[MinnowBoard] 4GB Ram need pcb rerouting?

Wed Oct 26 02:14:44 UTC 2016

As Michael mentioned,  there are total 17 parameters you need to change for your new memory. Those parameters are determined by your on-board memory chips layout and memory datasheet. 
You could send us the datasheet of your memory and also tell us how many memory chips are there on your board. 

Thanks,
David  Wei                                 

-----Original Message-----
From: elinux-MinnowBoard [mailto:elinux-minnowboard-bounces at lists.elinux.org] On Behalf Of Grigory V. Korotov
Sent: Tuesday, October 25, 2016 11:08 PM
To: elinux-minnowboard at lists.elinux.org
Subject: Re: [MinnowBoard] 4GB Ram need pcb rerouting?

Hello again.
So i have looked into PlatformPkgIA32.dsc and found all things you 
mentioned below.
I just switched 
gVlvRefCodePkgTokenSpaceGuid.PcdMemoryParameterPatchable|TRUE and dont 
touched any other parameters to check that default values are working. 
But its not working, board wont boot.
When a placed back 
gVlvRefCodePkgTokenSpaceGuid.PcdMemoryParameterPatchable|FALSE 
everything works fine.
So i looking for valid MRC paramenetrs to make MBM2 working in standart 
configuration.
Could someone help me?

Thanks.

18.10.2016 17:58, Krau, Michael P пишет:
> In the release note of the Firmware, it provides instructions on how to change the PCD settings to change the memory configuration.  The instructions start with (and I quote):
>
> 6. How to configure memory parameters for new custom platforms
>     
>    If you want to configure memory parameters for your own platform, the following steps must be done before building the source tree.
>
>     (1)	Open the platform DSC file, which is <MyWorkspace>/ Vlv2TbltDevicePkg/ PlatformPkgIA32.dsc or <MyWorkspace>/ Vlv2TbltDevicePkg/ PlatformPkgX64.dsc depending on your which CPU architecture you prefer to support.
>
>     (2)  Search in the platform DSC file for following PCDs. There are a total of 17
>          PCDs for memory parameter configuration.
>          Taking PCD "VlvRefCodePkgTokenSpaceGuid.PcdMemoryParameterPatchable|FALSE",
>          for example,  the string before "|" represents PCD name, while the string
>          after "|" represents configurable PCD value.
>          And the comment, which is above the PCD and marked by #, provides the
>          usage of the PCD and valid selectable values.
>
>    #######################################################################################################
>    #
>    # Begin of MRC parameters
>    #
>    
>       .
>       .
>       .
>   (end quote)
>
> I will note that the list of the settings available in the DSC file are much more inclusive to the list in the release notes.  (also for space considerations, I have only provided you with the starting point in the release notes) The release notes were to point you in the right direction, the DSC provides all the available options.   There is a PCD to set Memory configuration size, among other memory features.
>
> Thank you,
>
>
> Michael Krau
>   
> -----Original Message-----
> From: elinux-MinnowBoard [mailto:elinux-minnowboard-bounces at lists.elinux.org] On Behalf Of Grigory V. Korotov
> Sent: Tuesday, October 18, 2016 4:01 AM
> To: MinnowBoard Development and Community Discussion <elinux-minnowboard at lists.elinux.org>
> Subject: Re: [MinnowBoard] 4GB Ram need pcb rerouting?
>
> Hello Berth-Olof,
> I got new version of my MBM based board with 4Gb ready hw mods. Thanks you again. At least it boots into uefi shell :) Could you please figure out point in uefi sources i should look into to get 4Gb config working? By now its only 2Gb available.
> Thanks
>
>
> 16.06.2016 12:23, Berth-Olof Bergman пишет:
>> Yes, you need to do changes in UEFI sources.
>>
>> Best regards,
>>
>> B-O
>>
>>> 16 juni 2016 kl. 10:10 skrev Grigory V. Korotov <grinux at mail.ru>:
>>>
>>> So i just need to connect A15 and solder higher dencity chips?
>>>
>>> Should i do any changes in uefi sources?
>>>
>>>
>>> 16.06.2016 9:52, Berth-Olof Bergman пишет:
>>>> It would be possible if DRAM A15 is connected, which it isn't on Minnowboard Max and Turbot. It would also be possible to use 8GB DRAM if channel 2 signals is connected. Our Minnowboard Quattro (4 cores) supports 1GB, 2GB, 4GB and 8 GB configurations. We also have an integrated nanoSSD on board, ranging from 8GB to 64GB.
>>>>
>>>> Best regards,
>>>>
>>>> B-O Bergman
>>>> Winzent Technologies
>>>>
>>>>> 16 juni 2016 kl. 08:45 skrev Grigory V. Korotov <grinux at mail.ru>:
>>>>>
>>>>> Hi!
>>>>>
>>>>> Is it possible to replace currently used ddr3 chips by higher dencity chips without rerouting pcb to get total 4Gb of Ram?
>>>>>
>>>>> Thanks
>>>>>
>>>>> Grigory.
>>>>>
>>>>> _______________________________________________
>>>>> elinux-MinnowBoard mailing list
>>>>> elinux-MinnowBoard at lists.elinux.org
>>>>> http://lists.elinux.org/mailman/listinfo/elinux-minnowboard
>>>> _______________________________________________
>>>> elinux-MinnowBoard mailing list
>>>> elinux-MinnowBoard at lists.elinux.org
>>>> http://lists.elinux.org/mailman/listinfo/elinux-minnowboard
>>> _______________________________________________
>>> elinux-MinnowBoard mailing list
>>> elinux-MinnowBoard at lists.elinux.org
>>> http://lists.elinux.org/mailman/listinfo/elinux-minnowboard
>> _______________________________________________
>> elinux-MinnowBoard mailing list
>> elinux-MinnowBoard at lists.elinux.org
>> http://lists.elinux.org/mailman/listinfo/elinux-minnowboard
>
> _______________________________________________
> elinux-MinnowBoard mailing list
> elinux-MinnowBoard at lists.elinux.org
> http://lists.elinux.org/mailman/listinfo/elinux-minnowboard
> _______________________________________________
> elinux-MinnowBoard mailing list
> elinux-MinnowBoard at lists.elinux.org
> http://lists.elinux.org/mailman/listinfo/elinux-minnowboard

_______________________________________________
elinux-MinnowBoard mailing list
elinux-MinnowBoard at lists.elinux.org
http://lists.elinux.org/mailman/listinfo/elinux-minnowboard