[U-Boot] U-Boot SPL 2016.09-rc1 on NTC C.H.I.P.

[U-Boot] U-Boot SPL 2016.09-rc1 on NTC C.H.I.P.

[Marcus Glocker]

Hello,

While U-Boot SPL 2015.10 works fine on my allwinner,sun5i-r8 board I
face following issue with U-Boot SPL 2016.09-rc1 on it:

	bash-4.3# cu -l /dev/cuaU0 -s 115200
	Connected to /dev/cuaU0 (speed 115200)

	U-Boot SPL 2016.09-rc1 (Jul 31 2016 - 16:37:00)
	DRAM: 512 MiB
	CPU: 1008000000Hz, AXI/AHB/APB: 3/2/2
	Trying to boot from NAND
	### ERROR ### Please RESET the board ###

Any ideas what change did cause this or where to start looking after?

Thanks,
Marcus

-- 
[ Marcus Glocker, marcus at nazgul.ch, http://nazgul.ch                   ]

[U-Boot] U-Boot SPL 2016.09-rc1 on NTC C.H.I.P.

[Lukasz Majewski]

Hi Marcus,

> Hello,
> 
> While U-Boot SPL 2015.10 works fine on my allwinner,sun5i-r8 board I
> face following issue with U-Boot SPL 2016.09-rc1 on it:
> 
> 	bash-4.3# cu -l /dev/cuaU0 -s 115200
> 	Connected to /dev/cuaU0 (speed 115200)
> 
> 	U-Boot SPL 2016.09-rc1 (Jul 31 2016 - 16:37:00)
> 	DRAM: 512 MiB
> 	CPU: 1008000000Hz, AXI/AHB/APB: 3/2/2
> 	Trying to boot from NAND
> 	### ERROR ### Please RESET the board ###
> 
> Any ideas what change did cause this or where to start looking after?

I do not have any idea. What I can only recommend - please use last
working release (2015.10) and perform git bisect.


> 
> Thanks,
> Marcus
> 

Best regards,
Lukasz Majewski
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[U-Boot] U-Boot SPL 2016.09-rc1 on NTC C.H.I.P.

[Tom Rini]

On Sat, Aug 20, 2016 at 07:26:19AM +0200, Marcus Glocker wrote:
> Hello,
> 
> While U-Boot SPL 2015.10 works fine on my allwinner,sun5i-r8 board I
> face following issue with U-Boot SPL 2016.09-rc1 on it:
> 
> 	bash-4.3# cu -l /dev/cuaU0 -s 115200
> 	Connected to /dev/cuaU0 (speed 115200)
> 
> 	U-Boot SPL 2016.09-rc1 (Jul 31 2016 - 16:37:00)
> 	DRAM: 512 MiB
> 	CPU: 1008000000Hz, AXI/AHB/APB: 3/2/2
> 	Trying to boot from NAND
> 	### ERROR ### Please RESET the board ###
> 
> Any ideas what change did cause this or where to start looking after?

You're not talking about mainline when you say v2015.10, are you?  IIRC
the current state of CHIP support in mainline is that we don't have NAND
support so it's not useful just yet.

-- 
Tom
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[U-Boot] U-Boot SPL 2016.09-rc1 on NTC C.H.I.P.

[Marcus Glocker]

On Sat, Aug 20, 2016 at 03:05:38PM -0400, Tom Rini wrote:

> On Sat, Aug 20, 2016 at 07:26:19AM +0200, Marcus Glocker wrote:
> > Hello,
> > 
> > While U-Boot SPL 2015.10 works fine on my allwinner,sun5i-r8 board I
> > face following issue with U-Boot SPL 2016.09-rc1 on it:
> > 
> > 	bash-4.3# cu -l /dev/cuaU0 -s 115200
> > 	Connected to /dev/cuaU0 (speed 115200)
> > 
> > 	U-Boot SPL 2016.09-rc1 (Jul 31 2016 - 16:37:00)
> > 	DRAM: 512 MiB
> > 	CPU: 1008000000Hz, AXI/AHB/APB: 3/2/2
> > 	Trying to boot from NAND
> > 	### ERROR ### Please RESET the board ###
> > 
> > Any ideas what change did cause this or where to start looking after?
> 
> You're not talking about mainline when you say v2015.10, are you?  IIRC
> the current state of CHIP support in mainline is that we don't have NAND
> support so it's not useful just yet.

