Re: [linux-sunxi] Discussion about mainlining the A83T

[Vishnu Patekar]

Hello Simos,
It would be great if you share AXP81x/8 datasheet.


Regards,
Vishnu

On Wed, Jun 17, 2015 at 4:03 PM, Chen-Yu Tsai  wrote:

> On Wed, Jun 17, 2015 at 3:44 PM, Simos Xenitellis
>  wrote:
> > On Mon, Jun 15, 2015 at 10:56 AM, Chen-Yu Tsai  wrote:
> >> On Sat, Jun 13, 2015 at 5:05 PM, 'Simos Xenitellis' via linux-sunxi
> >>  wrote:
> >>> Hi All!
> >>>
> >>> Recently, several people received developer boards with the A83T SoC.
> >>>
> >>> I have collected information from a few sources and put them on
> >>> https://linux-sunxi.org/User:Simos/H8HomletProtoV20_A83T
> >>>
> >>> The page includes a comparison of modules of the A83T with other
> A-line SoCs.
> >>> There are high-resolution images of the board.
> >>> In addition, the page has boot messages and also output of commands
> >>> from the pre-installed BR Linux (kernel version: 3.4).
> >>
> >> Some facts about the board:
> >>
> >> Boot0 is V4.0.0.
> >> DRAM is 1GB DDR3 @ 672 MHz.
> >> eMMC is 8GB (7.32 GiB).
> >> AXP818 is a PMIC & audio codec combo.
> >> AC200 is a audio codec (unused here), TV encoder, ethernet PHY and RTC
> >> 4-in-1 chip.
> >> USB0 (OTG) and USB1 (EHCI/OHCI) are routed directly to the 2 USB ports.
> >> That means no actual OTG, only host mode.
> >>
> >> The board (and schematics) say this is an H8.
> >> However I won't be removing the heatsink to verify.
> >> I don't recommend it either. It is quite warm just idling.
> >> That said, the A83T has the same packing as the H8 (BGA 345),
> >> though I have not compared the actual pin signals.
> >>
> >> Kevin, Shuge, do you know if the 2 chips are actually the same?
> >> 請問 A83T 和 H8 是一樣的晶片嗎? 提供給我們的板子上是印 H8，
> >> 但告知我們是 A83T 的原型機，讓人不是很有把握。
> >>
> >> The board runs a customized Android system.
> >>
> >
> > My impression is that it's just Buildroot (on /dev/mmcblk0p7),
> > https://linux-sunxi.org/User:Simos/H8HomletProtoV20_A83T
>
> I've not really played around with it. The filesystem looks more Android
> than Linux, but signature Android buttons are missing.
>
> > Did you manage to boot some other partition (like the big
> /dev/mmcblk0p1)?
> >
> > The partition /dev/mmcblk0p2 (FAT16) can be mounted, but only has
> > images (as in BMP) and .FNT files
> > and no other important files.
>
> The layout is the same as other Allwinner stock ROMs. There is only one
> system.
>
> >> Not sure if FEL mode or Android fastboot would work on this board.
> >> If not, it's going to be hard to mainline without U-boot support.
> >>
> >
> > You can get into FEL mode if you keep pressing "2" while in the serial
> > console and then restart the board.
> > Perhaps I am missing something?
>
> Getting into FEL mode is not the issue. Whether it will work with a host
> mode only OTG port is. I do not have a type A USB cable to test this.
>
> ChenYu
>
> >> UART0 is the 5 pin-out next to the WiFi module and AXP818.
> >> It shares the same pinout as the micro-SD breakout, or the
> >> A80 Optimus. Note that the onboard OS muxes UART0 onto mmc0
> >> instead. :|
> >>
> >> ChenYu
> >>
> >>> I'ld like to start a thread about the planning of the mainlining of
> the A83T.
> >>>
> >>> If there are any other topics not directly related to this thread,
> >>> please start a new thread.
>
> --
> You received this message because you are subscribed to the Google Groups
> "linux-sunxi" group.
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>

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Re: [linux-sunxi] Discussion about mainlining the A83T

['Simos Xenitellis' via linux-sunxi]

On Mon, Jun 15, 2015 at 10:56 AM, Chen-Yu Tsai w...@csie.org wrote:
 On Sat, Jun 13, 2015 at 5:05 PM, 'Simos Xenitellis' via linux-sunxi
 linux-sunxi@googlegroups.com wrote:
 Hi All!

