[Arm-dev] Gigabyte MP30-AR0

[Michael Howard]

On 12/03/2016 12:36, Gordan Bobic wrote:
> On 12/03/16 12:04, Gordan Bobic wrote:
>> On 22/02/16 05:02, Phong Vo wrote:
>>> Hi,
>>>
>>> The mp30ar0 U-boot has some special memory mapping to accommodate 
>>> 32-bit
>>> DMA.
>>> Please download the tar ball again - I've updated the tianocore UHP for
>>> this.
>>>
>>> https://dl.dropboxusercontent.com/u/20403943/mp30ar0_tianocore_binaries.ta 
>>>
>>>
>>> r.xz
>>>
>>> Updated instruction for U-boot chain loading:
>>> MP30AR0# setenv num_cores 1
>>> MP30AR0# setenv DDRBASE2G 1
>>> MP30AR0# save; reset
>>
>> I just did this part and it seems to have semi-bricked the board. It
>> gets as far as:
>> ===
>> U-Boot 2013.04 (Jun 02 2015 - 10:54:10)ooREV: 1.15.01-F05 ( uart0 )
>> ===
>>
>> and it just stops.
>>
>> That seems a bit odd from just changing one variable and adding another,
>> I didn't think those were supposed to be read until after the boot
>> interruption prompt.
>>
>> On to unbricking procedure I go...
>
> Which gets stuck at the exct same point during the boot, only this 
> time it looks like u-boot is a little newer:
>
> ===
> U-Boot 2013.04-mp30ar0_sw_1.18.04 (Sep 02 2015 - 16:38:06) REV: F06b ( 
> uart0 )
> ===
>
> Also tried clearing the CMOS, which made no difference.
>
Yes, there is a newer u-boot than that shipped. I have used both but I 
don't remember any advantages with the newer one.

I had an issue whereby I was using the serial console, but had a usb 
keyboard attached the the MP30 , and the output diverted to the VGA 
output. Very odd. Hook up a monitor if you haven't done so, just to check.

-- 
Mike Howard