[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.