[linux-sunxi] Requesting Help on a USD15, Allwinner Quadcore 1.2Ghz 64-bit A53 Hardware

[khgoh99]

Hi,
We are a group of people currently trying to come out with a very low cost 
single board computer, by making use of Allwinner Quadcore 1.2Ghz 64-bit A53 
CPU. The target costing for the single board computer is USD15. The hardware 
will have a 4K HDMI video output and on board ethernet connection. Further 
more, each board will has its own unique MAC address. The objective for this 
project is to allow individual, having the opportunity to learn IT knowledge 
with a friction of the cost. Please refer to pine64.com for more detail on the 
hardware specification.

Currently, the hardware development on the board is almost ready. And with us, 
is the full Linux BSP with the true 64bit compiler. Due to budget constrain and 
our limited know-how in Linux, We would like to request the help from this 
community to bring up the Linux into a full function Ubuntu desktop, thus allow 
the user to truly owning a fully function open source computer with just a 
friction of the cost.

As for the hardware itself, currently we are in the mist of building some 
sample board to allow any interested developer to work on it.

Thanks and Regard,
KH Goh


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Re: [linux-sunxi] Requesting Help on a USD15, Allwinner Quadcore 1.2Ghz 64-bit A53 Hardware

[Luc Verhaegen]

On Sat, Nov 28, 2015 at 12:38:16AM -0800, khgo...@gmail.com wrote:
> Hi,
> We are a group of people currently trying to come out with a very low 
> cost single board computer, by making use of Allwinner Quadcore 1.2Ghz 
> 64-bit A53 CPU. The target costing for the single board computer is 
> USD15. The hardware will have a 4K HDMI video output and on board 
> ethernet connection. Further more, each board will has its own unique 
> MAC address. The objective for this project is to allow individual, 
> having the opportunity to learn IT knowledge with a friction of the 
> cost. Please refer to pine64.com for more detail on the hardware 
> specification.
> 
> Currently, the hardware development on the board is almost ready. And 
> with us, is the full Linux BSP with the true 64bit compiler. Due to 
> budget constrain and our limited know-how in Linux, We would like to 
> request the help from this community to bring up the Linux into a full 
> function Ubuntu desktop, thus allow the user to truly owning a fully 
> function open source computer with just a friction of the cost.
> 
> As for the hardware itself, currently we are in the mist of building 
> some sample board to allow any interested developer to work on it.
> 
> Thanks and Regard,
> KH Goh

Hi,

Thanks for contacting the canonical source of most things 
sunxi/allwinner before actually launching your kickstarter campaign. 

This is the first time since the original cubieboard that such a thing 
has happened. Many companies with similar products only afterwards find 
out to what extent they do depend on the linux-sunxi community, and then 
change their story in either direction. Often the work done by the 
people of the linux-sunxi community gets used directly, cloned/forked, 
and nothing is ever given back.

As you can see, we (and while i do not speak for all of us, i know that 
i am not alone here) are sceptical about whoever approaches us like 
this, especially when one of the first statements is "budget 
constraints". You cannot expect the linux-sunxi community to do your 
work for you for free.

You should however donate boards to many known and active linux-sunxi 
developers, but for that you must not expect anything in return. 
Whatever then happens, happens, or it doesn't. The results are usually 
quite positive, especially given the limited cost of said boards, but it 
will hardly ever consist of full support for your product (especially 
when based on a new SoC variant).

If you wish to have more complete support, you can always try to hire 
known linux-sunxi developers directly, or work with those members of our 
community who do contracting. The choice is up to you.

Thanks for reaching out to us before launching your marketing campaign, 
i hope that your collaboration with linux-sunxi ends up being just as 
fruitful as your kickstarter.

Luc Verhaegen.

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Re: [linux-sunxi] 3.4.104 on A10?