 Recently, several people received developer boards with the A83T SoC.

 I have collected information from a few sources and put them on
 https://linux-sunxi.org/User:Simos/H8HomletProtoV20_A83T

 The page includes a comparison of modules of the A83T with other A-line SoCs.
 There are high-resolution images of the board.
 In addition, the page has boot messages and also output of commands
 from the pre-installed BR Linux (kernel version: 3.4).

 Some facts about the board:

 Boot0 is V4.0.0.
 DRAM is 1GB DDR3 @ 672 MHz.
 eMMC is 8GB (7.32 GiB).
 AXP818 is a PMIC  audio codec combo.
 AC200 is a audio codec (unused here), TV encoder, ethernet PHY and RTC
 4-in-1 chip.
 USB0 (OTG) and USB1 (EHCI/OHCI) are routed directly to the 2 USB ports.
 That means no actual OTG, only host mode.

 The board (and schematics) say this is an H8.
 However I won't be removing the heatsink to verify.
 I don't recommend it either. It is quite warm just idling.
 That said, the A83T has the same packing as the H8 (BGA 345),
 though I have not compared the actual pin signals.

 Kevin, Shuge, do you know if the 2 chips are actually the same?
 請問 A83T 和 H8 是一樣的晶片嗎? 提供給我們的板子上是印 H8，
 但告知我們是 A83T 的原型機，讓人不是很有把握。

 The board runs a customized Android system.


My impression is that it's just Buildroot (on /dev/mmcblk0p7),
https://linux-sunxi.org/User:Simos/H8HomletProtoV20_A83T

Did you manage to boot some other partition (like the big /dev/mmcblk0p1)?

The partition /dev/mmcblk0p2 (FAT16) can be mounted, but only has
images (as in BMP) and .FNT files
and no other important files.

 Not sure if FEL mode or Android fastboot would work on this board.
 If not, it's going to be hard to mainline without U-boot support.


You can get into FEL mode if you keep pressing 2 while in the serial
console and then restart the board.
Perhaps I am missing something?

Simos

 UART0 is the 5 pin-out next to the WiFi module and AXP818.
 It shares the same pinout as the micro-SD breakout, or the
 A80 Optimus. Note that the onboard OS muxes UART0 onto mmc0
 instead. :|

 ChenYu

 I'ld like to start a thread about the planning of the mainlining of the A83T.

 If there are any other topics not directly related to this thread,
 please start a new thread.

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Re: [linux-sunxi] Discussion about mainlining the A83T

[Chen-Yu Tsai]

On Wed, Jun 17, 2015 at 3:44 PM, Simos Xenitellis
simos.li...@googlemail.com wrote:
 On Mon, Jun 15, 2015 at 10:56 AM, Chen-Yu Tsai w...@csie.org wrote:
 On Sat, Jun 13, 2015 at 5:05 PM, 'Simos Xenitellis' via linux-sunxi
 linux-sunxi@googlegroups.com wrote:
 Hi All!

 Recently, several people received developer boards with the A83T SoC.

 I have collected information from a few sources and put them on
 https://linux-sunxi.org/User:Simos/H8HomletProtoV20_A83T

 The page includes a comparison of modules of the A83T with other A-line 
 SoCs.
 There are high-resolution images of the board.
 In addition, the page has boot messages and also output of commands
 from the pre-installed BR Linux (kernel version: 3.4).

