Activity
From 11/07/2024 to 12/06/2024
12/03/2024
- JC 04:13 PM Software Development: RE: flash script needs to boot enable the device
- Hi Nathan, Thanks for letting us know. I've pushed the fix to the kirstone and scarthgap branches.
12/02/2024
- JC 07:18 PM Software Development: RE: u-boot environment initialization
- > The probable source of my confusion is that I thought those we were same place.
> ...
Correct. eMMC spec adds two unique boot sections and an rpmb? section. Which are distinct from the regular flash storage area seen on sdcards. - JC 04:56 PM Software Development: RE: u-boot environment initialization
- Pushed fix to u-boot 2023 and 2024
https://support.criticallink.com/gitweb/?p=u-boot-ti.git;a=commit;h=bb86b0aa5782cc2dcf2fe95c6009c93ae9394263
Test printing the environment after having saved it from u-boot - JC 04:10 PM Software Development: RE: u-boot environment initialization
- It looks to me like this is misconfigured in both 2023 and 2024 u-boot.
Here is a trimmed-down version of the u-boot config. - NW 03:32 PM Software Development: RE: u-boot environment initialization
- In my checks I tested both blocks. Reading back mmcblk0boot0 did show the environment. Reading back mmcblk0 did not have the environment. This is why I was speculating that Linux wasn't really writing to the actual device.
The prob... - JC 03:14 PM Software Development: RE: u-boot environment initialization
- Note according to our emmc boot instructions. https://support.criticallink.com/redmine/projects/mitysom_am62x/wiki/Boot_EMMC#EMMC-Layout
We do expect the environment to be in the boot0 block. My first guess is this was tested with th... - JC 03:08 PM Software Development: RE: u-boot environment initialization
- > Or did you mean you dumped out /dev/mmblk0boot0 in your check?
Can you confirm this part of Mike's question?
It sounds like you were writing to mmcblk0boot0 but u-boot is using mmblk0 instead for the environment location. If that'... - NW 01:38 PM Software Development: RE: u-boot environment initialization
- How would I determine that?
In uboot, there is the mmc command and the existing script sets mmcdev to 0 and bootpart to 0 (once it failed to boot at mmcdev 1, bootpart 1:2).
I was under the impression that the mmcblk0boot0 was a ...
11/30/2024
- MW 12:16 PM Software Development: RE: u-boot environment initialization
- Hi Nathan,
Based on this from your comment:
_So I took an image of first 9000 512 blocks of /dev/mmcblk0 ..._
I am wondering if uBoot is booting from /dev/mmcblk0 and not /dev/mmblk0boot0 (which would explain your results). Or ...
11/28/2024
- IK 02:46 AM Software Development: RE: USB Device mode communication problems
- Hello, Mike.
USB0 device settings.
!clipboard-202411281135-xfih4.png!
H/W
USB0 Connector : Mini-B
The circuit has a common-mode filter and a TVS. There are no special connections.
Vbus is designed to be a reference ...
11/26/2024
- We are trying to initialize the u-boot environment from linux kernel space.
We are following the flash script steps that basically unlock the special boot device and dd the file in to the correct location...
11/22/2024
- Fyi we recently discovered the flash script located here...
https://support.criticallink.com/gitweb/?p=meta-mitysom.git;a=blob;f=recipes-devtools/mitysom-auto-flash-emmc/files/mitysom-am62x/flash.sh;h=11d09737f57e5e5bdfd8533e1fa2374a5...
11/21/2024
- MW 02:00 PM Software Development: RE: Request MTBF Data
- Hello Iseori,
We only have data for the 6254-TX-DAE-RI, which should be worse than the model you have.
At 25C, the MTBF is 243779 hours computed using method S217F2 in a GF3 environment. Please note that this value derates to app... - Our customer is requesting MTBF.
Please supply the MTBF data for the 6252-TX-X8D-RI.