[Rudi]

On 21.11.2015 15:07, Siarhei Siamashka wrote:

> The current https://github.com/linux-sunxi/linux-sunxi/tree/sunxi-3.4
> kernel (commit d47d367036be38c5180632ec8a3ad169a4593a88) boots fine on
> my Cubieboard1 when compiled using sun4i_defconfig.

The problem is triggered by CONFIG_SECCOMP=y, which is not enabled in
sun4i_defconfig. It looks like there were some changes in that area
between 3.4.103 and 3.4.104. But I have not found the time to dig deeper.


-- 

Ruediger "Rudi" Ihle


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Re: [linux-sunxi] Banana Pi M3 (A83T based) soon ready to donate

[Luc Verhaegen]

On Sat, Nov 28, 2015 at 05:51:15PM +0100, Thomas Kaiser wrote:
> Hi,
> 
> anyone interested in one of SinoVoip's Banana Pi M3 to improve A83T
> support?
> 
> I've been selected to receive a free sample by SinoVoip due to being their
> most active forum member (a bit weird since most of the times I advise
> there against choosing SinoVoip products due to worst software/support
> possible :-) and still can't believe that instead of sending a contract
> killer to my address they obviously shipped the board instead:
> 
> https://nolp.dhl.de/nextt-online-public/set_identcodes.do?idc=7214605425
> 
> I'll take some pictures for our wiki, fill in informations there, provide
> a working Debian image and a set of tools to combine any rootfs with
> bootloader/kernel (none of the few linux images SinoVoip provides for
> download currently work since they're all corrupted... and they ship the
> devices without eMMC being populated) and write a review of the board.
> Will take approx. 2 weeks counting from the board's arrival ‹ see tracking
> URL above if you apply.
> 
> Then I'm done with it and would love to send the board to someone else
> working on A83T who has a better use for it than me (don't need it, A20
> still the best due to SATA even if it's slow for unknown reasons :-)

Keep it, you're doing good work.

Luc Verhaegen.

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[linux-sunxi] Re: 3.4.104 on A10?

[Igor Pecovnik]

There are some issues with danand kernel on A10. Some fixing / cleaning is 
needed.

But I don't have problems compiling from main community 
source: https://github.com/linux-sunxi/linux-sunxi

+ upgrade all the way to .110 I can confirm it's working fine on Cubieboard 
1 Note that patches not just work out of the box. I need to fix them. If 
you want to tray, you can find them 
here: https://github.com/igorpecovnik/lib/tree/second/patch/kernel 
(patch-103-104, 104-105, ...)

I use my own configuration and a bundle of patches over it but even without 
it should work just fine.


Dne sobota, 21. november 2015 13.37.30 UTC+1 je oseba ditma...@gmail.com 
napisala:
>
> Try an other kernel from danand or igor. Igor provides kernels for 
> different board. For example cubieboard 1 & 2. 
> http://www.armbian.com

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[linux-sunxi] Banana Pi M3 (A83T based) soon ready to donate

[Thomas Kaiser]

Hi,

anyone interested in one of SinoVoip's Banana Pi M3 to improve A83T
support?

I've been selected to receive a free sample by SinoVoip due to being their
most active forum member (a bit weird since most of the times I advise
there against choosing SinoVoip products due to worst software/support
possible :-) and still can't believe that instead of sending a contract
killer to my address they obviously shipped the board instead:

https://nolp.dhl.de/nextt-online-public/set_identcodes.do?idc=7214605425

I'll take some pictures for our wiki, fill in informations there, provide
a working Debian image and a set of tools to combine any rootfs with
bootloader/kernel (none of the few linux images SinoVoip provides for
download currently work since they're all corrupted... and they ship the
devices without eMMC being populated) and write a review of the board.
Will take approx. 2 weeks counting from the board's arrival ‹ see tracking
URL above if you apply.

Then I'm done with it and would love to send the board to someone else
working on A83T who has a better use for it than me (don't need it, A20
still the best due to SATA even if it's slow for unknown reasons :-)

Thx, Thomas


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Re: [linux-sunxi] Banana Pi M3 (A83T based) soon ready to donate

[Thomas Kaiser]

Luc Verhaegen wrote:

>Keep it, you're doing good work.