 Some facts about the board:

 Boot0 is V4.0.0.
 DRAM is 1GB DDR3 @ 672 MHz.
 eMMC is 8GB (7.32 GiB).
 AXP818 is a PMIC  audio codec combo.
 AC200 is a audio codec (unused here), TV encoder, ethernet PHY and RTC
 4-in-1 chip.
 USB0 (OTG) and USB1 (EHCI/OHCI) are routed directly to the 2 USB ports.
 That means no actual OTG, only host mode.

 The board (and schematics) say this is an H8.
 However I won't be removing the heatsink to verify.
 I don't recommend it either. It is quite warm just idling.
 That said, the A83T has the same packing as the H8 (BGA 345),
 though I have not compared the actual pin signals.

 Kevin, Shuge, do you know if the 2 chips are actually the same?
 請問 A83T 和 H8 是一樣的晶片嗎? 提供給我們的板子上是印 H8，
 但告知我們是 A83T 的原型機，讓人不是很有把握。

 The board runs a customized Android system.


 My impression is that it's just Buildroot (on /dev/mmcblk0p7),
 https://linux-sunxi.org/User:Simos/H8HomletProtoV20_A83T

I've not really played around with it. The filesystem looks more Android
than Linux, but signature Android buttons are missing.

 Did you manage to boot some other partition (like the big /dev/mmcblk0p1)?

 The partition /dev/mmcblk0p2 (FAT16) can be mounted, but only has
 images (as in BMP) and .FNT files
 and no other important files.

The layout is the same as other Allwinner stock ROMs. There is only one system.

 Not sure if FEL mode or Android fastboot would work on this board.
 If not, it's going to be hard to mainline without U-boot support.


 You can get into FEL mode if you keep pressing 2 while in the serial
 console and then restart the board.
 Perhaps I am missing something?

Getting into FEL mode is not the issue. Whether it will work with a host
mode only OTG port is. I do not have a type A USB cable to test this.

ChenYu

 UART0 is the 5 pin-out next to the WiFi module and AXP818.
 It shares the same pinout as the micro-SD breakout, or the
 A80 Optimus. Note that the onboard OS muxes UART0 onto mmc0
 instead. :|

 ChenYu

 I'ld like to start a thread about the planning of the mainlining of the 
 A83T.

 If there are any other topics not directly related to this thread,
 please start a new thread.

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Re: Re: [linux-sunxi] Discussion about mainlining the A83T

[jonsm...@gmail.com]

On Mon, Jun 15, 2015 at 4:06 AM, ke...@allwinnertech.com
ke...@allwinnertech.com wrote:
 Hi, ChenYu,

 Kevin, Shuge, do you know if the 2 chips are actually the same?
 請問 A83T 和 H8 是一樣的晶片嗎? 提供給我們的板子上是印 H8，
 但告知我們是 A83T 的原型機，讓人不是很有把握。
 Yes, I have checked with my hardware colleague.
 Some chips of H8 is same as A83T, and others are not.
 The chips on the develop boards are same as the A83T, just different mark.

What is the difference between the A83T and H8? We are looking at
using the H8 in a product we have under development. I have an Orange
Pi 2 on order but it hasn't shipped yet.

Does the H8 have the newer h.264 encoder that can compress more?

Is Android Lollipop coming for the H8?



 
 Best Regards,
 ke...@allwinnertech.com


 From: Chen-Yu Tsai
 Date: 2015-06-15 15:56
 To: Simos Xenitellis; Meng Zhang; shuge
 CC: linux-sunxi
 Subject: Re: [linux-sunxi] Discussion about mainlining the A83T
 On Sat, Jun 13, 2015 at 5:05 PM, 'Simos Xenitellis' via linux-sunxi
 linux-sunxi@googlegroups.com wrote:
 Hi All!

 Recently, several people received developer boards with the A83T SoC.

 I have collected information from a few sources and put them on
 https://linux-sunxi.org/User:Simos/H8HomletProtoV20_A83T

 The page includes a comparison of modules of the A83T with other A-line
 SoCs.
 There are high-resolution images of the board.
 In addition, the page has boot messages and also output of commands
 from the pre-installed BR Linux (kernel version: 3.4).

