Activity
From 11/29/2024 to 12/28/2024
12/10/2024
- JC 03:03 PM Software Development: RE: USB Device mode communication problems
- https://e2e.ti.com/support/processors-group/processors/f/processors-forum/1449610/am625-backport-disable-usb-lpm-to-6-6-kernel--
- JC 02:44 PM Software Development: RE: USB Device mode communication problems
- iseori kang wrote in message#6830:
> Hello,
> ...
Good find. Interestingly in the 6.6 kernel both the AM62A and AM62P have those lpm-disable options for both USB0 and USB1.
https://lore.kernel.org/all/20240412-for-v6-10-am62-usb-t... - IK 09:46 AM Software Development: RE: USB Device mode communication problems
- Hello,
The team seems to have solved it with the following settings.
Fixed Dts file
snps,usb2-lpm-disable;
snps,usb2-gadget-lpm-disable;
best regards, - IK 03:06 AM Software Development: RE: USB Device mode communication problems
Forwarding additional content
Messages when USB is working
[ 259.298196] drivers/usb/dwc3/gadget.c:3693 dwc3_gadget_interrupt() event->type = 0/Disconnect
[ 267.416974] drivers/usb/dwc3/gadget.c:3693 dwc3_gadget_interrupt() even...- IK 12:21 AM Software Development: RE: USB Device mode communication problems
- Hello,
We noticed that the message is different for success and failure.
It is only coming from a few laptops.
(Lenovo family more often)
I've attached a schematic, nothing special.
USB1 is being used for internal communicatio...
12/09/2024
- JC 03:27 PM Software Development: RE: USB Device mode communication problems
- > Have you sent Jonathan a copy of your schematic, I can review that as well.
The schematic I received was only the ethernet section so its missing the USB. - MW 02:15 PM Software Development: RE: USB Device mode communication problems
- I have not been able to reproduce it here, yet.
Do you get any messages from "dmesg" when the communication is dropped?
If you unplug and replug the cable, does the connection re-establish?
Have you sent Jonathan a copy of your ... - IK 07:10 AM Software Development: RE: USB Device mode communication problems
- Hello, Mike.
Do you have any updates on this?
Thank you and best regards,
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 ...