Thx, but I don't have any use for such a device (lacks I/O bandwidth
compared to processing power). The only thing I'm really curious about
A83T is the performance. Allwinner's weird press-release is still online:

http://www.allwinnertech.com/en/news/compnews/452.html

It can't be big.LITTLE, just little.LITTLE with 2 x A7 quad-core clusters
each. And I really doubt that the "around 2.0GHz" claim is true (TBC).

Anyway: Since some of us are working on A83T and I have no use for this
board after I'm done testing it, I still want to donate it. Preferably to
some of you devs that aren't focused solely on mainline since most of the
problems unfortunate BPi-M3 customers will run into might be solveable
easily by tweaking rotten 3.4.39 stuff (had a first look into it today ‹
woohoo!)

Thomas


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[linux-sunxi] [PATCH v4 1/5] clk: sunxi: Add CLK_OF_DECLARE support for sun8i-a23-apb0-clk driver

[Chen-Yu Tsai]

The APBS clock on sun9i is the same as the APB0 clock on sun8i. With
sun9i we are supporting the PRCM clocks by using CLK_OF_DECLARE,
instead of through a PRCM mfd device and subdevices for each clock
and reset control. As such we need a CLK_OF_DECLARE version of
the sun8i-a23-apb0-clk driver.

Also, build it for sun9i/A80, and not just for configurations with
MFD_SUN6I_PRCM enabled.

Signed-off-by: Chen-Yu Tsai 
---
 drivers/clk/sunxi/Makefile |  5 +--
 drivers/clk/sunxi/clk-sun8i-apb0.c | 71 +++---
 2 files changed, 62 insertions(+), 14 deletions(-)

diff --git a/drivers/clk/sunxi/Makefile b/drivers/clk/sunxi/Makefile
index cb4c299214ce..c55d5cd1c0e5 100644
--- a/drivers/clk/sunxi/Makefile
+++ b/drivers/clk/sunxi/Makefile
@@ -15,6 +15,7 @@ obj-y += clk-sun9i-core.o
 obj-y += clk-sun9i-mmc.o
 obj-y += clk-usb.o
 
+obj-$(CONFIG_MACH_SUN9I) += clk-sun8i-apb0.o
+
 obj-$(CONFIG_MFD_SUN6I_PRCM) += \
-   clk-sun6i-ar100.o clk-sun6i-apb0.o clk-sun6i-apb0-gates.o \
-   clk-sun8i-apb0.o
+   clk-sun6i-ar100.o clk-sun6i-apb0.o clk-sun6i-apb0-gates.o
diff --git a/drivers/clk/sunxi/clk-sun8i-apb0.c 
b/drivers/clk/sunxi/clk-sun8i-apb0.c
index 7ae5d2c2cde1..c1e2ac8f4b0d 100644
--- a/drivers/clk/sunxi/clk-sun8i-apb0.c
+++ b/drivers/clk/sunxi/clk-sun8i-apb0.c
@@ -17,13 +17,68 @@
 #include 
 #include 
 #include 
+#include 
 #include 
 