You sure?  When I read to commit history correctly SPL NAND support for
sunxi has been introduced 2015-08:

	2015-08-08 	Piotr Zierhoffer
	    sunxi: nand: Add basic sunxi NAND driver for SPL with... 

I'm booting the C.H.I.P. with mainline SPL 2015.10 and let it load
U-Boot 2016.09-rc1:

	U-Boot SPL 2015.10 (Dec 22 2015 - 20:46:00)
	DRAM: 512 MiB
	CPU: 1008000000Hz, AXI/AHB/APB: 3/2/2


	U-Boot 2016.09-rc1 (Jul 31 2016 - 16:37:00 +0200) Allwinner Technology

	CPU:   Allwinner A13 (SUN5I)
	Model: NextThing C.H.I.P.
	I2C:   ready
	DRAM:  512 MiB
	NAND:  8192 MiB
	Using default environment

My question still is if somebody knows why SPL 2016.09-rc1 fails?  Maybe
I should revert the changes step by step and see which one broke it.

[U-Boot] U-Boot SPL 2016.09-rc1 on NTC C.H.I.P.

[Hans de Goede]

Hi,

On 21-08-16 11:01, Marcus Glocker wrote:
> On Sat, Aug 20, 2016 at 03:05:38PM -0400, Tom Rini wrote:
>
>> On Sat, Aug 20, 2016 at 07:26:19AM +0200, Marcus Glocker wrote:
>>> Hello,
>>>
>>> While U-Boot SPL 2015.10 works fine on my allwinner,sun5i-r8 board I
>>> face following issue with U-Boot SPL 2016.09-rc1 on it:
>>>
>>> 	bash-4.3# cu -l /dev/cuaU0 -s 115200
>>> 	Connected to /dev/cuaU0 (speed 115200)
>>>
>>> 	U-Boot SPL 2016.09-rc1 (Jul 31 2016 - 16:37:00)
>>> 	DRAM: 512 MiB
>>> 	CPU: 1008000000Hz, AXI/AHB/APB: 3/2/2
>>> 	Trying to boot from NAND
>>> 	### ERROR ### Please RESET the board ###
>>>
>>> Any ideas what change did cause this or where to start looking after?
>>
>> You're not talking about mainline when you say v2015.10, are you?  IIRC
>> the current state of CHIP support in mainline is that we don't have NAND
>> support so it's not useful just yet.
>
> You sure?

Yes, for one mainline u-boot configs/CHIP_defconfig does not
select SPL nand support...

We have some code in mainline u-boot but the nand code is not complete
so it never got enabled. Boris Brezillon is working on this and he
is making good progress.

Boris what is the status on this ?

Regards,

Hans

[U-Boot] U-Boot SPL 2016.09-rc1 on NTC C.H.I.P.

[Wolfgang Denk]

Dear Marcus,

In message <20160821090110.GA7497@gollum.nazgul.ch> you wrote:
> 
> My question still is if somebody knows why SPL 2016.09-rc1 fails?  Maybe
> I should revert the changes step by step and see which one broke it.

This is a job which can be automated using tbot...

Best regards,

Wolfgang Denk

-- 
DENX Software Engineering GmbH,      Managing Director: Wolfgang Denk
HRB 165235 Munich, Office: Kirchenstr.5, D-82194 Groebenzell, Germany
Phone: (+49)-8142-66989-10 Fax: (+49)-8142-66989-80 Email: wd at denx.de
It is not best to swap horses while crossing the river.
- Abraham Lincoln

[U-Boot] U-Boot SPL 2016.09-rc1 on NTC C.H.I.P.

[Boris Brezillon]

Hi,

On Sun, 21 Aug 2016 12:03:19 +0200
Hans de Goede <hdegoede@redhat.com> wrote:

> Hi,
> 
> On 21-08-16 11:01, Marcus Glocker wrote:
> > On Sat, Aug 20, 2016 at 03:05:38PM -0400, Tom Rini wrote:
> >  
> >> On Sat, Aug 20, 2016 at 07:26:19AM +0200, Marcus Glocker wrote:  
> >>> Hello,
> >>>
> >>> While U-Boot SPL 2015.10 works fine on my allwinner,sun5i-r8 board I
> >>> face following issue with U-Boot SPL 2016.09-rc1 on it:
> >>>
> >>> 	bash-4.3# cu -l /dev/cuaU0 -s 115200
> >>> 	Connected to /dev/cuaU0 (speed 115200)
> >>>
> >>> 	U-Boot SPL 2016.09-rc1 (Jul 31 2016 - 16:37:00)
> >>> 	DRAM: 512 MiB
> >>> 	CPU: 1008000000Hz, AXI/AHB/APB: 3/2/2
> >>> 	Trying to boot from NAND
> >>> 	### ERROR ### Please RESET the board ###
> >>>
> >>> Any ideas what change did cause this or where to start looking after?  