 Some facts about the board:

 Boot0 is V4.0.0.
 DRAM is 1GB DDR3 @ 672 MHz.
 eMMC is 8GB (7.32 GiB).
 AXP818 is a PMIC  audio codec combo.
 AC200 is a audio codec (unused here), TV encoder, ethernet PHY and RTC
 4-in-1 chip.
 USB0 (OTG) and USB1 (EHCI/OHCI) are routed directly to the 2 USB ports.
 That means no actual OTG, only host mode.

 The board (and schematics) say this is an H8.
 However I won't be removing the heatsink to verify.
 I don't recommend it either. It is quite warm just idling.
 That said, the A83T has the same packing as the H8 (BGA 345),
 though I have not compared the actual pin signals.

 Kevin, Shuge, do you know if the 2 chips are actually the same?
 請問 A83T 和 H8 是一樣的晶片嗎? 提供給我們的板子上是印 H8，
 但告知我們是 A83T 的原型機，讓人不是很有把握。

 The board runs a customized Android system.

 Not sure if FEL mode or Android fastboot would work on this board.
 If not, it's going to be hard to mainline without U-boot support.

 UART0 is the 5 pin-out next to the WiFi module and AXP818.
 It shares the same pinout as the micro-SD breakout, or the
 A80 Optimus. Note that the onboard OS muxes UART0 onto mmc0
 instead. :|

 ChenYu

 I'ld like to start a thread about the planning of the mainlining of the
 A83T.

 If there are any other topics not directly related to this thread,
 please start a new thread.

 NOTICE: This e-mail and any included attachments are intended only for the
 sole use of named and intended recipient (s) only. If you are the named and
 intended recipient, please note that the information contained in this email
 and its embedded files are confidential and privileged. If you are neither
 the intended nor named recipient, you are hereby notified that any
 unauthorized review, use, disclosure, dissemination, distribution, or
 copying of this communication, or any of its contents, is strictly
 prohibited. Please reply to the sender and destroy the original message and
 all your records of this message (whether electronic or otherwise).
 Furthermore, you should not disclose to any other person, use, copy or
 disseminate the contents of this e-mail and/or the documents accompanying
 it.

 --
 You received this message because you are subscribed to the Google Groups
 linux-sunxi group.
 To unsubscribe from this group and stop receiving emails from it, send an
 email to linux-sunxi+unsubscr...@googlegroups.com.
 For more options, visit https://groups.google.com/d/optout.



-- 
Jon Smirl
jonsm...@gmail.com

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Re: Re: [linux-sunxi] Discussion about mainlining the A83T

[Julian Calaby]

Hi Kevin,

On Tue, Jun 16, 2015 at 3:26 PM, kevin.z.m...@gmail.com
kevin.z.m...@gmail.com wrote:
 Hi, All,

 Sorry for the A83T develop board designing ugly.
 Actually, it's not a true develop boards, but a product verification board.
 There is no other boards which is good for development now, most boards
 are tablets, so, I choose this board for developers.
 Maybe there will be good designed develop boards prodcuts in the future.

Ok, that makes sense.

Thanks,

-- 
Julian Calaby

Email: julian.cal...@gmail.com
Profile: http://www.google.com/profiles/julian.calaby/

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Re: Re: [linux-sunxi] Discussion about mainlining the A83T

['Simos Xenitellis' via linux-sunxi]

On Mon, Jun 15, 2015 at 6:15 AM, Julian Calaby julian.cal...@gmail.com wrote:
 Hi Kevin,

 On Mon, Jun 15, 2015 at 1:12 PM, ke...@allwinnertech.com
 ke...@allwinnertech.com wrote:
 Hi, Simos,

 The board is defined as A83T develop Board.
 This board is a bit different as the picture I have send to you last time,
 and
 you can take the attachment as a refference.

