[U-Boot] Newbie SPL question for socfpga_sockit

[George Broz]

On 20 March 2016 at 08:55, Dinh Nguyen <dinguyen at opensource.altera.com> wrote:
>
>
> On 03/16/2016 08:35 PM, Marek Vasut wrote:
>>>
>>> Does this work for anybody else?
>>> Is it in anyone's experience that these (cheaper) Terasic
>>> eval boards are generally out of spec?
>>>
>>> Is there a way to relax the calibration parameters? the USB parameters?
>>>
>>> Would it help if I posted debug output?
>>
>> Sorry for the late reply, I am horribly overloaded now. I asked someone
>> in #u-boot who has the DE0-NANO-SOC board to test latest u-boot/master
>> on it and it apparently worked for him. I should get some more feedback
>> in the morning [ see http://pastebin.com/CM1QJGnh ] .
>>
>> Still, this is getting real creepy. You are the second person who is
>> complaining about misbehavior of terasic boards with mainline u-boot
>> and whatever I do, I cannot replicate this.
>>
>> I am at least CCing the Altera guys. Sorry I have no better suggestion
>> for you :(
>
> I don't have any problems with mainline U-Boot and SPL on my DE0-NANO-BOARD:
>
> U-Boot SPL 2016.03-00307-ge4fb863 (Mar 20 2016 - 10:37:13)
> drivers/ddr/altera/sequencer.c: Preparing to start memory calibration
> drivers/ddr/altera/sequencer.c: CALIBRATION PASSED
> drivers/ddr/altera/sequencer.c: Calibration complete
> Trying to boot from MMC
>
>
> U-Boot 2016.03-00307-ge4fb863 (Mar 20 2016 - 10:37:13 -0500)
>
> CPU:   Altera SoCFPGA Platform
> FPGA:  Altera Cyclone V, SE/A4 or SX/C4, version 0x0
> BOOT:  SD/MMC Internal Transceiver (3.0V)
>        Watchdog enabled
> I2C:   ready
> DRAM:  1 GiB
> MMC:   dwmmc0 at ff704000: 0
> In:    serial
> Out:   serial
> Err:   serial
> Model: Terasic DE0-Nano(Atlas)
> Net:   eth0: ethernet at ff702000
> Hit any key to stop autoboot:  0
> =>
>
> Sorry, I know that doesn't help. So let's walk through my workflow. I am
> not using any Altera tools when I build.
>
> $make socfpga_de0_nano_soc_defconfig
> $make u-boot-with-spl.sfp
> $dd if=u-boot-with-spl.sfp of=/dev/sdb3
>
> My gcc is: arm-linux-gnueabi-gcc (Ubuntu/Linaro 4.7.3-12ubuntu1) 4.7.3
>
> Has the board ever worked for you at all? Can you try this image:
>
> https://rocketboards.org/foswiki/view/Documentation/AtlasSoCSdCardImage
>
> Dinh
>
>

Hi All,

Was away...sorry... back again.

Dinh - my workflow is exactly as yours is above.

I've used several toolchains - always the same result.

The first de0_nano_soc board I bought has no problem booting from the
factory supplied image:

   SPL: U-Boot SPL 2013.01.01 (Dec 29 2014 - 15:29:15)
   Image: U-Boot 2013.01.01 (Dec 30 2014 - 12:07:34)

and it even works with some USB sticks.

But if I build a new SPL/image with workflow above using v2016.03

(git clone git://git.denx.de/u-boot.git u-boot/ or git clone
http://git.denx.de/u-boot.git u-boot/)

then I get the intermittent failing memory calibration and no USB
(dwc_otg_core_host_init: Timeout!...)

On my sockit board the memory calibration fails every time.



So I ordered and received a _second_ de0_nano_soc board.

The same SPL/image that was intermittently failing on the first board
works on the second board. I have not seen it fail after 20 reboots.

Unfortunately, USB behaves the same (dwc_otg_core_host_init: Timeout!...)

Not sure what that means... marginal boards from Terasic? Calibration
tests/parameters too stringent?

--George