Markus, can you share your .config?
I tested the different bits while submitting the NAND driver and the
SPL NAND driver improvements and it was working fine.
I'll try to test 2016.09-rc1 tomorrow.

> >>
> >> You're not talking about mainline when you say v2015.10, are you?  IIRC
> >> the current state of CHIP support in mainline is that we don't have NAND
> >> support so it's not useful just yet.  

That's not the case anymore (the sunxi_nand driver has been merged
recently and is part of 2016.09-rc1). Or at least, you should now be
able to boot uboot from NAND (SPL
+ uboot loaded from NAND).
For the rest (loading a kernel from NAND within u-boot), it's another
story. It should work, but as you might already know, MLC NANDs are
unreliable. We're working on UBI to make those NANDs usable in a
reliable way, but those bits haven't been mainlined in Linux yet
(actually it's not even ready for submission). This is why I want to
keep NAND support disabled on all setup embedding an MLC NAND. AFAIK,
there's not sunxi board with MLC NANDs, so this means disabling NAND on
all sunxi configs.

> >
> > You sure?

The SPL driver was present in 2015.10, but I still doubt you were using
a mainline version of u-boot. It's probably flashed with [1].

> 
> Yes, for one mainline u-boot configs/CHIP_defconfig does not
> select SPL nand support...

That's what I was talking about. Not sure I want to enable booting from
NAND by default until the whole chain (SPL -> UBOOT -> Linux) is really
reliable.

> 
> We have some code in mainline u-boot but the nand code is not complete
> so it never got enabled. Boris Brezillon is working on this and he
> is making good progress.
> 
> Boris what is the status on this ?

Well, the NAND part is ready (the sunxi_nand driver is there and has
been tested, and the SPL driver has been recently improved to
auto-detect the ECC config). The real problem is MLC support in general,
and this is not only impacting sunxi platforms, but all platforms
booting from and MLC NAND.
We're working on this aspect with Richard, and will hopefully have
something to share/submit by the end of the year.

Regards,

Boris

[1]https://github.com/NextThingCo/CHIP-u-boot/tree/nextthing/2015.10/next

[U-Boot] U-Boot SPL 2016.09-rc1 on NTC C.H.I.P.

[Boris Brezillon]

+Glaucio who is facing the same problem but on a cubieboard2.

On Sun, 21 Aug 2016 16:14:39 +0200
Boris Brezillon <boris.brezillon@free-electrons.com> wrote:

> Hi,
> 
> On Sun, 21 Aug 2016 12:03:19 +0200
> Hans de Goede <hdegoede@redhat.com> wrote:
> 
> > Hi,
> > 
> > On 21-08-16 11:01, Marcus Glocker wrote:  
> > > On Sat, Aug 20, 2016 at 03:05:38PM -0400, Tom Rini wrote:
> > >    
> > >> On Sat, Aug 20, 2016 at 07:26:19AM +0200, Marcus Glocker wrote:    
> > >>> Hello,
> > >>>
> > >>> While U-Boot SPL 2015.10 works fine on my allwinner,sun5i-r8 board I
> > >>> face following issue with U-Boot SPL 2016.09-rc1 on it:
> > >>>
> > >>> 	bash-4.3# cu -l /dev/cuaU0 -s 115200
> > >>> 	Connected to /dev/cuaU0 (speed 115200)
> > >>>
> > >>> 	U-Boot SPL 2016.09-rc1 (Jul 31 2016 - 16:37:00)
> > >>> 	DRAM: 512 MiB
> > >>> 	CPU: 1008000000Hz, AXI/AHB/APB: 3/2/2
> > >>> 	Trying to boot from NAND
> > >>> 	### ERROR ### Please RESET the board ###
> > >>>
> > >>> Any ideas what change did cause this or where to start looking after?    
> 
> Markus, can you share your .config?
> I tested the different bits while submitting the NAND driver and the
> SPL NAND driver improvements and it was working fine.
> I'll try to test 2016.09-rc1 tomorrow.