 Is the TF / SD card slot really hanging off the board like that?
 Aren't you afraid it'll get snapped off?


It's a prototype for the purpose of being developer friendly for mainline work.
It's not an end-user product.

Simos

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Re: Re: [linux-sunxi] Discussion about mainlining the A83T

['Simos Xenitellis' via linux-sunxi]

On Mon, Jun 15, 2015 at 6:12 AM, ke...@allwinnertech.com
ke...@allwinnertech.com wrote:
 Hi, Simos,

 The board is defined as A83T develop Board.
 This board is a bit different as the picture I have send to you last time,
 and
 you can take the attachment as a refference.


Thanks, I added this at
https://linux-sunxi.org/User:Simos/H8HomletProtoV20_A83T

and I am preparing the device page at
https://linux-sunxi.org/User:Simos/Allwinner_A83TDevBoard

Simos

 
 Best Regards,
 ke...@allwinnertech.com


 From: Simos Xenitellis
 Date: 2015-06-15 04:46
 To: Luc Verhaegen
 CC: 'Simos Xenitellis' via linux-sunxi; Meng Zhang; shuge
 Subject: Re: [linux-sunxi] Discussion about mainlining the A83T
 On Sat, Jun 13, 2015 at 2:39 PM, Luc Verhaegen l...@skynet.be wrote:
 On Sat, Jun 13, 2015 at 12:05:28PM +0300, 'Simos Xenitellis' via
 linux-sunxi wrote:
 Hi All!

 Recently, several people received developer boards with the A83T SoC.

 I have collected information from a few sources and put them on
 https://linux-sunxi.org/User:Simos/H8HomletProtoV20_A83T

 The page includes a comparison of modules of the A83T with other A-line
 SoCs.
 There are high-resolution images of the board.
 In addition, the page has boot messages and also output of commands
 from the pre-installed BR Linux (kernel version: 3.4).

 I'ld like to start a thread about the planning of the mainlining of the
 A83T.

 If there are any other topics not directly related to this thread,
 please start a new thread.

 Simos

 Try the New_Device_Howto.


 What name (on the wiki URL) shall the device have?
 On the board it says H8 but the SoC under the heatsink it is the A83T.

 Simos

 NOTICE: This e-mail and any included attachments are intended only for the
 sole use of named and intended recipient (s) only. If you are the named and
 intended recipient, please note that the information contained in this email
 and its embedded files are confidential and privileged. If you are neither
 the intended nor named recipient, you are hereby notified that any
 unauthorized review, use, disclosure, dissemination, distribution, or
 copying of this communication, or any of its contents, is strictly
 prohibited. Please reply to the sender and destroy the original message and
 all your records of this message (whether electronic or otherwise).
 Furthermore, you should not disclose to any other person, use, copy or
 disseminate the contents of this e-mail and/or the documents accompanying
 it.

 --
 You received this message because you are subscribed to the Google Groups
 linux-sunxi group.
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Re: Re: [linux-sunxi] Discussion about mainlining the A83T

[kevin.z.m...@gmail.com]

Hi, All,

Sorry for the A83T develop board designing ugly.
Actually, it's not a true develop boards, but a product verification board.
There is no other boards which is good for development now, most boards
are tablets, so, I choose this board for developers.
Maybe there will be good designed develop boards prodcuts in the future.




kevin.z.m...@gmail.com
 
From: Julian Calaby
Date: 2015-06-16 07:48
To: Simos Xenitellis
CC: Meng Zhang; Luc Verhaegen; linux-sunxi@googlegroups.com; 吴书耕
Subject: Re: Re: [linux-sunxi] Discussion about mainlining the A83T
Hi Simos,
 
On Tue, Jun 16, 2015 at 3:05 AM, Simos Xenitellis
simos.li...@googlemail.com wrote:
 On Mon, Jun 15, 2015 at 6:15 AM, Julian Calaby julian.cal...@gmail.com 
 wrote:
 Hi Kevin,

 On Mon, Jun 15, 2015 at 1:12 PM, ke...@allwinnertech.com
 ke...@allwinnertech.com wrote:
 Hi, Simos,

 The board is defined as A83T develop Board.
 This board is a bit different as the picture I have send to you last time,
 and
 you can take the attachment as a refference.

