[U-Boot] booting issue with Atmel SAMA5D31 Evaluation kit

[Ron Eggler]

Hi Bo,

Okay here we have some more information! Great!

On December 16, 2013 11:42:11 AM Bo Shen wrote:
> Hi Ron,
> 
> On 12/16/2013 11:19 AM, Ron Eggler wrote:
> >  > First, please check the console output, it should be BootROM.
> >  > 
> >  > Second, which Linux distribution you are using? If use ubuntu 12.04,
> >  > you
> >  > 
> >  > can see a /dev/ttyACMx device, sam-ba will access this device.
> > 
> > I'm using Kubuntu 13.10 and I connect to the serial port with
> > 
> > "screen /dev/ttyACM0 115200"
> 
> I will try to make something clear.
> On sama5d3xek board, there are two USB device connectors, one is J14 (on
> the right side, near JTAG connector) is used for console. The other is
> J20 (on the upper side, near USB host connector) is USB device port for
> sama5 SoC.
> 
> So, bootup information, include BootROM are come out from J14. When you
> try to flash using sam-ba, you should connect J20.
> 
> In summary, please take the following steps to re-flash:
> 1. power up the board.
> 2. connect J14 as console. (minicom, screen as you prefer)
> 3. combo key, to check whether BootROM come out from console.
Upon keuy combo (hold PB4 while pressing PB1) nothing appears on console (J14)
> 4. connect J20, and check whether /dev/ttyACMx is accessible.
I connect to J20 but no /dev/ttyACMx is available

do you have any alternative suggestions for this behavior?

Thanks,
Ron

> 5. start sam-ba with root permission.
> 
> > but upon power cycle, nothing comes through, i.e. the screen is just
> > black also, the kit came with an LCD screen, that a showed a little demo
> > app but that's gone since the key combo Andreas had suggested and the
> > screen just stays blank so I assume that the flash got completely
> > erased...
> > 
> > Any assistance to get that kit booting again is appreciated!
> > 
> > Thanks,
> > 
> > Ron
> 
> Best Regards,
> Bo Shen

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