Just tried to boot a mainline uboot on my CHIP and it boots fine [1].
Here is my .config [2], can you compare yours with this one?

Can you also detail how you flash the images?

Thanks,

Boris

[1]http://code.bulix.org/xr8n68-105114
[2]http://code.bulix.org/hft09x-105116

[U-Boot] U-Boot SPL 2016.09-rc1 on NTC C.H.I.P.

[Glaucio Klipel]

Hi all,

so, the difference between the 2 .config as it follows[1] and the .config
as is[2].

And the procedures:

# dd if=u-boot-dtb.bin of=/root/u-boot-dtb.bin bs=2M conv=sync
# sunxi-nand-image-builder -p 8192 -o 640 -e 0x200000 -s -b -u 4096 -c
64/1024 spl/sunxi-spl.bin /root/sunxi-spl.bin (BUILDING IMAGE FOR HYNIX
H27UBG8T2BTR-BC, VALUES FROM DATASHEET)

# for a in $(echo {0..3}); do flash_erase /dev/mtd${a} 0 0; done
Erasing 2048 Kibyte @ 0 -- 100 % complete
Erasing 2048 Kibyte @ 0 -- 100 % complete
Erasing 2048 Kibyte @ 0 -- 100 % complete
Erasing 2048 Kibyte @ 0 -- 100 % complete

# nandwrite -o -n /dev/mtd0 sunxi-spl.bin
Writing data to block 0 at offset 0x0
# nandwrite -o -n /dev/mtd1 sunxi-spl.bin
Writing data to block 0 at offset 0x0
# nandwrite /dev/mtd2 u-boot-dtb.bin
Writing data to block 0 at offset 0x0
# nandwrite /dev/mtd3 u-boot-dtb.bin
Writing data to block 0 at offset 0x0

U-Boot SPL 2016.09-rc1-14223-gfcada3b-dirty (Aug 22 2016 - 23:45:03)
DRAM: 1024 MiB
CPU: 912000000Hz, AXI/AHB/APB: 3/2/2
Trying to boot from NAND
### ERROR ### Please RESET the board ###


I also added these lines to include/configs/sunxi_common.h[3]

With the u-boot-sunxi-with-spl.bin on a SD Card, NAND gets detected fine
and I can even boot from it.

If I add some traces in the middle of the code telling me the possible ECC
configs the SPL will try, it will print only one and then gets the error.
The stranger thing is that it will go no further in device detection to
boot, no MMC, SATA or LAN.

It produces spl/drivers/mtd/nand/sunxi_nand_spl.o, which I can see in
compilation process, later on that directory.

Hope this can help out!

Thanks in advance!


[1]http://pastebin.com/yVNV66x4
[2]http://pastebin.com/rzCDXvDt
[3]http://pastebin.com/zTC3Y1hS


2016-08-22 4:55 GMT-03:00 Boris Brezillon <
boris.brezillon@free-electrons.com>:

> +Glaucio who is facing the same problem but on a cubieboard2.
>
> On Sun, 21 Aug 2016 16:14:39 +0200
> Boris Brezillon <boris.brezillon@free-electrons.com> wrote:
>
> > Hi,
> >
> > On Sun, 21 Aug 2016 12:03:19 +0200
> > Hans de Goede <hdegoede@redhat.com> wrote:
> >
> > > Hi,
> > >
> > > On 21-08-16 11:01, Marcus Glocker wrote:
> > > > On Sat, Aug 20, 2016 at 03:05:38PM -0400, Tom Rini wrote:
> > > >
> > > >> On Sat, Aug 20, 2016 at 07:26:19AM +0200, Marcus Glocker wrote:
> > > >>> Hello,
> > > >>>
> > > >>> While U-Boot SPL 2015.10 works fine on my allwinner,sun5i-r8 board
> I
> > > >>> face following issue with U-Boot SPL 2016.09-rc1 on it:
> > > >>>
> > > >>>         bash-4.3# cu -l /dev/cuaU0 -s 115200
> > > >>>         Connected to /dev/cuaU0 (speed 115200)
> > > >>>
> > > >>>         U-Boot SPL 2016.09-rc1 (Jul 31 2016 - 16:37:00)
> > > >>>         DRAM: 512 MiB
> > > >>>         CPU: 1008000000Hz, AXI/AHB/APB: 3/2/2
> > > >>>         Trying to boot from NAND
> > > >>>         ### ERROR ### Please RESET the board ###
> > > >>>
> > > >>> Any ideas what change did cause this or where to start looking
> after?
> >
> > Markus, can you share your .config?
> > I tested the different bits while submitting the NAND driver and the
> > SPL NAND driver improvements and it was working fine.
> > I'll try to test 2016.09-rc1 tomorrow.
>
> Just tried to boot a mainline uboot on my CHIP and it boots fine [1].
> Here is my .config [2], can you compare yours with this one?
>
> Can you also detail how you flash the images?
>
> Thanks,
>
> Boris
>
> [1]http://code.bulix.org/xr8n68-105114
> [2]http://code.bulix.org/hft09x-105116
>