+static struct clk *sun8i_a23_apb0_register(struct device_node *node,
+  void __iomem *reg)
+{
+   const char *clk_name = node->name;
+   const char *clk_parent;
+   struct clk *clk;
+   int ret;
+
+   clk_parent = of_clk_get_parent_name(node, 0);
+   if (!clk_parent)
+   return ERR_PTR(-EINVAL);
+
+   of_property_read_string(node, "clock-output-names", _name);
+
+   /* The A23 APB0 clock is a standard 2 bit wide divider clock */
+   clk = clk_register_divider(NULL, clk_name, clk_parent, 0, reg,
+  0, 2, CLK_DIVIDER_POWER_OF_TWO, NULL);
+   if (IS_ERR(clk))
+   return clk;
+
+   ret = of_clk_add_provider(node, of_clk_src_simple_get, clk);
+   if (ret)
+   goto err_unregister;
+
+   return clk;
+
+err_unregister:
+   clk_unregister_divider(clk);
+
+   return ERR_PTR(ret);
+}
+
+static void sun8i_a23_apb0_setup(struct device_node *node)
+{
+   void __iomem *reg;
+   struct resource res;
+   struct clk *clk;
+
+   reg = of_io_request_and_map(node, 0, of_node_full_name(node));
+   if (IS_ERR(reg))
+   return;
+
+   clk = sun8i_a23_apb0_register(node, reg);
+   if (IS_ERR(clk))
+   goto err_unmap;
+
+   return;
+
+err_unmap:
+   iounmap(reg);
+   of_address_to_resource(node, 0, );
+   release_mem_region(res.start, resource_size());
+}
+CLK_OF_DECLARE(sun8i_a23_apb0, "allwinner,sun8i-a23-apb0-clk",
+  sun8i_a23_apb0_setup);
+
 static int sun8i_a23_apb0_clk_probe(struct platform_device *pdev)
 {
struct device_node *np = pdev->dev.of_node;
-   const char *clk_name = np->name;
-   const char *clk_parent;
struct resource *r;
void __iomem *reg;
struct clk *clk;
@@ -33,19 +88,11 @@ static int sun8i_a23_apb0_clk_probe(struct platform_device 
*pdev)
if (IS_ERR(reg))
return PTR_ERR(reg);
 
-   clk_parent = of_clk_get_parent_name(np, 0);
-   if (!clk_parent)
-   return -EINVAL;
-
-   of_property_read_string(np, "clock-output-names", _name);
-
-   /* The A23 APB0 clock is a standard 2 bit wide divider clock */
-   clk = clk_register_divider(>dev, clk_name, clk_parent, 0, reg,
-  0, 2, CLK_DIVIDER_POWER_OF_TWO, NULL);
+   clk = sun8i_a23_apb0_register(np, reg);
if (IS_ERR(clk))
return PTR_ERR(clk);
 
-   return of_clk_add_provider(np, of_clk_src_simple_get, clk);
+   return 0;
 }
 
 static const struct of_device_id sun8i_a23_apb0_clk_dt_ids[] = {
-- 
2.6.2

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[linux-sunxi] [PATCH v4 2/5] clk: sunxi: Add sun9i A80 apbs gates support

[Chen-Yu Tsai]

This patch adds support for the PRCM apbs clock gates found on the
Allwinner A80 SoC.

Signed-off-by: Chen-Yu Tsai 
---
 Documentation/devicetree/bindings/clock/sunxi.txt | 1 +
 drivers/clk/sunxi/clk-simple-gates.c  | 2 ++
 2 files changed, 3 insertions(+)

diff --git a/Documentation/devicetree/bindings/clock/sunxi.txt 
b/Documentation/devicetree/bindings/clock/sunxi.txt
index a94bb56a0e9e..b6859ed6913f 100644
--- a/Documentation/devicetree/bindings/clock/sunxi.txt
+++ b/Documentation/devicetree/bindings/clock/sunxi.txt
@@ -55,6 +55,7 @@ Required properties:
"allwinner,sun9i-a80-apb1-gates-clk" - for the APB1 gates on A80
"allwinner,sun6i-a31-apb2-gates-clk" - for the APB2 gates on A31
"allwinner,sun8i-a23-apb2-gates-clk" - for the APB2 gates on A23
+   "allwinner,sun9i-a80-apbs-gates-clk" - for the APBS gates on A80
"allwinner,sun5i-a13-mbus-clk" - for the MBUS clock on A13
"allwinner,sun4i-a10-mmc-clk" - for the MMC clock
"allwinner,sun9i-a80-mmc-clk" - for mmc module clocks on A80
diff --git a/drivers/clk/sunxi/clk-simple-gates.c 
b/drivers/clk/sunxi/clk-simple-gates.c
index 0214c6548afd..c8acc0612c15 100644
--- a/drivers/clk/sunxi/clk-simple-gates.c
+++ b/drivers/clk/sunxi/clk-simple-gates.c
@@ -140,6 +140,8 @@ CLK_OF_DECLARE(sun9i_a80_apb0, 
"allwinner,sun9i-a80-apb0-gates-clk",
   sunxi_simple_gates_init);
 CLK_OF_DECLARE(sun9i_a80_apb1, "allwinner,sun9i-a80-apb1-gates-clk",
   sunxi_simple_gates_init);
+CLK_OF_DECLARE(sun9i_a80_apbs, "allwinner,sun9i-a80-apbs-gates-clk",
+  sunxi_simple_gates_init);
 
