Mity CPU Platforms

04/18/2023

02:40 PM MitySOM-AM62, MitySOM-AM62A, & MitySOM-AM62P PCB Development: RE: SOM_62A: Support for CPU core operating at 0.75V instead of 0.85V

Hi Rune,
The VDD_CORE voltage is set in the device tree and thus configured when the kernel loads.
To switch to... Jonathan Cormier

05:57 AM MitySOM-AM62, MitySOM-AM62A, & MitySOM-AM62P PCB Development: SOM_62A: Support for CPU core operating at 0.75V instead of 0.85V

Short question: Does the SOM_62 and SOM_62A support 0.75V core operation? If yes, how is this selected.
BR Rune Knutsen rune knutsen

04/17/2023

08:50 PM MitySOM-5CSX Altera Cyclone V Software Development: RE: Set Preloader image timestamp to zero

Hi Saumil,
Take a look here:
https://u-boot.readthedocs.io/en/latest/build/reproducible.html
Seems like defi... Michael Williamson

07:44 PM MitySOM-5CSX Altera Cyclone V Software Development: Set Preloader image timestamp to zero

Hello,
We have configured jenkins to create the preloader binary for us. We want the ability to generate the exact... Saumil Patel

04/10/2023

02:16 PM MityDSP-L138 (ARM9 Based Platforms) Software Development: RE: Cannot establish an ethernet connection

Great, note that at least for this boot. The ethernet phy came up as address 3 so it would have worked with the orig... Jonathan Cormier

02:05 PM MityDSP-L138 (ARM9 Based Platforms) Software Development: RE: Cannot establish an ethernet connection

With new image:... Vadym Kolesnyk

04/07/2023

09:46 PM MityDSP-L138 (ARM9 Based Platforms) Software Development: RE: Cannot establish an ethernet connection

Thanks.... Jonathan Cormier

08:35 PM MityDSP-L138 (ARM9 Based Platforms) Software Development: RE: Cannot establish an ethernet connection

80-000268RI-3 B
14012628
14-11-05... Vadym Kolesnyk

08:02 PM MityDSP-L138 (ARM9 Based Platforms) Software Development: RE: Cannot establish an ethernet connection

Can you provide your 80- number and serial number from the barcode on your devkit?
If you stop at u-boot, does the... Jonathan Cormier

07:21 PM MityDSP-L138 (ARM9 Based Platforms) Software Development: RE: Cannot establish an ethernet connection

I use critical link industrial io baseboard Vadym Kolesnyk

06:52 PM MityDSP-L138 (ARM9 Based Platforms) Software Development: RE: Cannot establish an ethernet connection

Initially, I could connect via a local network, i.e., I just connected the devkit to the router (without changing any... Vadym Kolesnyk

05:35 PM MityDSP-L138 (ARM9 Based Platforms) Software Development: RE: Cannot establish an ethernet connection

I'm sorry, but you need to answer my questions if we are going to get to the bottom of this. Jonathan Cormier

04:49 PM MityDSP-L138 (ARM9 Based Platforms) Software Development: RE: Cannot establish an ethernet connection

The output I obtained now is in the attached file. Now I want to connect directly to the PC to eliminate router influ... Vadym Kolesnyk

03:39 PM MityDSP-L138 (ARM9 Based Platforms) Software Development: RE: Discussion: Kernel hangs on "Waiting for root device /dev/mmcblk0p1..."

Hello, I'm sorry for the delay. I have reprogrammed u-boot as you advised. Loading from a "guilty" SD card is as fast... Vadym Kolesnyk

04/04/2023

01:22 PM MityDSP-L138 (ARM9 Based Platforms) Software Development: RE: Discussion: Kernel hangs on "Waiting for root device /dev/mmcblk0p1..."

Vadym Kolesnyk wrote in message#6300:
> Yes, the md5 sum and all installation process outputs are equal.
Okay that ... Jonathan Cormier

11:45 AM MityDSP-L138 (ARM9 Based Platforms) Software Development: RE: Discussion: Kernel hangs on "Waiting for root device /dev/mmcblk0p1..."

Yes, the md5 sum and all installation process outputs are equal.

So, I tried to set up a newly-bought SD card tod... Vadym Kolesnyk

04/03/2023

09:15 PM MityDSP-L138 (ARM9 Based Platforms) Software Development: RE: Discussion: Kernel hangs on "Waiting for root device /dev/mmcblk0p1..."

> I understand the only possible solution is to reset radically devkit somehow, but why this strange bug may have hap... Jonathan Cormier

08:06 PM MityDSP-L138 (ARM9 Based Platforms) Software Development: RE: Discussion: Kernel hangs on "Waiting for root device /dev/mmcblk0p1..."

