Mity CPU Platforms

10/04/2023

DV 04:27 PM MitySOM-5CSX Altera Cyclone V Software Development: RE: MMC/SD card: Bus width is 1 and not 4

Hello,
Running in 1 bit mode was a bug in our reference dts, which was fixed in the following patch: https://support.criticallink.com/gitweb/?p=linux-socfpga.git;a=blobdiff;f=arch/arm/boot/dts/socfpga_mitysom5csx_devkit.dts;h=f7ce4754... Daniel Vincelette

VJ 11:30 AM MitySOM-5CSX Altera Cyclone V Software Development: MMC/SD card: Bus width is 1 and not 4

Hi
We have an SD card connected to the MitySOM-5CSX the same way as on the evaluation platform with 4 data lines.
When running SD card read tests we have discovered that the read speed is only 6 MBytes/s, and that is not fast enough i... V J

JC 01:28 PM MitySOM-AM62, MitySOM-AM62A, & MitySOM-AM62P Software Development: RE: Error building kernel and rootfs on host having Ubuntu 23.04 with docker

Well isn't that strange. If I checkout the repo fresh, I see the commit. I'm not sure why its not showing up for you. Can you reach out to Tom and he can setup a quick video call with me. I'm sure we can get this sorted pretty quickly. Jonathan Cormier

RG 04:36 AM MitySOM-AM62, MitySOM-AM62A, & MitySOM-AM62P Software Development: RE: Error building kernel and rootfs on host having Ubuntu 23.04 with docker

Hi,
  We have followed the step as suggested, still facing same issue.
Requested output is here.
rohini:~/projects/AM62x/sources/meta-mitysom$ git checkout dunfell
Previous HEAD position was cb7df85 u-boot: factoryconfig: Update U... Rohini Gawand

10/03/2023

RM 05:49 PM MityDSP-L138 (ARM9 Based Platforms) Software Development: RE: linux-v4.19 kernel

Thanks, any hints would be much appreciated. Richard Miller-Smith

JC 05:39 PM MityDSP-L138 (ARM9 Based Platforms) Software Development: RE: linux-v4.19 kernel

Okay looks like we didn't document our yocto build for the L138. I'll see if I can capture the steps if your interested.
The files section contains a sdcard image and filesystem for the 2018.04 release.
https://support.criticallin... Jonathan Cormier

RM 05:26 PM MityDSP-L138 (ARM9 Based Platforms) Software Development: RE: linux-v4.19 kernel

Indeed, I should have said, I don't need it for this project. Richard Miller-Smith

JC 05:20 PM MityDSP-L138 (ARM9 Based Platforms) Software Development: RE: linux-v4.19 kernel

Richard Miller-Smith wrote in message#6506:
> Thanks Jonathan,
> ...
I assume your not using the DSP/dspbios then? Jonathan Cormier

RM 05:15 PM MityDSP-L138 (ARM9 Based Platforms) Software Development: RE: linux-v4.19 kernel

Thanks Jonathan,
We were indeed using a v3.2 kernel built with the 2012 tools. However, I'll try using the newer MDK and research Yocto a bit more (it's rather passed me by so far).
I'll let you know how I get on.
Richard Miller-Smith

JC 05:01 PM MityDSP-L138 (ARM9 Based Platforms) Software Development: RE: linux-v4.19 kernel

> I've seen that there are still commits going into your linux-davinci repository and even an updated linux-v4.19 kernel. I've given this a very quick try with a modern buildroot, but not getting very far (no kernel output).
I'd recom... Jonathan Cormier

JC 05:00 PM MityDSP-L138 (ARM9 Based Platforms) Software Development: RE: linux-v4.19 kernel

Thomas Catalino wrote:
> (posted on behalf of a customer)
> ...
What kernel are you moving from? Do you use dsplink/dspbios? The 3.2 kernel is the latest kernel which supports the older dsplink which is why I ask.
Any of the kernels... Jonathan Cormier

TC 03:40 PM MityDSP-L138 (ARM9 Based Platforms) Software Development: linux-v4.19 kernel

(posted on behalf of a customer)
I currently have a project with to revisit a system based on the MityDSP-L138 platform, mainly to update the system's self-test and calibration procedures.
I've started blowing the dust off our b... Thomas Catalino