 static const int sun4i_a10_ahb_critical_clocks[] __initconst = {
14, /* ahb_sdram */
-- 
2.6.2

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[linux-sunxi] [PATCH v4 5/5] ARM: dts: sun9i: Add TODO comments for the main and low power clocks

[Chen-Yu Tsai]

The main (24MHz) clock on the A80 is configurable via the PRCM address
space. The low power/speed (32kHz) clock is from an external chip, the
AC100.

Signed-off-by: Chen-Yu Tsai 
---
 arch/arm/boot/dts/sun9i-a80.dtsi | 18 ++
 1 file changed, 18 insertions(+)

diff --git a/arch/arm/boot/dts/sun9i-a80.dtsi b/arch/arm/boot/dts/sun9i-a80.dtsi
index a4ce348c0831..eb69a62f6bc4 100644
--- a/arch/arm/boot/dts/sun9i-a80.dtsi
+++ b/arch/arm/boot/dts/sun9i-a80.dtsi
@@ -128,6 +128,17 @@
 */
ranges = <0 0 0 0x2000>;
 
+   /*
+* This clock is actually configurable from the PRCM address
+* space. The external 24M oscillator can be turned off, and
+* the clock switched to an internal 16M RC oscillator. Under
+* normal operation there's no reason to do this, and the
+* default is to use the external good one, so just model this
+* as a fixed clock. Also it is not entirely clear if the
+* osc24M mux in the PRCM affects the entire clock tree, which
+* would also throw all the PLL clock rates off, or just the
+* downstream clocks in the PRCM.
+*/
osc24M: osc24M_clk {
#clock-cells = <0>;
compatible = "fixed-clock";
@@ -135,6 +146,13 @@
clock-output-names = "osc24M";
};
 
+   /*
+* The 32k clock is from an external source, normally the
+* AC100 codec/RTC chip. This clock is by default enabled
+* and clocked at 32768 Hz, from the oscillator connected
+* to the AC100. It is configurable, but no such driver or
+* bindings exist yet.
+*/
osc32k: osc32k_clk {
#clock-cells = <0>;
compatible = "fixed-clock";
-- 
2.6.2

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[linux-sunxi] [PATCH v4 4/5] ARM: dts: sun9i: Add A80 PRCM clocks and reset control nodes

[Chen-Yu Tsai]

This adds the supported PRCM clocks and reset controls to the A80 dtsi.
The DAUDIO module clocks are not supported yet.

Also update clock and reset phandles for r_uart.

Signed-off-by: Chen-Yu Tsai 
---
 arch/arm/boot/dts/sun9i-a80.dtsi | 79 +++-
 1 file changed, 78 insertions(+), 1 deletion(-)

diff --git a/arch/arm/boot/dts/sun9i-a80.dtsi b/arch/arm/boot/dts/sun9i-a80.dtsi
index 1118bf5cc4fb..a4ce348c0831 100644
--- a/arch/arm/boot/dts/sun9i-a80.dtsi
+++ b/arch/arm/boot/dts/sun9i-a80.dtsi
@@ -164,6 +164,14 @@
 "usb_phy2", "usb_hsic_12M";
};
 
