I am trying doing what suggested by the webpage linked on the document :
it is this page :
it is everything OK until I compile with bitbake :
bitbake -f -c compile optee-os-imx
I get error in compilation of recipe "Bison".
What should I do in this case ? I tried looking online for the error and applying a patch for it but it then gave me other error.
I was hoping that following those instructions would have led me quickly to have optee for imx8mm but it is not at the moment.
Is there an update I can use ?