10/02/2023

DV 07:08 PM MitySOM-5CSX Altera Cyclone V Software Development: RE: Moving Forward with U-Boot and Quartus 22.1std

Hello,
We do have a reference for building using the newer flow for the preloader/bootloader but it's for the socfpga_v2019.10 branch and Quartus 20.1, which can be found here: https://support.criticallink.com/redmine/projects/mityarm... Daniel Vincelette

SA 07:48 AM MitySOM-5CSX Altera Cyclone V Software Development: Moving Forward with U-Boot and Quartus 22.1std

We are currently using 5CSX-H6-42A-RC with our own base board.
I have recently upgraded Quartus 18.1 to the more recent version Quartus Prime 22.1std. Additionally I made changes to the Platform designer in the HPS system.
So in order ... Shahad Alrawi

09/30/2023

JC 12:43 PM MityDSP-L138 (ARM9 Based Platforms) PCB Development: RE: MityDSP-L138F Boot issue, I2C0 (PCB Dev Post)

Jonathan,
Excellent - thank you for merging. We will pull in those official changes.
I just received a UART/FTDI cable so I should be able to check the boot log via CLI. I'll let you know what I find on Monday.
Best,
Jon Jon Cox

09/29/2023

JC 09:31 PM MityDSP-L138 (ARM9 Based Platforms) PCB Development: RE: MityDSP-L138F Boot issue, I2C0 (PCB Dev Post)

> We have tested the compiled branch and it seems to be working as intended. We have not noticed any I2C hangs yet after 100 boot cycles, so I think it is safe to say the kernel changes are at least as stable as the live one. If you can ... Jonathan Cormier

09/26/2023

JC 01:59 PM MitySOM-AM62, MitySOM-AM62A, & MitySOM-AM62P Software Development: RE: Error building kernel and rootfs on host having Ubuntu 23.04 with docker

> You are not currently on a branch.
Aw okay. Lets checkout the dunfell branch and pull the changes again. Jonathan Cormier

RG 06:29 AM MitySOM-AM62, MitySOM-AM62A, & MitySOM-AM62P Software Development: RE: Error building kernel and rootfs on host having Ubuntu 23.04 with docker

Hi Jonathan,
   When we try to pull git repository, it is asking us to mention
branch, here is the output:
rohini:~/projects/AM62x$ cd sources/meta-mitysom/
rohini:~/projects/AM62x/sources/meta-mitysom$ git pull
remote: Enumerati... Rohini Gawand

09/25/2023

JC 01:46 PM MitySOM-AM62, MitySOM-AM62A, & MitySOM-AM62P Software Development: RE: Error building kernel and rootfs on host having Ubuntu 23.04 with docker

Hi Rohini,
Can you check the value of "LINUX_VERSION" in the file sources/meta-mitysom/recipes-kernel/linux/linux-cl-ti_5.10.bb. If its not 5.10.168, then you haven't pulled the latest changes.
Can you post the output to the follo... Jonathan Cormier

RG 05:32 AM MitySOM-AM62, MitySOM-AM62A, & MitySOM-AM62P Software Development: RE: Error building kernel and rootfs on host having Ubuntu 23.04 with docker

As suggested we did try new commit with fresh clone but error still persist.
ERROR: linux-cl-ti-5.10.158+gitAUTOINC+c66d84b258-r0 do_kernel_version_sanity_check: Package Version (5.10.158+gitAUTOINC+c66d84b258) does not match of kern... Rohini Gawand

09/21/2023

JC 01:42 PM MitySOM-AM57X PCB Development: RE: Development Kit Microphone Input Capture

Tay Barrett wrote in message#6490:
> Hi Mike,
> ...
I don't think we've dealt with phantom-powered mics before. I'd guess you could use something like this, https://www.amazon.com/Neewer-1-Channel-Microphone-Condenser-Recording/dp/B0... Jonathan Cormier

TB 03:52 AM MitySOM-AM57X PCB Development: RE: Development Kit Microphone Input Capture

Hi Mike,
Thanks for replying. I will check that functionality as soon as I can and will let you know if there are any issues.
In the mean time do you have any advice on powering a headset/microphone that requires phantom power?
Tay Barrett