[U-Boot] U-Boot SPL 2016.09-rc1 on NTC C.H.I.P.

[Marcus Glocker]

On Mon, Aug 22, 2016 at 09:55:01AM +0200, Boris Brezillon wrote:

> +Glaucio who is facing the same problem but on a cubieboard2.
> 
> On Sun, 21 Aug 2016 16:14:39 +0200
> Boris Brezillon <boris.brezillon@free-electrons.com> wrote:
> 
> > Hi,
> > 
> > On Sun, 21 Aug 2016 12:03:19 +0200
> > Hans de Goede <hdegoede@redhat.com> wrote:
> > 
> > > Hi,
> > > 
> > > On 21-08-16 11:01, Marcus Glocker wrote:  
> > > > On Sat, Aug 20, 2016 at 03:05:38PM -0400, Tom Rini wrote:
> > > >    
> > > >> On Sat, Aug 20, 2016 at 07:26:19AM +0200, Marcus Glocker wrote:    
> > > >>> Hello,
> > > >>>
> > > >>> While U-Boot SPL 2015.10 works fine on my allwinner,sun5i-r8 board I
> > > >>> face following issue with U-Boot SPL 2016.09-rc1 on it:
> > > >>>
> > > >>> 	bash-4.3# cu -l /dev/cuaU0 -s 115200
> > > >>> 	Connected to /dev/cuaU0 (speed 115200)
> > > >>>
> > > >>> 	U-Boot SPL 2016.09-rc1 (Jul 31 2016 - 16:37:00)
> > > >>> 	DRAM: 512 MiB
> > > >>> 	CPU: 1008000000Hz, AXI/AHB/APB: 3/2/2
> > > >>> 	Trying to boot from NAND
> > > >>> 	### ERROR ### Please RESET the board ###
> > > >>>
> > > >>> Any ideas what change did cause this or where to start looking after?    
> > 
> > Markus, can you share your .config?
> > I tested the different bits while submitting the NAND driver and the
> > SPL NAND driver improvements and it was working fine.
> > I'll try to test 2016.09-rc1 tomorrow.
> 
> Just tried to boot a mainline uboot on my CHIP and it boots fine [1].
> Here is my .config [2], can you compare yours with this one?
> 
> Can you also detail how you flash the images?

Thanks for sharing your configuration!  Based on that I was able to
narrow down the configuration parameter which makes SPL 2016.09-rc1 now
work on my allwinner,sun5i-r8 board as well:

	+CONFIG_USE_PRIVATE_LIBGCC=n

When I don't set it explicitly I get 'CONFIG_USE_PRIVATE_LIBGCC=y' in
my .config.  Could it be that it was set to 'n' by default in previous
releases?

Thanks,
Marcus

[U-Boot] U-Boot SPL 2016.09-rc1 on NTC C.H.I.P.

[Boris Brezillon]

On Tue, 23 Aug 2016 20:05:59 +0200
Marcus Glocker <marcus@nazgul.ch> wrote:

> On Mon, Aug 22, 2016 at 09:55:01AM +0200, Boris Brezillon wrote:
> 
> > +Glaucio who is facing the same problem but on a cubieboard2.
> > 
> > On Sun, 21 Aug 2016 16:14:39 +0200
> > Boris Brezillon <boris.brezillon@free-electrons.com> wrote:
> >   
> > > Hi,
> > > 
> > > On Sun, 21 Aug 2016 12:03:19 +0200
> > > Hans de Goede <hdegoede@redhat.com> wrote:
> > >   
> > > > Hi,
> > > > 
> > > > On 21-08-16 11:01, Marcus Glocker wrote:    
> > > > > On Sat, Aug 20, 2016 at 03:05:38PM -0400, Tom Rini wrote:
> > > > >      
> > > > >> On Sat, Aug 20, 2016 at 07:26:19AM +0200, Marcus Glocker wrote:      
> > > > >>> Hello,
> > > > >>>
> > > > >>> While U-Boot SPL 2015.10 works fine on my allwinner,sun5i-r8 board I
> > > > >>> face following issue with U-Boot SPL 2016.09-rc1 on it:
> > > > >>>
> > > > >>> 	bash-4.3# cu -l /dev/cuaU0 -s 115200
> > > > >>> 	Connected to /dev/cuaU0 (speed 115200)
> > > > >>>
> > > > >>> 	U-Boot SPL 2016.09-rc1 (Jul 31 2016 - 16:37:00)
> > > > >>> 	DRAM: 512 MiB
> > > > >>> 	CPU: 1008000000Hz, AXI/AHB/APB: 3/2/2
> > > > >>> 	Trying to boot from NAND
> > > > >>> 	### ERROR ### Please RESET the board ###
> > > > >>>
> > > > >>> Any ideas what change did cause this or where to start looking after?      
> > > 
> > > Markus, can you share your .config?
> > > I tested the different bits while submitting the NAND driver and the
> > > SPL NAND driver improvements and it was working fine.
> > > I'll try to test 2016.09-rc1 tomorrow.  
> > 
> > Just tried to boot a mainline uboot on my CHIP and it boots fine [1].
> > Here is my .config [2], can you compare yours with this one?
> > 
> > Can you also detail how you flash the images?  
> 
> Thanks for sharing your configuration!  Based on that I was able to
> narrow down the configuration parameter which makes SPL 2016.09-rc1 now
> work on my allwinner,sun5i-r8 board as well:
> 
> 	+CONFIG_USE_PRIVATE_LIBGCC=n
> 
> When I don't set it explicitly I get 'CONFIG_USE_PRIVATE_LIBGCC=y' in
> my .config.  Could it be that it was set to 'n' by default in previous
> releases?

Yep. This is enabled by default on ARM platforms since 2016.07 (see
commit 91b86e21564d ("lib: Enable private libgcc by default")).
Now, this does not explain why the SPL code does not work correctly
with the internal libgcc implem.


> 
> Thanks,
> Marcus

[U-Boot] U-Boot SPL 2016.09-rc1 on NTC C.H.I.P.

[Marcus Glocker]

On Tue, Aug 23, 2016 at 09:41:21PM +0200, Boris Brezillon wrote:

> On Tue, 23 Aug 2016 20:05:59 +0200
> Marcus Glocker <marcus@nazgul.ch> wrote:
> 
> > On Mon, Aug 22, 2016 at 09:55:01AM +0200, Boris Brezillon wrote:
> > 
> > > +Glaucio who is facing the same problem but on a cubieboard2.
> > > 
> > > On Sun, 21 Aug 2016 16:14:39 +0200
> > > Boris Brezillon <boris.brezillon@free-electrons.com> wrote:
> > >   
> > > > Hi,
> > > > 
> > > > On Sun, 21 Aug 2016 12:03:19 +0200
> > > > Hans de Goede <hdegoede@redhat.com> wrote:
> > > >   
> > > > > Hi,
> > > > > 
> > > > > On 21-08-16 11:01, Marcus Glocker wrote:    
> > > > > > On Sat, Aug 20, 2016 at 03:05:38PM -0400, Tom Rini wrote:
> > > > > >      
> > > > > >> On Sat, Aug 20, 2016 at 07:26:19AM +0200, Marcus Glocker wrote:      
> > > > > >>> Hello,
> > > > > >>>
> > > > > >>> While U-Boot SPL 2015.10 works fine on my allwinner,sun5i-r8 board I
> > > > > >>> face following issue with U-Boot SPL 2016.09-rc1 on it:
> > > > > >>>
> > > > > >>> 	bash-4.3# cu -l /dev/cuaU0 -s 115200
> > > > > >>> 	Connected to /dev/cuaU0 (speed 115200)
> > > > > >>>
> > > > > >>> 	U-Boot SPL 2016.09-rc1 (Jul 31 2016 - 16:37:00)
> > > > > >>> 	DRAM: 512 MiB
> > > > > >>> 	CPU: 1008000000Hz, AXI/AHB/APB: 3/2/2
> > > > > >>> 	Trying to boot from NAND
> > > > > >>> 	### ERROR ### Please RESET the board ###
> > > > > >>>
> > > > > >>> Any ideas what change did cause this or where to start looking after?      
> > > > 
> > > > Markus, can you share your .config?
> > > > I tested the different bits while submitting the NAND driver and the
> > > > SPL NAND driver improvements and it was working fine.
> > > > I'll try to test 2016.09-rc1 tomorrow.  
> > > 
> > > Just tried to boot a mainline uboot on my CHIP and it boots fine [1].
> > > Here is my .config [2], can you compare yours with this one?
> > > 
> > > Can you also detail how you flash the images?  
> > 
> > Thanks for sharing your configuration!  Based on that I was able to
> > narrow down the configuration parameter which makes SPL 2016.09-rc1 now
> > work on my allwinner,sun5i-r8 board as well:
> > 
> > 	+CONFIG_USE_PRIVATE_LIBGCC=n
> > 
> > When I don't set it explicitly I get 'CONFIG_USE_PRIVATE_LIBGCC=y' in
> > my .config.  Could it be that it was set to 'n' by default in previous
> > releases?
> 
> Yep. This is enabled by default on ARM platforms since 2016.07 (see
> commit 91b86e21564d ("lib: Enable private libgcc by default")).
> Now, this does not explain why the SPL code does not work correctly
> with the internal libgcc implem.