 Is the TF / SD card slot really hanging off the board like that?
 Aren't you afraid it'll get snapped off?


 It's a prototype for the purpose of being developer friendly for mainline 
 work.
 It's not an end-user product.
 
I understand that, however I've never seen a dev board with something that ugly.
 
E.g. all the 96Boards boards released aren't that ugly. The Raspberry
Pi prototypes weren't that ugly, no BeagleBone board is that ugly,
nothing produced by _any_ of the Allwinner dev board producers
(Olimex, Cubie, etc.) is that ugly, no board I've seen on CNX software
is that ugly, etc. I've hacked together microSD card sockets for
Arduinos that weren't that ugly. It just sticks out (both literally
and metaphorically) and makes me question why. Particularly when
there's enough PCB space for it a couple of cm away from where it
ended up.
 
Furthermore, I know, from experience, that kernel development involves
a lot of moving stuff around and rebooting and unplugging and
re-plugging of mass storage. I'm not convinced it'd be strong enough
to survive that.
 
Thanks,
 
-- 
Julian Calaby
 
Email: julian.cal...@gmail.com
Profile: http://www.google.com/profiles/julian.calaby/

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Re: Re: [linux-sunxi] Discussion about mainlining the A83T

[ke...@allwinnertech.com]

Hi, ChenYu,

 Kevin, Shuge, do you know if the 2 chips are actually the same?
 請問 A83T 和 H8 是一樣的晶片嗎? 提供給我們的板子上是印 H8，
 但告知我們是 A83T 的原型機，讓人不是很有把握。
Yes, I have checked with my hardware colleague.
Some chips of H8 is same as A83T, and others are not.
The chips on the develop boards are same as the A83T, just different mark.


Best Regards,
ke...@allwinnertech.com

From: Chen-Yu Tsaimailto:w...@csie.org
Date: 2015-06-15 15:56
To: Simos Xenitellismailto:simos.li...@googlemail.com; Meng 
Zhangmailto:ke...@allwinnertech.com; shugemailto:sh...@allwinnertech.com
CC: linux-sunximailto:linux-sunxi@googlegroups.com
Subject: Re: [linux-sunxi] Discussion about mainlining the A83T
On Sat, Jun 13, 2015 at 5:05 PM, 'Simos Xenitellis' via linux-sunxi
linux-sunxi@googlegroups.com wrote:
 Hi All!

 Recently, several people received developer boards with the A83T SoC.

 I have collected information from a few sources and put them on
 https://linux-sunxi.org/User:Simos/H8HomletProtoV20_A83T

 The page includes a comparison of modules of the A83T with other A-line SoCs.
 There are high-resolution images of the board.
 In addition, the page has boot messages and also output of commands
 from the pre-installed BR Linux (kernel version: 3.4).

Some facts about the board:

Boot0 is V4.0.0.
DRAM is 1GB DDR3 @ 672 MHz.
eMMC is 8GB (7.32 GiB).
AXP818 is a PMIC  audio codec combo.
AC200 is a audio codec (unused here), TV encoder, ethernet PHY and RTC
4-in-1 chip.
USB0 (OTG) and USB1 (EHCI/OHCI) are routed directly to the 2 USB ports.
That means no actual OTG, only host mode.

The board (and schematics) say this is an H8.
However I won't be removing the heatsink to verify.
I don't recommend it either. It is quite warm just idling.
That said, the A83T has the same packing as the H8 (BGA 345),
though I have not compared the actual pin signals.

Kevin, Shuge, do you know if the 2 chips are actually the same?
請問 A83T 和 H8 是一樣的晶片嗎? 提供給我們的板子上是印 H8，
但告知我們是 A83T 的原型機，讓人不是很有把握。

The board runs a customized Android system.

