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What is the A10? Specs, Devices and Resources

Posted by gnexus 
Re: Query about multiple function selection in a single pin
January 13, 2013 06:57AM
I've now some garbage output due to bad serial connexion, from the tx/rx testpin near the SoC.

tomorrow, i'll buy a max 232 to convert signals, and i'll be back here with some u-boot logs i hope.

thank you.
Re: What is the A10? Specs, Devices and Resources
January 15, 2013 04:29AM
Hi all,

I'm now able to see the bootlog of my Eken T01a !!
The only working pads are those near the Soc (rx/tx). The others (marked 011001, near the battery wires, are not).

Soldering was a real nightmare, but doing this have given me some informations :

First of all, my tablet seems to have been damaged before. I can only have a successful (but non full booting) bootsequence while doing some pressure on the board. If i don't, i've got a "Sdram initialisation error". (bad).

Anymay, here is the log, without Sdcad, with no more messages after "Loading Kernel". Perhaps an other debug console configuration is given from the kernel.

HELLO! BOOT0 is starting!
boot0 version : .3.0
dram size =512
Succeed in opening nand flash.
Succeed in reading Boot1 file head.
The size of Boot1 is 0x00036000.
The file stored in 0X00000000 of block 2 is perfect.
Check is correct.
Ready to disable icache.
Succeed in loading Boot1.
Jump to Boot1.
[       0.144] boot1 version : 1.3.1a
[       0.144] pmu type = 3
[       0.144] bat vol = 2
[       0.175] axi:ahb:apb=3:2:2
[       0.175] set dcdc2=1400, clock=1008 successed
[       0.176] key
[       0.189] no key found
[       0.189] flash init start
[       0.237] flash init finish
[       0.240] fs init ok
[       0.241] fattype FAT16
[       0.241] fs mount ok
[       0.247] script finish
[       0.248] power finish
[       0.256] BootMain start

[       0.256] 0

[       0.275] key value = 0

[       0.275] recovery key high 6, low 4

[       0.276] unable to find fastboot_key key_max value

[       0.283] test for multi os boot with display

[       0.285] show pic finish

[       0.288] load kernel start

[       0.309] load kernel successed

[       0.309] start address = 0x4a


U-Boot 2011.09-rc1-00001-g137aa1c (May 17 2012 - 13:46:14) Allwinner Technology

CPU:   SUNXI Family
Board: A10-EVB
DRAM:  512 MiB
NAND:  3896 MiB
In:    serial
Out:   serial
Err:   serial
--------fastboot partitions--------
-total partitions:9-
-name-        -start-       -size-     
bootloader  : 100000        1000000   
env         : 1100000       200000     
boot        : 1300000       2000000   
system      : 3300000       10000000   
data        : 13300000      40000000   
misc        : 53300000      100000     
recovery    : 53400000      2000000   
cache       : 55400000      8000000   
UDISK       : 5d400000      96400000   
-----------------------------------
Recovery detected, will boot recovery
Hit any key to stop autoboot:  0

NAND read: device 0 offset 0x53400000, size 0x2000000
 33554432 bytes read: OK

Starting kernel ...

Thank you for your help.

i'm now going to investigate the SDcard boot thing, and perhaps be able in few days to reflash the internal nand to boot normally.



Edited 2 time(s). Last edit at 01/15/2013 08:44AM by dagoo.
Re: What is the A10? Specs, Devices and Resources
January 15, 2013 11:32AM
Quote

I'm now able to see the bootlog of my Eken T01a !!

Congrats on getting the serial port working! If I still had my T-01 I would be very interested in your work.

Quote

The only working pads are those near the Soc (rx/tx)

Figured as much from the IRC discussion I had. . .

Quote

i'm now going to investigate the SDcard boot thing,

That would be the opposite way most people have done it ;)

Quote

and perhaps be able in few days to reflash the internal nand to boot normally.

(Edit: Sorry: did not see your post before under rescue about the NAND - if you need an Android NAND image go here)

So currently you are booting Linux from NAND? Please also be aware that you can boot both from NAND (Android & Linux) and SD using uboot-multi or similar setup, and using the recovery partition for the NAND install. That method tends to boot more reliably on the tablets. It is only a couple spare GB left over for the install, but you can also put /home on the SD if you need more room.

Anyway, thanks for the update. Glad to hear it is working. This section of the thread should really be split off into a separate Eken serial port thread. . .



Edited 1 time(s). Last edit at 01/15/2013 08:39PM by gnexus.
Max
Re: Machines with Allwinner A10
March 02, 2013 10:30PM
Madhan
Re: What is the A10? Specs, Devices and Resources
December 03, 2013 01:07PM
It's very useful and informative in your A10 topic. First of all thanks for that. I don't know whether i can discuss my problem here. I am using an A10 based tablet one day I was installing an incompatible CWM recovery software after that i couldn't boot normally into my os it always leads me to recovery and no keys are working because of incompatible software soon i tried to flash my tablet with some of a10 firmwares but it gives me error every time both in livesuit as well as phoenixusbpro. I came to know may be the partitions had been altered that's why this problem ( i dont know exactly). I have posted in many places but no one can resolve my issue now i find this forum with more knowledge regarding NAND, partitions etc. Hence i kindly submit my problem to you please guide me to bounce back from the problem .. please ... :(
Re: What is the A10? Specs, Devices and Resources
January 18, 2017 08:30AM
you may do better posting this in the u-boot section
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