Hi Board designers, 

Refer below inputs for Reading DEVICE_ID related queries.

1. Is there a device ID available that I can read?

The SoC provides register that could be read to identify the device.

2. Can you guide me how to read the device ID?

Below are the steps to read the device ID. Please refer the below TRM section.

1.7 Device Identification

6.1.1.3.3 WKUP_CTRL_MMR Registers
Table 6-1303. cfg0, WKUP_CTRL_MMR0_CFG0 Registers, Base Address=4300 0000H, Length=131072

14h,32, WKUP_CTRL_MMR_JTAGID,4300 0014h
18h, 32, WKUP_CTRL_MMR_JTAG_USER_ID,4300 0018h

I was analyzing the TRM, and it is refered the DEVICE_ID in table1-1



What is the purpose of this value and what register I can find it?

Please refer data sheet 

3.Is the ID unique for each device?

This ID can be used to identify the SoC device type and is not unique to every device.

4. Is there an ID that is unique to each device?

The MAC ID is unique to each device. 

For now, we have the MAC ID that would be unique to each device,

Reading MAC ID 

This is a 48-bit value. refer TRM for the MSB and LSB register.

Please refer below MAC ID read from one of the devices (SoC).

MAC Address Lookup

1c-63-49-1b-c1-83

FYI, here is the info from another device.

1c-63-49-22-5f-be

Refer below. FAQ to read the device ID.

(+) [FAQ] PROCESSOR-SDK-AM62X: How to read device Id register - Processors forum - Processors - TI E2E support forums

Regards,

Sreenivasa

Hi Board Designers,

Please refer information related to AM62Ax

Regards,

Sreenivasa

Hi Board Designers,

Please refer information related to JTAG ID

Could you tell me the purpose of MMR0_JTAG_USER_ID? When customer should use this register?

The register tells the device type information, as documented in the TRM section 1.7 "Device Identification". It can be used in software to configure the device accordingly.

For example, U-Boot and Linux kernel uses this register to support all the AM62x device variants. But Linux user space application doesn't need to care about this register.

Regards,

Sreenivasa

Hi Board Designers,

Please refer information related to AM62L

Regards,

Sreenivasa