Thank you and best regards,
11/20/2024
- JC 08:23 PM Software Development: RE: meta-arago-extras/recipes-core/matrix removed
- Thanks Nathan. I have noticed that on the SDK 10 builds. TI recently removed the matrix-gui recipe so we just need to remove our bbappend.
- NW 07:10 PM Software Development: RE: meta-arago-extras/recipes-core/matrix removed
- woops, that submitted early on me...
Anyway the warnings are...
WARNING: No recipes in default available for:
/work/sources/meta-mitysom/dynamic-layers/meta-arago-extras/recipes-core/matrix/matrix-gui_2.0.bbappend
No recipes in... - This causes some warnings b/c meta-mitysom still appends it...
11/19/2024
- JC 04:48 PM Software Development: RE: How to use the real time linux kernal
- TI maintains a separate -rt kernel branch, that has the realtime kernel patches applied. I should be able to apply the same patches to our kernel commits to create a comparable -rt branch that supports our SOM.
- NW 02:35 PM Software Development: RE: How to use the real time linux kernal
- Will we get this for free in SDK 10? I think it is kernel 6.6. I thought RT went mainline completely in 6.12? I am probably wrong.
- JC 03:03 PM Software Development: RE: Ethernet 10Mbps Cannot ping
- Hi Iseori,
I double-checked your schematic's phy and magnetics parts, and nothing looked wrong.
Note that the magnetics symbols J7/J8 are not correct. However, I looked up the "lpjg16414aenl":https://www.l-p.com/file/datasheet/lpjg1...
11/15/2024
- JC 02:31 PM Software Development: RE: eMMC Linux boot failed
- The following commits were tested extensively on the 6.1 and 6.6 kernel. I can apply them on the 5.10 kernel however I won't be able to do any long term testing beyond making sure it boots once or twice.
emmc:
https://support.critic... - IK 12:48 AM Software Development: RE: eMMC Linux boot failed
- Hi, Jonathan
Thank you for your prompt response.
We should be able to resolve this issue, currently at “Kernel: 5.10.168-01697-g501ba3235e01-dirty”.
Can you please check if there is a workaround in the 5.10 kernel?
Thank you a...
11/13/2024
- JC 02:48 PM Software Development: RE: eMMC Linux boot failed
- Jonathan Cormier wrote in message#6796:
> Hi Iseori,
> ...
Note: Please click the watch star on the errata page to get email notifications when new errata and PCN are released.
- JC 02:47 PM Software Development: RE: eMMC Linux boot failed
- Hi Iseori,
We have released an errata relating to emmc boot detection. See here: https://support.criticallink.com/redmine/projects/mitysom_am62x/wiki/Errata_and_Module_Product_Change_Notifications.
Fixes for this have been released... - Occurs on certain products, boots normally when product cools down.
Please review the below, attached and let us know of opinions.
* Version
# OS: Debian GNU/Linux 12 (bookworm) aarch64
# Host: Critical Link MitySOM-AM62x
# Kern... - JC 02:33 PM Software Development: RE: Ethernet 10Mbps Cannot ping
- Hi Iseori,
I tested a 10Mbps link using our devkit and the KSZ9131RNXI PHY and had no issues. The PHY linked and I was able to send network traffic without issue. We have not used the DP83867IR phy in any design.
TIs e2e has quit...
100/1000Mbps work well.
But, 10Mbps is only LINK and ping does not work. (both fixed 10M and auto-negotiation)
Please review the below, attached and let us know of opinions.
* Version
# OS: Debian GNU/Linux 12 (bookworm) aarc...- MW 11:17 AM Software Development: RE: USB Device mode communication problems
- Hello,
How is the USB0 device configured? As a gadget device (rndis, cdc, serial port, mass storage device, etc.)?
We have not seen this behavior here, I'd like to try to reproduce your setup if possible.
With regards,
Mike
- USB0 is set to device mode.
It stops working on some laptops.
The driver is detected but communication stops.
The problem does not occur when connecting through a USB hub.
Have you ever seen a similar case?
* Version
# OS: De...