Not sure if FEL mode or Android fastboot would work on this board.
If not, it's going to be hard to mainline without U-boot support.

UART0 is the 5 pin-out next to the WiFi module and AXP818.
It shares the same pinout as the micro-SD breakout, or the
A80 Optimus. Note that the onboard OS muxes UART0 onto mmc0
instead. :|

ChenYu

 I'ld like to start a thread about the planning of the mainlining of the A83T.

 If there are any other topics not directly related to this thread,
 please start a new thread.
NOTICE: This e-mail and any included attachments are intended only for the sole 
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Re: [linux-sunxi] Discussion about mainlining the A83T

[Chen-Yu Tsai]

On Sat, Jun 13, 2015 at 5:05 PM, 'Simos Xenitellis' via linux-sunxi
linux-sunxi@googlegroups.com wrote:
 Hi All!

 Recently, several people received developer boards with the A83T SoC.

 I have collected information from a few sources and put them on
 https://linux-sunxi.org/User:Simos/H8HomletProtoV20_A83T

 The page includes a comparison of modules of the A83T with other A-line SoCs.
 There are high-resolution images of the board.
 In addition, the page has boot messages and also output of commands
 from the pre-installed BR Linux (kernel version: 3.4).

Some facts about the board:

Boot0 is V4.0.0.
DRAM is 1GB DDR3 @ 672 MHz.
eMMC is 8GB (7.32 GiB).
AXP818 is a PMIC  audio codec combo.
AC200 is a audio codec (unused here), TV encoder, ethernet PHY and RTC
4-in-1 chip.
USB0 (OTG) and USB1 (EHCI/OHCI) are routed directly to the 2 USB ports.
That means no actual OTG, only host mode.

The board (and schematics) say this is an H8.
However I won't be removing the heatsink to verify.
I don't recommend it either. It is quite warm just idling.
That said, the A83T has the same packing as the H8 (BGA 345),
though I have not compared the actual pin signals.

Kevin, Shuge, do you know if the 2 chips are actually the same?
請問 A83T 和 H8 是一樣的晶片嗎? 提供給我們的板子上是印 H8，
但告知我們是 A83T 的原型機，讓人不是很有把握。

The board runs a customized Android system.

Not sure if FEL mode or Android fastboot would work on this board.
If not, it's going to be hard to mainline without U-boot support.

UART0 is the 5 pin-out next to the WiFi module and AXP818.
It shares the same pinout as the micro-SD breakout, or the
A80 Optimus. Note that the onboard OS muxes UART0 onto mmc0
instead. :|

ChenYu

 I'ld like to start a thread about the planning of the mainlining of the A83T.

 If there are any other topics not directly related to this thread,
 please start a new thread.

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Re: Re: [linux-sunxi] Discussion about mainlining the A83T

[Julian Calaby]

Hi Simos,

On Tue, Jun 16, 2015 at 3:05 AM, Simos Xenitellis
simos.li...@googlemail.com wrote:
 On Mon, Jun 15, 2015 at 6:15 AM, Julian Calaby julian.cal...@gmail.com 
 wrote:
 Hi Kevin,

 On Mon, Jun 15, 2015 at 1:12 PM, ke...@allwinnertech.com
 ke...@allwinnertech.com wrote:
 Hi, Simos,

 The board is defined as A83T develop Board.
 This board is a bit different as the picture I have send to you last time,
 and
 you can take the attachment as a refference.

 Is the TF / SD card slot really hanging off the board like that?
 Aren't you afraid it'll get snapped off?


 It's a prototype for the purpose of being developer friendly for mainline 
 work.
 It's not an end-user product.

I understand that, however I've never seen a dev board with something that ugly.