JC 01:38 PM MitySOM-AM57X Software Development: RE: AM5749 Header Files for PRU

Tay Barrett wrote:
> Hi,
> ...
I can't say for sure, you may need to ask on the TI e2e for a definitive answer. But if I look at the AM572x and AM574x TRMs, both have the PRUSS registers at the same memory addresses.
https://www.ti.c... Jonathan Cormier

TB 06:14 AM MitySOM-AM57X Software Development: RE: AM5749 Header Files for PRU

For clarification, the example i am using is Lab 2 from here: https://software-dl.ti.com/processor-sdk-linux/esd/AM62X/08_03_00_19/exports/docs/common/PRU-ICSS/PRU-Hands-on-Labs.html
Tay Barrett

TB 05:25 AM MitySOM-AM57X Software Development: AM5749 Header Files for PRU

Hi,
I am using the MitySOM-AM57x development board, in conjunction with code developed from TI's PRU training series. I am wondering if the #include header files for the AM572x board (found in the example labs) are applicable for AM57... Tay Barrett

09/20/2023

JC 02:23 PM MitySOM-AM57X PCB Development: RE: Development Kit Microphone Input Capture

Scratch that, the input is connected to Line2 and is set up for Stereo input so the datasheet example I included above doesn't apply. I added a section to the wiki to modify the board for microphone in. Please let me know if you try it... Jonathan Cormier

JC 02:00 PM MitySOM-AM57X PCB Development: RE: Development Kit Microphone Input Capture

The 57x devkit audio input was hooked up as a Line Input. See the snippet from the datasheet.
!clipboard-202309200952-w0ejg.png!
According to the TLV320AIC3104 datasheet, to support a mic in, it should be hooked up like
!clipb... Jonathan Cormier

MW 10:11 AM MitySOM-AM57X PCB Development: RE: Development Kit Microphone Input Capture

Hi Tay,
Have you tried the commands listed here?
https://support.criticallink.com/redmine/projects/mitysom_am57x/wiki/Example_audio_line
-Mike Michael Williamson

TB 01:25 AM MitySOM-AM57X PCB Development: Development Kit Microphone Input Capture

Hi,
I am working with the AM57x Development Kit with the MitySom-AM57x SOM.
I require microphone capture from the line input and have attempted adjusting amixer settings according to the Wiki and have had no luck in capturing microph... Tay Barrett

09/12/2023

JC 08:36 PM MityDSP-L138 (ARM9 Based Platforms) PCB Development: RE: MityDSP-L138F Boot issue, I2C0 (PCB Dev Post)

Jonathan,
Excellent, thanks for the steadfast effort on this!
Interesting regarding the DONE LED. We are not certain why it slowly lights either, as we observe it being strongly driven HIGH once the boot finishes. The POWER GOOD L... Jon Cox

JC 08:24 PM MityDSP-L138 (ARM9 Based Platforms) PCB Development: RE: MityDSP-L138F Boot issue, I2C0 (PCB Dev Post)

Jon Cox wrote in message#6483:
> Jonathan,
> ...
Okay will do. I was told someone would have time next week to look it over and merge it in.
>
> ...
Note the DONE led is driven by the fpga after it is programmed and is an open drai... Jonathan Cormier

JC 07:54 PM MityDSP-L138 (ARM9 Based Platforms) PCB Development: RE: MityDSP-L138F Boot issue, I2C0 (PCB Dev Post)

Jonathan,
We have tested the compiled branch and it seems to be working as intended. We have not noticed any I2C hangs yet after 100 boot cycles, so I think it is safe to say the kernel changes are at least as stable as the live one. ... Jon Cox

09/11/2023

JC 05:52 PM MityDSP-L138 (ARM9 Based Platforms) PCB Development: RE: MityDSP-L138F Boot issue, I2C0 (PCB Dev Post)

Jonathan,
Fantastic! This is exactly what we were looking to implement, and the fact that it is automatic as-is is even better. We've compiled the kernel and will test it on our systems today/tomorrow and let you know whether it works... Jon Cox

JC 05:42 PM MityDSP-L138 (ARM9 Based Platforms) PCB Development: RE: MityDSP-L138F Boot issue, I2C0 (PCB Dev Post)

Let me know if it works and i'll merge the commits into the main 3.2 branch Jonathan Cormier

JC 05:37 PM MityDSP-L138 (ARM9 Based Platforms) PCB Development: RE: MityDSP-L138F Boot issue, I2C0 (PCB Dev Post)