+   pll3: clk@0608 {
+   /* placeholder until implemented */
+   #clock-cells = <0>;
+   compatible = "fixed-clock";
+   clock-rate = <0>;
+   clock-output-names = "pll3";
+   };
+
pll4: clk@060c {
#clock-cells = <0>;
compatible = "allwinner,sun9i-a80-pll4-clk";
@@ -350,6 +358,68 @@
"apb1_uart2", "apb1_uart3",
"apb1_uart4", "apb1_uart5";
};
+
+   cpus_clk: clk@08001410 {
+   compatible = "allwinner,sun9i-a80-cpus-clk";
+   reg = <0x08001410 0x4>;
+   #clock-cells = <0>;
+   clocks = <>, <>, <>, <>;
+   clock-output-names = "cpus";
+   };
+
+   ahbs: ahbs_clk {
+   compatible = "fixed-factor-clock";
+   #clock-cells = <0>;
+   clock-div = <1>;
+   clock-mult = <1>;
+   clocks = <_clk>;
+   clock-output-names = "ahbs";
+   };
+
+   apbs: clk@0800141c {
+   compatible = "allwinner,sun8i-a23-apb0-clk";
+   reg = <0x0800141c 0x4>;
+   #clock-cells = <0>;
+   clocks = <>;
+   clock-output-names = "apbs";
+   };
+
+   apbs_gates: clk@08001428 {
+   compatible = "allwinner,sun9i-a80-apbs-gates-clk";
+   reg = <0x08001428 0x4>;
+   #clock-cells = <1>;
+   clocks = <>;
+   clock-indices = <0>, <1>,
+   <2>, <3>,
+   <4>, <5>,
+   <6>, <7>,
+   <12>, <13>,
+   <16>, <17>,
+   <18>, <20>;
+   clock-output-names = "apbs_pio", "apbs_ir",
+   "apbs_timer", "apbs_rsb",
+   "apbs_uart", "apbs_1wire",
+   "apbs_i2c0", "apbs_i2c1",
+   "apbs_ps2_0", "apbs_ps2_1",
+   "apbs_dma", "apbs_i2s0",
+   "apbs_i2s1", "apbs_twd";
+   };
+
+   r_1wire_clk: clk@08001450 {
+   reg = <0x08001450 0x4>;
+   #clock-cells = <0>;
+   compatible = "allwinner,sun4i-a10-mod0-clk";
+   clocks = <>, <>;
+   clock-output-names = "r_1wire";
+   };
+
+   r_ir_clk: clk@08001454 {
+   reg = <0x08001454 0x4>;
+   #clock-cells = <0>;
+   compatible = "allwinner,sun4i-a10-mod0-clk";
+   clocks = <>, <>;
+   clock-output-names = "r_ir";
+   };
};
 
soc {
@@ -764,13 +834,20 @@
interrupts = ;
};
 
+   apbs_rst: reset@080014b0 {
+   reg = <0x080014b0 0x4>;
+   compatible = "allwinner,sun6i-a31-clock-reset";
+   #reset-cells = <1>;
+   };
+
r_uart: serial@08002800 {
compatible = "snps,dw-apb-uart";
reg = <0x08002800 0x400>;
interrupts = ;
reg-shift = <2>;
reg-io-width = <4>;
-   clocks = <>;
+   clocks = <_gates 4>;
+   resets = <_rst 4>;
status = "disabled";
};
};
-- 
2.6.2

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Re: [linux-sunxi] Requesting Help on a USD15, Allwinner Quadcore 1.2Ghz 64-bit A53 Hardware

[KH Goh]

Hi John,
Thanks for the memory size suggestion. This is the area that we will 
definitely look in to it.  Will update the group when we have more info on 
it.