E.g. all the 96Boards boards released aren't that ugly. The Raspberry
Pi prototypes weren't that ugly, no BeagleBone board is that ugly,
nothing produced by _any_ of the Allwinner dev board producers
(Olimex, Cubie, etc.) is that ugly, no board I've seen on CNX software
is that ugly, etc. I've hacked together microSD card sockets for
Arduinos that weren't that ugly. It just sticks out (both literally
and metaphorically) and makes me question why. Particularly when
there's enough PCB space for it a couple of cm away from where it
ended up.

Furthermore, I know, from experience, that kernel development involves
a lot of moving stuff around and rebooting and unplugging and
re-plugging of mass storage. I'm not convinced it'd be strong enough
to survive that.

Thanks,

-- 
Julian Calaby

Email: julian.cal...@gmail.com
Profile: http://www.google.com/profiles/julian.calaby/

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Re: Re: [linux-sunxi] Discussion about mainlining the A83T

[Julian Calaby]

Hi Kevin,

On Mon, Jun 15, 2015 at 1:12 PM, ke...@allwinnertech.com
ke...@allwinnertech.com wrote:
 Hi, Simos,

 The board is defined as A83T develop Board.
 This board is a bit different as the picture I have send to you last time,
 and
 you can take the attachment as a refference.

Is the TF / SD card slot really hanging off the board like that?
Aren't you afraid it'll get snapped off?

Thanks,

-- 
Julian Calaby

Email: julian.cal...@gmail.com
Profile: http://www.google.com/profiles/julian.calaby/

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Re: [linux-sunxi] Discussion about mainlining the A83T

['Simos Xenitellis' via linux-sunxi]

On Sat, Jun 13, 2015 at 2:39 PM, Luc Verhaegen l...@skynet.be wrote:
 On Sat, Jun 13, 2015 at 12:05:28PM +0300, 'Simos Xenitellis' via linux-sunxi 
 wrote:
 Hi All!

 Recently, several people received developer boards with the A83T SoC.

 I have collected information from a few sources and put them on
 https://linux-sunxi.org/User:Simos/H8HomletProtoV20_A83T

 The page includes a comparison of modules of the A83T with other A-line SoCs.
 There are high-resolution images of the board.
 In addition, the page has boot messages and also output of commands
 from the pre-installed BR Linux (kernel version: 3.4).

 I'ld like to start a thread about the planning of the mainlining of the A83T.

 If there are any other topics not directly related to this thread,
 please start a new thread.

 Simos

 Try the New_Device_Howto.


What name (on the wiki URL) shall the device have?
On the board it says H8 but the SoC under the heatsink it is the A83T.

Simos

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Re: [linux-sunxi] Discussion about mainlining the A83T

[Luc Verhaegen]

On Sat, Jun 13, 2015 at 12:05:28PM +0300, 'Simos Xenitellis' via linux-sunxi 
wrote:
 Hi All!
 
 Recently, several people received developer boards with the A83T SoC.
 
 I have collected information from a few sources and put them on
 https://linux-sunxi.org/User:Simos/H8HomletProtoV20_A83T
 
 The page includes a comparison of modules of the A83T with other A-line SoCs.
 There are high-resolution images of the board.
 In addition, the page has boot messages and also output of commands
 from the pre-installed BR Linux (kernel version: 3.4).
 
 I'ld like to start a thread about the planning of the mainlining of the A83T.
 
 If there are any other topics not directly related to this thread,
 please start a new thread.
 
 Simos

Try the New_Device_Howto.

Luc Verhaegen.

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[linux-sunxi] Discussion about mainlining the A83T

['Simos Xenitellis' via linux-sunxi]

Hi All!

Recently, several people received developer boards with the A83T SoC.

I have collected information from a few sources and put them on
https://linux-sunxi.org/User:Simos/H8HomletProtoV20_A83T

The page includes a comparison of modules of the A83T with other A-line SoCs.
There are high-resolution images of the board.
In addition, the page has boot messages and also output of commands
from the pre-installed BR Linux (kernel version: 3.4).

I'ld like to start a thread about the planning of the mainlining of the A83T.

If there are any other topics not directly related to this thread,
please start a new thread.

Simos

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