Its supposed to catch a bus hang and switch into bus recovery by itself.
I'd suggest going into drivers/i2c/i2c-core.c and changing dev_dbg to dev_err so you can see when the kernel tries to do these recoveries in dmesg. Jonathan Cormier

JC 05:32 PM MityDSP-L138 (ARM9 Based Platforms) PCB Development: RE: MityDSP-L138F Boot issue, I2C0 (PCB Dev Post)

Jonathan,
Excellent - thanks for the very quick and thorough fix on this.
Regarding the usage of these committed changes, will we have to invoke function calls to resolve the bus hang or should this potentially catch and fix any po... Jon Cox

JC 04:15 PM MityDSP-L138 (ARM9 Based Platforms) PCB Development: RE: MityDSP-L138F Boot issue, I2C0 (PCB Dev Post)

Hi Jon,
Can you try out the commits pushed to this branch and let me know if it works? I don't have time right now to try it out but it builds.
https://support.criticallink.com/gitweb/?p=linux-davinci.git;a=shortlog;h=refs/heads/mit... Jonathan Cormier

09/08/2023

JC 10:36 PM MityDSP-L138 (ARM9 Based Platforms) PCB Development: RE: MityDSP-L138F Boot issue, I2C0 (PCB Dev Post)

Jonathan,
Thank you for the very quick and thorough response. We have found the i2c-davinci driver in our MDK / board support package ARM/linux/linux-davinci/drivers/i2c/busses/i2c-davinci.c.
We are using the 3.2 kernel. Based on ... Jon Cox

JC 06:39 PM MityDSP-L138 (ARM9 Based Platforms) PCB Development: RE: MityDSP-L138F Boot issue, I2C0 (PCB Dev Post)

Note as is, the bus recovery I linked looks like it requires i2c gpio pins which probably won't work for the L138. In the newer kernel version they have a way to put the i2c module into a manual mode which doesn't require separate gpio ... Jonathan Cormier

JC 06:19 PM MityDSP-L138 (ARM9 Based Platforms) PCB Development: RE: MityDSP-L138F Boot issue, I2C0 (PCB Dev Post)

Jon Cox wrote:
> Hello,
> ...
This is almost certainly an i2c slave holding SDA low. I know on a separate project, I've seen particular issues with i2c slaves that use 16-bit addresses, but really any i2c slave could misbehave and hol... Jonathan Cormier

JC 05:38 PM MityDSP-L138 (ARM9 Based Platforms) PCB Development: MityDSP-L138F Boot issue, I2C0 (PCB Dev Post)

Hello,
We are developing on the MityDSP-L138F platform and have noticed an intermittent issue with the I2C bus hanging due to SDA being held LOW. We are uncertain whether it is a slave or the OMAP I2C Module pulling SDA low.
We are... Jon Cox

JC 06:40 PM MityDSP-L138 (ARM9 Based Platforms) Software Development: RE: MityDSP-L138F I2C bus hang (SDA held low)

Saw the other post first so responded there. https://support.criticallink.com/redmine/boards/11/topics/6473?r=6475 Jonathan Cormier

JC 05:38 PM MityDSP-L138 (ARM9 Based Platforms) Software Development: MityDSP-L138F I2C bus hang (SDA held low)

Hello,
We are developing on the MityDSP-L138F platform and have noticed an intermittent issue with the I2C bus hanging due to SDA being held LOW. We are uncertain whether it is a slave or the OMAP I2C Module pulling SDA low.
We are... Jon Cox

09/07/2023

JC 03:04 PM MitySOM-AM62, MitySOM-AM62A, & MitySOM-AM62P Software Development: RE: Error building kernel and rootfs on host having Ubuntu 23.04 with docker

The fix for this was pushed to the meta-mitysom dunfell branch last friday. Please let me know if you are still seeing errors.
You will need to pull the latest changes in sources/meta-mitysom (git pull). You may need to clean the l... Jonathan Cormier

TC 02:18 PM MitySOM-AM62, MitySOM-AM62A, & MitySOM-AM62P Software Development: Error building kernel and rootfs on host having Ubuntu 23.04 with docker

(posted on behalf of customer)
We were trying to develop environment for Kernel and Rootfs development using following link on host having Ubuntu 23.04 with docker, but ended up with some error
https://support.criticallink.com/re... Thomas Catalino