Regards,
KH Goh

On Saturday, November 28, 2015 at 10:24:51 PM UTC+8, John S wrote:
>
> > Please refer to pine64.com for more detail on the hardware 
> specification.
>
> I supposeI missed it but I didn't find the kinds of things people working 
> on U-Boot or Linux etc might need, such as full (English) documentation and 
> complete schematics.  I hope I just missed them and that they are 
> available, now, and do not require any NDA (non-disclosure agreement).
>
> BTW, I expect more than 1GB RAM would be useful as an option.
>
> John
>

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Re: [linux-sunxi] Requesting Help on a USD15, Allwinner Quadcore 1.2Ghz 64-bit A53 Hardware

[KH Goh]

Hi Luc Verhaegen,
Thanks for your advise, we get what you are saying. From our side, we are 
trying out best to work closely with the open source community and trying 
to do our part as much as possibly can.  We are committed to make our 
hardware and software as open as possible, but subject to the license 
agreement that place upon us by our supplier. But by having a good 
relationship between us and the supplier, I think we should be able to iron 
out most of the problem.

In terms of the hardware, at the moment we are having 2 unit of Pine64 
Engineering board (Please refer here for the spec http://pine64.com/product 
), and would like to donate it to the community for further evaluation and 
testing. Since we are a newcomer in this community, we would like you to 
advise us on who and where should we send the 2 board to.

Thanks for your advise and appreciate your kind assistance.
Regards,
KH Goh


On Saturday, November 28, 2015 at 9:01:31 PM UTC+8, Luc Verhaegen wrote:
>
> On Sat, Nov 28, 2015 at 12:38:16AM -0800, khg...@gmail.com  
> wrote: 
> > Hi, 
> > We are a group of people currently trying to come out with a very low 
> > cost single board computer, by making use of Allwinner Quadcore 1.2Ghz 
> > 64-bit A53 CPU. The target costing for the single board computer is 
> > USD15. The hardware will have a 4K HDMI video output and on board 
> > ethernet connection. Further more, each board will has its own unique 
> > MAC address. The objective for this project is to allow individual, 
> > having the opportunity to learn IT knowledge with a friction of the 
> > cost. Please refer to pine64.com for more detail on the hardware 
> > specification. 
> > 
> > Currently, the hardware development on the board is almost ready. And 
> > with us, is the full Linux BSP with the true 64bit compiler. Due to 
> > budget constrain and our limited know-how in Linux, We would like to 
> > request the help from this community to bring up the Linux into a full 
> > function Ubuntu desktop, thus allow the user to truly owning a fully 
> > function open source computer with just a friction of the cost. 
> > 
> > As for the hardware itself, currently we are in the mist of building 
> > some sample board to allow any interested developer to work on it. 
> > 
> > Thanks and Regard, 
> > KH Goh 
>
> Hi, 
>
> Thanks for contacting the canonical source of most things 
> sunxi/allwinner before actually launching your kickstarter campaign. 
>
> This is the first time since the original cubieboard that such a thing 
> has happened. Many companies with similar products only afterwards find 
> out to what extent they do depend on the linux-sunxi community, and then 
> change their story in either direction. Often the work done by the 
> people of the linux-sunxi community gets used directly, cloned/forked, 
> and nothing is ever given back. 
>
> As you can see, we (and while i do not speak for all of us, i know that 
> i am not alone here) are sceptical about whoever approaches us like 
> this, especially when one of the first statements is "budget 
> constraints". You cannot expect the linux-sunxi community to do your 
> work for you for free. 
>
> You should however donate boards to many known and active linux-sunxi 
> developers, but for that you must not expect anything in return. 
> Whatever then happens, happens, or it doesn't. The results are usually 
> quite positive, especially given the limited cost of said boards, but it 
> will hardly ever consist of full support for your product (especially 
> when based on a new SoC variant). 
>
> If you wish to have more complete support, you can always try to hire 
> known linux-sunxi developers directly, or work with those members of our 
> community who do contracting. The choice is up to you. 
>
> Thanks for reaching out to us before launching your marketing campaign, 
> i hope that your collaboration with linux-sunxi ends up being just as 
> fruitful as your kickstarter. 
>
> Luc Verhaegen. 
>

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