PROCESSOR-SDK-AM62X: "Issue with SPI Device Driver Files Missing on AM62x E3 Evolution Board"

vaishnavi h v

Tool/software:

Hi,

I am working with the AM62x E3 Evolution Board and am encountering an issue with the SPI peripheral. My goal is to use the SPI interface for a user application, but I’ve run into a problem:

SPI Device Driver Files Missing: After booting the OS, I expected to find the SPI-related device driver files in the /dev/ directory. However, these files are not appearing.

I have followed the instructions provided on the TI webpage and made the necessary changes as outlined, including enabling the SPI device driver in make menuconfig. Despite these changes, the issue persists, and I suspect there may be a problem with the Device Tree Source (DTS) configuration or another related issue.

Could you please provide guidance on resolving this issue? Specifically, I need help ensuring that the SPI device driver files are correctly generated and visible in the /dev/ directory.

I have enabled spi drivers.i have shared the image which i have enabled but it is not showing the device driver file .suggest an method to solve it

over 1 year ago

0 Bin Liu over 1 year ago

TI__Guru**** 169641 points

Hi,

The domain expert is out of office for a week. Please expect delayed response.

0 vaishnavi h v over 1 year ago in reply to Bin Liu

Intellectual 260 points

Hii,

"Can I get any updates regarding the above query?"

0 Bin Liu over 1 year ago in reply to vaishnavi h v

TI__Guru**** 169641 points

Sorry for the delay. The expert will be back in office on Wednesday.

0 vaishnavi h v over 1 year ago in reply to Bin Liu

Intellectual 260 points

Hii,

"Can I get any updates regarding the above query?"

0 vaishnavi h v over 1 year ago in reply to vaishnavi h v

Intellectual 260 points

Hii,

"Can I get any updates regarding the above query?"

0 PRAHLAD Supeda over 1 year ago in reply to vaishnavi h v

TI__Expert 6180 points

Team, please hlep with your comments.

0 Nick Saulnier over 1 year ago in reply to PRAHLAD Supeda

TI__Guru** 102190 points

Hello,

The thread owner is out for the rest of September. Feel free to ping the thread in early October.

Regards,

Nick

0 vaishnavi h v over 1 year ago in reply to Nick Saulnier

Intellectual 260 points

Hello,

After booting the processor, I use the following commands to check for spidev:

lsmod | grep spidev

modprobe spidev

ls /sys/bus/spi/devices

ls /dev/spidev*

echo spi0.0 > /sys/bus/spi/drivers/spidev/bind/

ls /dev/spidev*

echo spi0.0 > /sys/bus/spi/drivers/spi-nor/unbind

echo spi0.0 > /sys/bus/spi/drivers/spidev/bind

ls -l /dev/spidev*

After entering these commands, I am able to find spidev. However, after unplugging the board and rebooting, spidev is missing again.

Can you suggest some methods to resolve this issue?

0 vaishnavi h v over 1 year ago in reply to Nick Saulnier

Intellectual 260 points

Hello ,

Can you please give a reply for this query.

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PROCESSOR-SDK-AM62X: "Issue with SPI Device Driver Files Missing on AM62x E3 Evolution Board"