPGA processor, so programming the fpga you can do a SoC
<wens>
somehow i can't get fastboot to use initramfs
<wens>
mripard: mine hangs around the time it gets to userspace dhcp or login prompt
<mripard>
exactly the same here.
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<mripard>
while it works fine with the colombus board
<wens>
rcu_sched detected stalls on CPUs/tasks: { 1} (detected by 0, t=2102 jiffies, g=-250, c=-251, q=1)
<wens>
Task dump for CPU 1:
<wens>
swapper/1 R running 0 0 1 0x00000002
<wens>
loaded using sdcard.img
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<mripard>
I wouldn't trust the sdcard image that much actually.
<mripard>
it's one for the colombus board, so a lot of things can be just plain wrong
<mripard>
and cause the crash.
<wens>
I should update it with boot0/boot1 from the new sdk then
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<mripard>
yes
<mripard>
or just use fastboot.
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<mripard>
with the bootloader on the board already, and at least you're sure you're having the right one
<wens>
I think the timer is faulty
<wens>
it's not even rebooting after panic
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<mripard>
if the timer was faulty, it wouldn't go past the delay loop calibration
<mripard>
and usually a panic doesn't make a reset
<wens>
even with panic=N ?
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<mripard>
if N=0, it won't
<mripard>
and the reset driver might not be loaded
<wens>
ah right
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<wens>
i got the null dereference too
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<wens>
mripard: dropping the enable-method makes mine work
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<mripard>
hmmm, interesting
<mripard>
so that's the SMP that is broken on this board
<mripard>
it would be interesting to look at what their kernel is doing to bring up the CPUs
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<wens>
looks the same
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<maksimlin>
wens or mripard any ideas why I would be getting half-garbled uart output when booting my hummingbird ??- just with the default android installed on nand - not usng anthing custom on sdcard yet
<maksimlin>
sorry to inruptt your curent work - its just when I say grabled I mean eg... dram size =1024~���~�������������ading Boot1.
<maksimlin>
Jump to Boot1
<wens>
half-garbled meaning some of it is legible?
<maksimlin>
wens yes
<maksimlin>
so some of the text eactly what I expect eg from bootloader and then some garbage chars
<wens>
my guess is interference or bad uart
<wens>
if you have spare uart converters, try another one
<maksimlin>
hmm good point, I just used the pl2033 usb cable they inclued in the box, I'
<maksimlin>
Ill try a diff ftdi one i have
<lioka>
maksimlin: probably you need pull-up resistor
<maksimlin>
lioka: a pull-resistor on rx & tx ?
<lioka>
rx on pl2303 side
<lioka>
smht like 680 ohm between rx and +3.3v
* lioka
had similar problem on another board
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<wens>
i must say the nand bootloader is nice, it checks mmc0 first
<wens>
mripard: i have usb working, i'll send you a patch to squash, or maybe just the whole file
<maksimlin>
lioka: ok thanks I'll go dig out my breadboard and give it a try - using a ftdi based adapter doesnt work at all for some reason
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<astr>
wheres there source code for the olimex lime bootloader?
<plaes>
astr: #olimexaa
<plaes>
duh.. #olimex
<astr>
I know but I thought I might actually get a reply on #linux-sunxi
<plaes>
it should be u-boot, but dunno whether it's mainline or a fork
<lioka>
cc -Wall -o test test.c -lEGL -lGLESv2 -lX11
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<zombu2>
umm
<zombu2>
i m sorry i assume that gets added to a file
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<zombu2>
ah found it
<zombu2>
the makefile
<zombu2>
great i see a rainbow colored triangle
<zombu2>
lioka one more question is there a way to get 2d acceleration going so the windows move a little more quickly when you move them around and maybe get video acceleration going for like youtube
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<ssvb>
zombu2: on which hardware?
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<zombu2>
ssvb cubietruck
<zombu2>
maybe later when i got some time for the radxa
<ssvb>
zombu2: moving windows should be already fast if you are using the fbturbo ddx driver
<zombu2>
fbturbo but moving windows is choppy and slow
<zombu2>
veeeery slow
<ssvb>
zombu2: this is clearly very abnormal, can you check the /var/log/Xorg.0.log file?