> Did you grab the mityomap-full.tgz file from MDK_2014-01-13? I just want to follow the same steps and make sure it ... Jonathan Cormier

07:51 PM MityDSP-L138 (ARM9 Based Platforms) Software Development: RE: Discussion: Kernel hangs on "Waiting for root device /dev/mmcblk0p1..."

Thanks for the update.
Did you grab the mityomap-full.tgz file from MDK_2014-01-13? I just want to follow the sam... Jonathan Cormier

06:02 PM MityDSP-L138 (ARM9 Based Platforms) Software Development: RE: Discussion: Kernel hangs on "Waiting for root device /dev/mmcblk0p1..."

Sorry if I have described my problem not clearly. Yes, I booted this devkit successfully with my sd card before (abou... Vadym Kolesnyk

01:11 PM MityDSP-L138 (ARM9 Based Platforms) Software Development: RE: Discussion: Kernel hangs on "Waiting for root device /dev/mmcblk0p1..."

Vadym Kolesnyk wrote in message#6294:
> I use the standard devkit. When I had problems with the SD card (for example... Jonathan Cormier

04/01/2023

05:50 AM MityDSP-L138 (ARM9 Based Platforms) Software Development: RE: Discussion: Kernel hangs on "Waiting for root device /dev/mmcblk0p1..."

I use the standard devkit. When I had problems with the SD card (for example, bad partition), I got these messages:
... Vadym Kolesnyk

03/31/2023

09:30 PM MityDSP-L138 (ARM9 Based Platforms) Software Development: RE: Discussion: Kernel hangs on "Waiting for root device /dev/mmcblk0p1..."

If this is a custom baseboard without the card detect hooked up. Then this could also happen.
For an example of d... Jonathan Cormier

09:24 PM MityDSP-L138 (ARM9 Based Platforms) Software Development: RE: Discussion: Kernel hangs on "Waiting for root device /dev/mmcblk0p1..."

That is unexpected. Your boot log looks like everything is correct. It looks similar to if you had no sdcard plugged... Jonathan Cormier

04:01 PM MityDSP-L138 (ARM9 Based Platforms) Software Development: Discussion: Kernel hangs on "Waiting for root device /dev/mmcblk0p1..."

I made rootfs on an SD card according to this wiki page (https://support.criticallink.com/redmine/projects/arm9-platf... Vadym Kolesnyk

11:14 AM MityDSP-L138 (ARM9 Based Platforms) Software Development: RE: Increasing CPU clock OMAPL138

Hi Mike,
Ah, makes sense.
For the time being I'll stick with controlling the clock frequency with Linux.
Thank... Kim Nielsen

03/29/2023

07:03 PM MityDSP-L138 (ARM9 Based Platforms) Software Development: RE: Increasing CPU clock OMAPL138

Hi Kim,
I think the reason why the uBoot Critical Link publishes is using 300 MHz is because the Revision 1 silico... Michael Williamson

03/27/2023

02:12 PM MityDSP-L138 (ARM9 Based Platforms) Software Development: RE: Increasing CPU clock OMAPL138

Alright.
Is there is no way to change the default frequency from 300Mhz to e.g. 372MHz with U-Boot?
As far as I ... Kim Nielsen

02:01 PM MityDSP-L138 (ARM9 Based Platforms) Software Development: RE: Increasing CPU clock OMAPL138

Hi Kim,
I think the issue is that the voltage scaling needs to be done to default
to a higher frequency.
The P... Michael Williamson

02:00 PM MityDSP-L138 (ARM9 Based Platforms) Software Development: RE: Increasing CPU clock OMAPL138

I don't see an obvious default frequency config in the kernel, I'd guess that it stays with whatever frequency was se... Jonathan Cormier

01:44 PM MityDSP-L138 (ARM9 Based Platforms) Software Development: RE: Increasing CPU clock OMAPL138

I actually got another question.
By default, the cpu frequency seems to always be 300 MHz.
Is this value hardco... Kim Nielsen

03/24/2023

05:24 PM MityDSP-L138 (ARM9 Based Platforms) Software Development: RE: Increasing CPU clock OMAPL138

Kim Nielsen wrote in message#6283:
> It's our own "experimental" kernel.
> It seems to be working now. The issue wa... Jonathan Cormier

12:21 PM MityDSP-L138 (ARM9 Based Platforms) Software Development: RE: Increasing CPU clock OMAPL138

It's our own "experimental" kernel.
It seems to be working now. The issue was that the pll0 registers were apparentl... Kim Nielsen