I was able to generate the workspace level token using the databricks cli.

I set the following details in the databricks cli profile(.databrickscfg) file:

host  = https://myworksapce.azuredatabricks.net/ 

account_id = (my db account id)

client_id     = (my sp client id)

client_secret = (generated from databricks worksapce)

After setting these, I ran the following command and generated the token:

databricks tokens create --lifetime-seconds 157680000