Can you reproduce the issue when compiling on your side using the
internal libgcc?  Since here I'm using gcc-linaro to cross-compile it.

[U-Boot] U-Boot SPL 2016.09-rc1 on NTC C.H.I.P.

[Tom Rini]

On Tue, Aug 23, 2016 at 08:05:59PM +0200, Marcus Glocker wrote:
> On Mon, Aug 22, 2016 at 09:55:01AM +0200, Boris Brezillon wrote:
> 
> > +Glaucio who is facing the same problem but on a cubieboard2.
> > 
> > On Sun, 21 Aug 2016 16:14:39 +0200
> > Boris Brezillon <boris.brezillon@free-electrons.com> wrote:
> > 
> > > Hi,
> > > 
> > > On Sun, 21 Aug 2016 12:03:19 +0200
> > > Hans de Goede <hdegoede@redhat.com> wrote:
> > > 
> > > > Hi,
> > > > 
> > > > On 21-08-16 11:01, Marcus Glocker wrote:  
> > > > > On Sat, Aug 20, 2016 at 03:05:38PM -0400, Tom Rini wrote:
> > > > >    
> > > > >> On Sat, Aug 20, 2016 at 07:26:19AM +0200, Marcus Glocker wrote:    
> > > > >>> Hello,
> > > > >>>
> > > > >>> While U-Boot SPL 2015.10 works fine on my allwinner,sun5i-r8 board I
> > > > >>> face following issue with U-Boot SPL 2016.09-rc1 on it:
> > > > >>>
> > > > >>> 	bash-4.3# cu -l /dev/cuaU0 -s 115200
> > > > >>> 	Connected to /dev/cuaU0 (speed 115200)
> > > > >>>
> > > > >>> 	U-Boot SPL 2016.09-rc1 (Jul 31 2016 - 16:37:00)
> > > > >>> 	DRAM: 512 MiB
> > > > >>> 	CPU: 1008000000Hz, AXI/AHB/APB: 3/2/2
> > > > >>> 	Trying to boot from NAND
> > > > >>> 	### ERROR ### Please RESET the board ###
> > > > >>>
> > > > >>> Any ideas what change did cause this or where to start looking after?    
> > > 
> > > Markus, can you share your .config?
> > > I tested the different bits while submitting the NAND driver and the
> > > SPL NAND driver improvements and it was working fine.
> > > I'll try to test 2016.09-rc1 tomorrow.
> > 
> > Just tried to boot a mainline uboot on my CHIP and it boots fine [1].
> > Here is my .config [2], can you compare yours with this one?
> > 
> > Can you also detail how you flash the images?
> 
> Thanks for sharing your configuration!  Based on that I was able to
> narrow down the configuration parameter which makes SPL 2016.09-rc1 now
> work on my allwinner,sun5i-r8 board as well:
> 
> 	+CONFIG_USE_PRIVATE_LIBGCC=n
> 
> When I don't set it explicitly I get 'CONFIG_USE_PRIVATE_LIBGCC=y' in
> my .config.  Could it be that it was set to 'n' by default in previous
> releases?

What toolchain exactly are you using?  Thanks!

-- 
Tom
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